Crops · dekad 2026-08-11

Republic of Korea

Republic of Korea is 18th most stressed of 26 observations for this point in the season, and 1st steepest fall of 26, but from the 2nd highest starting level of those 26, so it is not a record fall once that is accounted for. None of its 14 crop regions is at a record low on the measure that adds up the whole season, marked below, which is also the slowest of them to move.

Four of Republic of Korea's 14 crop regions have never looked worse than they do today.

Three instruments, 14 regions, one day. Each region against its own 26 years, never against another region.

Vegetation, current

4 of 14 regions at their own record

Republic of Korea: 0.50 standard deviations below normal

Chungchongbuk-do. 4th lowest of 26 observations for this point in the season, 2001-2026Kyongsangbuk-do. lowest of 26 observations for this point in the season, 2001-2026Chollabuk-do. 5th lowest of 26 observations for this point in the season, 2001-2026Kyonggi-do. 10th lowest of 26 observations for this point in the season, 2001-2026Cheju-do. lowest of 26 observations for this point in the season, 2001-2026Kang-won-do. 2nd lowest of 26 observations for this point in the season, 2001-2026Chungchongnam-do. 10th lowest of 26 observations for this point in the season, 2001-2026Seoul. 11th lowest of 26 observations for this point in the season, 2001-2026Taejon. 2nd lowest of 26 observations for this point in the season, 2001-2026Kyongsangnam-do. lowest of 26 observations for this point in the season, 2001-2026Taegu. lowest of 26 observations for this point in the season, 2001-2026Chollanam-do. 14th lowest of 26 observations for this point in the season, 2001-2026Inchon. 17th lowest of 26 observations for this point in the season, 2001-2026Pusan. 10th lowest of 26 observations for this point in the season, 2001-2026

Water satisfaction

0 of 14 regions at their own record

Republic of Korea: 89% of crop water need met, normally 89%

Chungchongbuk-do. 13th lowest of 26 observations for this point in the season, 2001-2026Kyongsangbuk-do. 16th lowest of 26 observations for this point in the season, 2001-2026Chollabuk-do. 8th lowest of 26 observations for this point in the season, 2001-2026Kyonggi-do. 15th lowest of 26 observations for this point in the season, 2001-2026Cheju-do. 6th lowest of 26 observations for this point in the season, 2001-2026Kang-won-do. 18th lowest of 26 observations for this point in the season, 2001-2026Chungchongnam-do. 11th lowest of 26 observations for this point in the season, 2001-2026Seoul. 20th lowest of 26 observations for this point in the season, 2001-2026Taejon. 12th lowest of 26 observations for this point in the season, 2001-2026Kyongsangnam-do. 10th lowest of 26 observations for this point in the season, 2001-2026Taegu. 16th lowest of 26 observations for this point in the season, 2001-2026Chollanam-do. 9th lowest of 26 observations for this point in the season, 2001-2026Inchon. 14th lowest of 26 observations for this point in the season, 2001-2026Pusan. 8th lowest of 26 observations for this point in the season, 2001-2026

Rainfall, 3-month

0 of 14 regions at their own record

Republic of Korea: 1.46 standard deviations above normal

Chungchongbuk-do. 25th lowest of 26 observations for this point in the season, 2001-2026Kyongsangbuk-do. 23rd lowest of 26 observations for this point in the season, 2001-2026Chollabuk-do. 25th lowest of 26 observations for this point in the season, 2001-2026Kyonggi-do. 25th lowest of 26 observations for this point in the season, 2001-2026Cheju-do. 23rd lowest of 26 observations for this point in the season, 2001-2026Kang-won-do. 25th lowest of 26 observations for this point in the season, 2001-2026Chungchongnam-do. 25th lowest of 26 observations for this point in the season, 2001-2026Seoul. 23rd lowest of 26 observations for this point in the season, 2001-2026Taejon. 25th lowest of 26 observations for this point in the season, 2001-2026Kyongsangnam-do. 18th lowest of 26 observations for this point in the season, 2001-2026Taegu. 17th lowest of 26 observations for this point in the season, 2001-2026Chollanam-do. 23rd lowest of 26 observations for this point in the season, 2001-2026Inchon. 25th lowest of 26 observations for this point in the season, 2001-2026Pusan. 21st lowest of 26 observations for this point in the season, 2001-2026
Colour
at this region's normalfar below
Outline
A heavy outline is that region's worst in 26 years. Different facts: a region can be dark without an outline, meaning far from normal but it has been worse, or outlined without being darkest, a record but a narrow one.
One scale, three instruments
Every panel saturates at 2.5 standard deviations below that region's own normal, so a colour means the same distance-from-normal on all three. It does not mean the same consequence: these measure different things and move at different speeds. The figures under each heading stay in the instrument's own units.

A fourth instrument is not shown here. Cumulative vegetation, the crop-outcome measure closest to yield, reads 23rd of 26 for this country with no region at a record. It integrates from the start of the season, so it is structurally the last to move and reads calmest exactly when a fast deterioration is under way. It is left off the panels to keep three maps comparable in kind; it is on the page in full below.

Vegetation, cumulativethe harvest measure0of 14
Vegetation, current4of 14
Water satisfaction0of 14
Rainfall, 3-month0of 14
Temperature0of 14

What moved, and when

Each square is one dekad, and its shade shows how many of this country’s crop regions stood at their own worst on record for that point in the season. Rows are ordered by how much time each instrument summarises, shortest first, because a shorter window can move sooner. That order is fixed and is the same on every country page.

Vegetation, currentthis dekad
Soil moisturethis dekadalready elevated when this window opens, so nothing here shows when it began
Temperaturethis dekad
Rainfall, 3-monththe past 3 months
Vegetation, cumulativethe season so far, from sowing
Water satisfactionthe season so far, as a water balance
JanFebMarAprMayJunJulAug
none at a recordone regionfewer than a thirda third to three quartersmost or alltoo few regions reporting to saynot reported
What connects these rows

Nothing we can show. The driver is not identified here. This section says what moved and when. It never says because.

These 23 dekads were picked rather than derived. A shorter window changes which peak looks like the first, and a sequence visible inside a window may not exist outside it.

How bad is it, against this country’s own record

Five instruments read together our combination, not an observation

18th worst of 26 years at this point in the season

The 18th most stressed of 26 observations for this point in the season, 2001-2026, across 5 instruments read together

202620012026

What the instruments say

The canopy is in its best third, while water satisfaction is in mid-range and rainfall is in their best third.

Each track is that instrument’s own 26 years, worst on the left.

Vegetation, cumulative+0.3023rd lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.544th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction89%12th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.4824th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.4 °C14th highest of 26 observations for this point in the season, 2001-2026

Five instruments, each against its own 26 years for this point in the season. They are shown together because they can disagree: a region can sit at a record low on vegetation while water or rainfall sits in its best third. 38 of the 196 regions at a record low on current vegetation have water or rainfall sitting in its own best third at the same moment, about one in five. This page reports where each one sits and does not say what caused what.

Every region of Republic of Korea, worst to least

Each bar is the full spread of that region’s previous 25 years at this point in the season. The dot is this year. A dot at the left of a wide bar and a dot at the left of a narrow bar are different findings, which is why the history is drawn rather than described.

its normalworsebetterChollabuk-doChungchongbuk-doKyonggi-doCheju-doKyongsangbuk-doSeoulTaejonChungchongnam-doKang-won-doKyongsangnam-doTaeguChollanam-doPusanInchon

Regions in colour are at their worst on record. The rest are placed on the same scale so a single deep region inside an otherwise ordinary country reads differently from a country where the whole distribution has moved.

Chollabuk-do

-0.02 15th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative-0.0215th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.545th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction92%8th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.7425th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.8 °C13th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Chungchongbuk-do

-0.01 13th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative-0.0113th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.664th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction87%13th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+2.1125th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature24.8 °C15th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Kyonggi-do

+0.03 16th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.0316th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.3210th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction92%15th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.8625th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.5 °C12th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Cheju-do

+0.17 17th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.1717th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-1.19lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction89%6th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+0.8323rd lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture is not defined for this region at this point in the season.
Temperature26.0 °C19th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Kyongsangbuk-do

+0.22 14th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.2214th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-1.29lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction86%16th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.2823rd lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.0 °C15th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Seoul

+0.37 22nd lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.3722nd lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.1211th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction94%20th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.0823rd lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.8 °C9th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Taejon

+0.37 22nd lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.3722nd lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.882nd lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction87%12th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+2.0625th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.6 °C13th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Chungchongnam-do

+0.38 22nd lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.3822nd lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.1210th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction88%11th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.8025th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.7 °C12th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Kang-won-do

+0.42 20th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.4220th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.432nd lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction90%18th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.6925th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature22.7 °C16th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Kyongsangnam-do

+0.48 23rd lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.4823rd lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-1.35lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction88%10th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+0.1118th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.2 °C16th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Taegu

+0.57 23rd lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.5723rd lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-1.62lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction85%16th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+0.3717th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature25.2 °C16th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Chollanam-do

+0.77 25th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+0.7725th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current+0.0714th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction90%9th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.3323rd lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature26.2 °C13th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Pusan

+1.74 26th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+1.7426th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current-0.2910th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction99%8th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+0.6421st lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture is not defined for this region at this point in the season.
Temperature25.2 °C18th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

Inchon

+1.78 26th lowest of 26 observations for this point in the season, 2001-2026

20012026
Vegetation, cumulative+1.7826th lowest of 26 observations for this point in the season, 2001-2026
Vegetation, current+0.2217th lowest of 26 observations for this point in the season, 2001-2026
Water satisfaction92%14th lowest of 26 observations for this point in the season, 2001-2026
Rainfall, 3-month+1.4025th lowest of 26 observations for this point in the season, 2001-2026
Soil moisturenot reportedSoil moisture has not reported for this dekad. Its newest observation is 1 dekad behind the crop-outcome instrument.
Temperature26.9 °C4th highest of 26 observations for this point in the season, 2001-2026

same dekad, 2001-2025

This measurement is of the crop canopy and not of what stressed it: heat, drought, disease and late planting are not separable here, which is why no claim on this page names a cause.

Kristjan Lepik (2026). The Long Swell, Crops. thelongswell.com