9 hot days so far, 8th of Hamburg's 91 summers.

Hot here means 29.9 °C or above, a level about one summer day in twenty used to reach at this station between 1971 and 2000. The bar has not moved; the number of days clearing it has. Every year is counted to 8 August, so a part-finished summer is never set against complete ones. That threshold is Hamburg's own. It is not a national standard and it is not comparable with another city's: every figure on this page is measured against this station and nothing else.

1 night so far that never dropped below 20 °C. No multiple is quoted here. Hamburg recorded 1 in the whole of 1961-1990 by this date, so a ratio against that base would be arithmetic rather than evidence. 24 of the 42 cities are gated this way.

Hamburg's hottest day this year, 39.1 °C, is 2nd on this record. It matches 2022 exactly, the dot on the drop line. A tie is not a record: the rank counts earlier years at or above 2026, so a year that equals it keeps 2026 off first place. A typical summer here peaks at 31.9 °C. Its hot-day count is 8th of 91: a count and a peak are different claims, and neither borrows the other's rank.

42 cities are measured this way, each against its own record. See them on the map