Hamburg Weather in September
In September, Hamburg averages a high of 19°C (66°F) and a low of 11°C (51°F), from 55 years of daily records (1971–2026).
19°C
Average high
66°F
11°C
Average low
51°F
31°C
Record high
89°F · September 18, 2018
2°C
Record low
35°F · September 30, 2003
What September Is Like in Hamburg
- The warmest September in the record was 1999; the coldest was 1996.
At least 1 mm of rain falls on 34% of September days, and the month averages 66 mm in total.
Warmest: 1999 (23.5°C)Latest: 2025 (20.3°C)10-year averageLong-run average (18.7°C)
Look Up a Day in September
See the weather in Hamburg on any September date, year by year.
Source: NOAA GHCN-Daily, Hamburg-Sankt Pauli (1971–2000); Hamburg Fuhlsbuettel (1996–2026). Averages cover 1971–2026. How we compute this