Best Time to Visit Hamm
Best time: Jun, Jul, Aug, May.
Jul is warmest (23.7°C high); Jul is rainiest (85 mm).
Hamm weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 5.1 | -0.6 | 64 | 1.1 |
| Feb | 6 | -0.9 | 52 | 2.2 |
| Mar | 9.6 | 1.4 | 54 | 3.6 |
| Apr | 13.7 | 3.7 | 44 | 5.9 |
| May | 18.9 | 7.8 | 66 | 7.8 |
| Jun | 21.6 | 10.8 | 70 | 7.9 |
| Jul | 23.7 | 12.8 | 85 | 7.8 |
| Aug | 23 | 12 | 84 | 6.8 |
| Sep | 19 | 9.1 | 61 | 4.6 |
| Oct | 14.2 | 5.8 | 56 | 2.7 |
| Nov | 9 | 2.9 | 69 | 1.3 |
| Dec | 6 | 0.8 | 72 | 0.8 |
Average high temperature
Best months by activity
Overall: JunJulAugMay
Beaches: JunJulAugApr
Hiking: AprMayJunSep
Sightseeing: JunMaySepJul
Hamm quick facts
What to pack
Cold months (Jan, Feb, Mar, Nov, Dec): warm layers and a coat.
Frequently asked questions
When is the best time to visit Hamm?
Jun, Jul, Aug, May.
What is the rainiest month?
Jul, about 85 mm.
What is the warmest month?
Jul, with average highs of 23.7°C.
Where to stay
See Hamm hotels · Book Hamm tours & activities
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Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.