Dortmund, Germany Climate & Monthly Averages
Dortmund has an oceanic climate. August is the hottest month, averaging 75° by day; January is the coldest at 42°.
How weather changes through the year in Dortmund
Expect mild temperatures year-round with regular rainfall in Dortmund: that is what an oceanic climate means in practice. Highs peak at 75°F (24°C) in August and fall to 42°F (5°C) by January, with 7.7 hours of sun on an average day.
Dortmund climate quick facts
- Hottest month: August - highs near 75°F (24°C)
- Coldest month: January - highs near 42°F (5°C)
- Decade extremes (2015-2024): 101°F (38°C) high · -1°F (-18°C) low
- Wettest month: January (18 rainy days) · Sunniest: July (11.4 h sun/day)
- Climate type: oceanic
- Annual swing: 16°C between the average warmest and coolest month · day to night: 7°C
- Snow: about 9 days a year
- Average humidity: 77%
Temperatures, rain and sunshine
January is the wettest month at 3.7 inches (94 mm) over 18 days; April is the driest. August is the warm end of the year, averaging 75°F (24°C) by day and 59°F (15°C) overnight. January is the coolest month, with highs of 42°F (5°C) and lows near 34°F (1°C). Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 101°F (38°C) and the lowest daily minimum -1°F (-18°C).
July is the brightest month at 11.4 hours of sun a day, against an annual average of 7.7 - duller than about 89% of the cities we track.
Days and nights are about 7°C apart on average - narrower than about 76% of the cities we track.
Where Dortmund sits among other climates
- 29% of the year's precipitation falls in its wettest three months - more evenly spread than all but 9% of the 3496 cities we track.
These comparisons use the same ten-year window for every city in the dataset.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 42° | 34° | 18 | 3.7 in | 3.4 h/day | 8.3 h | 57% | 85% |
| February | 46° | 35° | 13 | 3.4 in | 5.2 h/day | 9.9 h | 47% | 80% |
| March | 51° | 37° | 14 | 2.9 in | 7.1 h/day | 11.7 h | 45% | 76% |
| April | 57° | 41° | 12 | 2.4 in | 9.6 h/day | 13.8 h | 41% | 72% |
| May | 65° | 48° | 13 | 2.6 in | 11.0 h/day | 15.6 h | 42% | 71% |
| June | 72° | 56° | 12 | 3.0 in | 11.3 h/day | 16.6 h | 39% | 70% |
| July | 74° | 58° | 13 | 3.1 in | 11.4 h/day | 16.2 h | 43% | 69% |
| August | 75° | 59° | 14 | 3.4 in | 10.7 h/day | 14.6 h | 44% | 71% |
| September | 68° | 53° | 12 | 2.8 in | 9.0 h/day | 12.6 h | 38% | 75% |
| October | 59° | 48° | 13 | 2.8 in | 5.9 h/day | 10.5 h | 42% | 81% |
| November | 49° | 40° | 14 | 3.0 in | 4.4 h/day | 8.8 h | 47% | 85% |
| December | 45° | 37° | 16 | 3.5 in | 2.9 h/day | 7.8 h | 53% | 86% |
Dortmund month by month
Each card shows the average high and low. The bar places that month between Dortmund's coldest night and warmest afternoon.
January
- Rain
- 18 days
- Sunshine
- 3.4 h
- Daylight
- 8.3 h
- Snow
- 3 days
February
- Rain
- 13 days
- Sunshine
- 5.2 h
- Daylight
- 9.9 h
- Snow
- 2 days
March
- Rain
- 14 days
- Sunshine
- 7.1 h
- Daylight
- 11.7 h
April
- Rain
- 12 days
- Sunshine
- 9.6 h
- Daylight
- 13.8 h
May
- Rain
- 13 days
- Sunshine
- 11.0 h
- Daylight
- 15.6 h
June
- Rain
- 12 days
- Sunshine
- 11.3 h
- Daylight
- 16.6 h
July
- Rain
- 13 days
- Sunshine
- 11.4 h
- Daylight
- 16.2 h
August
- Rain
- 14 days
- Sunshine
- 10.7 h
- Daylight
- 14.6 h
September
- Rain
- 12 days
- Sunshine
- 9.0 h
- Daylight
- 12.6 h
October
- Rain
- 13 days
- Sunshine
- 5.9 h
- Daylight
- 10.5 h
November
- Rain
- 14 days
- Sunshine
- 4.4 h
- Daylight
- 8.8 h
December
- Rain
- 16 days
- Sunshine
- 2.9 h
- Daylight
- 7.8 h
- Snow
- 2 days
Looking for warmer alternatives? Browse warm places by month, or compare Dortmund's coolest part of the year: January, December, February.
A season-by-season guide to Dortmund
Spring (March through May)
Spring in Dortmund runs cool rather than cold, with daytime highs averaging 58°F (14°C) and nights around 42°F (6°C); rain falls on around 40 of the 90 days.
Summer (June through August)
Summer settles into easy warmth here - highs near 74°F (23°C), nights near 58°F (14°C), and rain falls on around 38 of the 90 days. Daylight is generous - around 11.1 hours of sun a day.
Fall (September through November)
Through fall, Dortmund runs cool rather than cold: 59°F (15°C) by day, 47°F (8°C) after dark, and rain falls on around 38 of the 90 days.
Winter (December through February)
Winter in Dortmund runs cold, with daytime highs averaging 44°F (7°C) and nights around 35°F (2°C); rain falls on around 47 of the 90 days, plus about 7 snowy days.
Questions people ask about Dortmund's climate
How cold does Dortmund get in winter?
How sunny is Dortmund?
How warm is Dortmund on average?
How hot does Dortmund get in summer?
The most useful weather window for Dortmund
Best time to visit Dortmund
May to October is the sweet spot for Dortmund - warm days, manageable rainfall and plenty of daylight line up. Expect 69°F (21°C) in the afternoon and around 13 days of rain in a typical month of it. For the same question asked the other way round, see where else is warm in May.
What to pack
Pack for Dortmund with a warm jacket and layers for the cooler season and proper waterproofs rather than an umbrella - wet days are the norm here. August nights average 59°F (15°C), so evenings rarely match the afternoons.
Dortmund temperature extremes in the 2015–2024 dataset
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need another precipitation unit? Use the rainfall converter.