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Dortmund, North Rhine-Westphalia Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Dortmund, North Rhine-Westphalia?
Dortmund, North Rhine-Westphalia gets 727 mm of precipitation a year over about 176 rainy days. July is the warmest month (average high 24°C) and January the coldest (average low 0°C).
Oceanic climate
Dortmund, North Rhine-Westphalia has warm summers and chilly winters. Daytime highs range from about 6°C in January to 24°C in July. August is usually the wettest month. The most comfortable time to visit is typically May to July and September, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 1° | 7° |
| Spring | Mar–May | 4° | 16° |
| Summer | Jun–Aug | 12° | 24° |
| Autumn | Sep–Nov | 7° | 15° |
How much rain does Dortmund get?
Dortmund gets 727 mm of precipitation in an average year, spread over about 176 days with measurable rain. That is more rainy days than 72% of Germany.
August is the wettest month, with 76 mm. April is the driest, with 33 mm. December has the most rainy days, about 20.
The longest dry spell in the last five years lasted 18 days, to May 22, 2025.
From October 2025 to September 2026 Dortmund got 585 mm of rain, against a normal of 727 mm for those months. May 2026 had the most, with 106 mm.
Dortmund weather by month
Dortmund weather in January
In January, Dortmund averages a high of 6°C and a low of 0°C. It gets 68 mm of precipitation over about 17 rainy days. Estimated sunshine is 21% of daylight hours, derived from ERA5 cloud cover. The January record high is 17°C (2023) and the record low is -24°C (2009).
Dortmund weather in February
In February, Dortmund averages a high of 7°C and a low of 0°C. It gets 56 mm of precipitation over about 15 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The February record high is 21°C (2019) and the record low is -19°C (2021).
Dortmund weather in March
In March, Dortmund averages a high of 11°C and a low of 1°C. It gets 49 mm of precipitation over about 14 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The March record high is 26°C (2021) and the record low is -12°C (2013).
Dortmund weather in April
In April, Dortmund averages a high of 16°C and a low of 3°C. It gets 33 mm of precipitation over about 11 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The April record high is 29°C (2018) and the record low is -7°C (2013).
Dortmund weather in May
In May, Dortmund averages a high of 19°C and a low of 7°C. It gets 47 mm of precipitation over about 12 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The May record high is 33°C (2017) and the record low is -2°C (2011). May is one of the most comfortable months to visit.
Dortmund weather in June
In June, Dortmund averages a high of 22°C and a low of 11°C. It gets 61 mm of precipitation over about 14 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The June record high is 38°C (2026) and the record low is 3°C (2009). June is one of the most comfortable months to visit.
Dortmund weather in July
In July, Dortmund averages a high of 24°C and a low of 13°C. It gets 75 mm of precipitation over about 14 rainy days. Estimated sunshine is 33% of daylight hours, derived from ERA5 cloud cover. The July record high is 41°C (2019) and the record low is 6°C (2015). July is one of the most comfortable months to visit.
Dortmund weather in August
In August, Dortmund averages a high of 24°C and a low of 12°C. It gets 76 mm of precipitation over about 15 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The August record high is 37°C (2018) and the record low is 4°C (2025).
Dortmund weather in September
In September, Dortmund averages a high of 20°C and a low of 9°C. It gets 61 mm of precipitation over about 13 rainy days. Estimated sunshine is 38% of daylight hours, derived from ERA5 cloud cover. The September record high is 33°C (2016) and the record low is 0°C (2018). September is one of the most comfortable months to visit.
Dortmund weather in October
In October, Dortmund averages a high of 16°C and a low of 7°C. It gets 63 mm of precipitation over about 15 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The October record high is 28°C (2018) and the record low is -6°C (2012).
Dortmund weather in November
In November, Dortmund averages a high of 11°C and a low of 3°C. It gets 67 mm of precipitation over about 16 rainy days. Estimated sunshine is 25% of daylight hours, derived from ERA5 cloud cover. The November record high is 22°C (2014) and the record low is -9°C (2008).
Dortmund weather in December
In December, Dortmund averages a high of 7°C and a low of 1°C. It gets 72 mm of precipitation over about 20 rainy days. Estimated sunshine is 17% of daylight hours, derived from ERA5 cloud cover. The December record high is 18°C (2022) and the record low is -20°C (2010).
Sunshine, humidity and wind in Dortmund
June is the sunniest month in Dortmund, with estimated sunshine of 39% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 17%. The annual cloud-cover estimate is 31% of daylight hours; it is not a measurement of sunshine duration. Dortmund is cloudier than 70% of Germany.
Humidity peaks in December at 88% and is lowest in June at 66%.
Dortmund has about 5 days a year above 32°C. Dortmund is hotter than 70% of Germany.
First and last freeze in Dortmund
The first fall freeze in Dortmund typically comes around November 2, and the last spring freeze around May 1. That leaves a frost-free growing season of about 185 days.
Dortmund weather records
These records cover WALTROP-ABDINGHOF during 2007–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Dortmund station is 41°C, on July 25, 2019. The coldest is -24°C, on January 7, 2009.
The wettest day in the available station history brought 73 mm of precipitation, on June 22, 2023.
The best time to visit Dortmund
The most comfortable time to visit is typically May to July and September, when daytime highs sit near 22°C.
Winter (December–February) is chilly, with average highs around 7°C and lows near 0°C.
Spring (March–May) is mild, with average highs around 15°C and lows near 4°C.
Summer (June–August) is warm, with average highs around 24°C and lows near 12°C. It can feel humid.
Autumn (September–November) is mild, with average highs around 15°C and lows near 6°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 0° | 6° | 68 mm | 17 | 86% | 21% | 17° | -24° |
| February | 0° | 7° | 56 mm | 15 | 80% | 24% | 21° | -19° |
| March | 1° | 11° | 49 mm | 14 | 71% | 37% | 26° | -12° |
| April | 3° | 16° | 33 mm | 11 | 67% | 37% | 29° | -7° |
| May | 7° | 19° | 47 mm | 12 | 68% | 36% | 33° | -2° |
| June | 11° | 22° | 61 mm | 14 | 66% | 39% | 38° | 3° |
| July | 13° | 24° | 75 mm | 14 | 70% | 33% | 41° | 6° |
| August | 12° | 24° | 76 mm | 15 | 72% | 38% | 37° | 4° |
| September | 9° | 20° | 61 mm | 13 | 76% | 38% | 33° | 0° |
| October | 7° | 16° | 63 mm | 15 | 83% | 24% | 28° | -6° |
| November | 3° | 11° | 67 mm | 16 | 86% | 25% | 22° | -9° |
| December | 1° | 7° | 72 mm | 20 | 88% | 17% | 18° | -20° |
Station: WALTROP-ABDINGHOF, 10 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 2007–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Dortmund climate questions
How much rain does Dortmund get?
Dortmund gets 727 mm of precipitation in an average year, over about 176 rainy days.
What is the wettest month in Dortmund?
August is the wettest month in Dortmund, with 76 mm. April is the driest, with 33 mm.
How many rainy days does Dortmund have a year?
Dortmund has about 176 days with measurable rain in an average year. December has the most, about 20.
What is the hottest month in Dortmund?
July is the warmest month in Dortmund, with an average high of 24°C.
What is the coldest month in Dortmund?
January is the coldest month in Dortmund, with an average low of 0°C.
What is the record high temperature in Dortmund?
Within the available 2007–2026 station history, the record high at the Dortmund station is 41°C, set on July 25, 2019. The record low is -24°C, on January 7, 2009.
What is the sunniest month in Dortmund?
June is the sunniest month in Dortmund, with estimated sunshine of 39% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Dortmund?
The first fall freeze in Dortmund typically comes around November 2. The last spring freeze is around May 1.
What is the best time to visit Dortmund?
The most comfortable time to visit is typically May to July and September, when daytime highs sit near 22°C.