Dortmund, North Rhine-Westphalia Weather by Month and Climate Averages

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.

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. The sun is out about 21% of daylight hours. 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. The sun is out about 24% of daylight hours. 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. The sun is out about 37% of daylight hours. 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. The sun is out about 37% of daylight hours. 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. The sun is out about 36% of daylight hours. 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. The sun is out about 39% of daylight hours. 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. The sun is out about 33% of daylight hours. 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. The sun is out about 38% of daylight hours. 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. The sun is out about 38% of daylight hours. 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. The sun is out about 24% of daylight hours. 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. The sun is out about 25% of daylight hours. 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. The sun is out about 17% of daylight hours. 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 sunshine about 39% of daylight hours. December is the cloudiest, at 17%. Over the year the sun shines about 31% of daylight hours. 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 71% 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

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 on record brought 73 mm of rain, 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.

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?

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 sunshine about 39% of daylight hours. 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.