Groningen, Groningen Weather by Month and Climate Averages

How much rain does Groningen get?

Groningen gets 840 mm of precipitation in an average year, spread over about 190 days with measurable rain. That is more rainy days than 95% of Germany.

August is the wettest month, with 116 mm. April is the driest, with 36 mm. December has the most rainy days, about 20.

The longest dry spell in the last five years lasted 27 days, to May 21, 2025.

Groningen weather by month

Groningen weather in January

In January, Groningen averages a high of 6°C and a low of 2°C. It gets 73 mm of precipitation over about 20 rainy days. The sun is out about 24% of daylight hours. The January record high is 13°C (2023) and the record low is -11°C (2010).

Groningen weather in February

In February, Groningen averages a high of 6°C and a low of 1°C. It gets 50 mm of precipitation over about 16 rainy days. The sun is out about 24% of daylight hours. The February record high is 17°C (2019) and the record low is -14°C (2012).

Groningen weather in March

In March, Groningen averages a high of 8°C and a low of 3°C. It gets 51 mm of precipitation over about 15 rainy days. The sun is out about 36% of daylight hours. The March record high is 22°C (2017) and the record low is -8°C (2018).

Groningen weather in April

In April, Groningen averages a high of 13°C and a low of 6°C. It gets 36 mm of precipitation over about 11 rainy days. The sun is out about 40% of daylight hours. The April record high is 26°C (2007) and the record low is -3°C (2008).

Groningen weather in May

In May, Groningen averages a high of 16°C and a low of 9°C. It gets 49 mm of precipitation over about 12 rainy days. The sun is out about 37% of daylight hours. The May record high is 28°C (2017) and the record low is -1°C (2011).

Groningen weather in June

In June, Groningen averages a high of 19°C and a low of 12°C. It gets 60 mm of precipitation over about 13 rainy days. The sun is out about 40% of daylight hours. The June record high is 34°C (2026) and the record low is 3°C (2009). June is one of the most comfortable months to visit.

Groningen weather in July

In July, Groningen averages a high of 22°C and a low of 14°C. It gets 88 mm of precipitation over about 15 rainy days. The sun is out about 33% of daylight hours. The July record high is 34°C (2018) and the record low is 7°C (2008). July is one of the most comfortable months to visit.

Groningen weather in August

In August, Groningen averages a high of 21°C and a low of 14°C. It gets 116 mm of precipitation over about 17 rainy days. The sun is out about 40% of daylight hours. The August record high is 34°C (2013) and the record low is 8°C (2025).

Groningen weather in September

In September, Groningen averages a high of 18°C and a low of 12°C. It gets 74 mm of precipitation over about 15 rainy days. The sun is out about 36% of daylight hours. The September record high is 29°C (2023) and the record low is 3°C (2022). September is one of the most comfortable months to visit.

Groningen weather in October

In October, Groningen averages a high of 14°C and a low of 9°C. It gets 87 mm of precipitation over about 18 rainy days. The sun is out about 25% of daylight hours. The October record high is 24°C (2018) and the record low is -1°C (2010).

Groningen weather in November

In November, Groningen averages a high of 9°C and a low of 5°C. It gets 75 mm of precipitation over about 19 rainy days. The sun is out about 22% of daylight hours. The November record high is 18°C (2014) and the record low is -5°C (2016).

Groningen weather in December

In December, Groningen averages a high of 7°C and a low of 3°C. It gets 80 mm of precipitation over about 20 rainy days. The sun is out about 17% of daylight hours. The December record high is 13°C (2006) and the record low is -8°C (2010).

Sunshine, humidity and wind in Groningen

April is the sunniest month in Groningen, with sunshine about 40% of daylight hours. December is the cloudiest, at 17%. Over the year the sun shines about 31% of daylight hours. Groningen is cloudier than 63% of Germany.

Humidity peaks in December at 90% and is lowest in April at 72%.

Groningen has about 1 days a year above 32°C. Groningen is cooler than 99% of Germany.

First and last freeze in Groningen

The first fall freeze in Groningen typically comes around November 20, and the last spring freeze around April 7. That leaves a frost-free growing season of about 227 days.

Groningen weather records

The hottest temperature on record at the Groningen station is 34°C, on July 26, 2018. The coldest is -14°C, on February 7, 2012.

The wettest day on record brought 57 mm of rain, on July 29, 2016.

The best time to visit Groningen

The most comfortable time to visit is typically June to July and September, when daytime highs sit near 20°C.

Winter (December–February) is chilly, with average highs around 6°C and lows near 2°C.

Spring (March–May) is chilly, with average highs around 12°C and lows near 6°C.

Summer (June–August) is warm, with average highs around 21°C and lows near 13°C. It can feel humid.

Autumn (September–November) is mild, with average highs around 14°C and lows near 9°C.

Groningen climate questions

How much rain does Groningen get?

Groningen gets 840 mm of precipitation in an average year, over about 190 rainy days.

What is the wettest month in Groningen?

August is the wettest month in Groningen, with 116 mm. April is the driest, with 36 mm.

How many rainy days does Groningen have a year?

Groningen has about 190 days with measurable rain in an average year. December has the most, about 20.

What is the hottest month in Groningen?

July is the warmest month in Groningen, with an average high of 22°C.

What is the coldest month in Groningen?

February is the coldest month in Groningen, with an average low of 1°C.

What is the record high temperature in Groningen?

The record high at the Groningen station is 34°C, set on July 26, 2018. The record low is -14°C, on February 7, 2012.

What is the sunniest month in Groningen?

April is the sunniest month in Groningen, with sunshine about 40% of daylight hours. December is the cloudiest.

When is the first frost in Groningen?

The first fall freeze in Groningen typically comes around November 20. The last spring freeze is around April 7.

What is the best time to visit Groningen?

The most comfortable time to visit is typically June to July and September, when daytime highs sit near 20°C.