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Bielefeld, 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 Bielefeld, North Rhine-Westphalia?
Bielefeld, North Rhine-Westphalia gets 867 mm of precipitation a year over about 182 rainy days. July is the warmest month (average high 24°C) and January the coldest (average low 0°C).
Oceanic climate
Bielefeld, North Rhine-Westphalia has warm summers and chilly winters. Daytime highs range from about 5°C in January to 24°C in July. January is usually the wettest month. The most comfortable time to visit is typically May to September, when daytime highs sit near 22°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 1° | 6° |
| Spring | Mar–May | 4° | 14° |
| Summer | Jun–Aug | 12° | 23° |
| Autumn | Sep–Nov | 7° | 14° |
How much rain does Bielefeld get?
Bielefeld gets 867 mm of precipitation in an average year, spread over about 182 days with measurable rain. That is more rainy days than 86% of Germany.
January is the wettest month, with 102 mm. April is the driest, with 35 mm. December has the most rainy days, about 20.
The longest dry spell in the last five years lasted 23 days, to March 23, 2025.
From October 2025 to September 2026 Bielefeld got 703 mm of rain, against a normal of 867 mm for those months. May 2026 had the most, with 140 mm.
Bielefeld weather by month
Bielefeld weather in January
In January, Bielefeld averages a high of 5°C and a low of 0°C. It gets 102 mm of precipitation over about 19 rainy days. Estimated sunshine is 19% of daylight hours, derived from ERA5 cloud cover. The January record high is 17°C (2023) and the record low is -20°C (2009).
Bielefeld weather in February
In February, Bielefeld averages a high of 6°C and a low of 0°C. It gets 69 mm of precipitation over about 16 rainy days. Estimated sunshine is 23% of daylight hours, derived from ERA5 cloud cover. The February record high is 19°C (2021) and the record low is -21°C (2021).
Bielefeld weather in March
In March, Bielefeld averages a high of 10°C and a low of 1°C. It gets 63 mm of precipitation over about 14 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The March record high is 24°C (2021) and the record low is -14°C (2010).
Bielefeld weather in April
In April, Bielefeld averages a high of 16°C and a low of 3°C. It gets 35 mm of precipitation over about 11 rainy days. Estimated sunshine is 36% of daylight hours, derived from ERA5 cloud cover. The April record high is 27°C (2007) and the record low is -6°C (2013).
Bielefeld weather in May
In May, Bielefeld averages a high of 19°C and a low of 7°C. It gets 65 mm of precipitation over about 14 rainy days. Estimated sunshine is 35% of daylight hours, derived from ERA5 cloud cover. The May record high is 31°C (2026) and the record low is -2°C (2011). May is one of the most comfortable months to visit.
Bielefeld weather in June
In June, Bielefeld averages a high of 22°C and a low of 10°C. It gets 72 mm of precipitation over about 14 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The June record high is 37°C (2026) and the record low is 1°C (2009). June is one of the most comfortable months to visit.
Bielefeld weather in July
In July, Bielefeld averages a high of 24°C and a low of 12°C. It gets 73 mm of precipitation over about 15 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The July record high is 39°C (2019) and the record low is 4°C (2019). July is one of the most comfortable months to visit.
Bielefeld weather in August
In August, Bielefeld averages a high of 24°C and a low of 12°C. It gets 83 mm of precipitation over about 15 rainy days. Estimated sunshine is 37% of daylight hours, derived from ERA5 cloud cover. The August record high is 37°C (2018) and the record low is 4°C (2025). August is one of the most comfortable months to visit.
Bielefeld weather in September
In September, Bielefeld averages a high of 20°C and a low of 9°C. It gets 60 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 -1°C (2018). September is one of the most comfortable months to visit.
Bielefeld weather in October
In October, Bielefeld averages a high of 14°C and a low of 7°C. It gets 71 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 27°C (2011) and the record low is -4°C (2012).
Bielefeld weather in November
In November, Bielefeld averages a high of 9°C and a low of 3°C. It gets 78 mm of precipitation over about 17 rainy days. Estimated sunshine is 24% of daylight hours, derived from ERA5 cloud cover. The November record high is 20°C (2020) and the record low is -9°C (2008).
Bielefeld weather in December
In December, Bielefeld averages a high of 6°C and a low of 1°C. It gets 97 mm of precipitation over about 20 rainy days. Estimated sunshine is 16% of daylight hours, derived from ERA5 cloud cover. The December record high is 17°C (2022) and the record low is -20°C (2010).
Sunshine, humidity and wind in Bielefeld
September is the sunniest month in Bielefeld, with estimated sunshine of 38% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 16%. The annual cloud-cover estimate is 30% of daylight hours; it is not a measurement of sunshine duration. Bielefeld is cloudier than 88% of Germany.
Humidity peaks in December at 88% and is lowest in June at 64%.
Bielefeld has about 5 days a year above 32°C. Bielefeld is hotter than 63% of Germany.
First and last freeze in Bielefeld
The first fall freeze in Bielefeld typically comes around October 22, and the last spring freeze around May 2. That leaves a frost-free growing season of about 173 days.
Bielefeld weather records
These records cover BIELEFELD-DEPPENDORF during 2006–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Bielefeld station is 39°C, on July 25, 2019. The coldest is -21°C, on February 13, 2021.
The wettest day in the available station history brought 96 mm of precipitation, on August 26, 2010.
The best time to visit Bielefeld
The most comfortable time to visit is typically May to September, when daytime highs sit near 22°C.
Winter (December–February) is chilly, with average highs around 6°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 23°C and lows near 11°C.
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° | 5° | 102 mm | 19 | 86% | 19% | 17° | -20° |
| February | 0° | 6° | 69 mm | 16 | 81% | 23% | 19° | -21° |
| March | 1° | 10° | 63 mm | 14 | 71% | 36% | 24° | -14° |
| April | 3° | 16° | 35 mm | 11 | 66% | 36% | 27° | -6° |
| May | 7° | 19° | 65 mm | 14 | 66% | 35% | 31° | -2° |
| June | 10° | 22° | 72 mm | 14 | 64% | 37% | 37° | 1° |
| July | 12° | 24° | 73 mm | 15 | 68% | 32% | 39° | 4° |
| August | 12° | 24° | 83 mm | 15 | 69% | 37% | 37° | 4° |
| September | 9° | 20° | 60 mm | 13 | 75% | 38% | 33° | -1° |
| October | 7° | 14° | 71 mm | 15 | 83% | 24% | 27° | -4° |
| November | 3° | 9° | 78 mm | 17 | 86% | 24% | 20° | -9° |
| December | 1° | 6° | 97 mm | 20 | 88% | 16% | 17° | -20° |
Station: BIELEFELD-DEPPENDORF, 7 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 2006–2026; 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.
Bielefeld climate questions
How much rain does Bielefeld get?
Bielefeld gets 867 mm of precipitation in an average year, over about 182 rainy days.
What is the wettest month in Bielefeld?
January is the wettest month in Bielefeld, with 102 mm. April is the driest, with 35 mm.
How many rainy days does Bielefeld have a year?
Bielefeld has about 182 days with measurable rain in an average year. December has the most, about 20.
What is the hottest month in Bielefeld?
July is the warmest month in Bielefeld, with an average high of 24°C.
What is the coldest month in Bielefeld?
January is the coldest month in Bielefeld, with an average low of 0°C.
What is the record high temperature in Bielefeld?
Within the available 2006–2026 station history, the record high at the Bielefeld station is 39°C, set on July 25, 2019. The record low is -21°C, on February 13, 2021.
What is the sunniest month in Bielefeld?
September is the sunniest month in Bielefeld, with estimated sunshine of 38% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Bielefeld?
The first fall freeze in Bielefeld typically comes around October 22. The last spring freeze is around May 2.
What is the best time to visit Bielefeld?
The most comfortable time to visit is typically May to September, when daytime highs sit near 22°C.