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Karlsruhe, Baden-Wurttemberg Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Karlsruhe, Baden-Wurttemberg?
Karlsruhe, Baden-Wurttemberg gets 716 mm of precipitation a year over about 155 rainy days. July is the warmest month (average high 27°C) and January the coldest (average low -1°C).
Oceanic climate
Karlsruhe, Baden-Wurttemberg has warm summers and chilly winters. Daytime highs range from about 5°C in January to 27°C in July. May is usually the wettest month. The most comfortable time to visit is typically April, June, and August to September, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Dec–Feb | 0° | 6° |
| Spring | Mar–May | 5° | 17° |
| Summer | Jun–Aug | 14° | 26° |
| Autumn | Sep–Nov | 7° | 16° |
How much rain does Karlsruhe get?
Karlsruhe gets 716 mm of precipitation in an average year, spread over about 155 days with measurable rain. That is fewer rainy days than 84% of Germany.
May is the wettest month, with 80 mm. March is the driest, with 40 mm. December has the most rainy days, about 18.
The longest dry spell in the last five years lasted 23 days, to June 7, 2023.
From October 2025 to September 2026 Karlsruhe got 578 mm of rain, against a normal of 716 mm for those months. October 2025 had the most, with 107 mm.
Karlsruhe weather by month
Karlsruhe weather in January
In January, Karlsruhe averages a high of 5°C and a low of -1°C. It gets 60 mm of precipitation over about 16 rainy days. Estimated sunshine is 26% of daylight hours, derived from ERA5 cloud cover. The January record high is 18°C (2025) and the record low is -22°C (1985).
Karlsruhe weather in February
In February, Karlsruhe averages a high of 7°C and a low of -1°C. It gets 48 mm of precipitation over about 13 rainy days. Estimated sunshine is 32% of daylight hours, derived from ERA5 cloud cover. The February record high is 22°C (2026) and the record low is -16°C (2012).
Karlsruhe weather in March
In March, Karlsruhe averages a high of 12°C and a low of 2°C. It gets 40 mm of precipitation over about 11 rainy days. Estimated sunshine is 40% of daylight hours, derived from ERA5 cloud cover. The March record high is 26°C (2021) and the record low is -12°C (1970).
Karlsruhe weather in April
In April, Karlsruhe averages a high of 18°C and a low of 5°C. It gets 40 mm of precipitation over about 10 rainy days. Estimated sunshine is 43% of daylight hours, derived from ERA5 cloud cover. The April record high is 31°C (2012) and the record low is -4°C (2020). April is one of the most comfortable months to visit.
Karlsruhe weather in May
In May, Karlsruhe averages a high of 21°C and a low of 9°C. It gets 80 mm of precipitation over about 14 rainy days. Estimated sunshine is 39% of daylight hours, derived from ERA5 cloud cover. The May record high is 33°C (2009) and the record low is -1°C (1985).
Karlsruhe weather in June
In June, Karlsruhe averages a high of 24°C and a low of 13°C. It gets 64 mm of precipitation over about 12 rainy days. Estimated sunshine is 43% of daylight hours, derived from ERA5 cloud cover. The June record high is 41°C (2026) and the record low is 2°C (1975). June is one of the most comfortable months to visit.
Karlsruhe weather in July
In July, Karlsruhe averages a high of 27°C and a low of 14°C. It gets 76 mm of precipitation over about 13 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The July record high is 39°C (2019) and the record low is 6°C (1977).
Karlsruhe weather in August
In August, Karlsruhe averages a high of 27°C and a low of 14°C. It gets 61 mm of precipitation over about 12 rainy days. Estimated sunshine is 43% of daylight hours, derived from ERA5 cloud cover. The August record high is 39°C (2015) and the record low is 5°C (1980). August is one of the most comfortable months to visit.
Karlsruhe weather in September
In September, Karlsruhe averages a high of 22°C and a low of 11°C. It gets 47 mm of precipitation over about 9 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The September record high is 33°C (2016) and the record low is 0°C (1971). September is one of the most comfortable months to visit.
Karlsruhe weather in October
In October, Karlsruhe averages a high of 16°C and a low of 7°C. It gets 58 mm of precipitation over about 13 rainy days. Estimated sunshine is 28% of daylight hours, derived from ERA5 cloud cover. The October record high is 29°C (1977) and the record low is -6°C (1972).
Karlsruhe weather in November
In November, Karlsruhe averages a high of 10°C and a low of 3°C. It gets 64 mm of precipitation over about 14 rainy days. Estimated sunshine is 29% of daylight hours, derived from ERA5 cloud cover. The November record high is 22°C (2020) and the record low is -9°C (1983).
Karlsruhe weather in December
In December, Karlsruhe averages a high of 7°C and a low of 1°C. It gets 79 mm of precipitation over about 18 rainy days. Estimated sunshine is 21% of daylight hours, derived from ERA5 cloud cover. The December record high is 19°C (2022) and the record low is -19°C (2010).
Sunshine, humidity and wind in Karlsruhe
July is the sunniest month in Karlsruhe, with estimated sunshine of 46% of daylight hours from ERA5 cloud cover. December is the cloudiest, at 21%. The annual cloud-cover estimate is 36% of daylight hours; it is not a measurement of sunshine duration. Karlsruhe is sunnier than 98% of Germany.
Humidity peaks in December at 86% and is lowest in July at 59%.
Karlsruhe has about 11 days a year above 32°C. Karlsruhe is hotter than 99% of Germany.
First and last freeze in Karlsruhe
The first fall freeze in Karlsruhe typically comes around October 31, and the last spring freeze around April 22. That leaves a frost-free growing season of about 192 days.
Karlsruhe weather records
These records cover RHEINSTETTEN during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Karlsruhe station is 41°C, on June 27, 2026. The coldest is -22°C, on January 8, 1985.
The wettest day in the available station history brought 98 mm of precipitation, on May 22, 1978.
47 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.4°C per decade since 1970.
The best time to visit Karlsruhe
The most comfortable time to visit is typically April, June, and August to September, when daytime highs sit near 23°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 17°C and lows near 5°C.
Summer (June–August) is warm, with average highs around 26°C and lows near 14°C.
Autumn (September–November) is mild, with average highs around 16°C and lows near 7°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | -1° | 5° | 60 mm | 16 | 82% | 26% | 18° | -22° |
| February | -1° | 7° | 48 mm | 13 | 76% | 32% | 22° | -16° |
| March | 2° | 12° | 40 mm | 11 | 66% | 40% | 26° | -12° |
| April | 5° | 18° | 40 mm | 10 | 62% | 43% | 31° | -4° |
| May | 9° | 21° | 80 mm | 14 | 65% | 39% | 33° | -1° |
| June | 13° | 24° | 64 mm | 12 | 62% | 43% | 41° | 2° |
| July | 14° | 27° | 76 mm | 13 | 59% | 46% | 39° | 6° |
| August | 14° | 27° | 61 mm | 12 | 62% | 43% | 39° | 5° |
| September | 11° | 22° | 47 mm | 9 | 70% | 45% | 33° | 0° |
| October | 7° | 16° | 58 mm | 13 | 79% | 28% | 29° | -6° |
| November | 3° | 10° | 64 mm | 14 | 84% | 29% | 22° | -9° |
| December | 1° | 7° | 79 mm | 18 | 86% | 21% | 19° | -19° |
Station: RHEINSTETTEN, 7 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; 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.
Karlsruhe climate questions
How much rain does Karlsruhe get?
Karlsruhe gets 716 mm of precipitation in an average year, over about 155 rainy days.
What is the wettest month in Karlsruhe?
May is the wettest month in Karlsruhe, with 80 mm. March is the driest, with 40 mm.
How many rainy days does Karlsruhe have a year?
Karlsruhe has about 155 days with measurable rain in an average year. December has the most, about 18.
What is the hottest month in Karlsruhe?
July is the warmest month in Karlsruhe, with an average high of 27°C.
What is the coldest month in Karlsruhe?
January is the coldest month in Karlsruhe, with an average low of -1°C.
What is the record high temperature in Karlsruhe?
Within the available 1970–2026 station history, the record high at the Karlsruhe station is 41°C, set on June 27, 2026. The record low is -22°C, on January 8, 1985.
What is the sunniest month in Karlsruhe?
July is the sunniest month in Karlsruhe, with estimated sunshine of 46% of daylight hours from ERA5 cloud cover. December is the cloudiest.
When is the first frost in Karlsruhe?
The first fall freeze in Karlsruhe typically comes around October 31. The last spring freeze is around April 22.
What is the best time to visit Karlsruhe?
The most comfortable time to visit is typically April, June, and August to September, when daytime highs sit near 23°C.