Bremen has a temperate maritime climate with mild summers, cool winters, and consistent rainfall throughout the year. Summer highs reach 22–24°C, while winter lows often hover around 0°C. Rain is frequent, especially in summer and autumn, and sunshine is most abundant from May to August. The city’s North Sea influence brings changeable weather and moderate winds.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Bremen’s climate is shaped by its proximity to the North Sea, resulting in moderate temperatures, regular rainfall, and relatively mild winters. Summers (June–August) are mild to warm, with average highs of 22–24°C and lows around 12–13°C. July and August are the warmest months, occasionally reaching 25°C or higher. Rainfall peaks in summer, especially in July and August, with 70–80 mm per month and frequent brief showers. Sunshine is most plentiful from May to August, with up to 8 hours per day, and daylight stretches late into the evening.
Winters (December–February) are cool and damp, with average highs of 4–6°C and lows near or just below freezing. Snowfall is relatively light and infrequent, averaging 20–25 days per year, mostly between December and February, but it rarely accumulates for long. Rain falls consistently year-round, with annual totals around 700–800 mm, and the wettest months are July and August. Spring (March–May) and autumn (September–November) are transitional, bringing variable weather, moderate rainfall, and temperatures ranging from 8°C in March to 18°C in May, and cooling from 19°C in September to 6°C in November. Bremen enjoys 1,500–1,600 hours of sunshine annually, and winds are moderate to strong, especially in autumn and winter, averaging 20–30 km/h.
| Average climate data for Bremen, Germany | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 3 | 5 | 9 | 14 | 17 | 20 | 22 | 23 | 19 | 14 | 8 | 5 | 23 |
| Average minimum temperature (°C) | -0 | -0 | 2 | 5 | 7 | 11 | 13 | 14 | 11 | 7 | 4 | 1 | -0 |
| Average precipitation (mm) | 27 | 25 | 24 | 17 | 26 | 43 | 39 | 36 | 21 | 29 | 27 | 27 | 342 |
| Average rainfall days (days) | 12 | 10 | 12 | 12 | 16 | 16 | 18 | 16 | 14 | 14 | 12 | 14 | 166 |
| Average snowfall (mm) | 22 | 19 | 12 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 18 | 75 |
| Average snowfall days (days) | 5 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 4 | 17 |
| Average relative humidity (%) | 89 | 85 | 82 | 78 | 78 | 82 | 78 | 76 | 81 | 84 | 89 | 90 | 83 |
| Average wind speed (km/h) | 18 | 18 | 16 | 14 | 14 | 13 | 13 | 12 | 13 | 15 | 15 | 19 | 15 |
| Average daily daylight hours (h) | 8 | 9 | 11 | 14 | 15 | 16 | 16 | 14 | 12 | 10 | 8 | 7 | 12 |
| Average daily sunshine hours (h) | 3 | 3 | 5 | 8 | 8 | 8 | 8 | 9 | 7 | 4 | 4 | 3 | 6 |
| Average cloud coverage (%) | 66 | 64 | 56 | 42 | 47 | 48 | 46 | 39 | 46 | 54 | 59 | 68 | 53 |
| Average UV index | 2 | 2 | 3 | 3 | 4 | 5 | 5 | 5 | 4 | 3 | 2 | 1 | 3 |
The best time to visit Bremen is from May to September, when temperatures are mild to warm (18–24°C), days are long, and the city’s parks and riverside areas are at their best. These months offer the most sunshine and comfortable weather for outdoor sightseeing, festivals, and exploring the historic Old Town, though rain showers are still possible.
The least favourable time to visit is from November to February. These months are the coldest and wettest, with highs of 4–6°C, frequent rain, short daylight hours, and occasional light snow. While the city is quieter and festive markets bring charm, outdoor sightseeing is less appealing due to damp, chilly weather.
Bremen has mild summers (22–24°C), cool winters (4–6°C), and moderate rainfall throughout the year. Snow is possible in winter but usually light. The weather is changeable, so pack layers and a rain jacket.
Snow is relatively rare in Bremen, with about 20–25 days per year, mainly from December to February. Accumulation is usually light and melts quickly, with rain being more common in winter.
May to August are the sunniest months, with up to 8 hours of sunshine per day and long daylight hours. These months are ideal for outdoor activities and sightseeing.
Bremen receives about 700–800 mm of rain annually, with rain possible in any month. July and August are the wettest months, while February and April are usually the driest.
Pack layers, a rain jacket or umbrella, and comfortable waterproof shoes. Even in summer, evenings can be cool, and rain is frequent. A warm coat is recommended for winter visits.
Bremen is moderately to strongly windy year-round, especially in autumn and winter. Winds from the North Sea can make temperatures feel colder, so dress accordingly.
Bremen is least crowded in winter (November–February) and early spring. These periods offer quieter streets and attractions, but weather may be colder and less suitable for outdoor sightseeing.
The warmest month, with the highest average maximum temperature, is August (22.8 °C). The month with the lowest average maximum temperature is January (3.2 °C). Overall, the average maximum temperature over the whole year is 13.3 °C.
The month with the highest average minimum temperature is August (13.7 °C). The coldest month, with the lowest average minimum temperature, is January (-0.5 °C). Overall, the average minimum temperature over the whole year is 6.1 °C.
The wettest month, with the highest amount of precipitation, is June (43 mm). The driest month, with the least amount of precipitation, is April (17 mm). Over the whole year there are 342.2 mm of rainfall on average.
The month with the most days of rain is July (18 days). The month with the fewest days of rain is February (9.6 days). Over the whole year there are 166 days of rain on average.
The month with the most snowfall is January (22.2 mm). The months with the least snowfall are May, June, July, August, September and October (0 mm). Over the whole year there are 75.3 mm of snowfall on average.
The month with the most days of snowfall is January (5.4 days). The months with the fewest days of snowfall are July and October (0 days). Over the whole year there are 17.3 days of snowfall on average.
The month with the highest average relative humidity is December (89.5 %). The month with the lowest average relative humidity is August (75.9 %). The overall average relative humidity over the whole year is 82.5 %.
The windiest month, with the highest average wind speed, is December (18.5 km/h). The calmest month, with the lowest average wind speed, is August (12.3 km/h). The overall average wind speed over the whole year is 14.9 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is December (68.3 %). The month with the clearest skies, so the lowest cloud coverage, is August (39 %). Over the whole year there is an average cloud coverage of 52.8 %.
The month with the longest days, so the most daylight, is June (Average daylight: 16.1 h). The month with the shortest days, so the least daylight, is December (Average daylight: 7.1 h). Over the whole year there are 11.7 h of daylight per day on average.
The month with the most sunshine per day is August (Average sunshine: 9 h). The month with the least sunshine per day is December (Average sunshine: 3.1 h). Over the whole year there are 5.9 h of sunlight per day on average.
The months with the highest average UV index are June, July and August (UV index: 5). The month with the lowest average UV index is December (UV index: 1). Over the whole year the average UV index is 3.2.
