Climate - Bremen (Germany)
Average weather, temperature, rainfall, sunshine hours
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Climate chart - Bremen (Germany)
The climate of Bremen is sub-oceanic, humid and rainy, with cold, gray winters and mild or pleasantly warm summers.
The city is located in northwestern Germany, on the banks of the Weser River, and is the capital of the small state of Bremen. About 50 km (30 mi) further north is the city of Bremerhaven, the port of Bremen, which is also part of the state.
The wind blows quite frequently, and can be intense, especially from November to March.
The average temperature of the coldest month (January) is of 2.1 °C (36 °F), that of the warmest month (July) is of 18.4 °C (65 °F). Here are the average temperatures.
Bremen - Average temperatures (1991-2020) | Month | Min (°C) | Max (°C) | Mean (°C) | Min (°F) | Max (°F) | Mean (°F) |
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| January | -0.4 | 4.6 | 2.1 | 31 | 40 | 35.8 |
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| February | -0.3 | 5.6 | 2.6 | 31 | 42 | 36.8 |
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| March | 1.3 | 9.3 | 5.3 | 34 | 49 | 41.5 |
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| April | 4.1 | 14.3 | 9.2 | 39 | 58 | 48.6 |
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| May | 7.8 | 18.3 | 13 | 46 | 65 | 55.5 |
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| June | 10.8 | 21.2 | 16 | 51 | 70 | 60.8 |
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| July | 13.1 | 23.6 | 18.4 | 56 | 74 | 65 |
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| August | 12.8 | 23.3 | 18 | 55 | 74 | 64.5 |
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| September | 9.8 | 19.3 | 14.6 | 50 | 67 | 58.2 |
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| October | 6.2 | 14 | 10.1 | 43 | 57 | 50.2 |
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| November | 3 | 8.6 | 5.8 | 37 | 47 | 42.4 |
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| December | 0.5 | 5.3 | 2.9 | 33 | 42 | 37.2 |
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| Year | 5.8 | 14 | 9.85 | 42.4 | 57.2 | 49.5 |
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Precipitation amounts to 675 millimeters (26.6 inches) per year: so, it is at an intermediate level. It ranges from 40 mm (1.6 in) in the driest months (February, April) to 75 mm (3 in) in the wettest (July). Here is the average precipitation.
Bremen - Average precipitation| Month | Millimeters | Inches | Days |
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| January | 60 | 2.4 | 12 |
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| February | 40 | 1.6 | 9 |
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| March | 45 | 1.8 | 9 |
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| April | 40 | 1.6 | 8 |
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| May | 50 | 2 | 9 |
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| June | 65 | 2.6 | 10 |
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| July | 75 | 3 | 11 |
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| August | 70 | 2.8 | 10 |
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| September | 60 | 2.4 | 9 |
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| October | 55 | 2.2 | 11 |
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| November | 50 | 2 | 10 |
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| December | 60 | 2.4 | 12 |
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| Year | 675 | 26.6 | 120 |
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Although the winter is not very cold for the latitude, it is often humid, windy and rainy. There may be relatively mild periods, when Atlantic currents prevail, and other colder periods, when the temperature drops below freezing and it can snow.
Sometimes, there can be cold spells, in which temperatures can drop as low as -10 °C (14 °F) or even below. In fact, Scandinavian high pressure systems can reverse the normal circulation and bring very cold periods, which in the past were more frequent. The cold record is -23.5 °C (-10.5 °F), set in February 1940.
Even in spring, until April or the first half of May, there is often cold and unstable weather.
In summer, the temperatures are generally pleasant and lend themselves to outdoor activities, although there are cool and rainy periods, and sometimes thunderstorms can break out.
At times, hot periods can occur, generally of short duration, which in recent years are becoming more frequent due to global warming, and in which the temperature can exceed 30 °C (86 °F). However, given the latitude and the short distance from the sea, the heat is less intense and lasting than in the central-southern German plains. On the hottest days of the year, the temperature typically reaches 33 °C (91 °F). The heat record is 37.5 °C (99.5 °F), set in August 1992. In August 2020, there were 8 days in a row with maximum temperatures ranging from 31 to 34 °C (88 to 93 °F).
On average, there are around 1,595 sunshine hours per year. Here are the average sunshine hours per day.
Bremen - Sunshine hours| Month | Average | Total |
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January | 1.5 | 50 | February | 2.5 | 70 | March | 4 | 120 | April | 6 | 180 | May | 7 | 210 | June | 7 | 205 | July | 7 | 215 | August | 6.5 | 195 | September | 5 | 150 | October | 3.5 | 110 | November | 1.5 | 50 | December | 1.5 | 40 | Year | 4.4 | 1595 |
The sea temperature ranges between 4 °C (39 °F) in February and 18.5 °C (65 °F) in August. So, it never becomes warm for swimming. Here are the average sea temperatures.
Bremen - Sea temperature| Month | Celsius (°C) | Fahrenheit (°F) |
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January | 5 | 41 | February | 4 | 39 | March | 4.5 | 40 | April | 7 | 45 | May | 11 | 52 | June | 15 | 59 | July | 17.5 | 64 | August | 18.5 | 65 | September | 17 | 63 | October | 14.5 | 58 | November | 10.5 | 51 | December | 7 | 44 | Year | 11 | 51.8 |
Best Time
The best time to visit Bremen runs from mid-May to mid-September, since it is the warmest and sunniest period of the year. Sometimes, it can be hot in July and August, while in other circumstances, nights can be cool or even a little cold even in these months, so it can be useful to bring a sweatshirt or sweater and a light jacket.
Bremen - Weather by month
Based on the period 1991-2020
January, the coldest month of the year, is generally a cold month. The average temperature is of 2.1 °C (36 °F), with a minimum of -0.4 °C (31.3 °F) and a maximum of 4.6 °C (40.3 °F).
On the coldest nights of the month, the temperature usually drops to around -9 °C (16 °F). However, it dropped to -18.7 °C (-1.7 °F) in January 1997.
On the warmest days of the month, the temperature usually reaches around 11.5 °C (52.5 °F). However, it reached 14.6 °C (58.3 °F) in January 1993.
Precipitation amounts to 60 mm (2.4 in), distributed over 12 days.
The day lasts on average 8 hours and 10 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 19% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is 19 kph (12 mph).
The average sea temperature is of 5 °C (41 °F). Therefore, the sea is very cold for swimming.
February is generally a cold month. The average temperature is of 2.6 °C (37 °F), with a minimum of -0.3 °C (31.5 °F) and a maximum of 5.6 °C (42.1 °F).
On the coldest nights of the month, the temperature usually drops to around -8 °C (17 °F). However, it dropped to -15.3 °C (4.5 °F) in February 2012.
On the warmest days of the month, the temperature usually reaches around 12.5 °C (54 °F). However, it reached 18.1 °C (64.6 °F) in February 2020.
Precipitation amounts to 40 mm (1.6 in), distributed over 9 days.
The day lasts on average 9 hours and 55 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 25% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 4 °C (39 °F). Therefore, the sea is very cold for swimming.
March is generally a quite cold month. The average temperature is of 5.3 °C (42 °F), with a minimum of 1.3 °C (34.3 °F) and a maximum of 9.3 °C (48.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -5 °C (23 °F). However, it dropped to -17.8 °C (0 °F) in March 2005.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 17 °C (63 °F). However, it reached 22.5 °C (72.5 °F) in March 2017.
Precipitation amounts to 45 mm (1.8 in), distributed over 9 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 32% of the time.
The average humidity is 78%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 4.5 °C (40 °F). Therefore, the sea is very cold for swimming.
April is generally a mild month. The average temperature is of 9.2 °C (49 °F), with a minimum of 4.1 °C (39.4 °F) and a maximum of 14.3 °C (57.7 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around -3 °C (26.5 °F). However, it dropped to -7.6 °C (18.3 °F) in April 1996.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 22.5 °C (72.5 °F). However, it reached 27.3 °C (81.1 °F) in April 2018.
Precipitation amounts to 40 mm (1.6 in), distributed over 8 days.
The day lasts on average 14 hours and 5 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 7 °C (45 °F). Therefore, the sea is very cold for swimming.
May is generally a mild month. The average temperature is of 13.0 °C (55 °F), with a minimum of 7.8 °C (46 °F) and a maximum of 18.3 °C (64.9 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 0.5 °C (33 °F). However, it dropped to -3.5 °C (25.7 °F) in May 1996.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 26.5 °C (79.5 °F). However, it reached 32.3 °C (90.1 °F) in May 2018.
Precipitation amounts to 50 mm (2 in), distributed over 9 days.
The day lasts on average 15 hours and 55 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 69%.
The average wind speed is 15 kph (9 mph).
The average sea temperature is of 11 °C (52 °F). Therefore, the sea is very cold for swimming.
June is generally a very mild month. The average temperature is of 16 °C (61 °F), with a minimum of 10.8 °C (51.4 °F) and a maximum of 21.2 °C (70.2 °F).
On the coldest nights, which normally occur at the beginning of the month, the temperature usually drops to around 5 °C (40.5 °F). However, it dropped to 0.8 °C (33.4 °F) in June 1991.
On the warmest days, which normally occur at the end of the month, the temperature usually reaches around 30 °C (85.5 °F). However, it reached 35.4 °C (95.7 °F) in June 2019.
Precipitation amounts to 65 mm (2.6 in), distributed over 10 days.
The day lasts on average 16 hours and 55 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 7 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 71%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 15 °C (59 °F). Therefore, the sea is cold for swimming.
July, the warmest month of the year, is generally a warm month. The average temperature is of 18.4 °C (65 °F), with a minimum of 13.1 °C (55.6 °F) and a maximum of 23.6 °C (74.5 °F).
On the coldest nights of the month, the temperature usually drops to around 7.5 °C (45.5 °F). However, it dropped to 5.2 °C (41.4 °F) in July 1993.
On the warmest days of the month, the temperature usually reaches around 31.5 °C (88.5 °F). However, it reached 37.4 °C (99.3 °F) in July 2019.
Precipitation amounts to 75 mm (3 in), distributed over 11 days.
The day lasts on average 16 hours and 20 minutes. So the days are long.
There are on average 7 hours of sunshine per day. So, the sun shines 42% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is 14 kph (8 mph).
The average sea temperature is of 17.5 °C (63.5 °F). Therefore, the sea is cold for swimming.
August is generally a very mild month. The average temperature is of 18.0 °C (64 °F), with a minimum of 12.8 °C (55 °F) and a maximum of 23.3 °C (73.9 °F).
On the coldest nights of the month, the temperature usually drops to around 7 °C (44.5 °F). However, it dropped to 4.1 °C (39.4 °F) in August 1991.
On the warmest days of the month, the temperature usually reaches around 31.5 °C (88.5 °F). However, it reached 37.6 °C (99.7 °F) in August 1992.
Precipitation amounts to 70 mm (2.8 in), distributed over 10 days.
The day lasts on average 14 hours and 35 minutes. So the days are long.
There are on average 6.5 hours of sunshine per day. So, the sun shines 43% of the time.
The average humidity is 74%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 18.5 °C (65.5 °F). Therefore, the sea is very cool for swimming.
September is generally a very mild month. The average temperature is of 14.6 °C (58 °F), with a minimum of 9.8 °C (49.6 °F) and a maximum of 19.3 °C (66.7 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around 3.5 °C (38.5 °F). However, it dropped to -0.2 °C (31.6 °F) in September 1997.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 26 °C (78.5 °F). However, it reached 32.1 °C (89.8 °F) in September 2016.
Precipitation amounts to 60 mm (2.4 in), distributed over 9 days.
The day lasts on average 12 hours and 35 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is 13 kph (8 mph).
The average sea temperature is of 17 °C (62.5 °F). Therefore, the sea is cold for swimming.
October is generally a mild month. The average temperature is of 10.1 °C (50 °F), with a minimum of 6.2 °C (43.2 °F) and a maximum of 14 °C (57.2 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -1 °C (30.5 °F). However, it dropped to -7.8 °C (18 °F) in October 1997.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 20.5 °C (69 °F). However, it reached 28.6 °C (83.5 °F) in October 2011.
Precipitation amounts to 55 mm (2.2 in), distributed over 11 days.
The day lasts on average 10 hours and 30 minutes.
There are on average 3.5 hours of sunshine per day. So, the sun shines 34% of the time.
The average humidity is 86%. Hence, the air is normally humid.
The average wind speed is 14 kph (9 mph).
The average sea temperature is of 14.5 °C (57.5 °F). Therefore, the sea is very cold for swimming.
November is generally a quite cold month. The average temperature is of 5.8 °C (42 °F), with a minimum of 3 °C (37.4 °F) and a maximum of 8.6 °C (47.5 °F).
On the coldest nights, which normally occur at the end of the month, the temperature usually drops to around -4 °C (24.5 °F). However, it dropped to -9.2 °C (15.4 °F) in November 1993.
On the warmest days, which normally occur at the beginning of the month, the temperature usually reaches around 15 °C (59 °F). However, it reached 20.1 °C (68.2 °F) in November 2014.
Precipitation amounts to 50 mm (2 in), distributed over 10 days.
The day lasts on average 8 hours and 35 minutes.
There are on average 1.5 hours of sunshine per day. So, the sun shines 20% of the time.
The average humidity is 89%. Hence, the air is normally humid.
The average wind speed is 16 kph (10 mph).
The average sea temperature is of 10.5 °C (51.5 °F). Therefore, the sea is very cold for swimming.
December is generally a cold month. The average temperature is of 2.9 °C (37 °F), with a minimum of 0.5 °C (32.9 °F) and a maximum of 5.3 °C (41.5 °F).
On the coldest nights of the month, the temperature usually drops to around -7.5 °C (18.5 °F). However, it dropped to -15.3 °C (4.5 °F) in December 2010.
On the warmest days of the month, the temperature usually reaches around 12 °C (53.5 °F). However, it reached 15.1 °C (59.2 °F) in December 2006.
Precipitation amounts to 60 mm (2.4 in), distributed over 12 days.
The day lasts on average 7 hours and 35 minutes. So the days are short. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 1.5 hours of sunshine per day. So, the sun shines 17% of the time.
The average humidity is 89%. Hence, the air is normally humid.
The average wind speed is 17 kph (11 mph).
The average sea temperature is of 7 °C (44.5 °F). Therefore, the sea is very cold for swimming.
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