Average Weather in Bremen Germany
In Bremen, the summers are comfortable and partly cloudy and the winters are long, chilly, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 31°F to 73°F and is rarely below 17°F or above 84°F.
The warm season lasts for 3.3 months, from June 2 to September 11, with an average daily high temperature above 66°F. The hottest day of the year is August 4, with an average high of 73°F and low of 55°F.
The cold season lasts for 3.8 months, from November 17 to March 12, with an average daily high temperature below 46°F. The coldest day of the year is February 9, with an average low of 31°F and high of 40°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Bremen, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.
The clearer part of the year in Bremen begins around March 31 and lasts for 6.4 months, ending around October 12. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 54% of the time, and overcast or mostly cloudy 46% of the time.
The cloudier part of the year begins around October 12 and lasts for 5.6 months, ending around March 31. On December 18, the cloudiest day of the year, the sky is overcast or mostly cloudy 75% of the time, and clear, mostly clear, or partly cloudy 25% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Bremen varies throughout the year.
The wetter season lasts 7.9 months, from June 9 to February 5, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 36% on July 11.
The drier season lasts 4.1 months, from February 5 to June 9. The smallest chance of a wet day is 22% on April 24.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 36% on July 11.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Bremen experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Bremen. The most rain falls during the 31 days centered around July 2, with an average total accumulation of 2.1 inches.
The least rain falls around April 17, with an average total accumulation of 1.2 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Bremen does not vary significantly over the course of the year, staying within 0.1 inches of 0.1 inches throughout.
Average Liquid-Equivalent Monthly Snowfall
The length of the day in Bremen varies extremely over the course of the year. In 2017, the shortest day is December 21, with 7 hours, 33 minutes of daylight; the longest day is June 21, with 16 hours, 57 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:57 AM on June 17, and the latest sunrise is 3 hours, 41 minutes later at 8:38 AM on December 29. The earliest sunset is at 4:07 PM on December 13, and the latest sunset is 5 hours, 48 minutes later at 9:55 PM on June 24.
Daylight saving time (DST) is observed in Bremen during 2017, starting in the spring on March 26, lasting 7.1 months, and ending in the fall on October 29.
Sunrise & Sunset with Twilight and Daylight Saving Time
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The perceived humidity level in Bremen, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 1% of 1% throughout.
Humidity Comfort Levels
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Bremen experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 5.5 months, from October 18 to April 3, with average wind speeds of more than 5.9 miles per hour. The windiest day of the year is January 24, with an average hourly wind speed of 7.0 miles per hour.
The calmer time of year lasts for 6.5 months, from April 3 to October 18. The calmest day of the year is August 4, with an average hourly wind speed of 4.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Bremen varies throughout the year.
The wind is most often from the south for 1.0 months, from October 23 to November 24, with a peak percentage of 37% on October 29. The wind is most often from the west for 11 months, from November 24 to October 23, with a peak percentage of 41% on January 1.
Bremen is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average water temperature experiences significant seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.2 months, from June 18 to September 24, with an average temperature above 60°F. The day of the year with the warmest water is August 10, with an average temperature of 65°F.
The time of year with cooler water lasts for 4.0 months, from December 6 to April 6, with an average temperature below 44°F. The day of the year with the coolest water is February 17, with an average temperature of 38°F.
Average Water Temperature
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.
The brighter period of the year lasts for 3.7 months, from April 27 to August 18, with an average daily incident shortwave energy per square meter above 5.0 kWh. The brightest day of the year is June 13, with an average of 6.2 kWh.
The darker period of the year lasts for 3.9 months, from October 24 to February 20, with an average daily incident shortwave energy per square meter below 1.6 kWh. The darkest day of the year is December 24, with an average of 0.5 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Bremen are 53.075 deg latitude, 8.808 deg longitude, and 16 ft elevation.
The topography within 2 miles of Bremen is essentially flat, with a maximum elevation change of 95 feet and an average elevation above sea level of 22 feet. Within 10 miles is essentially flat (249 feet). Within 50 miles contains only modest variations in elevation (735 feet).
The area within 2 miles of Bremen is covered by artificial surfaces (94%), within 10 miles by grassland (36%) and artificial surfaces (30%), and within 50 miles by cropland (48%) and grassland (25%).
This report illustrates the typical weather in Bremen, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Bremen.
For each station, the records are corrected for the elevation difference between that station and Bremen according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Bremen is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bremen and a given station.
The stations contributing to this reconstruction are: Bremen Airport (97%, 3.3 kilometers, southwest); Sea-Airport Cuxhaven/Nordholz (0.9%, 78 kilometers, north); Jever (0.8%, 80 kilometers, northwest); Bergen (0.8%, 81 kilometers, east); and Hamburg Airport (0.6%, 100 kilometers, northeast).
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.