Average Weather in Rantrum Germany
In Rantrum, the summers are comfortable and partly cloudy; the winters are long, very cold, and mostly cloudy; and it is windy year round. Over the course of the year, the temperature typically varies from 31°F to 71°F and is rarely below 17°F or above 81°F.
Based on the tourism score, the best time of year to visit Rantrum for warm-weather activities is from late June to late August.
The warm season lasts for 3.1 months, from June 8 to September 11, with an average daily high temperature above 64°F. The hottest day of the year is August 6, with an average high of 71°F and low of 56°F.
The cold season lasts for 3.9 months, from November 20 to March 17, with an average daily high temperature below 45°F. The coldest day of the year is February 8, with an average low of 31°F and high of 39°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 Rantrum, 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 Rantrum begins around April 3 and lasts for 6.2 months, ending around October 9. On July 22, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 57% of the time, and overcast or mostly cloudy 43% of the time.
The cloudier part of the year begins around October 9 and lasts for 5.8 months, ending around April 3. On December 18, the cloudiest day of the year, the sky is overcast or mostly cloudy 70% of the time, and clear, mostly clear, or partly cloudy 30% of the time.
Cloud Cover Categories
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Rantrum varies throughout the year.
The wetter season lasts 7.9 months, from June 13 to February 9, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 38% on November 4.
The drier season lasts 4.1 months, from February 9 to June 13. The smallest chance of a wet day is 20% 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 38% on November 4.
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. Rantrum experiences some seasonal variation in monthly rainfall.
Rain falls throughout the year in Rantrum. The most rain falls during the 31 days centered around October 25, with an average total accumulation of 2.5 inches.
The least rain falls around April 19, with an average total accumulation of 1.1 inches.
Average Monthly Rainfall
The sliding 31-day liquid-equivalent quantity of snowfall in Rantrum 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 Rantrum varies extremely over the course of the year. In 2021, the shortest day is December 21, with 7 hours, 17 minutes of daylight; the longest day is June 21, with 17 hours, 15 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 4:47 AM on June 17, and the latest sunrise is 3 hours, 58 minutes later at 8:45 AM on December 29. The earliest sunset is at 3:58 PM on December 14, and the latest sunset is 6 hours, 5 minutes later at 10:02 PM on June 24.
Daylight saving time (DST) is observed in Rantrum during 2021, starting in the spring on March 28, lasting 7.1 months, and ending in the fall on October 31.
Sunrise & Sunset with Twilight and Daylight Saving Time
The figure below presents a compact representation of key lunar data for 2021. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.
Moon Rise, Set & Phases
The perceived humidity level in Rantrum, 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
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Rantrum experiences significant seasonal variation over the course of the year.
The windier part of the year lasts for 5.5 months, from October 11 to March 28, with average wind speeds of more than 13.0 miles per hour. The windiest day of the year is January 24, with an average hourly wind speed of 15.2 miles per hour.
The calmer time of year lasts for 6.5 months, from March 28 to October 11. The calmest day of the year is August 4, with an average hourly wind speed of 10.9 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Rantrum varies throughout the year.
The wind is most often from the south for 1.6 months, from October 14 to December 1, with a peak percentage of 37% on November 9. The wind is most often from the west for 10 months, from December 1 to October 14, with a peak percentage of 39% on January 1.
Rantrum 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 3.1 months, from June 18 to September 22, with an average temperature above 59°F. The day of the year with the warmest water is August 9, with an average temperature of 65°F.
The time of year with cooler water lasts for 4.1 months, from December 6 to April 10, with an average temperature below 42°F. The day of the year with the coolest water is February 14, with an average temperature of 37°F.
Average Water Temperature
Best Time of Year to Visit
To characterize how pleasant the weather is in Rantrum throughout the year, we compute two travel scores.
The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Rantrum for general outdoor tourist activities is from late June to late August, with a peak score in the last week of July.
The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Rantrum for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.
For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.
Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.
Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.
Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.
Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.
The growing season in Rantrum typically lasts for 6.5 months (198 days), from around April 18 to around November 2, rarely starting before March 27 or after May 8, and rarely ending before October 9 or after November 28.
Time Spent in Various Temperature Bands and the Growing Season
Based on growing degree days alone, the first spring blooms in Rantrum should appear around May 10, only rarely appearing before April 29 or after May 24.
Growing Degree Days
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 3.5 months, from April 30 to August 13, with an average daily incident shortwave energy per square meter above 5.2 kWh. The brightest day of the year is June 25, with an average of 6.4 kWh.
The darker period of the year lasts for 4.0 months, from October 21 to February 23, with an average daily incident shortwave energy per square meter below 1.6 kWh. The darkest day of the year is December 25, with an average of 0.4 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Rantrum are 54.433 deg latitude, 9.117 deg longitude, and -10 ft elevation.
The topography within 2 miles of Rantrum is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 4 feet. Within 10 miles is essentially flat (213 feet). Within 50 miles contains only modest variations in elevation (686 feet).
The area within 2 miles of Rantrum is covered by grassland (62%) and cropland (26%), within 10 miles by grassland (50%) and cropland (33%), and within 50 miles by water (38%) and cropland (35%).
This report illustrates the typical weather in Rantrum, 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 Rantrum.
For each station, the records are corrected for the elevation difference between that station and Rantrum 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 Rantrum is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Rantrum and a given station.
The stations contributing to this reconstruction are: Eggebek (31%, 26 kilometers, northeast); Schleswig Air Base (31%, 26 kilometers, east); Hohn (25%, 30 kilometers, southeast); Westerland / Sylt (7%, 73 kilometers, northwest); and Sea-Airport Cuxhaven/Nordholz (6%, 80 kilometers, south).
Time zones for airports and weather stations are provided by AskGeo.com .