Climate and Average Weather Year Round in Somerset East South Africa
In Somerset East, the summers are hot; the winters are cold, dry, and windy; and it is mostly clear year round. Over the course of the year, the temperature typically varies from 39°F to 87°F and is rarely below 32°F or above 97°F.
Based on the tourism score, the best time of year to visit Somerset East for warm-weather activities is from mid November to mid April.
Climate in Somerset East
Average Temperature in Somerset East
The hot season lasts for 3.2 months, from December 7 to March 13, with an average daily high temperature above 83°F. The hottest day of the year is January 27, with an average high of 87°F and low of 59°F.
The cool season lasts for 3.0 months, from May 24 to August 26, with an average daily high temperature below 70°F. The coldest day of the year is July 11, with an average low of 39°F and high of 65°F.
Average High and Low Temperature in Somerset East
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 Somerset East
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
In Somerset East, 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 Somerset East begins around December 12 and lasts for 3.5 months, ending around March 29. On February 11, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 82% of the time, and overcast or mostly cloudy 18% of the time.
The cloudier part of the year begins around March 29 and lasts for 8.5 months, ending around December 12. On October 6, the cloudiest day of the year, the sky is overcast or mostly cloudy 41% of the time, and clear, mostly clear, or partly cloudy 59% of the time.
Cloud Cover Categories in Somerset East
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 Somerset East varies throughout the year.
The wetter season lasts 5.7 months, from October 18 to April 9, with a greater than 21% chance of a given day being a wet day. The chance of a wet day peaks at 36% on February 22.
The drier season lasts 6.3 months, from April 9 to October 18. The smallest chance of a wet day is 7% on July 9.
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 February 22.
Daily Chance of Precipitation in Somerset East
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. Somerset East experiences significant seasonal variation in monthly rainfall.
Rain falls throughout the year in Somerset East. The most rain falls during the 31 days centered around November 19, with an average total accumulation of 2.9 inches.
The least rain falls around June 30, with an average total accumulation of 0.6 inches.
Average Monthly Rainfall in Somerset East
The length of the day in Somerset East varies significantly over the course of the year. In 2021, the shortest day is June 21, with 10 hours, 0 minutes of daylight; the longest day is December 21, with 14 hours, 19 minutes of daylight.
Hours of Daylight and Twilight in Somerset East
The earliest sunrise is at 5:02 AM on December 4, and the latest sunrise is 2 hours, 18 minutes later at 7:20 AM on June 30. The earliest sunset is at 5:18 PM on June 11, and the latest sunset is 2 hours, 11 minutes later at 7:29 PM on January 7.
Daylight saving time (DST) is not observed in Somerset East during 2021.
Sunrise & Sunset with Twilight in Somerset East
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 in Somerset East
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 Somerset East, 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 in Somerset East
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Somerset East experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 7.5 months, from May 18 to January 1, with average wind speeds of more than 9.4 miles per hour. The windiest day of the year is July 19, with an average hourly wind speed of 10.7 miles per hour.
The calmer time of year lasts for 4.5 months, from January 1 to May 18. The calmest day of the year is March 29, with an average hourly wind speed of 8.0 miles per hour.
Average Wind Speed in Somerset East
The predominant average hourly wind direction in Somerset East varies throughout the year.
The wind is most often from the north for 4.5 months, from April 1 to August 15, with a peak percentage of 49% on July 1. The wind is most often from the west for 1.5 months, from August 15 to September 30, with a peak percentage of 37% on August 17. The wind is most often from the south for 6.0 months, from September 30 to April 1, with a peak percentage of 45% on January 1.
Wind Direction in Somerset East
Best Time of Year to Visit
To characterize how pleasant the weather is in Somerset East 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 Somerset East for general outdoor tourist activities is from mid November to mid April, with a peak score in the third week of March.
Tourism Score in Somerset East
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 Somerset East for hot-weather activities is from mid December to early March, with a peak score in the last week of January.
Beach/Pool Score in Somerset East
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.
Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).
The growing season in Somerset East typically lasts for 9.5 months (290 days), from around August 26 to around June 12, rarely starting after October 4, or ending before May 19.
Time Spent in Various Temperature Bands and the Growing Season in Somerset East
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.
Based on growing degree days alone, the first spring blooms in Somerset East should appear around July 21, only rarely appearing before July 16 or after July 27.
Growing Degree Days in Somerset East
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 3.3 months, from November 5 to February 15, with an average daily incident shortwave energy per square meter above 7.3 kWh. The brightest day of the year is December 22, with an average of 8.4 kWh.
The darker period of the year lasts for 3.5 months, from April 28 to August 12, with an average daily incident shortwave energy per square meter below 4.1 kWh. The darkest day of the year is June 20, with an average of 3.0 kWh.
Average Daily Incident Shortwave Solar Energy in Somerset East
For the purposes of this report, the geographical coordinates of Somerset East are -32.722 deg latitude, 25.588 deg longitude, and 2,454 ft elevation.
The topography within 2 miles of Somerset East contains large variations in elevation, with a maximum elevation change of 2,585 feet and an average elevation above sea level of 2,739 feet. Within 10 miles contains large variations in elevation (3,383 feet). Within 50 miles also contains extreme variations in elevation (6,762 feet).
The area within 2 miles of Somerset East is covered by trees (39%), artificial surfaces (23%), shrubs (20%), and cropland (11%), within 10 miles by shrubs (49%) and grassland (30%), and within 50 miles by shrubs (72%) and grassland (19%).
This report illustrates the typical weather in Somerset East, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Somerset East.
For each station, the records are corrected for the elevation difference between that station and Somerset East 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 Somerset East is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Somerset East and a given station.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , 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 airports 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.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.