1. WeatherSpark.com
  2. Belgium
  3. Wallonia

Average Weather in Charleroi Belgium

In Charleroi, the summers are comfortable and partly cloudy and the winters are long, very cold, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 33°F to 74°F and is rarely below 21°F or above 85°F.

Based on the tourism score, the best time of year to visit Charleroi for warm-weather activities is from late June to early September.

Climate Summary

very coldcoldcoolcomfortablecoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow58%58%24%24%overcastclearprecipitation: 2.3 inprecipitation: 2.3 in1.4 in1.4 inmuggy: 3%muggy: 3%0%0%drydrytourism score: 6.8tourism score: 6.80.10.1
Click on each chart for more information.

Temperature

The warm season lasts for 3.0 months, from June 10 to September 9, with an average daily high temperature above 67°F. The hottest day of the year is August 4, with an average high of 74°F and low of 58°F.

The cool season lasts for 3.7 months, from November 18 to March 9, with an average daily high temperature below 48°F. The coldest day of the year is February 7, with an average low of 33°F and high of 42°F.

Average High and Low Temperature

Average High and Low Temperature in CharleroiwarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 742°FFeb 742°FAug 474°FAug 474°F33°F33°F58°F58°FJun 1067°FJun 1067°FSep 967°FSep 967°FNov 1848°FNov 1848°FMar 948°FMar 948°F52°F52°F53°F53°F40°F40°F37°F37°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

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

Average Hourly Temperature in CharleroiJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcomfortable
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
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Vancouver, Canada (4,892 miles away) is the far-away foreign place with temperatures most similar to Charleroi (view comparison).

Clouds

In Charleroi, 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 Charleroi begins around March 31 and lasts for 6.4 months, ending around October 12. On July 27, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 58% of the time, and overcast or mostly cloudy 42% 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 27, the cloudiest day of the year, the sky is overcast or mostly cloudy 76% of the time, and clear, mostly clear, or partly cloudy 24% of the time.

Cloud Cover Categories

Cloud Cover Categories in CharleroiclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2758%Jul 2758%Dec 2724%Dec 2724%Mar 3141%Mar 3141%Oct 1241%Oct 1241%NowNowclearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Charleroi varies throughout the year.

The wetter season lasts 9.4 months, from May 9 to February 20, with a greater than 29% chance of a given day being a wet day. The chance of a wet day peaks at 34% on December 22.

The drier season lasts 2.7 months, from February 20 to May 9. The smallest chance of a wet day is 24% on April 23.

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 33% on May 26.

Daily Chance of Precipitation

Daily Chance of Precipitation in CharleroiwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Dec 2234%Dec 2234%Apr 2324%Apr 2324%Feb 2029%Feb 2029%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

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. Charleroi experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Charleroi. The most rain falls during the 31 days centered around December 22, with an average total accumulation of 2.2 inches.

The least rain falls around April 20, with an average total accumulation of 1.4 inches.

Average Monthly Rainfall

The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day in Charleroi varies extremely over the course of the year. In 2021, the shortest day is December 21, with 8 hours, 1 minute of daylight; the longest day is June 21, with 16 hours, 27 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in CharleroiJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2016 hr, 27 minJun 2116 hr, 27 minJun 2112 hr, 11 minSep 2212 hr, 11 minSep 228 hr, 1 minDec 218 hr, 1 minDec 21nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:30 AM on June 17, and the latest sunrise is 3 hours, 12 minutes later at 8:42 AM on December 31. The earliest sunset is at 4:38 PM on December 12, and the latest sunset is 5 hours, 19 minutes later at 9:57 PM on June 25.

Daylight saving time (DST) is observed in Charleroi 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

Sunrise & Sunset with Twilight and Daylight Saving Time in CharleroiJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 175:30 AMJun 175:30 AM9:57 PMJun 259:57 PMJun 25Dec 124:38 PMDec 124:38 PM8:42 AMDec 318:42 AMDec 31Mar 28DSTMar 28DSTDSTOct 31DSTOct 31daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunsetNowNow
The solar day over the course of the year 2021. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

Moon

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 time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

Humidity

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 Charleroi, 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 2% of 2% throughout.

Humidity Comfort Levels

Humidity Comfort Levels in CharleroiJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 20%Mar 20%Aug 103%Aug 103%NowNowcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

Wind

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 Charleroi experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.8 months, from October 14 to April 6, with average wind speeds of more than 10.5 miles per hour. The windiest day of the year is January 7, with an average hourly wind speed of 12.9 miles per hour.

The calmer time of year lasts for 6.2 months, from April 6 to October 14. The calmest day of the year is August 5, with an average hourly wind speed of 8.2 miles per hour.

Average Wind Speed

Average Wind Speed in CharleroiwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphJan 712.9 mphJan 712.9 mphAug 58.2 mphAug 58.2 mphOct 1410.5 mphOct 1410.5 mphApr 610.5 mphApr 610.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Charleroi varies throughout the year.

The wind is most often from the west for 4.1 weeks, from March 5 to April 3 and for 4.2 months, from May 11 to September 18, with a peak percentage of 43% on July 11. The wind is most often from the south for 1.3 months, from April 3 to May 11 and for 5.6 months, from September 18 to March 5, with a peak percentage of 30% on April 11.

Wind Direction

Wind Direction in CharleroiSWSWSJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnortheast
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Best Time of Year to Visit

To characterize how pleasant the weather is in Charleroi 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 Charleroi for general outdoor tourist activities is from late June to early September, with a peak score in the first week of August.

Tourism Score

Tourism Score in Charleroibest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.86.80.10.1NowNowprecipitationprecipitationcloudscloudstemperaturetemperaturetourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

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 Charleroi for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.

Beach/Pool Score

Beach/Pool Score in CharleroiJanFebMarAprMayJunJulAugSepOctNovDec002244668810103.73.70.00.0NowNowprecipitationprecipitationcloudsclouds
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

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.

Growing Season

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 Charleroi typically lasts for 7.3 months (224 days), from around April 3 to around November 13, rarely starting before February 26 or after April 26, and rarely ending before October 20 or after December 14.

Time Spent in Various Temperature Bands and the Growing Season

Time Spent in Various Temperature Bands and the Growing Season in Charleroigrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Apr 350%Apr 350%Nov 1350%Nov 1390%Apr 2690%Apr 2690%Oct 2090%Oct 2010%Feb 2610%Feb 2610%Dec 1410%Dec 141%Jan 71%Jan 7Jul 24100%Jul 24100%NowNowvery coldcoldcoolcomfortablewarm
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
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 Charleroi should appear around April 21, only rarely appearing before April 6 or after May 6.

Growing Degree Days

Growing Degree Days in CharleroiJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°FApr 2190°FApr 2190°FJul 17900°FJul 17900°FSep 241,800°FSep 241,800°FDec 312,014°FDec 312,014°FNowNow
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 3.6 months, from May 1 to August 19, with an average daily incident shortwave energy per square meter above 5.2 kWh. The brightest day of the year is June 26, with an average of 6.4 kWh.

The darker period of the year lasts for 3.7 months, from October 28 to February 18, with an average daily incident shortwave energy per square meter below 1.8 kWh. The darkest day of the year is December 22, with an average of 0.7 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in CharleroibrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 266.4 kWhJun 266.4 kWhDec 220.7 kWhDec 220.7 kWhMay 15.2 kWhMay 15.2 kWhAug 195.2 kWhAug 195.2 kWhOct 281.8 kWhOct 281.8 kWhFeb 181.8 kWhFeb 181.8 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Charleroi are 50.411 deg latitude, 4.444 deg longitude, and 443 ft elevation.

The topography within 2 miles of Charleroi contains only modest variations in elevation, with a maximum elevation change of 364 feet and an average elevation above sea level of 416 feet. Within 10 miles contains only modest variations in elevation (646 feet). Within 50 miles contains significant variations in elevation (2,530 feet).

The area within 2 miles of Charleroi is covered by artificial surfaces (98%), within 10 miles by cropland (47%) and artificial surfaces (34%), and within 50 miles by cropland (44%) and trees (22%).

Data Sources

This report illustrates the typical weather in Charleroi, 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 Charleroi.

For each station, the records are corrected for the elevation difference between that station and Charleroi 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 Charleroi is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Charleroi and a given station.

The stations contributing to this reconstruction are: Brussels South Charleroi Airport (88%, 5.3 kilometers, north) and Florennes Air Base (12%, 24 kilometers, southeast).

Other Data

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.

Disclaimer

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.