Charleroi climate
Charleroi (Belgium) has a temperate oceanic climate (Köppen Cfb). The average temperature over the year is 10 °C50 °F, and about 776 mm31 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Charleroi climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 540 | −131 | 236 | 702.8 | 15 |
| Feb | 642 | −131 | 337 | 632.5 | 14 |
| Mar | 1050 | 134 | 542 | 592.3 | 10 |
| Apr | 1458 | 439 | 949 | 421.7 | 4 |
| May | 1864 | 846 | 1355 | 612.4 | 0 |
| Jun | 2170 | 1152 | 1661 | 662.6 | 0 |
| Jul | 2373 | 1355 | 1864 | 722.8 | 0 |
| Aug | 2272 | 1355 | 1864 | 793.1 | 0 |
| Sep | 1967 | 949 | 1458 | 532.1 | 0 |
| Oct | 1558 | 744 | 1151 | 622.5 | 1 |
| Nov | 948 | 338 | 643 | 702.8 | 5 |
| Dec | 541 | 033 | 337 | 793.1 | 13 |
| Year | 2373 | −131 | 1050 | 77631 | 63 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 93% | 77% | 0.8 | 8:28 |
| Feb | 90% | 74% | 1.5 | 9:58 |
| Mar | 85% | 69% | 2.7 | 11:43 |
| Apr | 80% | 64% | 4.2 | 13:43 |
| May | 79% | 69% | 5.0 | 15:26 |
| Jun | 78% | 69% | 5.4 | 16:25 |
| Jul | 77% | 67% | 5.2 | 16:01 |
| Aug | 78% | 66% | 4.4 | 14:29 |
| Sep | 80% | 63% | 3.4 | 12:32 |
| Oct | 86% | 70% | 2.0 | 10:36 |
| Nov | 92% | 77% | 1.0 | 8:54 |
| Dec | 94% | 77% | 0.6 | 8:02 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Charleroi is like
The warmest month is July, with an average high of 23 °C73 °F and a low of 13 °C55 °F. The coldest is January, when highs average 5 °C40 °F and lows −1 °C31 °F. There is a clear seasonal cycle, with 16 °C28.8 °F between the average temperature of the warmest and the coolest month.
Annual precipitation is moderate at about 776 mm31 in. Rain is spread fairly evenly through the year. The wettest month is December (79 mm3.1 in), the driest is April (42 mm1.7 in).
Relative humidity ranges from 77% in July to 94% in December. The clearest skies (lowest average cloud amount, 63%) are typical of September. Average wind speed near the ground ranges from 9 km/h (6 mph) in August to 14 km/h (9 mph) in January. Daylight lasts from about 8.0 hours in December to 16.4 hours in June.
Best time to visit Charleroi
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June–September: average highs of 19 °C67 °F to 23 °C73 °F with 53 mm2.1 in to 79 mm3.1 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 5 °C40 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Charleroi
- Winter (December–February) — highs 540 to 6 °C42 °F, lows −131 to 0 °C33 °F, about 71 mm2.8 in of precipitation a month. Pack a warm coat, layers and closed shoes and shoes with good grip, as frost is common.
- Spring (March–May) — highs 1050 to 18 °C64 °F, lows 134 to 8 °C46 °F, about 54 mm2.1 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
- Summer (June–August) — highs 2170 to 23 °C73 °F, lows 1152 to 13 °C55 °F, about 72 mm2.8 in of precipitation a month. Pack light layers — T-shirts plus a light sweater or jacket.
- Autumn (September–November) — highs 948 to 19 °C67 °F, lows 338 to 9 °C49 °F, about 62 mm2.4 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket.
How Charleroi compares
Compared with Brussels, about 49 km to the north, Charleroi is on average 0.6 °C1.1 °F cooler and receives a similar amount of precipitation. The difference is largest in September (0.7 °C1.3 °F cooler).
Of the 8 places in Belgium covered by World Climates, Charleroi is the 8th warmest by annual mean temperature and the 5th wettest by annual precipitation. See all of them on the Belgium climate page.
Places in other countries with the most similar temperature and rainfall pattern: Nijmegen (The Netherlands, Cfb), Zwolle (The Netherlands, Cfb) and Amersfoort (The Netherlands, Cfb).
Nearby places
- Namur 31 km · 10 °C50 °F · 808 mm32 in
- Brussels 49 km · 10 °C51 °F · 764 mm30 in
- Leuven 55 km · 11 °C51 °F · 763 mm30 in
- Liège 83 km · 11 °C51 °F · 862 mm34 in
- Gent 88 km · 10 °C51 °F · 778 mm31 in
- Antwerp 90 km · 11 °C51 °F · 764 mm30 in
- Maastricht 100 km · 11 °C51 °F · 771 mm30 in
- Lille 101 km · 11 °C51 °F · 732 mm29 in
Frequently asked questions
What is the warmest month in Charleroi?
July is the warmest month in Charleroi, with an average high of 23 °C (73 °F) and an average low of 13 °C (55 °F).
What is the coldest month in Charleroi?
January is the coldest month, with an average high of 5 °C (40 °F) and an average low of -1 °C (31 °F).
When does it rain the most in Charleroi?
December is the wettest month with about 79 mm (3.1 in) of precipitation; April is the driest with about 42 mm (1.7 in).
What is the best time to visit Charleroi?
Judging by long-term averages, the most comfortable months are June–September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.