Waterloo, Belgium Climate by Month
Waterloo, Wallonia, Belgium
Mild summers and cool winters, with rain spread through the year.
Waterloo has mild summers and cool winters, with rain spread through the year. Afternoon highs range from 43°F (6°C) in January to 74°F (23°C) in July, and February nights average 34°F (1°C). About 32 in (820 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 74°F(23°C)
- Average high, July
- Coldest nights
- 34°F(1°C)
- Average low, February
- Rain per year
- 32 in(820 mm)
- No clear rainy season
- Humidity
- 78%
- Sunniest: June
Best and worst months in Waterloo
Best for weatherJuly and August are the best time for weather in Waterloo: highs near 73°F (23°C) and about 3.0 in (76 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 43°F (6°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in July.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Waterloo weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 43°F(6°C) | 34°F(1°C) | 2.8 in(70 mm) | 88% | 0.7 |
| FebFebruary | 45°F(7°C) | 34°F(1°C) | 2.5 in(64 mm) | 85% | 1.3 |
| MarMarch | 52°F(11°C) | 38°F(3°C) | 2.3 in(59 mm) | 79% | 2.5 |
| AprApril | 59°F(15°C) | 42°F(6°C) | 1.8 in(46 mm) | 72% | 4.0 |
| MayMay | 65°F(18°C) | 48°F(9°C) | 2.4 in(62 mm) | 70% | 4.8 |
| JunJune | 70°F(21°C) | 53°F(12°C) | 2.7 in(69 mm) | 69% | 5.2 |
| JulJulyBest | 74°F(23°C) | 57°F(14°C) | 2.9 in(73 mm) | 71% | 5.1 |
| AugAugustBest | 73°F(23°C) | 56°F(14°C) | 3.1 in(79 mm) | 72% | 4.4 |
| SepSeptember | 67°F(20°C) | 52°F(11°C) | 2.4 in(61 mm) | 75% | 3.2 |
| OctOctober | 59°F(15°C) | 46°F(8°C) | 2.8 in(70 mm) | 81% | 1.8 |
| NovNovember | 50°F(10°C) | 40°F(4°C) | 3.1 in(80 mm) | 89% | 0.9 |
| DecDecember | 44°F(7°C) | 36°F(2°C) | 3.4 in(87 mm) | 84% | 0.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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