Waterloo Weather & Climate: Best Time to Visit
The climate in Waterloo, Walloon Brabant, Belgium, is marked by large temperature swings across the seasons, ranging from 24°C (75°F) in July to 7°C (45°F) in January.
The city receives around 836 mm (33 in) of rain/snowfall per year. December is the wettest month and April the driest. Sunshine peaks in May, when the city sees around 6.3 hours of sunshine per day.
Monthly Temperature in Waterloo
In Waterloo, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 24°C (75°F) in July to a chilly 7°C (45°F) in January.
Nighttime temperatures range from 14°C (57°F) in July to 1°C (34°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Waterloo
On average, Waterloo receives a reasonable amount of rain/snowfall, with an annual precipitation of 836 mm (33 in). The wettest period in Waterloo occurs in December, which receives around 80 mm (3.1 in) of precipitation. During the driest month, April, Waterloo experiences moderate rainfall, totaling 56 mm (2.2 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Waterloo Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Waterloo
In Waterloo, summer days are longer and more sunny, with daily sunshine hours peaking at 6.3 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Humidity in Waterloo by Month
The city experiences its highest humidity in January, reaching 89%. In May, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Waterloo
The mean wind speed varies between 3 m/s (6 knots) and 4 m/s (8 knots) throughout the year. It is lowest in April, May, June, July, August, September, October and November and highest during January, February, March and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Waterloo 3-Day Forecast
Check the conditions for any month of the year.
