Spa Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Spa.
Climate overview of Spa
Spa, Liege Province, Belgium, sees big temperature differences between seasons, with July peaking at 23°C (73°F) and January dropping to 5°C (41°F).
The city has a wet climate, receiving around 1119 mm (44 in) of rain/snowfall per year. Despite the high annual total, it has warm summers and cold winters. December is the wettest month. The sunniest month is May, with 6.5 hours of sunshine per day on average.
Spa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Spa - and find the best time to visit.
Monthly Temperature in Spa
Visitors to Spa can expect significant temperature changes throughout the year. On average, daytime temperatures range from a comfortable 23°C (73°F) in July to a chilly 5°C (41°F) in January.
Nighttime temperatures range from 13°C (55°F) in July to -1°C (30°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Spa
Spa is known for its substantial rain/snowfall, with annual precipitation reaching 1119 mm (44 in). The wettest period in Spa occurs in December, which receives around 115 mm (4.5 in) of precipitation. During the driest month, April, Spa experiences moderate rainfall, totaling 74 mm (2.9 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Spa 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 Spa
In Spa, summer days are longer and more sunny, with daily sunshine hours peaking at 6.5 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 Spa by Month
The city experiences its highest humidity in November, reaching 93%. In June, the humidity drops to its lowest level at 81%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Spa
The average wind speed over the year ranges from 3 m/s (6 knots) to 5 m/s (10 knots). It is lower in June and higher in January, February and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Spa
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June and August
- Warmest weather: July and August
- Most sunshine: May and June
- Seasonal pattern: Warm summers and cold winters
- Coldest conditions: January, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Spa
What is the best time to visit Spa?
June and August typically offer the most optimal weather in Spa. In contrast, January, February, March, November and December tend to have less optimal conditions. Spa has warm summers and cold winters.
What temperatures can I expect in Spa?
Daytime highs range from 5°C (41°F) in January to 23°C (73°F) in July. Nighttime lows range from -1°C (30°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Spa get?
Annual rainfall is around 1119 mm (44 in). December is the wettest month with 115 mm (4.5 in), while April is the driest with 74 mm (2.9 in).
How sunny is Spa?
Spa receives around 1,530 hours of sunshine per year. May is the sunniest month with 195 hours, while December is the cloudiest with just 45 hours.
Spa 3-Day Forecast
Spa on the map
Spa is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Brussels
24°C (75°F) Ghent24°C (75°F) Durbuy
23°C (73°F) Antwerp24°C (75°F) Bruges23°C (73°F) Blankenberge21°C (70°F) Knokke-Heist22°C (72°F) Ostend21°C (70°F) 
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