Spa Weather in August
Spa in August sees high daytime temperatures of 22°C (72°F) and nighttime lows of 13°C (55°F). Rainfall is fairly high this month at around 97 mm (3.8 in), so pack a rain jacket to stay dry.
Rainfall in Spa in August
Looking at the last 30 years, the data shows about 17 days with rain, averaging 97 mm (3.8 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Spa in August
August is one of the better months to visit Spa. Expect 22°C (72°F) during the day and 13°C (55°F) at night. August is in the summer season. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 13°C (55°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Spa in August
The city usually sees around 175 hours of sunlight, indicating a moderately sunny period.
Wind Speed in Spa in August
In August, average wind speeds reach 4 m/s (8 knots), leading to light to moderate breezes. Conditions vary from day to day, with both calm and windier periods.If you favor pleasant temperatures and minimal rainfall, August is one of the best months to visit Spa.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belgium, check out our Spa's climate page.
Spa Temperature in August
Min Temperature
13°C (55°F)
Max Temperature
22°C (72°F)
Chance of Rain
56%
Precipitation
97 mm (3.8 in)
Rainy days
17 days
Humidity
88% *
Windspeed
4 m/s (8 knots) *
Sunshine
175 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Spa typically stay consistent throughout August, with daily highs averaging around 22°C (72°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 13°C (55°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Spa in August
Browse day-by-day weather records for Spa spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Spa historical weather extremes in August
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Spa.
- Spa recorded its highest August temperature of 34°C (93°F) on August 12, 2003.
- The coldest August day was on August 31, 1978, with a maximum of 9°C (48°F).
- The coldest night in August in Spa was on August 30, 2007, with a minimum of 3°C (37°F).
Best Places in Belgium in August
Find out more about the weather in Belgium and which places have the best travel conditions in this month. See all of Belgium in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Spa in August
Comfortable temperatures call for an easy wardrobe in August. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Spa in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Belgium, check out our Spa's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Spa climate overview or explore weather in Belgium.
