Spa weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: May – September
What is the weather like in Spa in August?
In August, Spa is warm: daytime highs average 21 °C, and nights cool down to about 13 °C. Expect around 6 hours of sunshine a day. Rain is frequent, with about 14 rainy days and 90 mm in total. All in all, August is a good month for a holiday in Spa.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 68 | 70 | 69 |
| Day | 21° | 21° | 18° |
| Night | 13° | 13° | 10° |
| Sun | 7 h | 6 h | 5 h |
| Rain days | 15 | 14 | 12 |
More details for August
- Daylight
- 14 h 35 min06:24 – 20:59
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 1 day30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Brussels
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %53 %
- Few rainy daysweight 30 %30 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Spa in August: quick answers
Is Spa hot in August?
Warm rather than hot: in August, daytime highs in Spa average 21 °C and nights cool to about 13 °C.
Does it rain much in Spa in August?
Rain is frequent, with about 14 rainy days and 90 mm in total.
Spa month by month
The whole year in SpaAll destinations: BelgiumWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences