Average weather for Spa in August
It's pleasantly warm in August in Spa with an average temperature of 22°C. Temperatures this month range from a low of 19°C to a high of 24°C. At night, you can expect temperatures between 12°C and 15°C.
Start of August
The month of August starts in Spa with warm temps, averaging around 23°C during the day and nights around 14°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid August
By mid-August, daytime temps drop to around 22°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of August
By the end of August, the average daytime temperature in Spa is around 22°C, while nighttime temps are about 13°C. A shower might pop up, but overall, the weather will be dry and sunny.
In August, there is an average of 102 mm of precipitation, spread over 15 days. The wind speed is around 3 Bft, mostly coming from the South.
Spa in August |
New York | ||
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22°C | 30°C | |
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24°C | 31°C | |
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19°C | -5°C | |
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102 mm | 79 mm | |
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15 days | 13 days |
UV index
The UV index is a maximum of 5 this month. That's a moderate value on the intensity scale of 1 to 11. Unprotected skin can burn in about 30 minutes.
Is August a good time to visit Spa?
Looking for sun? August isn’t a good month to be in Spa. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 34°C in 2018, Spa reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 11°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 22°C.
Check out the climate of Spa for all months and discover the best travel time
Curious about the weather in other parts of Belgium? Check out the climate and weather for spots like Ardennes, Bruges, Antwerp, or explore other destinations in Belgium.
Daily Temperature in August in Spa
This chart shows the average daily high and low temperatures in August for Spa, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Spa
The chart below shows the average daily precipitation in August for Spa, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 15 days of precipitation in Spa.
Daily UV index in August in Spa
This chart shows the average daily UV index in August in Spa, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in August in Spa over the years
This chart shows the average temperature in August in Spa, measured in degrees Celsius, over the past few years.
Total precipitation in August in Spa over the years
This chart shows the average precipitation in August in Spa, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for Spa
Click on any day in August to get detailed info about the usual weather on that day in Spa. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in August in Spa
Have you been to Spa in August?
Share your weather experience in August in Spa.
Average weather in Spa by month
Click on a month below to see detailed weather info for Spa. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.