Francorchamps Weather in September
September in Francorchamps averages 18°C (64°F) during the day and 10°C (50°F) at night. Quite a bit of rainfall is typical this month, with around 86 mm (3.4 in) on average. An umbrella is a good idea.
Rainfall in Francorchamps in September
Typically around 17 days of rainfall are expected, averaging 86 mm (3.4 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Francorchamps in September
In September, expect pleasant temperatures in Francorchamps, with highs of 18°C (64°F) and lows of 10°C (50°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 10°C (50°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Francorchamps in September
The month brings about 160 hours of sunlight, offering a comfortable mix of sun and overcast.
Wind Speed in Francorchamps in September
September sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Francorchamps.
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 Francorchamps's climate page.
Francorchamps Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
18°C (64°F)
Chance of Rain
58%
Precipitation
86 mm (3.4 in)
Rainy days
17 days
Humidity
88% *
Windspeed
4 m/s (8 knots) *
Sunshine
160 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Francorchamps typically stay consistent throughout September, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 10°C (50°F).
Average temperatures in September
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 September
Historical weather for Francorchamps in September
Browse day-by-day weather records for Francorchamps spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Francorchamps historical weather extremes in September
According to our 49 years of weather records for Francorchamps, the following extremes were recorded between 1976 and 2025.
- The warmest day in September was on September 15, 2020, with a maximum of 30°C (86°F).
- Francorchamps experienced its chilliest September day on September 25, 2025, reaching only 7°C (45°F).
- Francorchamps registered its coldest September night on September 28, 1987, with temperatures dropping to -1°C (30°F).
Best Places in Belgium in September
Find out more about the weather in Belgium and which places have the best travel conditions in this month. See all of Belgium in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Francorchamps in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Francorchamps in September
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 Francorchamps's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Francorchamps climate overview or explore weather in Belgium.
