La-Roche-en-Ardenne Weather in September
In La-Roche-en-Ardenne, September brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 9°C (48°F). Expect quite a bit of rainfall this month.
Rainfall in La-Roche-en-Ardenne in September
Based on our climate data of the past 30 years, about 16 days of rain are anticipated, with 82 mm (3.2 in) on average. With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in La-Roche-en-Ardenne in September
In September, expect pleasant temperatures in La-Roche-en-Ardenne, with highs of 19°C (66°F) and lows of 9°C (48°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in La-Roche-en-Ardenne in September
The area experiences a moderate amount of sunshine, with approximately 160 hours of sunlight expected. This means a decent mix of sun and overcast.For La-Roche-en-Ardenne itself, June, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
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 La-Roche-en-Ardenne's climate page.
La-Roche-en-Ardenne Temperature in September
Min Temperature
9°C (48°F)
Max Temperature
19°C (66°F)
Chance of Rain
55%
Precipitation
82 mm (3.2 in)
Rainy days
16 days
Humidity
88% *
Sunshine
160 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in La-Roche-en-Ardenne typically stay consistent throughout September, with daily highs averaging around 19°C (66°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°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 La-Roche-en-Ardenne in September
Browse day-by-day weather records for La-Roche-en-Ardenne spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
La-Roche-en-Ardenne historical weather extremes in September
The extremes listed below come from historical weather data collected in La-Roche-en-Ardenne from 1976 through 2025.
- La-Roche-en-Ardenne recorded its highest September temperature of 32°C (90°F) on September 15, 2020.
- The coldest September day was on September 22, 1984, with a maximum of 7°C (45°F).
- La-Roche-en-Ardenne registered its coldest September night on September 30, 2003, with temperatures dropping to 0°C (32°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
pleasant
tolerable
unpleasant
poor
What to Wear in La-Roche-en-Ardenne 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in La-Roche-en-Ardenne 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 La-Roche-en-Ardenne's climate page.
Temperature Rainfall Sunshine Humidity
See the full La-Roche-en-Ardenne climate overview or explore weather in Belgium.
