Rendeux Weather in September
Rendeux in September sees pleasant temperatures, with highs around 19°C (66°F) and overnight lows of 10°C (50°F). Rainfall is fairly high at around 79 mm (3.1 in) on average, so pack waterproofs just in case.
Rainfall in Rendeux in September
The climate data from previous years indicates about 16 days of rain, averaging 79 mm (3.1 in) for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Rendeux in September
Rendeux in September gets highs of 19°C (66°F) during the day and drops to 10°C (50°F) at night. The difference between afternoon and evening temperatures is usually noticeable. 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 Rendeux in September
The month brings about 160 hours of sunlight, offering a comfortable mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July and August typically offer the best weather for Rendeux.
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 Rendeux's climate page.
Rendeux Temperature in September
Min Temperature
10°C (50°F)
Max Temperature
19°C (66°F)
Chance of Rain
54%
Precipitation
79 mm (3.1 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 Rendeux 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 Rendeux in September
Browse day-by-day weather records for Rendeux spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Rendeux historical weather extremes in September
According to our 49 years of weather records for Rendeux, the following extremes were recorded between 1976 and 2025.
- On September 15, 2020, temperatures climbed to 32°C (90°F), marking the warmest September day on record.
- The coldest September day was on September 22, 1984, with a maximum of 7°C (45°F).
- The coldest night in September in Rendeux was on September 30, 2003, with a minimum of 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 Rendeux 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. Rain gear is recommended, you can expect wet weather on multiple days. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Rendeux 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 Rendeux's climate page.
Temperature Rainfall Sunshine Humidity
See the full Rendeux climate overview or explore weather in Belgium.
