Namur Weather in September
Thinking of visiting Namur in September? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 11°C (52°F) at night, and note that quite a bit of rainfall is likely.
Rainfall in Namur in September
The climate data from previous years indicates about 18 days of rain, averaging 67 mm (2.6 in) for the month. Rain is frequent but mostly light this month, with brief showers more common than heavy downpours.
Temperature in Namur in September
Weather in Namur is at its perfect in September. Highs reach 20°C (68°F), while nights settle around 11°C (52°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows of 11°C (52°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Namur in September
You can expect a moderate amount of sunlight, with approximately 150 hours. This means a pleasant mix of sun and overcast.If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit.
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 Namur's climate page.
Namur Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
20°C (68°F)
Chance of Rain
60%
Precipitation
67 mm (2.6 in)
Rainy days
18 days
Sunshine
150 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Namur typically stay consistent throughout September, with daily highs averaging around 20°C (68°F). Nights are cool, with lows typically ranging from 10°C (50°F) to 12°C (54°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 Namur in September
Browse day-by-day weather records for Namur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Namur historical weather extremes in September
According to our 49 years of weather records for Namur, the following extremes were recorded between 1976 and 2025.
- On September 15, 2020, temperatures climbed to 33°C (91°F), marking the warmest September day on record.
- On September 17, 1986, Namur saw its coldest September day with temperatures maxing out at 9°C (48°F).
- The coldest night in September in Namur was on September 30, 2018, with a minimum of 2°C (36°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 Namur 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Namur 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 Namur's climate page.
See the full Namur climate overview or explore weather in Belgium.
