Hasselt Weather in September
September is one of the perfect months to visit Hasselt, with daytime temperatures of 21°C (70°F) and lows of 11°C (52°F) at night. Do note that quite a bit of rainfall is typical, averaging around 67 mm (2.6 in).
Rainfall in Hasselt in September
On average, there are about 15 days with rain during this month, averaging 67 mm (2.6 in). With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Hasselt in September
September tends to be one of the perfect months in Hasselt, with 21°C (70°F) in the afternoon and 11°C (52°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.
Sunshine in Hasselt in September
With about 152 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Hasselt.
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 Hasselt's climate page.
Hasselt Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
21°C (70°F)
Chance of Rain
50%
Precipitation
67 mm (2.6 in)
Rainy days
15 days
Humidity
83% *
Sunshine
152 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hasselt typically stay consistent throughout September, with daily highs averaging around 21°C (70°F). Nights are cool, with lows typically ranging from 9°C (48°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 Hasselt in September
Browse day-by-day weather records for Hasselt spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hasselt historical weather extremes in September
Based on 49 years of weather observations in Hasselt between 1976 and 2025, these are the recorded extremes.
- Hasselt recorded its highest September temperature of 34°C (93°F) on September 15, 2020.
- Hasselt experienced its chilliest September day on September 17, 1986, reaching only 10°C (50°F).
- Nighttime temperatures dropped to 1°C (34°F) on September 30, 2018, marking the coldest September night on record.
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 Hasselt in September
For Hasselt in September, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Hasselt 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 Hasselt's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hasselt climate overview or explore weather in Belgium.
