Do a pub crawl in Antwerp
You can visit Antwerp year round however May through September is the best time to go to Antwerp for a pub crawl. Late spring is recommended for its long days.
Mons Weather in September
September in Mons averages 20°C (68°F) during the day and 11°C (52°F) at night. Quite a bit of rainfall is typical this month, with around 60 mm (2.4 in) on average. An umbrella is a good idea.
Rainfall in Mons in September
Typically, you can expect about 15 days of rain this month, with 60 mm (2.4 in) on average. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.
Temperature in Mons in September
The excellent temperature in Mons in September makes it a solid month to visit, with 20°C (68°F) during the day and 11°C (52°F) at night. Conditions are often most pleasant around the middle of the day. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Mons in September
The month experiences a moderate amount of sunlight, with 143 hours of sunshine. This provides a nice balance between sunshine and clouds.If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Mons.
Mons Temperature in September
Min Temperature
11°C (52°F)
Max Temperature
20°C (68°F)
Chance of Rain
51%
Precipitation
60 mm (2.4 in)
Rainy days
15 days
Humidity
82% *
Sunshine
143 hours *
Percentage Sunshine
*
* Data from: Ukkel, Belgium (47 KM, 29 Miles).
Mons Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mons - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mons 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 records for Mons in September
Browse day-by-day weather records for Mons spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mons historical weather extremes in September
Our historical data for Mons spans 1976 to 2026, revealing these weather extremes.
- On September 15, 2020, temperatures climbed to 34°C (93°F), marking the warmest September day on record.
- The lowest daytime temperature in September was 10°C (50°F), recorded on September 22, 1984.
- The coldest night in September in Mons was on September 23, 1979, with a minimum of 1°C (34°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
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Mons in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Mons in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Swimming6/10 -
Cycling10/10 -
Walking10/10 -
Camping8/10 -
Outdoor sports10/10
Mons 3-Day Forecast
More climate data for Mons
Temperature Rainfall Sunshine Humidity
See the full Mons climate overview or explore weather in Belgium.
Popular in September
Where to go in September - average daytime high across popular destinations.
Ghent
21°C (70°F) Brussels21°C (70°F) Antwerp21°C (70°F) Bruges20°C (68°F) Blankenberge
20°C (68°F) Knokke-Heist20°C (68°F) Durbuy19°C (66°F) Ostend19°C (66°F) Bucket list
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