Overijse Weather in September

Thinking of visiting Overijse 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 Overijse in September

You can expect rain on around 15 days based on historical patterns, with 63 mm (2.5 in) average for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.

Temperature in Overijse in September

Weather in Overijse is at its perfect in September. Highs reach 20°C (68°F), while nights settle around 11°C (52°F). Conditions are often most pleasant around the middle of the day. 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 Overijse in September

The month experiences a moderate amount of sunlight, with 143 hours of sunshine. This provides a nice balance between sunshine and clouds.

Wind Speed in Overijse in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Overijse.

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For a detailed overview over the year and the best time to visit Belgium, check out our Overijse's climate page.

Overijse Temperature in September

Min Temperature 11°C (52°F)  

Max Temperature 20°C (68°F)  

Chance of Rain 50%  

Precipitation 63 mm (2.5 in)  

Rainy days 15 days  

Humidity 82% *  

Windspeed 3 m/s (6 knots) *  

Sunshine 143 hours *  

Percentage Sunshine *  

* Data from: Ukkel, Belgium (13 KM, 8 Miles).

What to Wear in Overijse in September

For Overijse 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. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Overijse in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Belgium, check out our Overijse's climate page.

More climate data for Overijse

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Overijse climate overview or explore weather in Belgium.