Wassenaar Weather in September

With daytime temperatures of 19°C (66°F) and nighttime lows of 13°C (55°F), September in Wassenaar brings pleasant temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 95 mm (3.7 in) falls on average.

Rainfall in Wassenaar in September

Historically, September sees about 16 days of rain, with a monthly average of 95 mm (3.7 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Wassenaar in September

If you're visiting Wassenaar in September, expect highs of 19°C (66°F) and overnight lows around 13°C (55°F). September is typically considered a summer month. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows of 13°C (55°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 Wassenaar in September

The area enjoys a balanced 144 hours of sunlight, ensuring it's neither too overcast nor too sunny.

Wind Speed in Wassenaar in September

Average wind conditions reach 5 m/s (10 knots) in September. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Wassenaar.

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

Wassenaar Temperature in September

Min Temperature 13°C (55°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 52%  

Precipitation 95 mm (3.7 in)  

Rainy days 16 days  

Humidity 82% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 144 hours *  

Percentage Sunshine 37% *  

* Data from: Valkenburg, the Netherlands (4 KM, 2 Miles).

What to Wear in Wassenaar in September

For Wassenaar 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. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Wassenaar in September

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

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

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 the Netherlands, check out our Wassenaar's climate page.

More climate data for Wassenaar

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Wassenaar climate overview or explore weather in the Netherlands.