Bilthoven Weather in September

September in Bilthoven typically sees daytime highs of 20°C (68°F) and nighttime lows of 11°C (52°F). Rainfall is also possible this month, so it's worth packing an umbrella.

Rainfall in Bilthoven in September

You can expect rain on around 16 days based on historical patterns, with 75 mm (3 in) average for the month. Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Bilthoven in September

September tends to be one of the excellent months in Bilthoven, with 20°C (68°F) in the afternoon and 11°C (52°F) overnight. Even when the weather is stable, mornings and evenings can still feel distinctly cool. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Bilthoven in September

The city usually sees around 155 hours of sunlight, indicating a moderately sunny period.

Wind Speed in Bilthoven in September

September has wind speeds averaging 3 m/s (6 knots). You can expect comfortable light winds that steadily move flags and feel mild throughout the day. Since this is an average, daily conditions vary from gentle winds to more active breezes.

If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Bilthoven.