Grimbergen Weather in September

Thinking of visiting Grimbergen in September? Expect pleasant temperatures reaching 21°C (70°F) during the day, dropping to 11°C (52°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Grimbergen in September

Records from the past 30 years suggest around 16 days of rain, with 61 mm (2.4 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 Grimbergen in September

If you're visiting Grimbergen in September, expect excellent temperatures with highs of 21°C (70°F) and overnight lows of 11°C (52°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. 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 Grimbergen in September

The month experiences a moderate amount of sunlight, with 142 hours of sunshine. This provides a nice balance between sunshine and clouds.

Wind Speed in Grimbergen in September

Wind speeds average 3 m/s (6 knots) during September. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

If you're inclined towards comfortable temperatures and drier conditions, September is a good time to visit Grimbergen.