Rotterdam Weather in September
Netherlands · 30-year monthly averages
👍 Good time to visit
September in Rotterdam is pleasantly warm, with average daytime highs around 19°C (67°F) and nighttime lows near 11°C (51°F). Expect roughly 90mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
Avg high
19°C
67°F
Avg low
11°C
51°F
Rainfall
90mm
moderate
Rainy days
11
days with ≥1mm
☀️ About 153 hours of sunshine over the month (~5h/day).
🎒 What to pack
- light layers
- comfortable walking shoes
September vs the rest of the year
FAQ
- How hot is Rotterdam in September?
- September in Rotterdam is pleasantly warm, with average daytime highs around 19°C (67°F) and nighttime lows near 11°C (51°F). Expect roughly 90mm of precipitation spread over about 11 rainy days, with a moderate amount of rain.
- Does it rain a lot in Rotterdam in September?
- Rotterdam sees around 90mm of precipitation in September on average — moderate by global standards.
- Is September a good time to visit Rotterdam?
- September is a good month to visit Rotterdam, with generally agreeable conditions.