Is Amsterdam hot in September?
Days are typically mild at 19.2°C, while nights average 11°C.
The Netherlands · 1991–2020 normal
Typical September weather in Amsterdam: 19.2°C by day, 11°C at night, 84 mm of rain over 10.9 wet days. These are measured 1991–2020 station normals, not a forecast.
In the year-round weather comparison, September scores 63 out of 100 (July leads the year at 79). Daylight is calculated as 12 h 35 from latitude 52.37°. Open-water sea temperature is 17.3°C (33 km from the place centre).
September at a glance
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Days are typically mild at 19.2°C, while nights average 11°C.
The measured monthly average is 84 mm across about 11 wet days.
There are about 12 h 35 between sunrise and sunset at mid-month, calculated from the place latitude.
September ranks 4 of 12 in our weather comparison; July ranks first.
The evidence behind this page
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The weather comparison for Amsterdam is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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