What September feels like in Amsterdam
For Amsterdam, September is early autumn on the calendar. Mild afternoons make it easy to spend hours outdoors. Little changes after sunset — nights are cool, only slightly below the daytime level. Moist air is typical, yet it seldom feels heavy at this time of year.
Rain in Amsterdam in September
Expect a mix of dry and wet days, with rain about one day in 3. A rainy day brings about 5.6 mm (0.2 in) on average — steady rain rather than a passing shower. The yearly figure is similar, around 5.5 mm per wet day.
Daylight and sunshine in September
Mid-month, Amsterdam gets 12 h 46 min of daylight, from sunrise near 7:13 am to sunset near 7:59 pm. Evenings are drawing in — 2 h 1 min less daylight than mid-August. Measured sunshine covers about 70% of the daylight — there are plenty of bright spells.
How September compares to the rest of the year
Ranked by average high, September comes out as the 4th warmest month in Amsterdam. Afternoons run 2.5°C (4.5°F) cooler than in August, with 16 mm less rain. The cooling trend carries on into October. The next month's average high: 14.7°C (58.5°F).
Who September suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: a good fit — comfortable for long walks and picnics.
- Beach: less ideal — too many rainy days.
Tips for visiting Amsterdam in September
Rain Protection
A compact umbrella and a light waterproof jacket.
Sunglasses
Plenty of sun, so bring sunglasses and a cap.
Quick questions
How warm is Amsterdam in September?
Expect around 18.7°C (65.7°F) in the afternoon and 12.4°C (54.3°F) at night, which most visitors would call mild.
Does it rain a lot in Amsterdam in September?
It does: about 12 rainy days bring roughly 67 mm, so plan some indoor options.
What should I wear in Amsterdam in September?
Based on the averages: rain protection and sunglasses. There is little need to change for the evening.
Is September or October better for visiting Amsterdam?
September scores better on our climate ranking (#3 of 12 vs #7), rated Good against Good. October is cooler and has more rainy days.