What September feels like in Stockholm
For Stockholm, September is early autumn on the calendar. Days are on the cool side, the kind of weather that suits brisk sightseeing. There is little difference between day and night: nights are cool, and evenings feel much like the afternoon. Damp air makes the cold feel rawer than the numbers alone suggest.
Rain in Stockholm in September
Expect a mix of dry and wet days, with rain about one day in 3. Each rainy day adds about 5.7 mm (0.2 in), a proper wetting rather than a sprinkle. That is close to Stockholm's typical rain per wet day for the whole year (about 5.1 mm).
Daylight and sunshine in September
Mid-month, Stockholm gets 12 h 58 min of daylight, from sunrise near 6:14 am to sunset near 7:12 pm. Days are getting shorter: 2 h 40 min less daylight than in mid-August. The sun is out for roughly 67% of those daylight hours, so there are plenty of bright spells.
How September compares to the rest of the year
September is the 4th warmest month of the year in Stockholm. Compared with August, afternoons are 4.2°C (7.6°F) cooler, with 27 mm less rain. Temperatures keep falling into October. By October, typical highs are 10.2°C (50.4°F).
Who September suits
- Sightseeing: a good fit — daytime temperatures are fine for walking around.
- Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
- Beach: less ideal — the sea air is too cool.
Tips for visiting Stockholm in September
Rain Protection
Keep a small umbrella in your bag and wear shoes that cope with puddles.
Light Jacket
A light jacket or knit layer is enough for most of the day.
Sunglasses
Frequent sunshine — sunglasses and a light hat.
Quick questions
How warm is Stockholm in September?
Afternoons average 16.2°C (61.2°F) and nights about 10.3°C (50.5°F) — cool by most people's standards. It is the 4th warmest month of the year.
Does it rain a lot in Stockholm in September?
Yes, fairly — rain falls about one day in 3 and totals about 51 mm, so an umbrella is worth carrying.
What should I wear in Stockholm in September?
The numbers point to rain protection, a light jacket and sunglasses. There is little need to change for the evening.
Is September or October better for visiting Stockholm?
September, clearly: it ranks #2 of 12 among Stockholm's months, against #7 for the other. October is cooler and has more rainy days.