Stockholm
September
Weather in Stockholm for September 2025
Your guide to Stockholm weather in September - trends and predictions
In general, the average temperature in Stockholm at the beginning of September is 20.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.3 °C by the end of September.
Stockholm sees moderate rainfall in September, averaging 6 rainy days.
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24
Dry days
6
Rainy days
0
Snow days
19°/11°
Temperatures
17 km/h
Avg max wind
76 %
Avg humidity
Stockholm in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  18° | 2  18° | 3 19° | 4  23° | 5  24° | 6 21° | 7  23° |
| 8 23° | 9 23° | 10 22° | 11 19° | 12 19° | 13 15° | 14 16° |
| 15 18° | 16 19° | 17 17° | 18 17° | 19 20° | 20 19° | 21 20° |
| 22 18° | 23 18° | 24 18° | 25 17° | 26  17° | 27 18° | 28 15° |
| 29 14° | 30 15° |
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Temperatures trend during September in Stockholm
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Heavy rain | 18° /10° | 17.8 mm | 4 | |
| 2 Sept. | Light rain shower | 18° /10° | 0.4 mm | 4 | |
| 3 Sept. | Patchy rain possible | 19° /10° | 0.1 mm | 5 | |
| 4 Sept. | Fog | 23° /12° | 0 mm | 5 | |
| 5 Sept. | Overcast | 24° /14° | 0.1 mm | 6 | |
| 6 Sept. | Overcast | 21° /12° | 0.1 mm | 5 | |
| 7 Sept. | Partly cloudy | 23° /11° | 0 mm | 6 | |
| 8 Sept. | Partly cloudy | 23° /14° | 0 mm | 6 | |
| 9 Sept. | Overcast | 23° /15° | 0 mm | 5 | |
| 10 Sept. | Overcast | 22° /13° | 2 mm | 5 | |
| 11 Sept. | Mist | 19° /11° | 5.1 mm | 4 | |
| 12 Sept. | Overcast | 19° /10° | 0 mm | 5 | |
| 13 Sept. | Overcast | 15° /10° | 0 mm | 4 | |
| 14 Sept. | Partly cloudy | 16° /6° | 0 mm | 5 | |
| 15 Sept. | Overcast | 18° /7° | 0 mm | 4 | |
| 16 Sept. | Partly cloudy | 19° /10° | 0 mm | 5 | |
| 17 Sept. | Overcast | 17° /9° | 0.1 mm | 5 | |
| 18 Sept. | Overcast | 17° /8° | 0 mm | 4 | |
| 19 Sept. | Light rain shower | 20° /11° | 3.1 mm | 5 | |
| 20 Sept. | Patchy rain possible | 19° /11° | 1.9 mm | 5 | |
| 21 Sept. | Partly cloudy | 20° /12° | 0 mm | 6 | |
| 22 Sept. | Patchy rain possible | 18° /13° | 0.2 mm | 4 | |
| 23 Sept. | Patchy rain possible | 18° /11° | 0.5 mm | 4 | |
| 24 Sept. | Patchy rain possible | 18° /10° | 0 mm | 5 | |
| 25 Sept. | Overcast | 17° /10° | 1.5 mm | 4 | |
| 26 Sept. | Cloudy | 17° /10° | 6 mm | 4 | |
| 27 Sept. | Patchy rain possible | 18° /10° | 10.1 mm | 5 | |
| 28 Sept. | Cloudy | 15° /8° | 1.6 mm | 4 | |
| 29 Sept. | Patchy rain possible | 14° /8° | 0 mm | 4 | |
| 30 Sept. | Patchy rain possible | 15° /7° | 0.1 mm | 4 | |
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Important Notice
Our weather forecast for Stockholm in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Stockholm forecast closer to your planned date for the most up-to-date weather information.
Stockholm in September - FAQ
What are the expected maximum and minimum temperatures in Stockholm during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Stockholm during September?
In September, Stockholm can expect light to moderate rainfall, totaling 48 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Stockholm during September?
The average wind speed in Stockholm during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Stockholm in September?
As you prepare for your trip to Stockholm in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Stockholm, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
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