Weather in Trøndelag for September 2025
In general, the average temperature in Trøndelag at the beginning of September is 17.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10.6 °C by the end of September.
Trøndelag experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
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Trøndelag in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 16° | 2 16° | 3 14° | 4 17° | 5 17° | 6 20° | 7 22° |
8 21° | 9 21° | 10 11° | 11 18° | 12 13° | 13 11° | 14 13° |
15 16° | 16 12° | 17 14° | 18 18° | 19 16° | 20 14° | 21 14° |
22 13° | 23 11° | 24 10° | 25 11° | 26 13° | 27 11° | 28 11° |
29 9° | 30 9° |
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Temperatures trend during September in Trøndelag
September weather day by day
Date | Weather | Temperatures | Rain | Snow | More |
---|---|---|---|---|---|
1 Sept. | Mist | 16° /6° | 0.3 mm | 0 cm | |
2 Sept. | Cloudy | 16° /7° | 0.1 mm | 0 cm | |
3 Sept. | Light drizzle | 14° /7° | 0.8 mm | 0 cm | |
4 Sept. | Light rain shower | 17° /11° | 9.3 mm | 0 cm | |
5 Sept. | Light rain shower | 17° /10° | 11.1 mm | 0 cm | |
6 Sept. | Overcast | 20° /10° | 0.5 mm | 0 cm | |
7 Sept. | Overcast | 22° /11° | 0 mm | 0 cm | |
8 Sept. | Overcast | 21° /11° | 0.1 mm | 0 cm | |
9 Sept. | Partly cloudy | 21° /9° | 6.3 mm | 0 cm | |
10 Sept. | Light rain shower | 11° /9° | 15.9 mm | 0 cm | |
11 Sept. | Light rain shower | 18° /8° | 4.5 mm | 0 cm | |
12 Sept. | Partly cloudy | 13° /6° | 4.4 mm | 0 cm | |
13 Sept. | Overcast | 11° /4° | 0.2 mm | 0 cm | |
14 Sept. | Overcast | 13° /2° | 0 mm | 0 cm | |
15 Sept. | Partly cloudy | 16° /4° | 0 mm | 0 cm | |
16 Sept. | Light rain shower | 12° /5° | 1.5 mm | 0 cm | |
17 Sept. | Partly cloudy | 14° /6° | 0.5 mm | 0 cm | |
18 Sept. | Partly cloudy | 18° /7° | 0.2 mm | 0 cm | |
19 Sept. | Light rain shower | 16° /9° | 5.2 mm | 0 cm | |
20 Sept. | Light rain shower | 14° /8° | 1.3 mm | 0 cm | |
21 Sept. | Light rain | 14° /7° | 2.8 mm | 0 cm | |
22 Sept. | Moderate rain | 13° /7° | 6.2 mm | 0 cm | |
23 Sept. | Light rain shower | 11° /7° | 4.7 mm | 0 cm | |
24 Sept. | Patchy rain possible | 10° /5° | 1.6 mm | 0 cm | |
25 Sept. | Patchy light drizzle | 11° /5° | 13.7 mm | 0 cm | |
26 Sept. | Sunny | 13° /6° | 1.7 mm | 0 cm | |
27 Sept. | Light rain shower | 11° /5° | 4.7 mm | 0 cm | |
28 Sept. | Patchy rain possible | 11° /4° | 11 mm | 1.2 cm | |
29 Sept. | Light rain shower | 9° /5° | 6.2 mm | 0 cm | |
30 Sept. | Light rain shower | 9° /3° | 3 mm | 0 cm | |
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Trøndelag in September - FAQ
What to pack to Trøndelag in September?
As you prepare for your trip to Trøndelag 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 Trøndelag, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- 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
September rainfall patterns in Trøndelag
September snowfall in Trøndelag
UV exposure in Trøndelag during September
Quick links
Get accurate weather forecasts for Trøndelag, located at latitude 63.43 and longitude 10.395. Stay updated with localized weather information tailored for Trøndelag.