Arendal
September
Weather in Arendal for September 2026
Your guide to Arendal weather in September - trends and predictions
In general, the average temperature in Arendal at the beginning of September is 18.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.3 °C by the end of September.
Arendal experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 113.1 mm.
Temperatures
Rain 🌧️
6
Dry days
24
Rainy days
0
Snow days
16°/10°
Temperatures
20 km/h
Avg max wind
79 %
Avg humidity
Arendal Weather September
Move between months or click on a day
Temperatures trend during September in Arendal
See the weather trend as well as the moving average line
September weather in Arendal day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 18° /11° | 6.9 mm | 5 | |
| 2 Sept. |  Sunny | 18° /11° | 4.5 mm | 4 | |
| 3 Sept. |  Light rain shower | 17° /12° | 7.3 mm | 4 | |
| 4 Sept. | Sunny | 20° /14° | 3 mm | 5 | |
| 5 Sept. | Sunny | 21° /13° | 2.2 mm | 5 | |
| 6 Sept. | Patchy rain possible | 19° /12° | 0.3 mm | 5 | |
| 7 Sept. | Sunny | 19° /12° | 0 mm | 5 | |
| 8 Sept. | Patchy rain possible | 19° /13° | 0.9 mm | 4 | |
| 9 Sept. | Overcast | 19° /13° | 1.7 mm | 4 | |
| 10 Sept. | Light rain shower | 19° /12° | 4.9 mm | 5 | |
| 11 Sept. | Light rain shower | 17° /11° | 8 mm | 4 | |
| 12 Sept. |  Partly cloudy | 16° /9° | 5 mm | 4 | |
| 13 Sept. | Sunny | 16° /6° | 6.3 mm | 5 | |
| 14 Sept. | Overcast | 15° /7° | 2.9 mm | 4 | |
| 15 Sept. |  Mist | 16° /9° | 6.9 mm | 4 | |
| 16 Sept. | Light rain shower | 17° /10° | 7.4 mm | 4 | |
| 17 Sept. | Sunny | 17° /9° | 0 mm | 5 | |
| 18 Sept. | Light rain shower | 17° /10° | 12.3 mm | 4 | |
| 19 Sept. | Light rain shower | 17° /11° | 3.1 mm | 4 | |
| 20 Sept. | Light rain shower | 19° /11° | 1.2 mm | 4 | |
| 21 Sept. | Light rain shower | 17° /11° | 5 mm | 4 | |
| 22 Sept. | Light rain shower | 17° /9° | 2.4 mm | 4 | |
| 23 Sept. | Partly cloudy | 16° /7° | 0.2 mm | 4 | |
| 24 Sept. | Patchy rain possible | 14° /8° | 2.8 mm | 4 | |
| 25 Sept. | Light rain shower | 16° /8° | 5.8 mm | 5 | |
| 26 Sept. | Patchy rain possible | 14° /7° | 1.5 mm | 4 | |
| 27 Sept. | Light rain shower | 14° /8° | 4 mm | 3 | |
| 28 Sept. | Light rain shower | 15° /8° | 0.4 mm | 3 | |
| 29 Sept. | Light rain shower | 14° /8° | 3 mm | 4 | |
| 30 Sept. | Light rain shower | 13° /9° | 3.1 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Arendal 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 Arendal forecast closer to your planned date for the most up-to-date weather information.
Change Month
Arendal in September - FAQ
What are the expected maximum and minimum temperatures in Arendal during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Arendal during September?
Significant rainfall exceeding 113.1 mm is expected in Arendal during September, occurring over more than 24 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Arendal during September?
The average wind speed in Arendal during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Arendal
Explore the daily rainfall trends and prepare for Arendals September weather 💧
Typically, Arendal has 24 rainy days in September with a total of 113.1 mm of rainfall.
UV exposure in Arendal during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
More Arendal weather pages
You are here
Where is Arendal?Get accurate weather forecasts for Arendal, located at latitude 58.462 and longitude 8.773. Stay updated with localized weather information tailored for Arendal.
Found a mistake?
We appreciate your attention to details. Tell us here.