Lillestrøm
September
Weather in Lillestrøm for September 2025
Your guide to Lillestrøm weather in September - trends and predictions
In general, the average temperature in Lillestrøm at the beginning of September is 19.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.3 °C by the end of September.
The climate of Lillestrøm in September is notably wet, with an average of 12 rainy days.
Is September a good time to visit Lillestrøm? check out the best time to travel to Lillestrøm page.
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18
Dry days
12
Rainy days
0
Snow days
16°/9°
Temperatures
15 km/h
Avg max wind
84 %
Avg humidity
Lillestrøm in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  20° | 2 16° | 3  14° | 4  20° | 5 24° | 6  20° | 7  21° |
| 8 21° | 9 18° | 10 18° | 11 16° | 12 15° | 13  14° | 14 14° |
| 15 15° | 16  14° | 17 14° | 18 16° | 19  16° | 20  16° | 21 17° |
| 22 16° | 23 15° | 24 12° | 25 13° | 26 12° | 27 12° | 28 12° |
| 29 12° | 30 13° |
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Access Lillestrøm weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Lillestrøm
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. | Cloudy | 20° /9° | 0 mm | 6 | |
| 2 Sept. | Cloudy | 16° /9° | 4.1 mm | 4 | |
| 3 Sept. | Patchy rain possible | 14° /9° | 2.3 mm | 4 | |
| 4 Sept. | Sunny | 20° /10° | 1 mm | 5 | |
| 5 Sept. | Sunny | 24° /12° | 0 mm | 6 | |
| 6 Sept. | Overcast | 20° /11° | 0 mm | 5 | |
| 7 Sept. | Mist | 21° /10° | 0.3 mm | 6 | |
| 8 Sept. | Fog | 21° /12° | 0 mm | 5 | |
| 9 Sept. | Mist | 18° /12° | 10.4 mm | 5 | |
| 10 Sept. | Mist | 18° /9° | 1.8 mm | 4 | |
| 11 Sept. | Light rain shower | 16° /8° | 0.8 mm | 4 | |
| 12 Sept. | Mist | 15° /6° | 1.4 mm | 4 | |
| 13 Sept. | Partly cloudy | 14° /4° | 0 mm | 4 | |
| 14 Sept. | Overcast | 14° /3° | 0 mm | 4 | |
| 15 Sept. | Fog | 15° /6° | 0 mm | 4 | |
| 16 Sept. | Moderate rain | 14° /9° | 9.8 mm | 3 | |
| 17 Sept. | Mist | 14° /5° | 0 mm | 4 | |
| 18 Sept. | Moderate rain | 16° /7° | 10.8 mm | 4 | |
| 19 Sept. | Moderate or heavy rain shower | 16° /7° | 4.7 mm | 4 | |
| 20 Sept. | Light drizzle | 16° /6° | 0.3 mm | 4 | |
| 21 Sept. | Light rain shower | 17° /11° | 3.6 mm | 4 | |
| 22 Sept. | Light rain shower | 16° /9° | 18.3 mm | 4 | |
| 23 Sept. | Fog | 15° /7° | 0.7 mm | 4 | |
| 24 Sept. | Partly cloudy | 12° /6° | 3.1 mm | 4 | |
| 25 Sept. | Light rain shower | 13° /9° | 8.7 mm | 3 | |
| 26 Sept. | Fog | 12° /6° | 0 mm | 3 | |
| 27 Sept. | Light rain shower | 12° /6° | 5.3 mm | 3 | |
| 28 Sept. | Light rain shower | 12° /5° | 0.8 mm | 3 | |
| 29 Sept. | Patchy rain possible | 12° /4° | 0.1 mm | 4 | |
| 30 Sept. | Patchy rain possible | 13° /3° | 0.2 mm | 4 | |
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Important Notice
Our weather forecast for Lillestrøm 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 Lillestrøm forecast closer to your planned date for the most up-to-date weather information.
Lillestrøm in September - FAQ
What are the expected maximum and minimum temperatures in Lillestrøm during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Lillestrøm during September?
Significant rainfall exceeding 109.2 mm is expected in Lillestrøm during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Lillestrøm during September?
The average wind speed in Lillestrøm during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Lillestrøm in September?
As you prepare for your trip to Lillestrøm 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 Lillestrøm, 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 Lillestrøm
Explore the daily rainfall trends and prepare for Lillestrøms September weather 💧
UV exposure in Lillestrøm during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Lillestrøm?Get accurate weather forecasts for Lillestrøm, located at latitude 59.956 and longitude 11.049. Stay updated with localized weather information tailored for Lillestrøm.
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