Iceland (CA)
September
Weather in Iceland, California for September 2027
Your guide to Iceland weather in September - trends and predictions
In general, the average temperature in Iceland at the beginning of September is 21.1 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 19.5 °C by the end of September.
With an average of 2 rainy days, Iceland experiences minimal rainfall in September.
Is September a good time to visit Iceland? check out the best time to travel to Iceland page.
✨ Is September a good time to visit Iceland? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
28
Dry days
2
Rainy days
0
Snow days
19°/8°
Temperatures
17 km/h
Avg max wind
48 %
Avg humidity
Iceland Weather September
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Temperatures trend during September in Iceland
See the weather trend as well as the moving average line
September weather in Iceland day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 22° /10° | 0 mm | 7 | |
| Sept. 2 | Sunny | 19° /10° | 0 mm | 5 | |
| Sept. 3 |  Partly cloudy | 21° /8° | 0.5 mm | 7 | |
| Sept. 4 | Sunny | 21° /10° | 0.6 mm | 5 | |
| Sept. 5 | Sunny | 23° /10° | 0 mm | 8 | |
| Sept. 6 | Sunny | 21° /10° | 0.3 mm | 7 | |
| Sept. 7 |  Overcast | 20° /8° | 0 mm | 7 | |
| Sept. 8 | Sunny | 21° /8° | 0 mm | 7 | |
| Sept. 9 | Sunny | 19° /8° | 0 mm | 4 | |
| Sept. 10 | Overcast | 18° /9° | 0.3 mm | 4 | |
| Sept. 11 | Sunny | 17° /7° | 0 mm | 7 | |
| Sept. 12 | Sunny | 18° /6° | 0 mm | 7 | |
| Sept. 13 | Sunny | 18° /7° | 0 mm | 7 | |
| Sept. 14 | Sunny | 20° /6° | 0 mm | 7 | |
| Sept. 15 | Sunny | 19° /7° | 0 mm | 7 | |
| Sept. 16 | Sunny | 17° /7° | 0.7 mm | 6 | |
| Sept. 17 | Overcast | 15° /7° | 0 mm | 6 | |
| Sept. 18 |  Moderate or heavy rain shower | 15° /8° | 9.4 mm | 6 | |
| Sept. 19 |  Light rain | 15° /7° | 6.6 mm | 5 | |
| Sept. 20 | Sunny | 18° /9° | 0 mm | 4 | |
| Sept. 21 |  Patchy rain possible | 19° /9° | 0 mm | 4 | |
| Sept. 22 | Sunny | 20° /9° | 0.2 mm | 6.6 | |
| Sept. 23 | Sunny | 22° /10° | 0 mm | 6.5 | |
| Sept. 24 | Sunny | 23° /11° | 0 mm | 6.4 | |
| Sept. 25 | Patchy rain possible | 19° /9° | 1.2 mm | 5 | |
| Sept. 26 | Sunny | 21° /8° | 0 mm | 4 | |
| Sept. 27 | Sunny | 20° /9° | 0.2 mm | 5 | |
| Sept. 28 | Sunny | 18° /8° | 0 mm | 6 | |
| Sept. 29 | Sunny | 19° /8° | 0 mm | 5.9 | |
| Sept. 30 | Overcast | 18° /8° | 0 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Iceland 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 Iceland forecast closer to your planned date for the most up-to-date weather information.
Change Month
Iceland in September - FAQ
What are the expected maximum and minimum temperatures in Iceland during September?
Enjoy moderate daytime temperatures of up to 19° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Iceland during September?
In September, Iceland can expect light to moderate rainfall, totaling 20 mm across approximately 2 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Iceland during September?
The average wind speed in Iceland during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Iceland
Explore the daily rainfall trends and prepare for Icelands September weather 💧
Typically, Iceland has 2 rainy days in September with a total of 20 mm of rainfall.
UV exposure in Iceland during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Quick links
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