Climate
Weather in Iceland in September
Weather in Iceland, September
In September, Iceland sees average highs of 10.4°C (51°F) and lows of 5.9°C (43°F), with around 147 mm of rain.
Iceland — September
Iceland → September
- Daytime high
- 10.4°C (51°F)
- Overnight low
- 5.9°C (43°F)
- Rainfall
- 147 mm
- Best-time rank
- Off-peak
How September compares
| This month | 10.4°C (51°F) / 5.9°C (43°F) · 147 mm |
|---|---|
| Yearly average | 6.9°C (44°F) / 2.4°C (36°F) · 132 mm |
September in Iceland runs 3.5°C (6.3°F) warmer than the yearly average, and is wetter than the yearly average. Pack a warm jacket for cooler conditions, and something waterproof — this is a wetter month.
Common questions
What is the weather like in Iceland in September?
Average highs of 10.4°C (51°F) and lows of 5.9°C (43°F), with around 147 mm of rain.
Is September a good time to visit Iceland?
It is an off-peak month for comfort in Iceland; June, July, August tend to be more pleasant.
Updated climate normals, 2025