Reykjavík Weather in September
10.2°C high · 5.3°C low · 74 mm rain · 3.2h sun
Sep is a cool month in Reykjavík — not peak season, but a good time to avoid crowds.
September at a glance
| Metric | Value |
|---|---|
| Average high | 10.2°C |
| Average low | 5.3°C |
| Rainfall | 74 mm |
| Sunshine | 3.2 hours/day |
| Daylight | 12.6 hours |
What to pack in September
Pack a warm coat and layers for Reykjavík in September.
Reykjavík weather by month
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Frequently asked questions
What is the weather in Reykjavík in September?
Highs of 10.2°C and lows of 5.3°C, with about 74 mm of rain and 3.2 hours of sunshine per day.
Is September a good time to visit Reykjavík?
Sep is a cool month in Reykjavík — not peak season, but a good time to avoid crowds.
What to do in Reykjavík · Best time to visit Reykjavík
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.