Weather in Reykjavik in September
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youIn September, Reykjavik sees average highs of 10.2°C (50.4°F) and lows of 5.9°C. Conditions are cold and very wet, with around 18 rainy days, with roughly 5.8 hours of sunshine a day. Weather-wise, this is one of the most reliable months to travel. For the complete picture, see the best time to visit Reykjavik — every month compared. Once you know when to go, find your Reykjavik packing list at 247PackingList.
Get ready for Reykjavik in September
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Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →What to pack for Reykjavik in September
- Warm layers
- Light jacket or fleece
- Comfortable walking shoes
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Reykjavik
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 1.5°C | 159.7mm | 7/10 |
| February | 2.3°C | 160.2mm | 7/10 |
| March | 2.7°C | 138.1mm | 7/10 |
| April | 6.2°C | 143.9mm | 9/10 |
| May | 8.6°C | 131.4mm | 9/10 |
| June | 11.1°C | 112.0mm | 9/10 |
| July | 12.9°C | 64.0mm | 10/10 |
| August | 13.3°C | 122.4mm | 9/10 |
| September | 10.2°C | 154.2mm | 9/10 |
| October | 6.7°C | 135.1mm | 9/10 |
| November | 4.5°C | 123.7mm | 7/10 |
| December | 1.0°C | 114.3mm | 7/10 |
Full month-by-month guide: best time to visit Reykjavik →
For facts about Iceland — currency, language and dialling code — see our Iceland country guide at 247CountryInfo. Travellers also find it useful to keep a Reykjavik travel guide to hand. Check clothing sizes in Iceland before you shop.
Frequently Asked Questions
Is September a good time to visit Reykjavik?
September rates 9/10 for visiting Reykjavik — excellent time to visit. Expect average highs of 10.2°C, 154.2mm of rain across the month and about 5.8 hours of daily sunshine.
What is the temperature in Reykjavik in September?
In September, Reykjavik has average highs of 10.2°C (50.4°F) and average lows of 5.9°C (42.6°F).
Does it rain in Reykjavik in September?
Yes — September is one of the wetter months in Reykjavik, averaging 154.2mm of rain over roughly 18 rainy days. Pack for heavy showers.
What should I wear in Reykjavik in September?
For Reykjavik in September (10.2°C highs / 5.9°C lows), pack warm layers plus light jacket or fleece, comfortable walking shoes, compact travel umbrella.
More essentials for Reykjavik in September
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
Check Price →Travel first aid kit
Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.