Reykjavik · AutumnMonth summary
Reykjavik weather in September
❌ Poor
🌡️ Temperature min / max
43°F – 52°F
🌧 Rainy days
60% of days
☀️ Sunshine
6.4h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
3.3/10
📅 📅 Best month
July (4.7/10)
Quick decision
Should you visit Reykjavik in September?
❌ Poor
✅ Yes if: you prefer off-season travel with reduced prices and very few tourists.
❌ No if: you want to avoid rain — more than half the days are rainy.
Our take: September is a difficult time for Reykjavik. July (4.7/10) is much more favourable.
By trip type
Reykjavik in September by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in September
Autumn marks the end of peak season in Reykjavik. Temperatures drop (11°F) and rain returns (60% of days). With 60% of rainy days, always have indoor alternatives planned.
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All months for Reykjavik
Annual table
Month-by-month comparison
| Month | Min °F | Max °F | Rain % | Precip in | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌨️ January | 28°F | 36°F | 59% | 0.2in | 0.1h | 0.5/10 |
| 🌨️ February | 28°F | 37°F | 63% | 0.2in | 2.6h | 0.7/10 |
| 🌨️ March | 30°F | 39°F | 53% | 0.2in | 6.3h | 2.1/10 |
| 🌦️ April | 36°F | 45°F | 54% | 0.2in | 7.6h | 3.1/10 |
| 🌦️ May | 39°F | 48°F | 60% | 0.2in | 9.4h | 4.0/10 |
| 🌦️ June | 45°F | 52°F | 53% | 0.1in | 8.6h | 4.2/10 |
| 🌦️ July | 48°F | 55°F | 51% | 0.1in | 8.9h | 4.7/10 |
| 🌦️ August | 48°F | 55°F | 46% | 0.1in | 8.5h | 4.7/10 |
| 🌦️ September | 43°F | 52°F | 60% | 0.2in | 6.4h | 3.3/10 |
| 🌦️ October | 37°F | 45°F | 58% | 0.2in | 4.0h | 1.4/10 |
| 🌨️ November | 34°F | 39°F | 50% | 0.2in | 1.0h | 0.9/10 |
| 🌨️ December | 28°F | 37°F | 57% | 0.2in | 0.0h | 0.6/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Reykjavik averages 52°F, 60% rainy days and 6.4h of sunshine per day. Overall weather score: 3.3/10.
See methodology →
Comparison
September vs July (best month)
The best month is July (score 4.7/10). Difference:
- 🌡️ Max temperature : +2°F
- 🌧 Rainy days : -9%
- ☀️ Sunshine : +2.5h/day
FAQ
FAQ — Reykjavik in September
Is September a good time to visit Reykjavik?
September is not recommended for Reykjavik (score 3.3/10). With 60% rainy days and 6.4h of sunshine, consider July (4.7/10) instead.
Does it rain a lot in Reykjavik in September?
Yes, 60% of days see rain in September. Plan some indoor activities as backup.
Accommodation
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Activities & tours
Activities and tours in Reykjavik
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