Iceland climate by month
8-year averages · when to visit| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reykjavík | 2° | 3° | 3° | 7° | 9° | 11° | 13° | 13° | 10° | 6° | 4° | 2° |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reykjavík | 18 | 18 | 16 | 16 | 20 | 16 | 17 | 15 | 18 | 17 | 15 | 17 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reykjavík | 3° | 3° | 4° | 5° | 8° | 10° | 12° | 12° | 11° | 8° | 6° | 4° |
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
Reykjavík climate in September
8-year averages · when to visit
| August | September | October | |
|---|---|---|---|
| Average temperature | ▼ 11°C | 8°C | ▼ 4°C |
| Typical high | ▼ 13°C | 10°C | ▼ 6°C |
| Typical low | ▼ 8°C | 6°C | ▼ 2°C |
| Water temperature | ▼ 12.1°C | 10.5°C | ▼ 8.1°C |
| Precipitation | ▲ 120 mm | 150 mm | ▼ 148 mm |
| Wet days | ▲ 15 d | 18 d | ▼ 17 d |
| Humidity | ▼ 83% | 81% | ▲ 82% |
| Sunshine per day | ▼ 8.0 h | 6.2 h | ▼ 4.3 h |
| Cloud cover | ▲ 51% | 52% | ▲ 56% |
| Midday UV | ▼ 5 | 3 | ▼ 1 |
| Daylight | 16:17 | 13:00 | 9:44 |
| Our take | Poor | Poor | Poor |
September temperatures day by day daily mean + smoothed trend · °C
September precipitation day by day mm
September UV day by day clear-sky midday value
Figures are averaged over 8 years of ERA5 reanalysis; sea temps come from ocean reanalysis, and UV is derived from solar elevation.
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NBM + global weather models
Updated: 12:42 AM
Iceland · 9 weather points · Climate reference: Reykjavík (64.15°N, 21.94°W) · Atlantic/Reykjavik