Iceland climate by month
8-year averages · when to visit
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Reykjavík |
36° |
37° |
37° |
45° |
48° |
52° |
55° |
55° |
50° |
43° |
39° |
36° |
| 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 |
37° |
37° |
38° |
40° |
46° |
50° |
54° |
54° |
51° |
47° |
43° |
39° |
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
Photo: Wikimedia
|
August |
September |
October |
| Average temperature |
▼ 52°F |
46°F |
▼ 39°F |
| Typical high |
▼ 55°F |
50°F |
▼ 43°F |
| Typical low |
▼ 46°F |
43°F |
▼ 36°F |
| Water temperature |
▼ 54°F |
51°F |
▼ 47°F |
| Precipitation |
▲ 4.7 in |
5.9 in |
▼ 5.8 in |
| 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 · °F
September precipitation day by day in
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.
More destinations in Europe
Iceland · 9 weather points · Climate reference: Reykjavík (64.15°N, 21.94°W) · Atlantic/Reykjavik