Temperature
Cool by day, brisk at night.
Aran Islands is usually most comfortable in May, June, July, and September. Typical daytime highs range from 48–61°F across the year. Rain is frequent in many months.
Cool by day, brisk at night.
It rains on most days. About 20 wet days, the highest monthly average.
Sunshine is limited, with cloud often dominating.
Humidity is rarely noticeable in the cool air.
In November, days and nights feel about the same, around 38°.
Mostly cloudy skies this month.
Wind can affect exposed beach comfort.
November stays around 51°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 48 | 44 | 5.3 | 19 | 4.1 | 80 | 50 |
| Feb | 48 | 44 | 4.5 | 16 | 5.6 | 79 | 50 |
| Mar | 49 | 44 | 3.8 | 14 | 7.4 | 79 | 50 |
| Apr | 51 | 47 | 2.7 | 13 | 9.9 | 79 | 51 |
| May | 55 | 51 | 3.2 | 14 | 11.0 | 80 | 53 |
| Jun | 58 | 55 | 3.5 | 14 | 11.1 | 81 | 56 |
| Jul | 60 | 58 | 4.0 | 16 | 10.1 | 83 | 59 |
| Aug | 61 | 58 | 4.9 | 17 | 9.6 | 82 | 60 |
| Sep | 60 | 56 | 4.7 | 16 | 8.1 | 81 | 59 |
| Oct | 56 | 53 | 6.1 | 19 | 6.2 | 80 | 56 |
| Nov | 52 | 49 | 6.9 | 20 | 4.4 | 80 | 54 |
| Dec | 50 | 46 | 6.6 | 20 | 3.6 | 80 | 52 |
Similar climates
Want a side-by-side climate view? Compare Aran Islands with Aberystwyth.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jul 31, 2026
Data & methodology