Temperature
Cold by day, cold at night.
Cold days and some sun.

Cold by day, cold at night.
Rain is frequent. About 14 wet days this month.
Cloudier spells limit sunshine.
Humidity is rarely noticeable in the cool air.
In February, afternoons feel about 39° and nights feel near 34°.
Mostly cloudy skies this month.
Breezy February days can feel brisker in open spots.
February late afternoons are around 47°F, easing to about 44°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 47 | 39 | 3.6 | 15 | 4.0 | 88 |
| Feb | 49 | 39 | 3.4 | 14 | 5.4 | 85 |
| Mar | 51 | 40 | 3.1 | 13 | 6.9 | 82 |
| Apr | 55 | 42 | 2.8 | 13 | 9.2 | 79 |
| May | 60 | 47 | 3.1 | 15 | 10.1 | 79 |
| Jun | 64 | 51 | 3.1 | 13 | 9.9 | 79 |
| Jul | 66 | 55 | 3.2 | 14 | 8.8 | 82 |
| Aug | 65 | 54 | 3.6 | 16 | 8.4 | 83 |
| Sep | 63 | 51 | 3.2 | 13 | 7.0 | 85 |
| Oct | 57 | 47 | 4.0 | 15 | 5.5 | 87 |
| Nov | 51 | 42 | 4.1 | 16 | 4.2 | 89 |
| Dec | 48 | 40 | 4.1 | 16 | 3.4 | 89 |
Similar climates
Want a side-by-side climate view? Compare Shannon with Aachen.
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: Aug 26, 2026
Data & methodology