Temperature
Cool by day, cold at night.
Cool days.

Cool by day, cold at night.
Rain is frequent. About 16 wet days, the highest monthly average.
Sunshine is limited, with cloud often dominating.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 43° and nights feel near 39°.
Mostly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 49°F, easing to about 47°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