Temperature
Cold by day, cold at night.
Cold days.
Cold by day, cold at night.
Rain is frequent. About 14 wet days, the lowest monthly average.
Sunshine is limited, with cloud often dominating.
Humidity is rarely noticeable in the cool air.
In March, afternoons feel about 40° and nights feel near 33°.
Mostly cloudy skies this month.
Breezy March days can feel brisker in open spots.
March late afternoons are around 48°F, easing to about 45°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 46 | 39 | 3.6 | 16 | 1.8 | 84 | 48 |
| Feb | 47 | 39 | 3.1 | 14 | 3.0 | 83 | 46 |
| Mar | 49 | 40 | 2.9 | 14 | 4.0 | 81 | 46 |
| Apr | 54 | 42 | 2.8 | 14 | 5.9 | 78 | 48 |
| May | 59 | 47 | 2.9 | 15 | 7.2 | 78 | 51 |
| Jun | 63 | 52 | 3.1 | 14 | 7.0 | 80 | 55 |
| Jul | 66 | 55 | 3.1 | 16 | 6.4 | 81 | 58 |
| Aug | 65 | 55 | 3.2 | 16 | 6.0 | 83 | 60 |
| Sep | 63 | 52 | 3.4 | 14 | 4.7 | 83 | 60 |
| Oct | 57 | 48 | 4.1 | 16 | 3.3 | 84 | 58 |
| Nov | 51 | 44 | 4.3 | 17 | 2.2 | 84 | 54 |
| Dec | 47 | 40 | 4.3 | 17 | 1.6 | 85 | 51 |
Similar climates
Want a side-by-side climate view? Compare Anglesey 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: Aug 16, 2026
Data & methodology