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

Cold by day, cold at night.
Several rainy days. About 13 wet days, the lowest monthly average.
A mix of sunshine and cloud.
Humidity is rarely noticeable in the cool air.
In March, afternoons feel about 41° and nights feel near 34°.
Mostly cloudy skies this month.
Calm winds are typical in March.
March late afternoons are around 49°F, easing to about 45°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 46 | 38 | 2.8 | 14 | 3.5 | 88 |
| Feb | 47 | 38 | 2.5 | 13 | 5.0 | 85 |
| Mar | 50 | 39 | 2.4 | 13 | 6.4 | 82 |
| Apr | 54 | 42 | 2.6 | 13 | 8.5 | 79 |
| May | 59 | 46 | 2.9 | 14 | 9.9 | 78 |
| Jun | 63 | 51 | 3.1 | 14 | 9.6 | 79 |
| Jul | 66 | 54 | 3.3 | 15 | 8.7 | 81 |
| Aug | 65 | 54 | 3.5 | 15 | 8.2 | 83 |
| Sep | 62 | 51 | 2.8 | 13 | 6.8 | 84 |
| Oct | 56 | 47 | 3.4 | 14 | 5.5 | 86 |
| Nov | 50 | 42 | 3.1 | 14 | 4.0 | 88 |
| Dec | 46 | 39 | 3.1 | 13 | 3.2 | 89 |
Similar climates
Want a side-by-side climate view? Compare Armagh 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: Jul 31, 2026
Data & methodology