Temperature
Cool by day, cold at night.
Armagh is usually most comfortable in May, June, and September. Typical daytime highs range from 46–66°F across the year. Rain varies by season.

Cool by day, cold at night.
Rain is frequent. About 14 wet days this month.
Sunshine is limited, with cloud often dominating.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 42° and nights feel near 37°.
Mostly cloudy skies this month.
Calm winds are typical in November.
November late afternoons are around 48°F, easing to about 46°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