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

Cool by day, cold at night.
Several rainy days. About 12 wet days, fewer than in most months.
A mix of sunshine and cloud.
Humidity is rarely noticeable in the cool air.
In October, afternoons feel about 48° and nights feel near 40°.
Mostly cloudy skies this month.
Calm winds are typical in October.
October late afternoons are around 54°F, easing to about 51°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 37 | 30 | 3.3 | 13 | 3.5 | 90 |
| Feb | 40 | 31 | 2.8 | 12 | 5.2 | 86 |
| Mar | 48 | 35 | 2.8 | 13 | 7.2 | 78 |
| Apr | 55 | 39 | 2.6 | 12 | 9.8 | 72 |
| May | 62 | 46 | 3.1 | 14 | 10.6 | 75 |
| Jun | 68 | 52 | 3.2 | 13 | 11.3 | 74 |
| Jul | 71 | 55 | 3.2 | 14 | 11.5 | 74 |
| Aug | 71 | 55 | 3.1 | 13 | 10.6 | 76 |
| Sep | 64 | 49 | 2.8 | 10 | 8.3 | 81 |
| Oct | 55 | 44 | 3.2 | 12 | 5.8 | 88 |
| Nov | 45 | 37 | 3.1 | 13 | 3.8 | 92 |
| Dec | 39 | 32 | 3.6 | 14 | 2.9 | 92 |
Similar climates
Want a side-by-side climate view? Compare Arlon 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