Climate in Arlon

Arlon, Belgium has a oceanic climate. The annual average temperature is about 11.5°C and the city receives roughly 850 mm of precipitation across 143 rainy days a year, with around 1063 hours of sunshine. The warmest month is Jul (highs near 20.8°C) and the coldest is Jan (lows near 2.1°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Arlon is classified as Oceanic. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Arlon receives about 850 mm of precipitation a year over roughly 143 rainy days. The wettest month is Dec and the driest is Apr.

Arlon sees an estimated 1063 hours of sunshine a year, concentrated in the warmer months around Jul.

By temperature and rainfall, the most comfortable months in Arlon are Jun, Jul, Aug. Conditions vary year to year — verify with a current forecast before booking.

Arlon has a climate comfort score of 64/100, a comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.

• Climate in Namur — Oceanic, comfort 64/100
• Climate in Liege — Oceanic, comfort 64/100
• Climate in Hasselt — Oceanic, comfort 64/100