Parc naturel de la Vallée de l'Attert
- Annual mean
- 8.4 °C
- Warmest month
- July
- Wettest month
- December
Long-term temperature, precipitation, and daylight patterns at a representative site.
Climate data for Parc naturel Haute-Sûre Forêt d'Anlier provides a consistent 1991 to 2020 reference for temperature, precipitation, humidity, wind, and daylight hours. These monthly averages reflect conditions at a single representative coordinate within the regional park. Precise measurement points offer a clear look at seasonal shifts in local climate patterns rather than daily weather or short-term forecasts.

Long-term monthly temperature ranges and average daily precipitation rates across twelve months
Complete monthly normals for temperature bounds, precipitation rates, humidity, and daylight
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 0.2 °C-9.3° to 8.6° | 2.8 mm/day | 95.3% | 5.5 m/s | 8.4 hours |
| February | 0.6 °C-8.4° to 9.7° | 2.5 mm/day | 93.6% | 5.2 m/s | 9.8 hours |
| March | 4 °C-5° to 15° | 2.3 mm/day | 88.5% | 4.9 m/s | 11.6 hours |
| April | 7.7 °C-2.8° to 19.7° | 1.8 mm/day | 82.7% | 4.3 m/s | 13.5 hours |
| May | 11.8 °C1° to 23.3° | 2.3 mm/day | 80.7% | 4.1 m/s | 15.2 hours |
| June | 15.1 °C4.9° to 26.6° | 2.5 mm/day | 79% | 3.9 m/s | 16 hours |
| July | 17.4 °C7.5° to 29.4° | 2.5 mm/day | 74.9% | 3.8 m/s | 15.6 hours |
| August | 17.2 °C7.3° to 29.7° | 2.5 mm/day | 73.8% | 3.7 m/s | 14.2 hours |
| September | 13.3 °C4° to 24.6° | 2.3 mm/day | 78.8% | 4.1 m/s | 12.3 hours |
| October | 8.8 °C-0.4° to 19.9° | 2.5 mm/day | 87.7% | 4.7 m/s | 10.4 hours |
| November | 4.2 °C-3.9° to 13.7° | 2.7 mm/day | 94.2% | 4.8 m/s | 8.8 hours |
| December | 1 °C-7.8° to 9.5° | 3.2 mm/day | 95.7% | 5.3 m/s | 8 hours |
Comparative monthly averages for temperature, precipitation, humidity, wind, and daylight duration.
Interactive climate map
Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.
Explore monthly temperature normals and precipitation rhythms across different geographic settings.





Examine the detailed geographic profile of this Walloon nature park. Through MoriAtlas, trace the forest cover and river basin boundaries that define the ecological character of this significant Ardennes protected area.