
Naturschutzgebiet Mündungsgebiet der Ahr
- Annual mean
- 9 °C
- Warmest month
- July
- Wettest month
- December
Trace twelve months of averages at a sampled 294.09 m point
Erpeler Ley’s mean temperature is 0.04 °C in January and 18.70 °C in July. Average daily precipitation is 1.60 mm in April and 2.45 mm in December, while relative humidity is 94.56% in December and 67.78% in August. The NASA POWER 1991–2020 series also compares wind and daylight at a representative 294.09 m point; it is climatology, not current weather, forecasts, or proof of reserve-wide uniformity.

Long term thermal range and average daily precipitation across twelve monthly records
Compare long-term monthly averages across temperature bounds, humidity, wind, and daylight duration.
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 0 °C-9.8° to 8.8° | 2.2 mm/day | 93.9% | 5.2 m/s | 8.3 hours |
| February | 0.8 °C-8.7° to 10.7° | 1.9 mm/day | 91.4% | 4.9 m/s | 9.8 hours |
| March | 4.2 °C-5.2° to 15.9° | 1.8 mm/day | 86% | 4.7 m/s | 11.6 hours |
| April | 8.4 °C-2.8° to 21.1° | 1.6 mm/day | 80% | 4 m/s | 13.6 hours |
| May | 12.6 °C1.4° to 24.8° | 2.2 mm/day | 77.9% | 3.9 m/s | 15.3 hours |
| June | 16.2 °C5.3° to 28.8° | 2.3 mm/day | 74% | 3.7 m/s | 16.2 hours |
| July | 18.7 °C8.2° to 31.6° | 2.4 mm/day | 68.6% | 3.7 m/s | 15.7 hours |
| August | 18.5 °C7.6° to 31.9° | 2.2 mm/day | 67.8% | 3.6 m/s | 14.2 hours |
| September | 14.1 °C4.2° to 26.5° | 2.1 mm/day | 74.7% | 3.8 m/s | 12.3 hours |
| October | 9 °C-0.6° to 20.6° | 2.1 mm/day | 85.5% | 4.3 m/s | 10.4 hours |
| November | 4.3 °C-4° to 14.1° | 2.2 mm/day | 92.8% | 4.4 m/s | 8.7 hours |
| December | 0.9 °C-8° to 9.7° | 2.5 mm/day | 94.6% | 4.9 m/s | 7.8 hours |
Comparative monthly averages for temperature, precipitation, humidity, wind, and daylight duration across the park.
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.
Analyze monthly temperature, precipitation, and daylight rhythms across diverse protected areas.





Deepen your understanding of the Middle Rhine geography by examining the volcanic boundaries and protected habitat zones at Erpeler Ley. MoriAtlas provides a structured look at the terrain and natural features that define this significant basalt cliff and its surrounding river valley context.