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Altenahr Weather and Climate: A Comprehensive Guide

The temperature in Altenahr can vary greatly throughout the year. The temperatures shift from warm to cold. It receives a moderate amount of precipitation. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

Depending on the time of the year, temperatures range from comfortable to chilly in Altenahr. On average, daytime temperatures range from a comfortable 24°C in July to a chilly 5°C in January.

Nighttime temperatures can drop, with average lows reaching -0°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Generally, Altenahr has a moderate amount of precipitation, averaging 846 mm of rain/snowfall annually. The wettest period in Altenahr occurs in July, which receives around 87 mm of precipitation. During the driest month, April, Altenahr experiences moderate rainfall, totaling approximately 58 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

In Altenahr, summer days are longer and more sunny, with daily sunshine hours peaking at 7.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 1.4 hours per average day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Bonn, Germany (25 KM, 15 Miles).

Daily hours of sunshine

Data from: Bonn, Germany (25 KM, 15 Miles).

Forecast for Altenahr

Tue   Dec 24
5°C | 1°C
SW 4 m/s
3.3 mm
overcast and rain

overcast and rain

Wed   Dec 25
8°C | 4°C
SW 3 m/s
0.9 mm
overcast and  chance of slight rain

overcast and chance of slight rain

Thu   Dec 26
8°C | 2°C
S 2 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Altenahr in Germany

During the months of June, July and August you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Altenahr?
    July has an average maximum temperature of 24°C and is the warmest month of the year.
  • Which is the coldest month in Altenahr?
    The coldest month is January with an average maximum temperature of 5°C.
  • Which is the wettest month in Altenahr?
    July tops the wettest month list with 87 mm of rainfall.
  • Which is the driest month in Altenahr?
    April is the driest month with 58 mm of precipitation.
  • Which is the sunniest month in Altenahr?
    July is the sunniest month with an average of 210 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.