Altenahr Temperature by Month

The average annual maximum temperature in Altenahr, Rhineland-Palatinate, Germany is 14°C (57°F), with daytime highs ranging from 5°C (41°F) in January to 24°C (75°F) in July. This page covers monthly averages, day-night differences, and how Altenahr compares to cities worldwide.

The climate in Altenahr is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 14°C (57°F) in July to 0°C (32°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Altenahr by month:

Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. July, the city's warmest month, sees 210 hours of sunshine.

The chart below shows the average temperature throughout the year:

Altenahr's average annual maximum temperature is 14°C (57°F). To put that in context, here's how it compares to a few well-known destinations:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

For more on Altenahr's weather, including monthly rainfall, sunshine hours, and humidity, visit our Altenahr climate page.