Sundern Temperature by Month

Sundern in North Rhine-Westphalia, Germany sees significant seasonal temperature differences, with daytime highs between 4°C (39°F) in January and 23°C (73°F) in July, averaging 14°C (57°F) annually. Explore the full monthly breakdown below.

Depending on the time of the year, temperatures range from comfortable to cold in Sundern. At night, minimum temperatures range from 13°C (55°F) in July to -1°C (30°F) in January.

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

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. July, the warmest month, averages 223 hours of sunshine.

The chart below shows the average temperature throughout the year:

Sundern'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:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Beijing, China averages 20°C (68°F) annually, but with big seasonal swings, very cold winters and hot summers.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

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.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Sundern this rarely lasts long on the ground.

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