Datteln Temperature by Month
The average annual maximum temperature in Datteln, North Rhine-Westphalia, Germany is 15°C (59°F), with daytime highs ranging from 6°C (43°F) in January to 25°C (77°F) in July. This page covers monthly averages, day-night differences, and how Datteln compares to cities worldwide.
Datteln Monthly Temperatures
The weather in Datteln experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 14°C (57°F) in July to 1°C (34°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Datteln 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 223 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Datteln vs Germany
The map below shows the annual temperature across Germany. You can also select individual months if you want to compare a specific time of year.
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Datteln vs World: Temperature Compared
Datteln's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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 Datteln this rarely lasts long on the ground.
For more on Datteln's weather — including monthly rainfall, sunshine hours, and humidity — visit our Datteln climate page.
