Mettlach Temperature by Month

Mettlach in Saarland, Germany sees significant seasonal temperature differences, with daytime highs between 5°C (41°F) in January and 25°C (77°F) in July, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.

The weather in Mettlach 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 (30°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Mettlach 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 224 hours of sunshine.

The chart below shows the average temperature throughout the year:

Mettlach'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.

San Francisco, USA averages 19°C (66°F) annually, but with little seasonal variation, summers are often cool and foggy, winters mild.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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 Mettlach this rarely lasts long on the ground.

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