Wiesbaden Temperature by Month
The average annual maximum temperature in Wiesbaden, Hessen, Germany is 15°C (59°F), with daytime highs ranging from 5°C (41°F) in January to 25°C (77°F) in July. This page covers monthly averages, day-night differences, and how Wiesbaden compares to cities worldwide.
Wiesbaden Monthly Temperatures
The climate in Wiesbaden 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 -1°C (30°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Wiesbaden by month:
Temperatures tend to bottom out between 4 AM and 6 AM, then climb to their daily peak around 3 PM. July, the warmest month, sees 235 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Wiesbaden 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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Wiesbaden vs World: Temperature Compared
Wiesbaden'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.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
What Does the Temperature Feel Like in Wiesbaden?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Wiesbaden, January is the coolest month, with average highs of 5°C (41°F) and humidity around 84% — considered very high. In July, the warmest month, temperatures average 25°C (77°F) with 70% humidity — conditions that feel high. For a full picture, see our humidity page.
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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Wiesbaden's weather — including monthly rainfall, sunshine hours, and humidity — visit our Wiesbaden climate page.
