Hanover Temperature by Month
The average annual maximum temperature in Hanover, Lower-Saxony, 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 Hanover compares to cities worldwide.
Hanover Monthly Temperatures
Visitors to Hanover can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, 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 Hanover by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. July, the warmest month, gets 213 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Hanover Temperatures: 1976-2026
Browse day-by-day temperature records for Hanover spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Hanover 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.
very warm
warm
pleasant
moderate
cold
very cold
Hanover vs World: Temperature Compared
Hanover'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:
Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
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.
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 Hanover this rarely lasts long on the ground.
For more on Hanover's weather — including monthly rainfall, sunshine hours, and humidity — visit our Hanover climate page.
