Bad Honnef am Rhein Temperature by Month
Bad Honnef am Rhein in North Rhine-Westphalia, Germany sees significant seasonal temperature differences, with daytime highs between 6°C (43°F) in January and 24°C (75°F) in July, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.
Bad Honnef am Rhein Monthly Temperatures
Visitors to Bad Honnef am Rhein will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range 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 Bad Honnef am Rhein 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 210 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Bad Honnef am Rhein 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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Bad Honnef am Rhein vs World: Temperature Compared
Bad Honnef am Rhein'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.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Osaka, Japan averages 22°C (72°F) annually, with hot humid summers, mild winters, and pleasant spring and autumn seasons.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
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 Bad Honnef am Rhein this rarely lasts long on the ground.
For more on Bad Honnef am Rhein's weather — including monthly rainfall, sunshine hours, and humidity — visit our Bad Honnef am Rhein climate page.
