Bonn Weather in January
January in Bonn brings low temperatures around 6°C (43°F) during the day, dropping to 1°C (34°F) at night, with quite a bit of rainfall expected, averaging around 76 mm (3 in) for the month.
Rainfall in Bonn in January
Historically, approximately 17 days this month are expected to have rain, averaging 76 mm (3 in). With rain spread across many days but low totals, showers are typically short and light rather than heavy.
Temperature in Bonn in January
January in Bonn brings low temperatures, with highs of 6°C (43°F) and nights around 1°C (34°F). This month falls in the winter season. Expect a cold feel throughout the day, not just in the mornings and evenings. Warm layers are essential. With overnight lows of 1°C (34°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. It is the coldest month of the year, so be sure to pack proper winter clothing for the conditions.Pack accordingly with warm clothes.
Sunshine in Bonn in January
The area sees fewer sunny days, with a projection of about 51 hours of sunshine. This reduced sunlight makes it ideal for those who prefer overcast conditions over bright sunny days.January in Bonn has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Germany, check out our Bonn's climate page.
Bonn Temperature in January
Min Temperature
1°C (34°F)
Max Temperature
6°C (43°F)
Chance of Rain
58%
Precipitation
76 mm (3 in)
Rainy days
17 days
Sunshine
51 hours
Percentage Sunshine
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Bonn typically stay consistent throughout January, with daily highs averaging around 6°C (43°F). Nights are very cold, with lows around 0°C (32°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Bonn in January
Browse day-by-day weather records for Bonn spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Bonn historical weather extremes in January
The extremes listed below come from historical weather data collected in Bonn from 1976 through 2025.
- The warmest day in January was on January 10, 2005, with a maximum of 16°C (61°F).
Best Places in Germany in January
Find out more about the weather in Germany and which places have the best travel conditions in this month. See all of Germany in January →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Bonn in January
Cold weather calls for smart layering in January. A thermal base layer makes a huge difference in staying warm. Add a wool sweater or fleece, then a wind-resistant outer jacket. Rain gear is recommended, you can expect wet weather on multiple days. With limited sunshine expected, sunglasses aren't a priority for packing.What To Do in Bonn in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Germany, check out our Bonn's climate page.
See the full Bonn climate overview or explore weather in Germany.
