Temperature
Cold by day, cold at night.
42°Ftypical January high
Typical range
January climate
January in Bonn
Germany · Europe
Cold weather is the main limitation.
Limited, but doable
Mid to late
Daytime high
42°F
Lows around 34°F
Precipitation
13 days/mo
Sun
4 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Some precipitation is expected this month.
42%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine is limited, with cloud often dominating.
4 hJanuary sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryJanuary Heat feel
Easy airWarm airHot airHumid air
Hourly temperature pattern
In January, afternoons feel about 32° and nights feel near 28°.
FreezingVery coldColdCoolComfortableNight hours
Clear sky
Mostly cloudy skies this month.
27%January Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in January.
9 mphJanuary Light breeze
More detailIncludes daypart comfort
Typical January day
January late afternoons are around 40°F, easing to about 38°F in early evening.
Avg temp Typical range
Morning38°F
Rain21%
Cloud76%
Humid airLow
Sun intensityMinimal
Midday41°F
Rain21%
Cloud75%
Humid airLow
Sun intensityLow
Best windowLate afternoon40°F
Rain22%
Cloud74%
Humid airLow
Sun intensityMinimal
Early evening38°F
Rain22%
Cloud72%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 42 | 34 | 2.5 | 13 | 4.0 | 84 |
| Feb | 44 | 35 | 2.2 | 12 | 5.4 | 80 |
| Mar | 51 | 38 | 2.3 | 13 | 7.3 | 75 |
| Apr | 59 | 43 | 1.9 | 10 | 9.9 | 69 |
| May | 65 | 49 | 2.4 | 12 | 10.6 | 71 |
| Jun | 71 | 55 | 2.8 | 12 | 11.2 | 71 |
| Jul | 75 | 59 | 2.9 | 13 | 11.2 | 71 |
| Aug | 74 | 58 | 3.1 | 12 | 10.5 | 73 |
| Sep | 67 | 53 | 2.4 | 11 | 8.3 | 78 |
| Oct | 58 | 47 | 2.6 | 11 | 6.1 | 82 |
| Nov | 49 | 41 | 2.6 | 13 | 4.2 | 86 |
| Dec | 43 | 36 | 3.0 | 15 | 3.3 | 86 |
Similar climates
Similar
Similar travel styleAmsterdamNetherlandsSimilar travel styleLondonUnited KingdomSimilar travel styleViennaAustriaSimilar travel styleMilanItaly
Want a side-by-side climate view? Compare Bonn with Amsterdam.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 26, 2026
Data & methodology