Climate averages 1991–2020
Bonn weather
in June.
A mild, moderately wet month: the 3rd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a mild month in Bonn: daytime highs average 21.3°C and nights cool to about 12.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 71 mm of rain on roughly 12 days, which makes June a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 25 min on an average June day.
The nearest other city in this atlas is Troisdorf (9 km away). In June its highs average 21.1°C, about as warm as Bonn, with 73 mm of rain.
Among the 120 cities listed in Germany, Bonn ranks joint 40th of 120 for the warmest June highs and joint 67th of 120 for the driest June (rainfall, lowest first). The mean June high of those 120 cities is 20.9°C; Bonn is 0.3°C warmer than that mean.
From June to July, average highs rise by 2.1°C to 23.4°C, and monthly rainfall rises from 71 mm to 74 mm.
The annual picture
June in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Bonn climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.4°C0.7°C | 0.7°C | 63 | 13.1 | 8.59 h |
| February | 6.6°C0.7°C | 0.7°C | 55 | 11.5 | 10.010 h |
| March | 10.3°C2.5°C | 2.5°C | 59 | 12.8 | 11.812 h |
| April | 14.5°C5.3°C | 5.3°C | 48 | 10.4 | 13.814 h |
| May | 18.3°C9.3°C | 9.3°C | 61 | 11.6 | 15.515 h |
| June, selected | 21.3°C12.5°C | 12.5°C | 71 | 11.8 | 16.416 h |
| July | 23.4°C14.8°C | 14.8°C | 74 | 12.6 | 16.016 h |
| August | 23.2°C14.6°C | 14.6°C | 78 | 11.8 | 14.515 h |
| September | 19.3°C11.5°C | 11.5°C | 62 | 10.5 | 12.713 h |
| October | 14.5°C8.3°C | 8.3°C | 65 | 11.6 | 10.811 h |
| November | 9.3°C4.6°C | 4.6°C | 66 | 12.7 | 9.09 h |
| December | 6.0°C1.7°C | 1.7°C | 75 | 14.9 | 8.18 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
June in nearby cities
- Troisdorf in JuneGermany · 9 kmHigh 21.1°C · Low 12.5°C · 73 mm rain
- Köln in JuneGermany · 24 kmHigh 20.9°C · Low 12.3°C · 70 mm rain
- Bergisch Gladbach in JuneGermany · 28 kmHigh 20.9°C · Low 12.5°C · 77 mm rain
- Leverkusen in JuneGermany · 34 kmHigh 21.1°C · Low 12.6°C · 70 mm rain
- Düren in JuneGermany · 43 kmHigh 20.4°C · Low 11.9°C · 73 mm rain
- Solingen in JuneGermany · 49 kmHigh 20.0°C · Low 11.8°C · 83 mm rain
- Remscheid in JuneGermany · 50 kmHigh 19.2°C · Low 11.0°C · 87 mm rain
- Koblenz in JuneGermany · 54 kmHigh 21.5°C · Low 12.6°C · 59 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Bonn) is explained once on the Bonn year overview and on the Sources, method and limits page.