Climate averages 1991–2020
Gießen weather
in August.
A warm, moderately wet month: the 2nd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Gießen: daytime highs average 23.2°C and nights cool to about 14.2°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 60 mm of rain on roughly 10 days, which makes August a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 32 min on an average August day.
The nearest other city in this atlas is Marburg an der Lahn (26 km away). In August its highs average 22.6°C, 0.6°C cooler than Gießen, with 61 mm of rain.
Among the 120 cities listed in Germany, Gießen ranks joint 42nd of 120 for the warmest August highs and joint 15th of 120 for the driest August (rainfall, lowest first). The mean August high of those 120 cities is 22.9°C; Gießen is 0.3°C warmer than that mean.
From August to September, average highs fall by 4.3°C to 18.9°C, and monthly rainfall falls from 60 mm to 55 mm.
The annual picture
August 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
Gießen climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 4.0°C-0.6°C | -0.6°C | 56 | 11.3 | 8.59 h |
| February | 5.4°C-0.7°C | -0.7°C | 46 | 9.7 | 10.010 h |
| March | 9.5°C1.5°C | 1.5°C | 51 | 11.1 | 11.812 h |
| April | 14.1°C4.6°C | 4.6°C | 46 | 9.8 | 13.814 h |
| May | 17.9°C8.9°C | 8.9°C | 59 | 10.9 | 15.515 h |
| June | 21.2°C12.2°C | 12.2°C | 61 | 10.7 | 16.416 h |
| July | 23.3°C14.3°C | 14.3°C | 67 | 11.8 | 16.016 h |
| August, selected | 23.2°C14.2°C | 14.2°C | 60 | 10.3 | 14.515 h |
| September | 18.9°C10.8°C | 10.8°C | 55 | 9.1 | 12.713 h |
| October | 13.6°C7.0°C | 7.0°C | 55 | 10.9 | 10.811 h |
| November | 8.0°C3.3°C | 3.3°C | 56 | 11.1 | 9.09 h |
| December | 4.5°C0.3°C | 0.3°C | 67 | 13.1 | 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
August in nearby cities
- Marburg an der Lahn in AugustGermany · 26 kmHigh 22.6°C · Low 13.7°C · 61 mm rain
- Frankfurt am Main in AugustGermany · 52 kmHigh 24.4°C · Low 15.0°C · 53 mm rain
- Hanau am Main in AugustGermany · 53 kmHigh 24.3°C · Low 14.9°C · 58 mm rain
- Offenbach in AugustGermany · 54 kmHigh 24.4°C · Low 14.9°C · 53 mm rain
- Siegen in AugustGermany · 56 kmHigh 21.6°C · Low 13.5°C · 81 mm rain
- Wiesbaden in AugustGermany · 64 kmHigh 24.2°C · Low 15.2°C · 58 mm rain
- Mainz in AugustGermany · 73 kmHigh 24.5°C · Low 15.0°C · 58 mm rain
- Darmstadt in AugustGermany · 80 kmHigh 24.3°C · Low 15.0°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 Gießen) is explained once on the Gießen year overview and on the Sources, method and limits page.