Climate averages 1991–2020
Lyon weather
in August.
A warm, moderately wet month: one of the warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Lyon: daytime highs average 26.7°C and nights cool to about 16.5°C. By daytime temperature it is one of the warmest months of the year.
Expect about 77 mm of rain on roughly 10 days, which makes August a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 08 min on an average August day.
The nearest other city in this atlas is Villeurbanne (3 km away). In August its highs average 26.4°C, about as warm as Lyon, with 75 mm of rain.
Among the 57 cities listed in France, Lyon ranks 15th of 57 for the warmest August highs and joint 51st of 57 for the driest August (rainfall, lowest first). The mean August high of those 57 cities is 25.0°C; Lyon is 1.7°C warmer than that mean.
From August to September, average highs fall by 4.7°C to 22.1°C, and monthly rainfall rises from 77 mm to 93 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
Lyon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 7.2°C0.7°C | 0.7°C | 69 | 12.6 | 9.19 h |
| February | 8.8°C0.8°C | 0.8°C | 56 | 10.2 | 10.310 h |
| March | 12.9°C3.4°C | 3.4°C | 60 | 10.8 | 11.912 h |
| April | 16.3°C6.3°C | 6.3°C | 81 | 11.8 | 13.513 h |
| May | 20.2°C10.4°C | 10.4°C | 90 | 12.5 | 14.915 h |
| June | 24.3°C14.3°C | 14.3°C | 81 | 11.7 | 15.616 h |
| July | 26.7°C16.6°C | 16.6°C | 78 | 10.0 | 15.315 h |
| August, selected | 26.7°C16.5°C | 16.5°C | 77 | 9.5 | 14.114 h |
| September | 22.1°C12.9°C | 12.9°C | 93 | 9.6 | 12.613 h |
| October | 17.2°C9.3°C | 9.3°C | 99 | 11.6 | 11.011 h |
| November | 11.2°C4.6°C | 4.6°C | 100 | 12.4 | 9.510 h |
| December | 7.7°C1.7°C | 1.7°C | 74 | 12.3 | 8.89 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
- Villeurbanne in AugustFrance · 3 kmHigh 26.4°C · Low 16.5°C · 75 mm rain
- Saint-Étienne in AugustFrance · 50 kmHigh 24.7°C · Low 14.7°C · 77 mm rain
- Grenoble in AugustFrance · 93 kmHigh 26.3°C · Low 16.8°C · 107 mm rain
- Geneva in AugustSwitzerland · 112 kmHigh 24.0°C · Low 15.5°C · 117 mm rain
- Clermont-Ferrand in AugustFrance · 137 kmHigh 24.3°C · Low 14.3°C · 88 mm rain
- Lausanne in AugustSwitzerland · 162 kmHigh 22.8°C · Low 16.8°C · 116 mm rain
- Dijon in AugustFrance · 174 kmHigh 25.2°C · Low 15.4°C · 70 mm rain
- Besançon in AugustFrance · 189 kmHigh 24.7°C · Low 15.5°C · 78 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 Lyon) is explained once on the Lyon year overview and on the Sources, method and limits page.