Climate averages 1991–2020
Saint-Étienne weather
in August.
A warm, moderately wet month: 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 Saint-Étienne: daytime highs average 24.7°C and nights cool to about 14.7°C. By daytime temperature it is the warmest month 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 07 min on an average August day.
The nearest other city in this atlas is Lyon (50 km away). In August its highs average 26.7°C, 2.1°C warmer than Saint-Étienne, with 77 mm of rain.
Among the 57 cities listed in France, Saint-Étienne ranks joint 21st 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; Saint-Étienne is 0.3°C cooler than that mean.
From August to September, average highs fall by 4.5°C to 20.2°C, and monthly rainfall rises from 77 mm to 90 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
Saint-Étienne climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 6.3°C0.0°C | 0.0°C | 63 | 12.2 | 9.19 h |
| February | 7.4°C-0.2°C | -0.2°C | 49 | 10.0 | 10.410 h |
| March | 11.1°C2.2°C | 2.2°C | 55 | 11.3 | 11.912 h |
| April | 14.3°C4.8°C | 4.8°C | 86 | 12.5 | 13.513 h |
| May | 18.1°C8.7°C | 8.7°C | 98 | 13.5 | 14.915 h |
| June | 22.2°C12.4°C | 12.4°C | 89 | 12.4 | 15.616 h |
| July | 24.6°C14.7°C | 14.7°C | 83 | 10.4 | 15.315 h |
| August, selected | 24.7°C14.7°C | 14.7°C | 77 | 9.7 | 14.114 h |
| September | 20.2°C11.2°C | 11.2°C | 90 | 9.5 | 12.613 h |
| October | 15.8°C8.2°C | 8.2°C | 95 | 11.5 | 11.011 h |
| November | 10.1°C3.7°C | 3.7°C | 94 | 12.3 | 9.610 h |
| December | 7.0°C1.1°C | 1.1°C | 64 | 11.4 | 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
- Lyon in AugustFrance · 50 kmHigh 26.7°C · Low 16.5°C · 77 mm rain
- Villeurbanne in AugustFrance · 53 kmHigh 26.4°C · Low 16.5°C · 75 mm rain
- Grenoble in AugustFrance · 107 kmHigh 26.3°C · Low 16.8°C · 107 mm rain
- Clermont-Ferrand in AugustFrance · 108 kmHigh 24.3°C · Low 14.3°C · 88 mm rain
- Geneva in AugustSwitzerland · 161 kmHigh 24.0°C · Low 15.5°C · 117 mm rain
- Avignon in AugustFrance · 168 kmHigh 30.7°C · Low 19.0°C · 42 mm rain
- Nîmes in AugustFrance · 178 kmHigh 30.4°C · Low 19.1°C · 34 mm rain
- Montpellier in AugustFrance · 207 kmHigh 28.1°C · Low 19.0°C · 26 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 Saint-Étienne) is explained once on the Saint-Étienne year overview and on the Sources, method and limits page.