Saint-Chamond, France Climate
The warmest month is August, with an average high of 27°C; the coldest is January, with an average low of -2°C. A normal year brings 712 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 28
- Normal high
- 19°C
- Normal low
- 8°C
- Reanalysis high
- 28°Cin 2011
- Reanalysis low
- 4°Cin 2008
- Chance of a wet day
- 34%
- Daylight
- 11 h 52 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 5°C | -2°C | 15°C (2002) | -14°C (2007) | 44 mm | 10.3 |
| February | 6°C | -2°C | 18°C (1991) | -16°C (2012) | 36 mm | 8.5 |
| March | 11°C | 1°C | 21°C (2006) | -15°C (2005) | 39 mm | 9.3 |
| April | 14°C | 3°C | 25°C (2007) | -6°C (2003) | 61 mm | 11.5 |
| May | 19°C | 7°C | 29°C (2015) | -2°C (1991) | 76 mm | 12.6 |
| June | 23°C | 11°C | 37°C (2019) | 3°C (2001) | 65 mm | 12.2 |
| July | 27°C | 14°C | 39°C (2015) | 6°C (2000) | 62 mm | 10.1 |
| August | 27°C | 14°C | 39°C (2003) | 5°C (1995) | 59 mm | 9.4 |
| September | 22°C | 10°C | 32°C (2020) | 1°C (2002) | 71 mm | 9.1 |
| October | 16°C | 6°C | 27°C (1997) | -6°C (2003) | 77 mm | 11.1 |
| November | 9°C | 2°C | 22°C (2020) | -10°C (1998) | 74 mm | 11.4 |
| December | 6°C | -1°C | 14°C (2015) | -13°C (2001) | 48 mm | 10.6 |
| Year | 15°C | 5°C | 712 mm | 126 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
712 mm in a normal year, most in October.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Saint-Chamond.
Days with a mean dew point of 18°C or more are rare here in every month.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 0°C | 91% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | 0°C | 87% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | 2°C | 83% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | 5°C | 78% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | 8°C | 75% | 95% | 5% | 0% | 0% | 0% | 0% |
| June | 11°C | 69% | 72% | 24% | 4% | 0% | 0% | 0% |
| July | 11°C | 62% | 65% | 29% | 6% | 0% | 0% | 0% |
| August | 11°C | 60% | 73% | 23% | 4% | 0% | 0% | 0% |
| September | 9°C | 69% | 88% | 11% | 1% | 0% | 0% | 0% |
| October | 7°C | 82% | 95% | 5% | 0% | 0% | 0% | 0% |
| November | 3°C | 89% | 100% | 0% | 0% | 0% | 0% | 0% |
| December | 1°C | 91% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is July, with the sky 50 percent covered on average; the cloudiest is November, at 70 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is February, averaging 14.8 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 18, with 15 h 41 min of daylight; the shortest is Dec 20, with 8 h 42 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Saint-Chamond in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-28. Sun and moon: computed with the NOAA solar equations and Meeus.