Praz-sur-Arly, France Climate
The warmest month is August, with an average high of 24°C; the coldest is January, with an average low of -4°C. A normal year brings 1120 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 Oct 4
- Normal high
- 17°C
- Normal low
- 7°C
- Reanalysis high
- 24°Cin 2004
- Reanalysis low
- 2°Cin 1993
- Chance of a wet day
- 42%
- Daylight
- 11 h 32 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 | 3°C | -4°C | 12°C (2002) | -21°C (1999) | 92 mm | 12.0 |
| February | 4°C | -3°C | 16°C (1991) | -23°C (1999) | 75 mm | 10.3 |
| March | 8°C | 0°C | 18°C (2017) | -16°C (2005) | 81 mm | 11.5 |
| April | 12°C | 3°C | 23°C (2018) | -6°C (1994) | 80 mm | 11.8 |
| May | 17°C | 7°C | 29°C (2009) | -2°C (2019) | 106 mm | 15.6 |
| June | 20°C | 11°C | 36°C (2019) | 1°C (2006) | 100 mm | 14.8 |
| July | 23°C | 13°C | 34°C (2019) | 5°C (1996) | 95 mm | 13.4 |
| August | 24°C | 13°C | 36°C (2003) | 3°C (1995) | 91 mm | 12.6 |
| September | 19°C | 10°C | 29°C (2009) | 1°C (2002) | 92 mm | 11.4 |
| October | 15°C | 6°C | 27°C (2009) | -6°C (2012) | 99 mm | 12.5 |
| November | 8°C | 1°C | 20°C (2015) | -13°C (1999) | 101 mm | 13.2 |
| December | 4°C | -3°C | 14°C (2006) | -17°C (2014) | 108 mm | 12.9 |
| Year | 13°C | 5°C | 1120 mm | 152 |
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.
1120 mm in a normal year, most in December.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Praz-sur-Arly.
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 | -4°C | 82% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | -3°C | 82% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | 0°C | 79% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | 4°C | 77% | 100% | 0% | 0% | 0% | 0% | 0% |
| May | 8°C | 76% | 96% | 4% | 0% | 0% | 0% | 0% |
| June | 11°C | 74% | 70% | 26% | 4% | 0% | 0% | 0% |
| July | 12°C | 69% | 56% | 37% | 6% | 0% | 0% | 0% |
| August | 11°C | 67% | 69% | 28% | 3% | 0% | 0% | 0% |
| September | 9°C | 72% | 93% | 6% | 0% | 0% | 0% | 0% |
| October | 6°C | 78% | 100% | 0% | 0% | 0% | 0% | 0% |
| November | 1°C | 83% | 100% | 0% | 0% | 0% | 0% | 0% |
| December | -3°C | 82% | 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 August, with the sky 59 percent covered on average; the cloudiest is May, at 72 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 March, averaging 9.0 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 17, with 15 h 44 min of daylight; the shortest is Dec 20, with 8 h 39 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 Praz-sur-Arly 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 2026-09-29. Sun and moon: computed with the NOAA solar equations and Meeus.