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La Roche-sur-Yon, Pays de la Loire climate
Cfb Oceanic / temperate
La Roche-sur-Yon has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 77°F, while the coldest is January averaging around 37°F at night. Around 33 inches of precipitation falls each year, peaking in November (4.0 inches) and easing off in June (1.8 inches).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)La Roche-sur-Yon climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 49 | 50 | 56 | 61 | 67 | 74 | 77 | 78 | 72 | 63 | 55 | 50 |
| Avg temp (°F) | 43 | 43 | 48 | 51 | 58 | 64 | 67 | 67 | 62 | 56 | 48 | 44 |
| Avg low (°F) | 37 | 36 | 39 | 42 | 48 | 53 | 57 | 56 | 52 | 48 | 42 | 38 |
| Precipitation (in) | 3.6 | 2.7 | 2.5 | 2.4 | 2.4 | 1.8 | 1.9 | 1.9 | 2.6 | 3.7 | 4.0 | 3.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 49 | 50 | 56 | 61 | 67 | 74 |
| Avg temp (°F) | 43 | 43 | 48 | 51 | 58 | 64 |
| Avg low (°F) | 37 | 36 | 39 | 42 | 48 | 53 |
| Precipitation (in) | 3.6 | 2.7 | 2.5 | 2.4 | 2.4 | 1.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 77 | 78 | 72 | 63 | 55 | 50 |
| Avg temp (°F) | 67 | 67 | 62 | 56 | 48 | 44 |
| Avg low (°F) | 57 | 56 | 52 | 48 | 42 | 38 |
| Precipitation (in) | 1.9 | 1.9 | 2.6 | 3.7 | 4.0 | 3.9 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 64 | 62 | 62 | 63 | 59 | 53 | 52 | 53 | 63 | 67 | 67 |
| Relative humidity (%) | 91 | 87 | 84 | 80 | 78 | 76 | 74 | 74 | 76 | 84 | 89 | 91 |
| Wind speed (mph) | 8.1 | 7.9 | 7.5 | 7.1 | 6.8 | 6.5 | 6.4 | 6.2 | 6.5 | 7.2 | 7.7 | 8.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 69 | 64 | 62 | 62 | 63 | 59 |
| Relative humidity (%) | 91 | 87 | 84 | 80 | 78 | 76 |
| Wind speed (mph) | 8.1 | 7.9 | 7.5 | 7.1 | 6.8 | 6.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 52 | 53 | 63 | 67 | 67 |
| Relative humidity (%) | 74 | 74 | 76 | 84 | 89 | 91 |
| Wind speed (mph) | 6.4 | 6.2 | 6.5 | 7.2 | 7.7 | 8.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at LA Roche Sur Yon Les Ajoncs, a weather station, about 5 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.