La Roche-sur-Yon weather in August
In August, La Roche-sur-Yon sees average daytime highs of 25°C and overnight lows near 15°C, with 46 mm of rain across 7.5 wet days and about 14 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.
Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 32% of the time in August, and the air most often feels comfortable.
Daylight stretches from about 14 h 42 min at the start of August to 13 h 12 min by month's end. Set against the rest of the year, August is La Roche-sur-Yon's 1st-clearest and 12th-windiest month. For the whole year in context, see La Roche-sur-Yon's year-round climate.
- Daytime high
- 25°
- 1st warmest
- Overnight low
- 15°
- 11th coldest
- Rainfall
- 46 mm
- 7.5 wet days
- Daylight
- 14 hours
- 6:09 AM – 8:10 PM
- Cloud cover
- 54%
- 1st clearest
- Wind
- 12 km/h
- 12th windiest
- Solar energy
- 5.36 kWh/m²
- Travel score
- 7.4
- out of 10
- Air quality
- Good
- PM10 15.3 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 25°C through the month.
A typical August day in La Roche-sur-Yon reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, August runs on par with July and about 3°C warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg low (°C) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 15 |
| 2 | 25 | 15 |
| 3 | 25 | 15 |
| 4 | 25 | 15 |
| 5 | 25 | 15 |
| 6 | 25 | 15 |
| 7 | 25 | 15 |
| 8 | 25 | 15 |
| 9 | 25 | 15 |
| 10 | 25 | 15 |
| 11 | 25 | 15 |
| 12 | 25 | 15 |
| 13 | 25 | 15 |
| 14 | 25 | 15 |
| 15 | 25 | 15 |
| 16 | 25 | 15 |
| 17 | 25 | 15 |
| 18 | 25 | 15 |
| 19 | 25 | 15 |
| 20 | 24 | 15 |
| 21 | 24 | 15 |
| 22 | 24 | 15 |
| 23 | 24 | 14 |
| 24 | 24 | 14 |
| 25 | 24 | 14 |
| 26 | 24 | 14 |
| 27 | 24 | 14 |
| 28 | 24 | 14 |
| 29 | 24 | 14 |
| 30 | 24 | 14 |
| 31 | 24 | 14 |
How August really feels in La Roche-sur-Yon
Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
La Roche-sur-Yon weather by month
How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 9° / 4° | 76 | 11.3 | 8.8 | 1.8 |
| Feb | 10° / 3° | 58 | 9.6 | 10 | 2.2 |
| Mar | 13° / 5° | 55 | 10.3 | 11.6 | 3.6 |
| Apr | 16° / 7° | 57 | 10.7 | 13.3 | 4.6 |
| May | 19° / 10° | 62 | 10.9 | 14.8 | 5.8 |
| Jun | 22° / 13° | 47 | 9 | 15.6 | 6.7 |
| Jul | 24° / 15° | 41 | 7.5 | 15.3 | 7.4 |
| Aug | 25° / 15° | 46 | 7.5 | 14 | 7.4 |
| Sep | 22° / 12° | 53 | 7.7 | 12.4 | 6.9 |
| Oct | 17° / 10° | 78 | 12 | 10.6 | 5.2 |
| Nov | 13° / 6° | 79 | 12.1 | 9.2 | 3.2 |
| Dec | 10° / 4° | 84 | 12.2 | 8.4 | 2.0 |
Cloud cover in August
The sky is clear or mostly clear about 32% of the time in August, the clearest month of the year.
Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 48%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 50 | 51 | 51 | 51 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 54 | 54 | 53 | 52 | 52 | 52 | 51 | 52 | 51 | 51 | 51 | 52 | 51 | 51 | 52 | 52 | 52 | 52 | 52 | 53 |
| Cloudier (%) | 50 | 49 | 49 | 49 | 47 | 47 | 47 | 47 | 47 | 47 | 46 | 46 | 46 | 47 | 48 | 48 | 48 | 49 | 48 | 49 | 49 | 49 | 48 | 49 | 49 | 48 | 48 | 48 | 48 | 48 | 47 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 50 | 50 |
| 2 | 51 | 49 |
| 3 | 51 | 49 |
| 4 | 51 | 49 |
| 5 | 53 | 47 |
| 6 | 53 | 47 |
| 7 | 53 | 47 |
| 8 | 53 | 47 |
| 9 | 53 | 47 |
| 10 | 53 | 47 |
| 11 | 54 | 46 |
| 12 | 54 | 46 |
| 13 | 54 | 46 |
| 14 | 53 | 47 |
| 15 | 52 | 48 |
| 16 | 52 | 48 |
| 17 | 52 | 48 |
| 18 | 51 | 49 |
| 19 | 52 | 48 |
| 20 | 51 | 49 |
| 21 | 51 | 49 |
| 22 | 51 | 49 |
| 23 | 52 | 48 |
| 24 | 51 | 49 |
| 25 | 51 | 49 |
| 26 | 52 | 48 |
| 27 | 52 | 48 |
| 28 | 52 | 48 |
| 29 | 52 | 48 |
| 30 | 52 | 48 |
| 31 | 53 | 47 |
Chance of precipitation in August
La Roche-sur-Yon gets around 46 mm of rain over 7.5 wet days in August. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 24% and peaks near 24% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 |
| Rain chance (%) | |
|---|---|
| 1 | 24 |
| 2 | 24 |
| 3 | 24 |
| 4 | 24 |
| 5 | 24 |
| 6 | 24 |
| 7 | 24 |
| 8 | 24 |
| 9 | 24 |
| 10 | 24 |
| 11 | 24 |
| 12 | 24 |
| 13 | 24 |
| 14 | 24 |
| 15 | 24 |
| 16 | 24 |
| 17 | 24 |
| 18 | 24 |
| 19 | 24 |
| 20 | 24 |
| 21 | 24 |
| 22 | 24 |
| 23 | 24 |
| 24 | 23 |
| 25 | 23 |
| 26 | 23 |
| 27 | 23 |
| 28 | 22 |
| 29 | 22 |
| 30 | 22 |
| 31 | 22 |
Humidity in August
Most of August feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, August lands in the comfortable band about 39% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 23 | 23 | 24 | 24 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 31 | 31 | 32 | 33 | 34 | 35 | 37 | 38 | 40 | 41 | 43 | 44 | 45 |
| Comfortable (%) | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 | 35 | 35 | 34 |
| Humid (%) | 30 | 30 | 29 | 29 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 25 | 24 | 23 | 22 | 21 | 21 | 20 | 19 | 18 |
| Muggy (%) | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 23 | 43 | 30 | 4 |
| 2 | 23 | 43 | 30 | 4 |
| 3 | 24 | 43 | 29 | 4 |
| 4 | 24 | 42 | 29 | 4 |
| 5 | 25 | 42 | 28 | 4 |
| 6 | 26 | 42 | 28 | 4 |
| 7 | 26 | 41 | 28 | 5 |
| 8 | 27 | 41 | 28 | 5 |
| 9 | 27 | 40 | 27 | 5 |
| 10 | 28 | 40 | 27 | 5 |
| 11 | 28 | 40 | 27 | 5 |
| 12 | 29 | 39 | 27 | 5 |
| 13 | 29 | 39 | 27 | 5 |
| 14 | 30 | 39 | 27 | 5 |
| 15 | 30 | 39 | 27 | 5 |
| 16 | 30 | 38 | 27 | 5 |
| 17 | 30 | 38 | 27 | 5 |
| 18 | 30 | 38 | 27 | 5 |
| 19 | 31 | 38 | 27 | 5 |
| 20 | 31 | 38 | 26 | 4 |
| 21 | 32 | 38 | 26 | 4 |
| 22 | 33 | 38 | 26 | 4 |
| 23 | 34 | 37 | 25 | 4 |
| 24 | 35 | 37 | 24 | 4 |
| 25 | 37 | 36 | 23 | 4 |
| 26 | 38 | 36 | 22 | 4 |
| 27 | 40 | 36 | 21 | 3 |
| 28 | 41 | 35 | 21 | 3 |
| 29 | 43 | 35 | 20 | 3 |
| 30 | 44 | 35 | 19 | 3 |
| 31 | 45 | 34 | 18 | 2 |
Wind in August
Winds average 12 km/h in August, the calmest month.
Across August, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | calm |
| 7 | 12 | calm |
| 8 | 12 | calm |
| 9 | 12 | calm |
| 10 | 12 | calm |
| 11 | 12 | calm |
| 12 | 12 | calm |
| 13 | 12 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 12 | light breeze |
| 23 | 12 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | light breeze |
| 26 | 13 | light breeze |
| 27 | 13 | light breeze |
| 28 | 13 | light breeze |
| 29 | 13 | light breeze |
| 30 | 13 | light breeze |
| 31 | 13 | light breeze |
Sunrise & sunset in August
Daylight runs from about 14 h 42 min at the start of August to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 90 minutes over August. Sunrise moves from 5:50 AM to 6:29 AM, and sunset from 8:33 PM to 7:43 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 14.7 | 14.7 | 14.6 | 14.6 | 14.5 | 14.5 | 14.5 | 14.4 | 14.4 | 14.3 | 14.3 | 14.2 | 14.2 | 14.1 | 14.1 | 14.0 | 14.0 | 13.9 | 13.9 | 13.8 | 13.8 | 13.7 | 13.7 | 13.6 | 13.6 | 13.5 | 13.4 | 13.4 | 13.3 | 13.3 | 13.2 |
| Sunrise (AM) | 5:50 | 5:51 | 5:52 | 5:54 | 5:55 | 5:56 | 5:58 | 5:59 | 6:00 | 6:01 | 6:03 | 6:04 | 6:05 | 6:07 | 6:08 | 6:09 | 6:10 | 6:12 | 6:13 | 6:14 | 6:16 | 6:17 | 6:18 | 6:20 | 6:21 | 6:22 | 6:24 | 6:25 | 6:26 | 6:28 | 6:29 |
| Sunset (PM) | 8:33 | 8:32 | 8:31 | 8:29 | 8:28 | 8:26 | 8:25 | 8:23 | 8:22 | 8:20 | 8:19 | 8:17 | 8:16 | 8:14 | 8:12 | 8:10 | 8:09 | 8:07 | 8:05 | 8:03 | 8:02 | 8:00 | 7:58 | 7:56 | 7:54 | 7:52 | 7:50 | 7:48 | 7:46 | 7:44 | 7:43 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.7 | 5:50 | 8:33 |
| 2 | 14.7 | 5:51 | 8:32 |
| 3 | 14.6 | 5:52 | 8:31 |
| 4 | 14.6 | 5:54 | 8:29 |
| 5 | 14.5 | 5:55 | 8:28 |
| 6 | 14.5 | 5:56 | 8:26 |
| 7 | 14.5 | 5:58 | 8:25 |
| 8 | 14.4 | 5:59 | 8:23 |
| 9 | 14.4 | 6:00 | 8:22 |
| 10 | 14.3 | 6:01 | 8:20 |
| 11 | 14.3 | 6:03 | 8:19 |
| 12 | 14.2 | 6:04 | 8:17 |
| 13 | 14.2 | 6:05 | 8:16 |
| 14 | 14.1 | 6:07 | 8:14 |
| 15 | 14.1 | 6:08 | 8:12 |
| 16 | 14.0 | 6:09 | 8:10 |
| 17 | 14.0 | 6:10 | 8:09 |
| 18 | 13.9 | 6:12 | 8:07 |
| 19 | 13.9 | 6:13 | 8:05 |
| 20 | 13.8 | 6:14 | 8:03 |
| 21 | 13.8 | 6:16 | 8:02 |
| 22 | 13.7 | 6:17 | 8:00 |
| 23 | 13.7 | 6:18 | 7:58 |
| 24 | 13.6 | 6:20 | 7:56 |
| 25 | 13.6 | 6:21 | 7:54 |
| 26 | 13.5 | 6:22 | 7:52 |
| 27 | 13.4 | 6:24 | 7:50 |
| 28 | 13.4 | 6:25 | 7:48 |
| 29 | 13.3 | 6:26 | 7:46 |
| 30 | 13.3 | 6:28 | 7:44 |
| 31 | 13.2 | 6:29 | 7:43 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.36 kWh/m².
For context, solar energy here swings from a low near 1.04 kWh/m² to a high of 6.19 kWh/m² in June across the year — August's 5.36 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.8 | 5.8 | 5.8 | 5.8 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.8 | 4.8 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.8 | Bright |
| 2 | 5.8 | Bright |
| 3 | 5.8 | Bright |
| 4 | 5.8 | Bright |
| 5 | 5.7 | Bright |
| 6 | 5.7 | Bright |
| 7 | 5.7 | Bright |
| 8 | 5.6 | Bright |
| 9 | 5.6 | Bright |
| 10 | 5.6 | Bright |
| 11 | 5.5 | Bright |
| 12 | 5.5 | Bright |
| 13 | 5.5 | Bright |
| 14 | 5.4 | Bright |
| 15 | 5.4 | Bright |
| 16 | 5.4 | Bright |
| 17 | 5.3 | Bright |
| 18 | 5.3 | Bright |
| 19 | 5.3 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.1 | Bright |
| 23 | 5.1 | Bright |
| 24 | 5.1 | Bright |
| 25 | 5.0 | Bright |
| 26 | 5.0 | Bright |
| 27 | 5.0 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.9 | Bright |
| 30 | 4.8 | Bright |
| 31 | 4.8 | Bright |
Is August a good time to visit La Roche-sur-Yon?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is one of the better times to visit La Roche-sur-Yon for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for La Roche-sur-Yon in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, La Roche-sur-Yon sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes and sun protection. About 8 days see rain.
Sea temperature near La Roche-sur-Yon in August
The nearest coast averages about 20°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 33 km away) is warmest in August at about 20°C and coldest in February near 10°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 10 | 10 | 12 | 15 | 17 | 19 | 20 | 18 | 17 | 14 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 10 | Bracing |
| Mar | 10 | Bracing |
| Apr | 12 | Bracing |
| May | 15 | Bracing |
| Jun | 17 | Cool |
| Jul | 19 | Cool |
| Aug | 20 | Cool |
| Sep | 18 | Cool |
| Oct | 17 | Cool |
| Nov | 14 | Bracing |
| Dec | 12 | Bracing |
UV index in La Roche-sur-Yon in August
Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in La Roche-sur-Yon peaks around July 24 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 6 | 7 | 7 | 7 | 5 | 3 | 2 | 1 |
| Level | Low | Low | Moderate | High | High | High | Very high | Very high | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 4 | Moderate |
| Apr | 5 | High |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 7 | Very high |
| Aug | 7 | Very high |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is La Roche-sur-Yon?
La Roche-sur-Yon sits at 46.7°N, 1.4°W, 73 m above sea level, in France. The nearest listed city is Les Sables-d'Olonne, 33 km away.
Topography around La Roche-sur-Yon
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Roche-sur-Yon.
Within 3 km, the terrain around La Roche-sur-Yon has only modest variations in elevation — a maximum elevation change of 51 m around an average of 63 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 135 m; within 80 km, significant variations in elevation — a maximum elevation change of 339 m.
The land around La Roche-sur-Yon is covered by artificial surfaces (46%) and trees (26%) within 3 km, cropland (40%), grassland (31%) and trees (22%) within 16 km, and cropland (32%), water (27%) and grassland (26%) within 80 km.
France travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 77% of US
- price level, 2025
- GDP per capita
- $48,986
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 5.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 539
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for La Roche-sur-Yon (46.6697°, -1.4276°, elevation 73 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).