Challans weather in July
In July, Challans sees average daytime highs of 22°C and overnight lows near 16°C, with 37 mm of rain across 8.1 wet days and about 15.3 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.
Day-to-day highs hold fairly steady near 22°C through the month. The sky is clear or mostly clear about 35% of the time in July, and the air most often feels comfortable.
Daylight stretches from about 15 h 36 min at the start of July to 14 h 48 min by month's end. Set against the rest of the year, July is Challans's 2nd-clearest and 10th-windiest month. For the whole year in context, see Challans's year-round climate.
- Daytime high
- 22°
- 2nd warmest
- Overnight low
- 16°
- 12th coldest
- Rainfall
- 37 mm
- 8.1 wet days
- Daylight
- 15 h 18 min
- 5:33 AM – 8:53 PM
- Cloud cover
- 53%
- 2nd clearest
- Wind
- 16 km/h
- 10th windiest
- Solar energy
- 6.18 kWh/m²
- Travel score
- 7.2
- out of 10
Challans is human settlement in France.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Day-to-day highs hold fairly steady near 22°C through the month.
A typical July day in Challans reaches about 22°C in the afternoon and slips back to 16°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.
| 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) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
| Avg low (°C) | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 22 | 16 |
| 2 | 22 | 16 |
| 3 | 22 | 16 |
| 4 | 22 | 16 |
| 5 | 22 | 16 |
| 6 | 22 | 16 |
| 7 | 22 | 16 |
| 8 | 22 | 16 |
| 9 | 22 | 16 |
| 10 | 22 | 16 |
| 11 | 22 | 16 |
| 12 | 22 | 16 |
| 13 | 22 | 16 |
| 14 | 22 | 16 |
| 15 | 22 | 16 |
| 16 | 22 | 16 |
| 17 | 22 | 16 |
| 18 | 23 | 16 |
| 19 | 23 | 16 |
| 20 | 23 | 16 |
| 21 | 23 | 17 |
| 22 | 23 | 17 |
| 23 | 23 | 17 |
| 24 | 23 | 17 |
| 25 | 23 | 17 |
| 26 | 23 | 17 |
| 27 | 23 | 17 |
| 28 | 23 | 17 |
| 29 | 23 | 17 |
| 30 | 23 | 17 |
| 31 | 23 | 17 |
Challans weather by month
How July compares with the rest of the year at a glance. July is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 9° / 6° | 71 | 11.7 | 8.8 | 1.9 |
| Feb | 10° / 5° | 53 | 9.6 | 10 | 2.1 |
| Mar | 12° / 7° | 50 | 10.2 | 11.6 | 3.2 |
| Apr | 14° / 9° | 47 | 10.1 | 13.3 | 4.3 |
| May | 18° / 12° | 52 | 9.9 | 14.8 | 5.6 |
| Jun | 20° / 15° | 39 | 8.3 | 15.6 | 6.5 |
| Jul | 22° / 16° | 37 | 8.1 | 15.3 | 7.2 |
| Aug | 22° / 16° | 43 | 7.6 | 14 | 7.3 |
| Sep | 20° / 14° | 52 | 8.1 | 12.4 | 6.7 |
| Oct | 17° / 12° | 76 | 12.1 | 10.6 | 5.0 |
| Nov | 13° / 9° | 81 | 12.6 | 9.2 | 3.3 |
| Dec | 10° / 6° | 81 | 12.4 | 8.4 | 2.2 |
Cloud cover in July
The sky is clear or mostly clear about 35% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 44%.
| 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 (%) | 52 | 52 | 53 | 53 | 53 | 54 | 54 | 55 | 56 | 56 | 57 | 57 | 58 | 58 | 58 | 58 | 59 | 59 | 59 | 58 | 57 | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 56 |
| Cloudier (%) | 48 | 48 | 47 | 47 | 47 | 46 | 46 | 45 | 44 | 44 | 43 | 43 | 42 | 42 | 42 | 42 | 41 | 41 | 41 | 42 | 43 | 43 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 44 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 52 | 48 |
| 2 | 52 | 48 |
| 3 | 53 | 47 |
| 4 | 53 | 47 |
| 5 | 53 | 47 |
| 6 | 54 | 46 |
| 7 | 54 | 46 |
| 8 | 55 | 45 |
| 9 | 56 | 44 |
| 10 | 56 | 44 |
| 11 | 57 | 43 |
| 12 | 57 | 43 |
| 13 | 58 | 42 |
| 14 | 58 | 42 |
| 15 | 58 | 42 |
| 16 | 58 | 42 |
| 17 | 59 | 41 |
| 18 | 59 | 41 |
| 19 | 59 | 41 |
| 20 | 58 | 42 |
| 21 | 57 | 43 |
| 22 | 57 | 43 |
| 23 | 57 | 43 |
| 24 | 57 | 43 |
| 25 | 57 | 43 |
| 26 | 56 | 44 |
| 27 | 56 | 44 |
| 28 | 56 | 44 |
| 29 | 56 | 44 |
| 30 | 56 | 44 |
| 31 | 56 | 44 |
Chance of precipitation in July
Challans gets around 37 mm of rain over 8.1 wet days in July, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 25% and peaks near 30% 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 (%) | 28 | 29 | 29 | 29 | 30 | 29 | 29 | 29 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 |
| Rain chance (%) | |
|---|---|
| 1 | 28 |
| 2 | 29 |
| 3 | 29 |
| 4 | 29 |
| 5 | 30 |
| 6 | 29 |
| 7 | 29 |
| 8 | 29 |
| 9 | 28 |
| 10 | 27 |
| 11 | 26 |
| 12 | 25 |
| 13 | 24 |
| 14 | 24 |
| 15 | 23 |
| 16 | 23 |
| 17 | 22 |
| 18 | 22 |
| 19 | 22 |
| 20 | 22 |
| 21 | 22 |
| 22 | 23 |
| 23 | 23 |
| 24 | 23 |
| 25 | 23 |
| 26 | 23 |
| 27 | 23 |
| 28 | 23 |
| 29 | 24 |
| 30 | 24 |
| 31 | 24 |
Humidity in July
Most of July feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the comfortable band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.
| 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 (%) | 22 | 21 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 16 | 16 | 15 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 9 | 9 | 9 | 9 |
| Comfortable (%) | 49 | 50 | 51 | 50 | 51 | 51 | 51 | 51 | 51 | 50 | 50 | 49 | 48 | 47 | 46 | 45 | 45 | 44 | 43 | 43 | 42 | 42 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 |
| Humid (%) | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 30 | 31 | 32 | 32 | 33 | 34 | 35 | 35 | 36 | 37 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 |
| Muggy (%) | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 11 | 11 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 22 | 49 | 24 | 5 | 0 |
| 2 | 21 | 50 | 25 | 4 | 0 |
| 3 | 20 | 51 | 25 | 4 | 0 |
| 4 | 20 | 50 | 26 | 4 | 0 |
| 5 | 19 | 51 | 26 | 4 | 0 |
| 6 | 19 | 51 | 27 | 3 | 0 |
| 7 | 19 | 51 | 27 | 3 | 0 |
| 8 | 18 | 51 | 28 | 3 | 0 |
| 9 | 18 | 51 | 28 | 3 | 0 |
| 10 | 18 | 50 | 29 | 3 | 0 |
| 11 | 18 | 50 | 30 | 3 | 0 |
| 12 | 18 | 49 | 31 | 3 | 0 |
| 13 | 17 | 48 | 32 | 3 | 0 |
| 14 | 17 | 47 | 32 | 4 | 0 |
| 15 | 17 | 46 | 33 | 4 | 0 |
| 16 | 16 | 45 | 34 | 5 | 0 |
| 17 | 16 | 45 | 35 | 5 | 0 |
| 18 | 15 | 44 | 35 | 6 | 0 |
| 19 | 14 | 43 | 36 | 6 | 0 |
| 20 | 13 | 43 | 37 | 7 | 0 |
| 21 | 13 | 42 | 38 | 8 | 0 |
| 22 | 12 | 42 | 38 | 8 | 0 |
| 23 | 12 | 41 | 39 | 9 | 0 |
| 24 | 11 | 41 | 39 | 9 | 0 |
| 25 | 11 | 41 | 39 | 9 | 0 |
| 26 | 10 | 41 | 39 | 10 | 0 |
| 27 | 10 | 41 | 39 | 10 | 0 |
| 28 | 9 | 41 | 39 | 11 | 0 |
| 29 | 9 | 41 | 39 | 11 | 0 |
| 30 | 9 | 41 | 39 | 11 | 0 |
| 31 | 9 | 41 | 39 | 11 | 1 |
Wind in July
Winds average 16 km/h in July.
Across July, daily wind ranges from about 15 km/h on the calmest days to 17 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) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 |
| Feels | 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 | 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 | 17 | light breeze |
| 2 | 17 | light breeze |
| 3 | 17 | light breeze |
| 4 | 17 | light breeze |
| 5 | 17 | light breeze |
| 6 | 17 | light breeze |
| 7 | 17 | light breeze |
| 8 | 17 | light breeze |
| 9 | 17 | light breeze |
| 10 | 17 | light breeze |
| 11 | 17 | light breeze |
| 12 | 17 | light breeze |
| 13 | 17 | light breeze |
| 14 | 16 | light breeze |
| 15 | 16 | light breeze |
| 16 | 16 | light breeze |
| 17 | 16 | light breeze |
| 18 | 16 | light breeze |
| 19 | 16 | light breeze |
| 20 | 16 | light breeze |
| 21 | 16 | light breeze |
| 22 | 16 | light breeze |
| 23 | 16 | light breeze |
| 24 | 16 | light breeze |
| 25 | 16 | light breeze |
| 26 | 16 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 15 | light breeze |
| 31 | 15 | light breeze |
Sunrise & sunset in July
Daylight runs from about 15 h 36 min at the start of July to 14 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 48 minutes over July. Sunrise moves from 5:22 AM to 5:50 AM, and sunset from 9:00 PM to 8:37 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) | 15.6 | 15.6 | 15.6 | 15.6 | 15.6 | 15.6 | 15.5 | 15.5 | 15.5 | 15.5 | 15.5 | 15.4 | 15.4 | 15.4 | 15.3 | 15.3 | 15.3 | 15.3 | 15.2 | 15.2 | 15.2 | 15.1 | 15.1 | 15.1 | 15.0 | 15.0 | 14.9 | 14.9 | 14.9 | 14.8 | 14.8 |
| Sunrise (AM) | 5:22 | 5:23 | 5:23 | 5:24 | 5:24 | 5:25 | 5:26 | 5:27 | 5:27 | 5:28 | 5:29 | 5:30 | 5:31 | 5:32 | 5:33 | 5:33 | 5:34 | 5:35 | 5:36 | 5:38 | 5:39 | 5:40 | 5:41 | 5:42 | 5:43 | 5:44 | 5:45 | 5:46 | 5:48 | 5:49 | 5:50 |
| Sunset (PM) | 9:00 | 8:59 | 8:59 | 8:59 | 8:59 | 8:58 | 8:58 | 8:58 | 8:57 | 8:57 | 8:56 | 8:56 | 8:55 | 8:54 | 8:54 | 8:53 | 8:52 | 8:51 | 8:50 | 8:49 | 8:48 | 8:47 | 8:46 | 8:45 | 8:44 | 8:43 | 8:42 | 8:41 | 8:40 | 8:38 | 8:37 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 15.6 | 5:22 | 9:00 |
| 2 | 15.6 | 5:23 | 8:59 |
| 3 | 15.6 | 5:23 | 8:59 |
| 4 | 15.6 | 5:24 | 8:59 |
| 5 | 15.6 | 5:24 | 8:59 |
| 6 | 15.6 | 5:25 | 8:58 |
| 7 | 15.5 | 5:26 | 8:58 |
| 8 | 15.5 | 5:27 | 8:58 |
| 9 | 15.5 | 5:27 | 8:57 |
| 10 | 15.5 | 5:28 | 8:57 |
| 11 | 15.5 | 5:29 | 8:56 |
| 12 | 15.4 | 5:30 | 8:56 |
| 13 | 15.4 | 5:31 | 8:55 |
| 14 | 15.4 | 5:32 | 8:54 |
| 15 | 15.3 | 5:33 | 8:54 |
| 16 | 15.3 | 5:33 | 8:53 |
| 17 | 15.3 | 5:34 | 8:52 |
| 18 | 15.3 | 5:35 | 8:51 |
| 19 | 15.2 | 5:36 | 8:50 |
| 20 | 15.2 | 5:38 | 8:49 |
| 21 | 15.2 | 5:39 | 8:48 |
| 22 | 15.1 | 5:40 | 8:47 |
| 23 | 15.1 | 5:41 | 8:46 |
| 24 | 15.1 | 5:42 | 8:45 |
| 25 | 15.0 | 5:43 | 8:44 |
| 26 | 15.0 | 5:44 | 8:43 |
| 27 | 14.9 | 5:45 | 8:42 |
| 28 | 14.9 | 5:46 | 8:41 |
| 29 | 14.9 | 5:48 | 8:40 |
| 30 | 14.8 | 5:49 | 8:38 |
| 31 | 14.8 | 5:50 | 8:37 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 6.18 kWh/m².
For context, solar energy here swings from a low near 1.04 kWh/m² to a high of 6.28 kWh/m² in June across the year — July's 6.18 kWh/m² sits near the top of that range.
| 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) | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.3 | 6.2 | 6.2 | 6.2 | 6.2 | 6.2 | 6.1 | 6.1 | 6.1 | 6.0 | 6.0 | 6.0 | 6.0 | 5.9 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 6.3 | Intense |
| 2 | 6.3 | Intense |
| 3 | 6.3 | Intense |
| 4 | 6.3 | Intense |
| 5 | 6.3 | Intense |
| 6 | 6.3 | Intense |
| 7 | 6.3 | Intense |
| 8 | 6.3 | Intense |
| 9 | 6.3 | Intense |
| 10 | 6.3 | Intense |
| 11 | 6.3 | Intense |
| 12 | 6.3 | Intense |
| 13 | 6.3 | Intense |
| 14 | 6.3 | Intense |
| 15 | 6.3 | Intense |
| 16 | 6.3 | Intense |
| 17 | 6.3 | Intense |
| 18 | 6.3 | Intense |
| 19 | 6.2 | Intense |
| 20 | 6.2 | Intense |
| 21 | 6.2 | Intense |
| 22 | 6.2 | Intense |
| 23 | 6.2 | Intense |
| 24 | 6.1 | Intense |
| 25 | 6.1 | Intense |
| 26 | 6.1 | Intense |
| 27 | 6.0 | Intense |
| 28 | 6.0 | Intense |
| 29 | 6.0 | Bright |
| 30 | 6.0 | Bright |
| 31 | 5.9 | Bright |
Is July a good time to visit Challans?
Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
July is one of the better times to visit Challans for general sightseeing.
What to pack for Challans in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Challans sees daytime highs around 22°C and nights near 16°C. Pack sun protection. Worth having: light clothes and rain gear. About 8 days see rain.
Sea temperature near Challans in July
The nearest coast averages about 18°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in August at about 19°C and coldest in February near 9°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 | 9 | 10 | 12 | 14 | 17 | 18 | 19 | 18 | 16 | 14 | 11 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Cool | Cool | Bracing | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 9 | Bracing |
| Mar | 10 | Bracing |
| Apr | 12 | Bracing |
| May | 14 | Bracing |
| Jun | 17 | Cool |
| Jul | 18 | Cool |
| Aug | 19 | Cool |
| Sep | 18 | Cool |
| Oct | 16 | Cool |
| Nov | 14 | Bracing |
| Dec | 11 | Bracing |
UV index in Challans in July
Clear-sky midday UV in July 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 Challans peaks around August 10 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 | 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 | High |
| Aug | 7 | Very high |
| Sep | 5 | Moderate |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Challans?
Challans sits at 46.8°N, 1.9°W, 13 m above sea level, in France. The nearest listed city is Les Sables-d'Olonne, 39 km away.
Topography around Challans
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Challans.
Within 3 km, the terrain around Challans has only modest variations in elevation — a maximum elevation change of 44 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 84 m; within 80 km, significant variations in elevation — a maximum elevation change of 340 m.
The land around Challans is covered by grassland (37%), artificial surfaces (30%) and trees (26%) within 3 km, grassland (54%) and cropland (22%) within 16 km, and water (36%), grassland (26%) and cropland (22%) 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 Challans (46.8458°, -1.8794°, elevation 13 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).