Challans weather in April

In April, Challans sees average daytime highs of 14°C and overnight lows near 9°C, with 47 mm of rain across 10.1 wet days and about 13.3 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 16°C by the end. The sky is clear or mostly clear about 27% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 30 min at the start of April to 14 h 06 min by month's end. Set against the rest of the year, April is Challans's 5th-clearest and 6th-windiest month. For the whole year in context, see Challans's year-round climate.

Daytime high: 14°; 7th warmest
Overnight low: 9°; 6th coldest
Rainfall: 47 mm; 10.1 wet days
Daylight: 13 h 18 min; 6:27 AM – 7:48 PM
Cloud cover: 61%; 5th clearest
Wind: 18 km/h; 6th windiest
Solar energy: 4.91 kWh/m²
Travel score: 4.3; out of 10

Challans is human settlement in France.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← March Challans year-round climate May →Best places to visit in April

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 16°C by the end.

A typical April day in Challans reaches about 14°C in the afternoon and slips back to 9°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 19°C. Set against its neighbours, April runs about 2°C warmer than March and about 3°C cooler than May.

	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
Avg high (°C)	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16
Avg low (°C)	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10

	Avg high (°C)	Avg low (°C)
1	13	8
2	13	8
3	13	8
4	13	8
5	14	8
6	14	8
7	14	8
8	14	8
9	14	8
10	14	8
11	14	8
12	14	8
13	14	8
14	14	8
15	14	8
16	15	9
17	15	9
18	15	9
19	15	9
20	15	9
21	15	9
22	15	9
23	15	9
24	15	10
25	15	10
26	15	10
27	15	10
28	16	10
29	16	10
30	16	10

Challans weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 9th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

	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
Clearer (%)	44	44	45	45	47	47	47	47	47	48	48	48	49	49	49	48	48	46	45	44	44	43	42	41	39	39	38	37	37	37
Cloudier (%)	56	56	55	55	53	53	53	53	53	52	52	52	51	51	51	52	52	54	55	56	56	57	58	59	61	61	62	63	63	63

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	45	55
5	47	53
6	47	53
7	47	53
8	47	53
9	47	53
10	48	52
11	48	52
12	48	52
13	49	51
14	49	51
15	49	51
16	48	52
17	48	52
18	46	54
19	45	55
20	44	56
21	44	56
22	43	57
23	42	58
24	41	59
25	39	61
26	39	61
27	38	62
28	37	63
29	37	63
30	37	63

Chance of precipitation in April

Any precipitation

Challans gets around 47 mm of rain over 10.1 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 38% 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
Rain chance (%)	37	36	36	35	34	33	33	32	31	30	30	29	29	29	29	29	30	30	31	32	33	34	35	36	37	37	38	38	38	38

	Rain chance (%)
1	37
2	36
3	36
4	35
5	34
6	33
7	33
8	32
9	31
10	30
11	30
12	29
13	29
14	29
15	29
16	29
17	30
18	30
19	31
20	32
21	33
22	34
23	35
24	36
25	37
26	37
27	38
28	38
29	38
30	38

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, April lands in the dry band about 97% 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
Dry (%)	100	100	100	100	100	100	100	99	99	99	99	99	99	99	99	98	98	98	97	97	97	96	96	95	94	93	92	91	90	89
Comfortable (%)	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	2	2	2	3	3	3	4	4	5	6	7	8	9	10	11

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	97	3
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	92	8
28	91	9
29	90	10
30	89	11

Wind in April

Winds average 18 km/h in April.

Across April, daily wind ranges from about 17 km/h on the calmest days to 19 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
Wind speed (km/h)	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18	18	18	18	18	17	17	17	17	17	17	17	17	17
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

	Wind speed (km/h)	Feels
1	19	light breeze
2	19	light breeze
3	19	light breeze
4	19	light breeze
5	19	light breeze
6	19	light breeze
7	19	light breeze
8	18	light breeze
9	18	light breeze
10	18	light breeze
11	18	light breeze
12	18	light breeze
13	18	light breeze
14	18	light breeze
15	18	light breeze
16	18	light breeze
17	18	light breeze
18	18	light breeze
19	18	light breeze
20	18	light breeze
21	18	light breeze
22	17	light breeze
23	17	light breeze
24	17	light breeze
25	17	light breeze
26	17	light breeze
27	17	light breeze
28	17	light breeze
29	17	light breeze
30	17	light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 96 minutes over April. Sunrise moves from 6:57 AM to 6:02 AM, and sunset from 7:27 PM to 8:07 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
Daylight (h)	12.5	12.6	12.6	12.7	12.7	12.8	12.8	12.9	13.0	13.0	13.1	13.1	13.2	13.2	13.3	13.3	13.4	13.5	13.5	13.6	13.6	13.7	13.7	13.8	13.8	13.9	13.9	14.0	14.0	14.1
Sunrise (AM)	6:57	6:55	6:53	6:51	6:49	6:47	6:45	6:43	6:41	6:39	6:37	6:35	6:33	6:31	6:29	6:27	6:26	6:24	6:22	6:20	6:18	6:16	6:14	6:13	6:11	6:09	6:07	6:06	6:04	6:02
Sunset (PM)	7:27	7:29	7:30	7:31	7:33	7:34	7:36	7:37	7:38	7:40	7:41	7:43	7:44	7:45	7:47	7:48	7:49	7:51	7:52	7:54	7:55	7:56	7:58	7:59	8:01	8:02	8:03	8:05	8:06	8:07

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	6:57	7:27
2	12.6	6:55	7:29
3	12.6	6:53	7:30
4	12.7	6:51	7:31
5	12.7	6:49	7:33
6	12.8	6:47	7:34
7	12.8	6:45	7:36
8	12.9	6:43	7:37
9	13.0	6:41	7:38
10	13.0	6:39	7:40
11	13.1	6:37	7:41
12	13.1	6:35	7:43
13	13.2	6:33	7:44
14	13.2	6:31	7:45
15	13.3	6:29	7:47
16	13.3	6:27	7:48
17	13.4	6:26	7:49
18	13.5	6:24	7:51
19	13.5	6:22	7:52
20	13.6	6:20	7:54
21	13.6	6:18	7:55
22	13.7	6:16	7:56
23	13.7	6:14	7:58
24	13.8	6:13	7:59
25	13.8	6:11	8:01
26	13.9	6:09	8:02
27	13.9	6:07	8:03
28	14.0	6:06	8:05
29	14.0	6:04	8:06
30	14.1	6:02	8:07

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.91 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 — April's 4.91 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
Solar energy (kWh/m²)	4.3	4.3	4.4	4.4	4.5	4.5	4.6	4.7	4.7	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.3	5.3
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

	Solar energy (kWh/m²)	Level
1	4.3	Bright
2	4.3	Bright
3	4.4	Bright
4	4.4	Bright
5	4.5	Bright
6	4.5	Bright
7	4.6	Bright
8	4.7	Bright
9	4.7	Bright
10	4.8	Bright
11	4.8	Bright
12	4.9	Bright
13	4.9	Bright
14	5.0	Bright
15	5.0	Bright
16	5.0	Bright
17	5.1	Bright
18	5.1	Bright
19	5.1	Bright
20	5.1	Bright
21	5.2	Bright
22	5.2	Bright
23	5.2	Bright
24	5.2	Bright
25	5.2	Bright
26	5.2	Bright
27	5.2	Bright
28	5.2	Bright
29	5.3	Bright
30	5.3	Bright

Planning a trip in April

Is April a good time to visit Challans?

Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.3

Sightseeing

7th-best month of the year

0.1

Beach & pool

7th-best month of the year

April is a reasonable time to visit Challans for sightseeing.

What to pack for Challans in April

From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In April, Challans sees daytime highs around 14°C and nights near 9°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Challans in April

The nearest coast averages about 12°C in April — 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 April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 5 — 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

Location & terrain

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.

3 km

44 m

grassland 37%

16 km

84 m

grassland 54%

80 km

340 m

water 36%

treesgrasslandcroplandartificial surfaceswaterwetland

← March Challans year-round climate May →Best places to visit in April

April weather nearby: Les Sables-d'Olonne 39 km · La Roche-sur-Yon 40 km · Bouguenais 42 km · Couëron 43 km · Saint-Herblain 44 km · Rezé 45 km · Vertou 47 km · Nantes 48 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).

	Avg high (°C)	Avg low (°C)
1	13	8
2	13	8
3	13	8
4	13	8
5	14	8
6	14	8
7	14	8
8	14	8
9	14	8
10	14	8
11	14	8
12	14	8
13	14	8
14	14	8
15	14	8
16	15	9
17	15	9
18	15	9
19	15	9
20	15	9
21	15	9
22	15	9
23	15	9
24	15	10
25	15	10
26	15	10
27	15	10
28	16	10
29	16	10
30	16	10

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	45	55
5	47	53
6	47	53
7	47	53
8	47	53
9	47	53
10	48	52
11	48	52
12	48	52
13	49	51
14	49	51
15	49	51
16	48	52
17	48	52
18	46	54
19	45	55
20	44	56
21	44	56
22	43	57
23	42	58
24	41	59
25	39	61
26	39	61
27	38	62
28	37	63
29	37	63
30	37	63

	Rain chance (%)
1	37
2	36
3	36
4	35
5	34
6	33
7	33
8	32
9	31
10	30
11	30
12	29
13	29
14	29
15	29
16	29
17	30
18	30
19	31
20	32
21	33
22	34
23	35
24	36
25	37
26	37
27	38
28	38
29	38
30	38

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	97	3
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	92	8
28	91	9
29	90	10
30	89	11

	Avg high (°C)	Avg low (°C)
1	13	8
2	13	8
3	13	8
4	13	8
5	14	8
6	14	8
7	14	8
8	14	8
9	14	8
10	14	8
11	14	8
12	14	8
13	14	8
14	14	8
15	14	8
16	15	9
17	15	9
18	15	9
19	15	9
20	15	9
21	15	9
22	15	9
23	15	9
24	15	10
25	15	10
26	15	10
27	15	10
28	16	10
29	16	10
30	16	10

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	45	55
5	47	53
6	47	53
7	47	53
8	47	53
9	47	53
10	48	52
11	48	52
12	48	52
13	49	51
14	49	51
15	49	51
16	48	52
17	48	52
18	46	54
19	45	55
20	44	56
21	44	56
22	43	57
23	42	58
24	41	59
25	39	61
26	39	61
27	38	62
28	37	63
29	37	63
30	37	63

	Rain chance (%)
1	37
2	36
3	36
4	35
5	34
6	33
7	33
8	32
9	31
10	30
11	30
12	29
13	29
14	29
15	29
16	29
17	30
18	30
19	31
20	32
21	33
22	34
23	35
24	36
25	37
26	37
27	38
28	38
29	38
30	38

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	97	3
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	92	8
28	91	9
29	90	10
30	89	11

	Avg high (°C)	Avg low (°C)
1	13	8
2	13	8
3	13	8
4	13	8
5	14	8
6	14	8
7	14	8
8	14	8
9	14	8
10	14	8
11	14	8
12	14	8
13	14	8
14	14	8
15	14	8
16	15	9
17	15	9
18	15	9
19	15	9
20	15	9
21	15	9
22	15	9
23	15	9
24	15	10
25	15	10
26	15	10
27	15	10
28	16	10
29	16	10
30	16	10

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	45	55
5	47	53
6	47	53
7	47	53
8	47	53
9	47	53
10	48	52
11	48	52
12	48	52
13	49	51
14	49	51
15	49	51
16	48	52
17	48	52
18	46	54
19	45	55
20	44	56
21	44	56
22	43	57
23	42	58
24	41	59
25	39	61
26	39	61
27	38	62
28	37	63
29	37	63
30	37	63

	Rain chance (%)
1	37
2	36
3	36
4	35
5	34
6	33
7	33
8	32
9	31
10	30
11	30
12	29
13	29
14	29
15	29
16	29
17	30
18	30
19	31
20	32
21	33
22	34
23	35
24	36
25	37
26	37
27	38
28	38
29	38
30	38

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	98	2
17	98	2
18	98	2
19	97	3
20	97	3
21	97	3
22	96	4
23	96	4
24	95	5
25	94	6
26	93	7
27	92	8
28	91	9
29	90	10
30	89	11