Saint Helier weather in April

In April, Saint Helier sees average daytime highs of 11°C and overnight lows near 9°C, with 57 mm of rain across 10.5 wet days and about 13.4 hours of daylight. It is the 8th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 10°C in the first days to 12°C by the end. The sky is clear or mostly clear about 30% 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 18 min by month's end. Set against the rest of the year, April is Saint Helier's 5th-clearest and 8th-windiest month. For the whole year in context, see Saint Helier's year-round climate.

Daytime high: 11°; 8th warmest
Overnight low: 9°; 5th coldest
Rainfall: 57 mm; 10.5 wet days
Daylight: 13 h 30 min; 5:25 AM – 6:52 PM
Cloud cover: 59%; 5th clearest
Wind: 23 km/h; 8th windiest
Solar energy: 4.84 kWh/m²
Travel score: 2.7; out of 10

Saint Helier is one of the twelve parishes and capital of Jersey in the Channel Islands.

Density: 2,642/km²; people per km²

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

← March Saint Helier 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 10°C in the first days to 12°C by the end.

A typical April day in Saint Helier reaches about 11°C in the afternoon and slips back to 9°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 13°C. Set against its neighbours, April runs about 2°C warmer than March and about 2°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)	10	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12
Avg low (°C)	8	8	8	8	8	8	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10

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

Saint Helier weather by month

How April compares with the rest of the year at a glance. April is the 8th-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° / 7°	110	15.8	8.5	1.5
Feb	9° / 7°	81	12.9	9.8	1.4
Mar	9° / 8°	69	12.4	11.6	1.9
Apr	11° / 9°	57	10.5	13.4	2.7
May	13° / 11°	53	9.4	15	3.8
Jun	16° / 14°	50	8.7	15.9	5.0
Jul	18° / 16°	48	9.1	15.6	6.0
Aug	18° / 17°	63	9.8	14.2	6.1
Sep	17° / 16°	77	11	12.4	5.5
Oct	15° / 13°	122	15.5	10.5	4.0
Nov	12° / 10°	132	17.6	8.9	2.7
Dec	10° / 8°	138	16.7	8.1	1.9

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 52%. 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 (%)	46	48	48	49	50	50	51	51	52	52	53	53	53	53	52	52	51	50	50	49	48	47	46	45	44	43	43	42	42	41
Cloudier (%)	54	52	52	51	50	50	49	49	48	48	47	47	47	47	48	48	49	50	50	51	52	53	54	55	56	57	57	58	58	59

	Clearer (%)	Cloudier (%)
1	46	54
2	48	52
3	48	52
4	49	51
5	50	50
6	50	50
7	51	49
8	51	49
9	52	48
10	52	48
11	53	47
12	53	47
13	53	47
14	53	47
15	52	48
16	52	48
17	51	49
18	50	50
19	50	50
20	49	51
21	48	52
22	47	53
23	46	54
24	45	55
25	44	56
26	43	57
27	43	57
28	42	58
29	42	58
30	41	59

Chance of precipitation in April

Any precipitation

Saint Helier gets around 57 mm of rain over 10.5 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 34% and peaks near 39% 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 (%)	39	38	38	37	36	35	35	34	33	32	32	31	31	30	30	31	31	32	32	33	34	35	35	36	36	36	36	36	36	36

	Rain chance (%)
1	39
2	38
3	38
4	37
5	36
6	35
7	35
8	34
9	33
10	32
11	32
12	31
13	31
14	30
15	30
16	31
17	31
18	32
19	32
20	33
21	34
22	35
23	35
24	36
25	36
26	36
27	36
28	36
29	36
30	36

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 100% 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	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in April

Winds average 23 km/h in April.

Across April, daily wind ranges from about 23 km/h on the calmest days to 25 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)	25	25	25	25	24	24	24	24	24	24	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 30 min at the start of April to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 108 minutes over April. Sunrise moves from 5:57 AM to 4:58 AM, and sunset from 6:29 PM to 7:14 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	12.7	12.7	12.8	12.9	12.9	13.0	13.0	13.1	13.2	13.2	13.3	13.3	13.4	13.5	13.5	13.6	13.6	13.7	13.8	13.8	13.9	13.9	14.0	14.0	14.1	14.2	14.2	14.3
Sunrise (AM)	5:57	5:55	5:52	5:50	5:48	5:46	5:44	5:42	5:39	5:37	5:35	5:33	5:31	5:29	5:27	5:25	5:23	5:21	5:19	5:17	5:15	5:13	5:11	5:09	5:07	5:05	5:03	5:01	5:00	4:58
Sunset (PM)	6:29	6:31	6:32	6:34	6:36	6:37	6:39	6:40	6:42	6:43	6:45	6:46	6:48	6:49	6:51	6:52	6:54	6:56	6:57	6:59	7:00	7:02	7:03	7:05	7:06	7:08	7:09	7:11	7:12	7:14

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.5	5:57	6:29
2	12.6	5:55	6:31
3	12.7	5:52	6:32
4	12.7	5:50	6:34
5	12.8	5:48	6:36
6	12.9	5:46	6:37
7	12.9	5:44	6:39
8	13.0	5:42	6:40
9	13.0	5:39	6:42
10	13.1	5:37	6:43
11	13.2	5:35	6:45
12	13.2	5:33	6:46
13	13.3	5:31	6:48
14	13.3	5:29	6:49
15	13.4	5:27	6:51
16	13.5	5:25	6:52
17	13.5	5:23	6:54
18	13.6	5:21	6:56
19	13.6	5:19	6:57
20	13.7	5:17	6:59
21	13.8	5:15	7:00
22	13.8	5:13	7:02
23	13.9	5:11	7:03
24	13.9	5:09	7:05
25	14.0	5:07	7:06
26	14.0	5:05	7:08
27	14.1	5:03	7:09
28	14.2	5:01	7:11
29	14.2	5:00	7:12
30	14.3	4:58	7:14

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.84 kWh/m².

For context, solar energy here swings from a low near 0.83 kWh/m² to a high of 6.27 kWh/m² in June across the year — April's 4.84 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)	4.1	4.2	4.2	4.3	4.4	4.4	4.5	4.6	4.6	4.7	4.7	4.8	4.8	4.9	4.9	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	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	4.1	Bright
2	4.2	Bright
3	4.2	Bright
4	4.3	Bright
5	4.4	Bright
6	4.4	Bright
7	4.5	Bright
8	4.6	Bright
9	4.6	Bright
10	4.7	Bright
11	4.7	Bright
12	4.8	Bright
13	4.8	Bright
14	4.9	Bright
15	4.9	Bright
16	5.0	Bright
17	5.0	Bright
18	5.0	Bright
19	5.0	Bright
20	5.1	Bright
21	5.1	Bright
22	5.1	Bright
23	5.1	Bright
24	5.1	Bright
25	5.2	Bright
26	5.2	Bright
27	5.2	Bright
28	5.2	Bright
29	5.2	Bright
30	5.3	Bright

Planning a trip in April

Hazard calendar for Saint Helier

In seasonPeak

None of Saint Helier's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Saint Helier's rainy season runs August–March, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is April a good time to visit Saint Helier?

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

2.7

Sightseeing

7th-best month of the year

0.0

Beach & pool

8th-best month of the year

April is a weaker month for outdoor sightseeing in Saint Helier.

What to pack for Saint Helier in April

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

In April, Saint Helier sees daytime highs around 11°C and nights near 9°C. Pack a warm layer. Worth having: rain gear, sun protection and a windbreaker. About 11 days see rain.

a warm layerrain gearsun protectiona windbreaker

Sea temperature near Saint Helier in April

The nearest coast averages about 10°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 18°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	9	10	12	15	17	18	18	16	14	11
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Cool	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	10	Bracing
Feb	9	Bracing
Mar	9	Bracing
Apr	10	Bracing
May	12	Bracing
Jun	15	Bracing
Jul	17	Cool
Aug	18	Cool
Sep	18	Cool
Oct	16	Cool
Nov	14	Bracing
Dec	11	Bracing

UV index in Saint Helier 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 Saint Helier peaks around August 13 at about 7 (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 6 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	2	3	5	6	7	6	7	5	3	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	2	Low
Mar	3	Moderate
Apr	5	Moderate
May	6	High
Jun	7	High
Jul	6	High
Aug	7	High
Sep	5	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Saint Helier?

Saint Helier sits at 49.2°N, 2.1°W, 11 m above sea level, in Jersey. The nearest listed city is Saint Peter Port, 43 km away.

Topography around Saint Helier

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Saint Helier.

Within 3 km, the terrain around Saint Helier has only modest variations in elevation — a maximum elevation change of 100 m around an average of 31 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 137 m; within 80 km, significant variations in elevation — a maximum elevation change of 290 m.

The land around Saint Helier is covered by water (32%), trees (22%) and artificial surfaces (21%) within 3 km, water (85%) within 16 km, and water (68%) within 80 km.

3 km

100 m

water 32%

16 km

137 m

water 85%

80 km

290 m

water 68%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

April weather nearby: Saint Peter Port 43 km · Octeville 59 km · Saint-Malo 61 km · Équeurdreville-Hainneville 61 km · Cherbourg 61 km · Tourlaville 63 km · Saint-Lô 74 km · Saint-Brieuc 89 km

Jersey travel facts

Power plugs: Type G; 230 V · 50 Hz
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 Saint Helier (49.188°, -2.1049°, elevation 11 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	10	8
2	10	8
3	10	8
4	10	8
5	10	8
6	10	8
7	10	8
8	10	8
9	11	8
10	11	9
11	11	9
12	11	9
13	11	9
14	11	9
15	11	9
16	11	9
17	11	9
18	11	9
19	11	9
20	11	9
21	11	9
22	11	9
23	12	10
24	12	10
25	12	10
26	12	10
27	12	10
28	12	10
29	12	10
30	12	10

	Clearer (%)	Cloudier (%)
1	46	54
2	48	52
3	48	52
4	49	51
5	50	50
6	50	50
7	51	49
8	51	49
9	52	48
10	52	48
11	53	47
12	53	47
13	53	47
14	53	47
15	52	48
16	52	48
17	51	49
18	50	50
19	50	50
20	49	51
21	48	52
22	47	53
23	46	54
24	45	55
25	44	56
26	43	57
27	43	57
28	42	58
29	42	58
30	41	59

	Rain chance (%)
1	39
2	38
3	38
4	37
5	36
6	35
7	35
8	34
9	33
10	32
11	32
12	31
13	31
14	30
15	30
16	31
17	31
18	32
19	32
20	33
21	34
22	35
23	35
24	36
25	36
26	36
27	36
28	36
29	36
30	36

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	46	54
2	48	52
3	48	52
4	49	51
5	50	50
6	50	50
7	51	49
8	51	49
9	52	48
10	52	48
11	53	47
12	53	47
13	53	47
14	53	47
15	52	48
16	52	48
17	51	49
18	50	50
19	50	50
20	49	51
21	48	52
22	47	53
23	46	54
24	45	55
25	44	56
26	43	57
27	43	57
28	42	58
29	42	58
30	41	59

	Rain chance (%)
1	39
2	38
3	38
4	37
5	36
6	35
7	35
8	34
9	33
10	32
11	32
12	31
13	31
14	30
15	30
16	31
17	31
18	32
19	32
20	33
21	34
22	35
23	35
24	36
25	36
26	36
27	36
28	36
29	36
30	36

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	46	54
2	48	52
3	48	52
4	49	51
5	50	50
6	50	50
7	51	49
8	51	49
9	52	48
10	52	48
11	53	47
12	53	47
13	53	47
14	53	47
15	52	48
16	52	48
17	51	49
18	50	50
19	50	50
20	49	51
21	48	52
22	47	53
23	46	54
24	45	55
25	44	56
26	43	57
27	43	57
28	42	58
29	42	58
30	41	59

	Rain chance (%)
1	39
2	38
3	38
4	37
5	36
6	35
7	35
8	34
9	33
10	32
11	32
12	31
13	31
14	30
15	30
16	31
17	31
18	32
19	32
20	33
21	34
22	35
23	35
24	36
25	36
26	36
27	36
28	36
29	36
30	36

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100