Saint Helier weather in October

In October, Saint Helier sees average daytime highs of 15°C and overnight lows near 13°C, with 122 mm of rain across 15.5 wet days and about 10.5 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 14°C by the end. The sky is clear or mostly clear about 17% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of October to 9 h 36 min by month's end. Set against the rest of the year, October is Saint Helier's 8th-clearest and 5th-windiest month. For the whole year in context, see Saint Helier's year-round climate.

Daytime high: 15°; 5th warmest
Overnight low: 13°; 8th coldest
Rainfall: 122 mm; 15.5 wet days
Daylight: 10 h 30 min; 6:38 AM – 5:09 PM
Cloud cover: 68%; 8th clearest
Wind: 27 km/h; 5th windiest
Solar energy: 2.17 kWh/m²
Travel score: 4.0; 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.

← September Saint Helier year-round climate November →Best places to visit in October

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

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 16°C in the first days to 14°C by the end.

A typical October day in Saint Helier reaches about 15°C in the afternoon and slips back to 13°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 17°C. Set against its neighbours, October runs about 2°C cooler than September and about 3°C warmer than November.

	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)	17	16	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15	15	15	15	15	15	15	15	15	14	14	14	14	14	14
Avg low (°C)	15	15	14	14	14	14	14	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12

	Avg high (°C)	Avg low (°C)
1	17	15
2	16	15
3	16	14
4	16	14
5	16	14
6	16	14
7	16	14
8	16	14
9	16	14
10	16	14
11	16	14
12	16	14
13	16	14
14	15	14
15	15	13
16	15	13
17	15	13
18	15	13
19	15	13
20	15	13
21	15	13
22	15	13
23	15	13
24	15	13
25	15	13
26	14	12
27	14	12
28	14	12
29	14	12
30	14	12
31	14	12

Saint Helier weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 3rd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 19% of October, with mostly cloudy or overcast conditions the remaining 64%.

	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 (%)	39	38	37	37	36	36	35	35	36	36	37	37	37	37	37	37	37	36	36	35	35	35	35	34	34	34	34	33	33	33	33
Cloudier (%)	61	62	63	63	64	64	65	65	64	64	63	63	63	63	63	63	63	64	64	65	65	65	65	66	66	66	66	67	67	67	67

	Clearer (%)	Cloudier (%)
1	39	61
2	38	62
3	37	63
4	37	63
5	36	64
6	36	64
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	35	65
21	35	65
22	35	65
23	35	65
24	34	66
25	34	66
26	34	66
27	34	66
28	33	67
29	33	67
30	33	67
31	33	67

Chance of precipitation in October

Any precipitation

Saint Helier gets around 122 mm of rain over 15.5 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 50% and peaks near 56% 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 (%)	49	49	49	50	49	49	49	48	48	47	47	47	47	47	48	48	48	49	49	50	51	51	52	52	53	53	54	54	55	55	56

	Rain chance (%)
1	49
2	49
3	49
4	50
5	49
6	49
7	49
8	48
9	48
10	47
11	47
12	47
13	47
14	47
15	48
16	48
17	48
18	49
19	49
20	50
21	51
22	51
23	52
24	52
25	53
26	53
27	54
28	54
29	55
30	55
31	56

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 75% 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 (%)	60	61	61	63	64	65	65	67	68	69	69	71	72	73	74	74	75	76	78	79	80	81	82	82	83	84	85	86	87	88	88
Comfortable (%)	36	35	35	34	33	32	32	31	30	29	29	28	27	26	25	25	24	23	22	21	20	19	18	18	17	16	15	14	13	12	12
Humid (%)	4	4	4	3	3	3	3	2	2	2	2	1	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)	Humid (%)
1	60	36	4
2	61	35	4
3	61	35	4
4	63	34	3
5	64	33	3
6	65	32	3
7	65	32	3
8	67	31	2
9	68	30	2
10	69	29	2
11	69	29	2
12	71	28	1
13	72	27	1
14	73	26	1
15	74	25	1
16	74	25	1
17	75	24	1
18	76	23	1
19	78	22	0
20	79	21	0
21	80	20	0
22	81	19	0
23	82	18	0
24	82	18	0
25	83	17	0
26	84	16	0
27	85	15	0
28	86	14	0
29	87	13	0
30	88	12	0
31	88	12	0

Wind in October

Winds average 27 km/h in October.

Across October, daily wind ranges from about 25 km/h on the calmest days to 30 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)	25	26	26	26	26	26	26	26	26	26	26	26	27	27	27	27	27	27	27	28	28	28	28	29	29	29	29	29	29	29	30
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	windy	windy	windy	windy	windy

	Wind speed (km/h)	Feels
1	25	breezy
2	26	breezy
3	26	breezy
4	26	breezy
5	26	breezy
6	26	breezy
7	26	breezy
8	26	breezy
9	26	breezy
10	26	breezy
11	26	breezy
12	26	breezy
13	27	breezy
14	27	breezy
15	27	breezy
16	27	breezy
17	27	breezy
18	27	breezy
19	27	breezy
20	28	breezy
21	28	breezy
22	28	breezy
23	28	breezy
24	29	breezy
25	29	breezy
26	29	breezy
27	29	windy
28	29	windy
29	29	windy
30	29	windy
31	30	windy

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 24 min at the start of October to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over October. Sunrise moves from 6:15 AM to 7:03 AM, and sunset from 5:40 PM to 4:41 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)	11.4	11.4	11.3	11.2	11.2	11.1	11.1	11.0	10.9	10.9	10.8	10.8	10.7	10.6	10.6	10.5	10.5	10.4	10.3	10.3	10.2	10.2	10.1	10.0	10.0	9.9	9.9	9.8	9.8	9.7	9.6
Sunrise (AM)	6:15	6:16	6:18	6:19	6:21	6:22	6:24	6:26	6:27	6:29	6:30	6:32	6:33	6:35	6:37	6:38	6:40	6:41	6:43	6:45	6:46	6:48	6:49	6:51	6:53	6:54	6:56	6:58	6:59	7:01	7:03
Sunset (PM)	5:40	5:38	5:36	5:34	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	4:59	4:57	4:55	4:54	4:52	4:50	4:48	4:46	4:45	4:43	4:41

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.4	6:15	5:40
2	11.4	6:16	5:38
3	11.3	6:18	5:36
4	11.2	6:19	5:34
5	11.2	6:21	5:31
6	11.1	6:22	5:29
7	11.1	6:24	5:27
8	11.0	6:26	5:25
9	10.9	6:27	5:23
10	10.9	6:29	5:21
11	10.8	6:30	5:19
12	10.8	6:32	5:17
13	10.7	6:33	5:15
14	10.6	6:35	5:13
15	10.6	6:37	5:11
16	10.5	6:38	5:09
17	10.5	6:40	5:07
18	10.4	6:41	5:05
19	10.3	6:43	5:03
20	10.3	6:45	5:01
21	10.2	6:46	4:59
22	10.2	6:48	4:57
23	10.1	6:49	4:55
24	10.0	6:51	4:54
25	10.0	6:53	4:52
26	9.9	6:54	4:50
27	9.9	6:56	4:48
28	9.8	6:58	4:46
29	9.8	6:59	4:45
30	9.7	7:01	4:43
31	9.6	7:03	4:41

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 2.17 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 — October's 2.17 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)	2.8	2.8	2.7	2.7	2.6	2.6	2.5	2.5	2.5	2.4	2.4	2.3	2.3	2.3	2.2	2.2	2.2	2.1	2.1	2.0	2.0	2.0	1.9	1.9	1.9	1.8	1.8	1.7	1.7	1.7	1.6
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.8	Moderate
2	2.8	Moderate
3	2.7	Moderate
4	2.7	Moderate
5	2.6	Moderate
6	2.6	Moderate
7	2.5	Moderate
8	2.5	Moderate
9	2.5	Moderate
10	2.4	Moderate
11	2.4	Moderate
12	2.3	Moderate
13	2.3	Moderate
14	2.3	Moderate
15	2.2	Moderate
16	2.2	Moderate
17	2.2	Moderate
18	2.1	Moderate
19	2.1	Moderate
20	2.0	Moderate
21	2.0	Moderate
22	2.0	Dim
23	1.9	Dim
24	1.9	Dim
25	1.9	Dim
26	1.8	Dim
27	1.8	Dim
28	1.7	Dim
29	1.7	Dim
30	1.7	Dim
31	1.6	Dim

Planning a trip in October

Hazard calendar for Saint Helier

In seasonPeak

In October, Saint Helier sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

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 October a good time to visit Saint Helier?

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

4.0

Sightseeing

5th-best month of the year

0.3

Beach & pool

5th-best month of the year

October is a reasonable time to visit Saint Helier for sightseeing.

What to pack for Saint Helier in October

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

In October, Saint Helier sees daytime highs around 15°C and nights near 13°C. Pack rain gear. Worth having: a warm layer and a windbreaker. About 16 days see rain.

rain geara warm layera windbreaker

Sea temperature near Saint Helier in October

The nearest coast averages about 16°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 3. 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

← September Saint Helier year-round climate November →Best places to visit in October

October 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	17	15
2	16	15
3	16	14
4	16	14
5	16	14
6	16	14
7	16	14
8	16	14
9	16	14
10	16	14
11	16	14
12	16	14
13	16	14
14	15	14
15	15	13
16	15	13
17	15	13
18	15	13
19	15	13
20	15	13
21	15	13
22	15	13
23	15	13
24	15	13
25	15	13
26	14	12
27	14	12
28	14	12
29	14	12
30	14	12
31	14	12

	Clearer (%)	Cloudier (%)
1	39	61
2	38	62
3	37	63
4	37	63
5	36	64
6	36	64
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	35	65
21	35	65
22	35	65
23	35	65
24	34	66
25	34	66
26	34	66
27	34	66
28	33	67
29	33	67
30	33	67
31	33	67

	Rain chance (%)
1	49
2	49
3	49
4	50
5	49
6	49
7	49
8	48
9	48
10	47
11	47
12	47
13	47
14	47
15	48
16	48
17	48
18	49
19	49
20	50
21	51
22	51
23	52
24	52
25	53
26	53
27	54
28	54
29	55
30	55
31	56

	Dry (%)	Comfortable (%)	Humid (%)
1	60	36	4
2	61	35	4
3	61	35	4
4	63	34	3
5	64	33	3
6	65	32	3
7	65	32	3
8	67	31	2
9	68	30	2
10	69	29	2
11	69	29	2
12	71	28	1
13	72	27	1
14	73	26	1
15	74	25	1
16	74	25	1
17	75	24	1
18	76	23	1
19	78	22	0
20	79	21	0
21	80	20	0
22	81	19	0
23	82	18	0
24	82	18	0
25	83	17	0
26	84	16	0
27	85	15	0
28	86	14	0
29	87	13	0
30	88	12	0
31	88	12	0

	Avg high (°C)	Avg low (°C)
1	17	15
2	16	15
3	16	14
4	16	14
5	16	14
6	16	14
7	16	14
8	16	14
9	16	14
10	16	14
11	16	14
12	16	14
13	16	14
14	15	14
15	15	13
16	15	13
17	15	13
18	15	13
19	15	13
20	15	13
21	15	13
22	15	13
23	15	13
24	15	13
25	15	13
26	14	12
27	14	12
28	14	12
29	14	12
30	14	12
31	14	12

	Clearer (%)	Cloudier (%)
1	39	61
2	38	62
3	37	63
4	37	63
5	36	64
6	36	64
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	35	65
21	35	65
22	35	65
23	35	65
24	34	66
25	34	66
26	34	66
27	34	66
28	33	67
29	33	67
30	33	67
31	33	67

	Rain chance (%)
1	49
2	49
3	49
4	50
5	49
6	49
7	49
8	48
9	48
10	47
11	47
12	47
13	47
14	47
15	48
16	48
17	48
18	49
19	49
20	50
21	51
22	51
23	52
24	52
25	53
26	53
27	54
28	54
29	55
30	55
31	56

	Dry (%)	Comfortable (%)	Humid (%)
1	60	36	4
2	61	35	4
3	61	35	4
4	63	34	3
5	64	33	3
6	65	32	3
7	65	32	3
8	67	31	2
9	68	30	2
10	69	29	2
11	69	29	2
12	71	28	1
13	72	27	1
14	73	26	1
15	74	25	1
16	74	25	1
17	75	24	1
18	76	23	1
19	78	22	0
20	79	21	0
21	80	20	0
22	81	19	0
23	82	18	0
24	82	18	0
25	83	17	0
26	84	16	0
27	85	15	0
28	86	14	0
29	87	13	0
30	88	12	0
31	88	12	0

	Avg high (°C)	Avg low (°C)
1	17	15
2	16	15
3	16	14
4	16	14
5	16	14
6	16	14
7	16	14
8	16	14
9	16	14
10	16	14
11	16	14
12	16	14
13	16	14
14	15	14
15	15	13
16	15	13
17	15	13
18	15	13
19	15	13
20	15	13
21	15	13
22	15	13
23	15	13
24	15	13
25	15	13
26	14	12
27	14	12
28	14	12
29	14	12
30	14	12
31	14	12

	Clearer (%)	Cloudier (%)
1	39	61
2	38	62
3	37	63
4	37	63
5	36	64
6	36	64
7	35	65
8	35	65
9	36	64
10	36	64
11	37	63
12	37	63
13	37	63
14	37	63
15	37	63
16	37	63
17	37	63
18	36	64
19	36	64
20	35	65
21	35	65
22	35	65
23	35	65
24	34	66
25	34	66
26	34	66
27	34	66
28	33	67
29	33	67
30	33	67
31	33	67

	Rain chance (%)
1	49
2	49
3	49
4	50
5	49
6	49
7	49
8	48
9	48
10	47
11	47
12	47
13	47
14	47
15	48
16	48
17	48
18	49
19	49
20	50
21	51
22	51
23	52
24	52
25	53
26	53
27	54
28	54
29	55
30	55
31	56

	Dry (%)	Comfortable (%)	Humid (%)
1	60	36	4
2	61	35	4
3	61	35	4
4	63	34	3
5	64	33	3
6	65	32	3
7	65	32	3
8	67	31	2
9	68	30	2
10	69	29	2
11	69	29	2
12	71	28	1
13	72	27	1
14	73	26	1
15	74	25	1
16	74	25	1
17	75	24	1
18	76	23	1
19	78	22	0
20	79	21	0
21	80	20	0
22	81	19	0
23	82	18	0
24	82	18	0
25	83	17	0
26	84	16	0
27	85	15	0
28	86	14	0
29	87	13	0
30	88	12	0
31	88	12	0