Coleraine weather in October

In October, Coleraine sees average daytime highs of 12°C and overnight lows near 10°C, with 139 mm of rain across 18.9 wet days and about 10.2 hours of daylight. It is the 5th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 13°C in the first days to 12°C by the end. The sky is clear or mostly clear about 7% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of October to 9 h 06 min by month's end. Set against the rest of the year, October is Coleraine's 8th-clearest and 5th-windiest month. For the whole year in context, see Coleraine's year-round climate.

Daytime high: 12°; 5th warmest
Overnight low: 10°; 8th coldest
Rainfall: 139 mm; 18.9 wet days
Daylight: 10 h 06 min; 7:07 AM – 5:16 PM
Cloud cover: 76%; 8th clearest
Wind: 29 km/h; 5th windiest
Solar energy: 1.48 kWh/m²
Travel score: 2.6; out of 10

Coleraine is town and civil parish in County Londonderry, Northern Ireland.

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

← September Coleraine 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 13°C in the first days to 12°C by the end.

A typical October day in Coleraine reaches about 12°C in the afternoon and slips back to 10°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 15°C. Set against its neighbours, October runs about 2°C cooler than September and about 2°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)	14	14	13	13	13	13	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12	12	12	12	12	12	11	11
Avg low (°C)	12	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	10	10	10	10	10	10	10	10	10	10	10	10	9	9	9

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

Coleraine 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	Snow days	Daylight (hours)	Travel score
Jan	8° / 6°	124	20.3	0.6	7.5	1.0
Feb	8° / 5°	100	16.9	1	9.2	0.9
Mar	8° / 6°	91	16	0.8	11.4	1.1
Apr	9° / 7°	78	13.9	0.2	13.8	1.6
May	11° / 9°	71	13.4	0	15.8	2.3
Jun	13° / 11°	86	14.6	0	17	2.9
Jul	14° / 13°	95	16.1	0	16.5	3.5
Aug	15° / 13°	104	16.2	0	14.7	3.7
Sep	14° / 12°	101	16.3	0	12.5	3.5
Oct	12° / 10°	139	18.9	0	10.2	2.6
Nov	10° / 8°	149	20.8	0.2	8.1	1.7
Dec	9° / 6°	147	20	0.7	7	1.3

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 75%.

	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 (%)	26	26	26	27	27	27	27	27	27	27	27	28	28	27	26	26	26	26	26	26	25	24	23	23	22	22	22	21	21	21	21
Cloudier (%)	74	74	74	73	73	73	73	73	73	73	73	72	72	73	74	74	74	74	74	74	75	76	77	77	78	78	78	79	79	79	79

	Clearer (%)	Cloudier (%)
1	26	74
2	26	74
3	26	74
4	27	73
5	27	73
6	27	73
7	27	73
8	27	73
9	27	73
10	27	73
11	27	73
12	28	72
13	28	72
14	27	73
15	26	74
16	26	74
17	26	74
18	26	74
19	26	74
20	26	74
21	25	75
22	24	76
23	23	77
24	23	77
25	22	78
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79
31	21	79

Chance of precipitation in October

Any precipitation

Coleraine gets around 139 mm of rain over 18.9 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 61% and peaks near 66% 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 (%)	59	60	60	60	60	60	59	59	59	58	58	58	58	58	58	58	59	59	60	60	61	62	62	63	63	63	64	64	65	66	66

	Rain chance (%)
1	59
2	60
3	60
4	60
5	60
6	60
7	59
8	59
9	59
10	58
11	58
12	58
13	58
14	58
15	58
16	58
17	59
18	59
19	60
20	60
21	61
22	62
23	62
24	63
25	63
26	63
27	64
28	64
29	65
30	66
31	66

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 99% 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 (%)	96	96	96	97	97	97	98	98	98	98	99	99	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	4	4	4	3	3	3	2	2	2	2	1	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	98	2
10	98	2
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

Wind in October

Winds average 29 km/h in October.

Across October, daily wind ranges from about 27 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)	27	27	27	28	28	28	28	28	28	28	28	28	28	28	28	28	28	29	29	29	29	29	29	30	30	30	30	30	30	30	30
Feels	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	windy	windy	windy	windy	windy	windy

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

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 18 min at the start of October to 9 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 132 minutes over October. Sunrise moves from 6:37 AM to 7:38 AM, and sunset from 5:54 PM to 4:42 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)	11.3	11.2	11.1	11.1	11.0	10.9	10.8	10.8	10.7	10.6	10.5	10.4	10.4	10.3	10.2	10.1	10.1	10.0	9.9	9.8	9.8	9.7	9.6	9.6	9.5	9.4	9.3	9.3	9.2	9.1	9.1
Sunrise (AM)	6:37	6:39	6:41	6:43	6:45	6:47	6:49	6:51	6:53	6:55	6:57	6:59	7:01	7:03	7:05	7:07	7:09	7:11	7:13	7:16	7:18	7:20	7:22	7:24	7:26	7:28	7:30	7:32	7:34	7:36	7:38
Sunset (PM)	5:54	5:52	5:49	5:46	5:44	5:41	5:39	5:36	5:34	5:31	5:28	5:26	5:23	5:21	5:19	5:16	5:14	5:11	5:09	5:07	5:04	5:02	5:00	4:57	4:55	4:53	4:51	4:48	4:46	4:44	4:42

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.3	6:37	5:54
2	11.2	6:39	5:52
3	11.1	6:41	5:49
4	11.1	6:43	5:46
5	11.0	6:45	5:44
6	10.9	6:47	5:41
7	10.8	6:49	5:39
8	10.8	6:51	5:36
9	10.7	6:53	5:34
10	10.6	6:55	5:31
11	10.5	6:57	5:28
12	10.4	6:59	5:26
13	10.4	7:01	5:23
14	10.3	7:03	5:21
15	10.2	7:05	5:19
16	10.1	7:07	5:16
17	10.1	7:09	5:14
18	10.0	7:11	5:11
19	9.9	7:13	5:09
20	9.8	7:16	5:07
21	9.8	7:18	5:04
22	9.7	7:20	5:02
23	9.6	7:22	5:00
24	9.6	7:24	4:57
25	9.5	7:26	4:55
26	9.4	7:28	4:53
27	9.3	7:30	4:51
28	9.3	7:32	4:48
29	9.2	7:34	4:46
30	9.1	7:36	4:44
31	9.1	7:38	4:42

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.48 kWh/m².

For context, solar energy here swings from a low near 0.41 kWh/m² to a high of 5 kWh/m² in May across the year — October's 1.48 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)	2.0	2.0	1.9	1.9	1.9	1.8	1.8	1.7	1.7	1.7	1.6	1.6	1.6	1.6	1.5	1.5	1.4	1.4	1.4	1.4	1.3	1.3	1.3	1.2	1.2	1.2	1.1	1.1	1.1	1.1	1.0
Level	Moderate	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.0	Moderate
2	2.0	Dim
3	1.9	Dim
4	1.9	Dim
5	1.9	Dim
6	1.8	Dim
7	1.8	Dim
8	1.7	Dim
9	1.7	Dim
10	1.7	Dim
11	1.6	Dim
12	1.6	Dim
13	1.6	Dim
14	1.6	Dim
15	1.5	Dim
16	1.5	Dim
17	1.4	Dim
18	1.4	Dim
19	1.4	Dim
20	1.4	Dim
21	1.3	Dim
22	1.3	Dim
23	1.3	Dim
24	1.2	Dim
25	1.2	Dim
26	1.2	Dim
27	1.1	Dim
28	1.1	Dim
29	1.1	Dim
30	1.1	Dim
31	1.0	Dim

Planning a trip in October

Is October a good time to visit Coleraine?

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

2.6

Sightseeing

5th-best month of the year

—

Beach & pool

never really warm enough

October is a weaker month for outdoor sightseeing in Coleraine.

What to pack for Coleraine in October

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

In October, Coleraine sees daytime highs around 12°C and nights near 10°C. Pack rain gear and a windbreaker. Worth having: a warm layer. About 19 days see rain.

rain geara windbreakera warm layer

Sea temperature near Coleraine in October

The nearest coast averages about 13°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 27 km away) is warmest in September at about 14°C and coldest in March near 8°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)	9	8	8	8	9	11	13	14	14	13	12	10
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	9	Bracing
Feb	8	Bracing
Mar	8	Bracing
Apr	8	Bracing
May	9	Bracing
Jun	11	Bracing
Jul	13	Bracing
Aug	14	Bracing
Sep	14	Bracing
Oct	13	Bracing
Nov	12	Bracing
Dec	10	Bracing

UV index in Coleraine in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Coleraine peaks around July 12 at about 5 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 5 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	3	5	5	5	4	3	2	1	0
Level	Low	Low	Moderate	Moderate	High	Moderate	High	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Moderate
Apr	3	Moderate
May	5	High
Jun	5	Moderate
Jul	5	High
Aug	4	Moderate
Sep	3	Moderate
Oct	2	Low
Nov	1	Low
Dec	0	Low

Location & terrain

Where is Coleraine?

Coleraine sits at 55.1°N, 6.7°W, 5 m above sea level, in United Kingdom. The nearest listed city is Ballymena, 39 km away.

Topography around Coleraine

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

Within 3 km, the terrain around Coleraine has only modest variations in elevation — a maximum elevation change of 82 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 385 m; within 80 km, large variations in elevation — a maximum elevation change of 675 m.

The land around Coleraine is covered by grassland (54%) and trees (22%) within 3 km, grassland (57%) and water (24%) within 16 km, and grassland (46%) and water (46%) within 80 km.

3 km

82 m

grassland 54%

16 km

385 m

grassland 57%

80 km

675 m

grassland 46%

treesgrasslandcroplandartificial surfaceswater

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

October weather nearby: Ballymena 39 km · Derry 44 km · Londonderry County Borough 44 km · Antrim 55 km · Larne 63 km · Letterkenny 71 km · Newtownabbey 72 km · Omagh 72 km

United Kingdom travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type D / G / M; 230 V · 50 Hz
Prices: ≈ 89% of US; price level, 2025
GDP per capita: $57,602; 2025
Happiness: 6.7 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.1; per 100k, 2021
Road deaths: 3.2; per 100k/yr, 2019
Income group: High; World Bank
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 Coleraine (55.1333°, -6.6667°, elevation 5 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	14	12
2	14	11
3	13	11
4	13	11
5	13	11
6	13	11
7	13	11
8	13	11
9	13	11
10	13	11
11	13	11
12	13	11
13	13	11
14	13	11
15	13	11
16	12	11
17	12	10
18	12	10
19	12	10
20	12	10
21	12	10
22	12	10
23	12	10
24	12	10
25	12	10
26	12	10
27	12	10
28	12	10
29	12	9
30	11	9
31	11	9

	Clearer (%)	Cloudier (%)
1	26	74
2	26	74
3	26	74
4	27	73
5	27	73
6	27	73
7	27	73
8	27	73
9	27	73
10	27	73
11	27	73
12	28	72
13	28	72
14	27	73
15	26	74
16	26	74
17	26	74
18	26	74
19	26	74
20	26	74
21	25	75
22	24	76
23	23	77
24	23	77
25	22	78
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79
31	21	79

	Rain chance (%)
1	59
2	60
3	60
4	60
5	60
6	60
7	59
8	59
9	59
10	58
11	58
12	58
13	58
14	58
15	58
16	58
17	59
18	59
19	60
20	60
21	61
22	62
23	62
24	63
25	63
26	63
27	64
28	64
29	65
30	66
31	66

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	98	2
10	98	2
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

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

	Clearer (%)	Cloudier (%)
1	26	74
2	26	74
3	26	74
4	27	73
5	27	73
6	27	73
7	27	73
8	27	73
9	27	73
10	27	73
11	27	73
12	28	72
13	28	72
14	27	73
15	26	74
16	26	74
17	26	74
18	26	74
19	26	74
20	26	74
21	25	75
22	24	76
23	23	77
24	23	77
25	22	78
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79
31	21	79

	Rain chance (%)
1	59
2	60
3	60
4	60
5	60
6	60
7	59
8	59
9	59
10	58
11	58
12	58
13	58
14	58
15	58
16	58
17	59
18	59
19	60
20	60
21	61
22	62
23	62
24	63
25	63
26	63
27	64
28	64
29	65
30	66
31	66

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	98	2
10	98	2
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

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

	Clearer (%)	Cloudier (%)
1	26	74
2	26	74
3	26	74
4	27	73
5	27	73
6	27	73
7	27	73
8	27	73
9	27	73
10	27	73
11	27	73
12	28	72
13	28	72
14	27	73
15	26	74
16	26	74
17	26	74
18	26	74
19	26	74
20	26	74
21	25	75
22	24	76
23	23	77
24	23	77
25	22	78
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79
31	21	79

	Rain chance (%)
1	59
2	60
3	60
4	60
5	60
6	60
7	59
8	59
9	59
10	58
11	58
12	58
13	58
14	58
15	58
16	58
17	59
18	59
19	60
20	60
21	61
22	62
23	62
24	63
25	63
26	63
27	64
28	64
29	65
30	66
31	66

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	98	2
10	98	2
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0