Coleraine weather in July

In July, Coleraine sees average daytime highs of 14°C and overnight lows near 13°C, with 95 mm of rain across 16.1 wet days and about 16.5 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 14°C through the month. The sky is clear or mostly clear about 10% of the time in July, and the air most often feels dry.

Daylight stretches from about 17 h 06 min at the start of July to 15 h 48 min by month's end. Set against the rest of the year, July is Coleraine's 7th-clearest and 12th-windiest month. For the whole year in context, see Coleraine's year-round climate.

Daytime high: 14°; 3rd warmest
Overnight low: 13°; 11th coldest
Rainfall: 95 mm; 16.1 wet days
Daylight: 16 h 36 min; 4:14 AM – 8:50 PM
Cloud cover: 75%; 7th clearest
Wind: 20 km/h; 12th windiest
Solar energy: 4.5 kWh/m²
Travel score: 3.5; 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.

← June Coleraine year-round climate August →Best places to visit in July

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 14°C through the month.

A typical July day in Coleraine reaches about 14°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 16°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)	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	15	15	15	15	15
Avg low (°C)	12	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13

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

Coleraine weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 8th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 15% of July, 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 (%)	29	29	29	29	27	27	26	26	25	25	25	24	24	24	25	25	24	24	24	25	25	24	24	24	24	24	24	24	24	24	24
Cloudier (%)	71	71	71	71	73	73	74	74	75	75	75	76	76	76	75	75	76	76	76	75	75	76	76	76	76	76	76	76	76	76	76

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	29	71
4	29	71
5	27	73
6	27	73
7	26	74
8	26	74
9	25	75
10	25	75
11	25	75
12	24	76
13	24	76
14	24	76
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	25	75
21	25	75
22	24	76
23	24	76
24	24	76
25	24	76
26	24	76
27	24	76
28	24	76
29	24	76
30	24	76
31	24	76

Chance of precipitation in July

Any precipitation

Coleraine gets around 95 mm of rain over 16.1 wet days in July. The line is the day-by-day chance of measurable precipitation.

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

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

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 86% 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	95	95	95	94	94	94	93	92	92	91	90	89	87	86	85	84	83	82	81	80	79	78	77	76	76	75	75	75	74
Comfortable (%)	4	4	5	5	5	6	6	6	7	8	8	9	10	11	13	14	15	16	17	18	19	20	21	22	23	24	24	25	25	25	26

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	95	5
4	95	5
5	95	5
6	94	6
7	94	6
8	94	6
9	93	7
10	92	8
11	92	8
12	91	9
13	90	10
14	89	11
15	87	13
16	86	14
17	85	15
18	84	16
19	83	17
20	82	18
21	81	19
22	80	20
23	79	21
24	78	22
25	77	23
26	76	24
27	76	24
28	75	25
29	75	25
30	75	25
31	74	26

Wind in July

Winds average 20 km/h in July, the calmest month.

Across July, daily wind ranges from about 20 km/h on the calmest days to 21 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)	21	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	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	21	breezy
2	20	breezy
3	20	breezy
4	20	breezy
5	20	breezy
6	20	breezy
7	20	breezy
8	20	breezy
9	20	light breeze
10	20	light breeze
11	20	light breeze
12	20	light breeze
13	20	light breeze
14	20	light breeze
15	20	light breeze
16	20	light breeze
17	20	light breeze
18	20	light breeze
19	20	light breeze
20	20	light breeze
21	20	light breeze
22	20	light breeze
23	20	light breeze
24	20	light breeze
25	20	light breeze
26	20	light breeze
27	20	light breeze
28	20	light breeze
29	20	light breeze
30	20	light breeze
31	20	light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 17 h 06 min at the start of July to 15 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over July. Sunrise moves from 3:58 AM to 4:38 AM, and sunset from 9:02 PM to 8:27 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)	17.1	17.0	17.0	17.0	17.0	17.0	16.9	16.9	16.9	16.8	16.8	16.8	16.7	16.7	16.6	16.6	16.6	16.5	16.5	16.4	16.4	16.3	16.3	16.2	16.2	16.1	16.1	16.0	15.9	15.9	15.8
Sunrise (AM)	3:58	3:59	4:00	4:01	4:01	4:02	4:03	4:04	4:05	4:07	4:08	4:09	4:10	4:12	4:13	4:14	4:16	4:17	4:18	4:20	4:22	4:23	4:25	4:26	4:28	4:30	4:31	4:33	4:35	4:36	4:38
Sunset (PM)	9:02	9:01	9:01	9:01	9:00	8:59	8:59	8:58	8:57	8:56	8:56	8:55	8:54	8:53	8:52	8:50	8:49	8:48	8:47	8:45	8:44	8:42	8:41	8:39	8:38	8:36	8:34	8:33	8:31	8:29	8:27

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	17.1	3:58	9:02
2	17.0	3:59	9:01
3	17.0	4:00	9:01
4	17.0	4:01	9:01
5	17.0	4:01	9:00
6	17.0	4:02	8:59
7	16.9	4:03	8:59
8	16.9	4:04	8:58
9	16.9	4:05	8:57
10	16.8	4:07	8:56
11	16.8	4:08	8:56
12	16.8	4:09	8:55
13	16.7	4:10	8:54
14	16.7	4:12	8:53
15	16.6	4:13	8:52
16	16.6	4:14	8:50
17	16.6	4:16	8:49
18	16.5	4:17	8:48
19	16.5	4:18	8:47
20	16.4	4:20	8:45
21	16.4	4:22	8:44
22	16.3	4:23	8:42
23	16.3	4:25	8:41
24	16.2	4:26	8:39
25	16.2	4:28	8:38
26	16.1	4:30	8:36
27	16.1	4:31	8:34
28	16.0	4:33	8:33
29	15.9	4:35	8:31
30	15.9	4:36	8:29
31	15.8	4:38	8:27

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.5 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 — July's 4.5 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)	4.7	4.7	4.7	4.7	4.7	4.7	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.5	4.5	4.5	4.5	4.5	4.4	4.4	4.4	4.4	4.3	4.3	4.3	4.3	4.2	4.2	4.2
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	Bright

	Solar energy (kWh/m²)	Level
1	4.7	Bright
2	4.7	Bright
3	4.7	Bright
4	4.7	Bright
5	4.7	Bright
6	4.7	Bright
7	4.6	Bright
8	4.6	Bright
9	4.6	Bright
10	4.6	Bright
11	4.6	Bright
12	4.6	Bright
13	4.6	Bright
14	4.6	Bright
15	4.6	Bright
16	4.5	Bright
17	4.5	Bright
18	4.5	Bright
19	4.5	Bright
20	4.5	Bright
21	4.4	Bright
22	4.4	Bright
23	4.4	Bright
24	4.4	Bright
25	4.3	Bright
26	4.3	Bright
27	4.3	Bright
28	4.3	Bright
29	4.2	Bright
30	4.2	Bright
31	4.2	Bright

Planning a trip in July

Is July a good time to visit Coleraine?

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

3.5

Sightseeing

2nd-best month of the year

—

Beach & pool

never really warm enough

July is a weaker month for outdoor sightseeing in Coleraine.

What to pack for Coleraine in July

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

In July, Coleraine sees daytime highs around 14°C and nights near 13°C. Pack rain gear. Worth having: a warm layer and sun protection. About 16 days see rain.

rain geara warm layersun protection

Sea temperature near Coleraine in July

The nearest coast averages about 13°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 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 July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 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

← June Coleraine year-round climate August →Best places to visit in July

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

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	29	71
4	29	71
5	27	73
6	27	73
7	26	74
8	26	74
9	25	75
10	25	75
11	25	75
12	24	76
13	24	76
14	24	76
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	25	75
21	25	75
22	24	76
23	24	76
24	24	76
25	24	76
26	24	76
27	24	76
28	24	76
29	24	76
30	24	76
31	24	76

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

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	95	5
4	95	5
5	95	5
6	94	6
7	94	6
8	94	6
9	93	7
10	92	8
11	92	8
12	91	9
13	90	10
14	89	11
15	87	13
16	86	14
17	85	15
18	84	16
19	83	17
20	82	18
21	81	19
22	80	20
23	79	21
24	78	22
25	77	23
26	76	24
27	76	24
28	75	25
29	75	25
30	75	25
31	74	26

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

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	29	71
4	29	71
5	27	73
6	27	73
7	26	74
8	26	74
9	25	75
10	25	75
11	25	75
12	24	76
13	24	76
14	24	76
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	25	75
21	25	75
22	24	76
23	24	76
24	24	76
25	24	76
26	24	76
27	24	76
28	24	76
29	24	76
30	24	76
31	24	76

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

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	95	5
4	95	5
5	95	5
6	94	6
7	94	6
8	94	6
9	93	7
10	92	8
11	92	8
12	91	9
13	90	10
14	89	11
15	87	13
16	86	14
17	85	15
18	84	16
19	83	17
20	82	18
21	81	19
22	80	20
23	79	21
24	78	22
25	77	23
26	76	24
27	76	24
28	75	25
29	75	25
30	75	25
31	74	26

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

	Clearer (%)	Cloudier (%)
1	29	71
2	29	71
3	29	71
4	29	71
5	27	73
6	27	73
7	26	74
8	26	74
9	25	75
10	25	75
11	25	75
12	24	76
13	24	76
14	24	76
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	25	75
21	25	75
22	24	76
23	24	76
24	24	76
25	24	76
26	24	76
27	24	76
28	24	76
29	24	76
30	24	76
31	24	76

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

	Dry (%)	Comfortable (%)
1	96	4
2	96	4
3	95	5
4	95	5
5	95	5
6	94	6
7	94	6
8	94	6
9	93	7
10	92	8
11	92	8
12	91	9
13	90	10
14	89	11
15	87	13
16	86	14
17	85	15
18	84	16
19	83	17
20	82	18
21	81	19
22	80	20
23	79	21
24	78	22
25	77	23
26	76	24
27	76	24
28	75	25
29	75	25
30	75	25
31	74	26