Larne weather in July

In July, Larne sees average daytime highs of 15°C and overnight lows near 12°C, with 94 mm of rain across 15.4 wet days and about 16.5 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 15°C through the month. The sky is clear or mostly clear about 9% of the time in July, and the air most often feels dry.

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

Daytime high: 15°; 2nd warmest
Overnight low: 12°; 11th coldest
Rainfall: 94 mm; 15.4 wet days
Daylight: 16 h 30 min; 4:12 AM – 8:45 PM
Cloud cover: 76%; 12th clearest
Wind: 16 km/h; 12th windiest
Solar energy: 4.69 kWh/m²
Travel score: 4.0; out of 10

Larne is town in County Antrim, Northern Ireland, UK.

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

← June Larne 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 15°C through the month.

A typical July day in Larne reaches about 15°C in the afternoon and slips back to 12°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 17°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)	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	15	16	16	16	16	16	16	16	16	16	16	16	16	16	16
Avg low (°C)	12	12	12	12	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

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

How July really feels in Larne

Once humidity and wind are folded in, July averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Larne weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 5th-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° / 5°	99	17.2	0.8	7.6	0.9
Feb	7° / 5°	79	14	1	9.3	0.9
Mar	8° / 5°	76	14.6	0.7	11.4	1.2
Apr	10° / 6°	68	13.4	0.2	13.8	1.8
May	12° / 8°	72	13.5	0	15.8	2.7
Jun	14° / 11°	82	13.7	0	16.9	3.5
Jul	15° / 12°	94	15.4	0	16.5	4.0
Aug	16° / 13°	92	15.1	0	14.7	4.2
Sep	15° / 12°	86	13.8	0	12.5	3.8
Oct	12° / 10°	114	16.2	0	10.2	2.8
Nov	10° / 7°	113	17.3	0.1	8.1	1.8
Dec	8° / 5°	109	15.7	0.4	7	1.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of July, with mostly cloudy or overcast conditions the remaining 76%.

	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 (%)	25	25	25	25	25	24	24	24	24	24	24	23	23	23	23	23	23	24	24	24	24	24	24	24	24	24	23	23	23	23	23
Cloudier (%)	75	75	75	75	75	76	76	76	76	76	76	77	77	77	77	77	77	76	76	76	76	76	76	76	76	76	77	77	77	77	77

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

Chance of precipitation in July

Any precipitation

Larne gets around 94 mm of rain over 15.4 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 49% and peaks near 51% 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 (%)	50	50	50	50	50	50	50	50	49	49	49	49	48	48	48	48	47	47	48	48	48	49	49	49	50	50	50	51	51	51	51

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

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 80% 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 (%)	92	91	91	90	90	89	89	88	88	87	86	85	84	83	82	81	79	78	77	76	75	74	73	72	71	71	70	70	70	70	70
Comfortable (%)	8	9	9	10	10	11	11	12	12	13	14	15	16	17	18	19	21	22	23	24	25	26	27	28	29	29	30	30	30	30	30

	Dry (%)	Comfortable (%)
1	92	8
2	91	9
3	91	9
4	90	10
5	90	10
6	89	11
7	89	11
8	88	12
9	88	12
10	87	13
11	86	14
12	85	15
13	84	16
14	83	17
15	82	18
16	81	19
17	79	21
18	78	22
19	77	23
20	76	24
21	75	25
22	74	26
23	73	27
24	72	28
25	71	29
26	71	29
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30

Wind in July

Winds average 16 km/h in July, the calmest month.

Across July, daily wind ranges from about 16 km/h on the calmest days to 17 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)	17	17	17	17	17	17	17	17	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16
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	light breeze

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

Sunrise & sunset in July

DaylightNight

Daylight runs from about 17 hours 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 72 minutes over July. Sunrise moves from 3:57 AM to 4:36 AM, and sunset from 8:56 PM to 8:23 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)	17.0	17.0	17.0	16.9	16.9	16.9	16.9	16.8	16.8	16.8	16.7	16.7	16.7	16.6	16.6	16.5	16.5	16.5	16.4	16.4	16.3	16.3	16.2	16.2	16.1	16.1	16.0	16.0	15.9	15.8	15.8
Sunrise (AM)	3:57	3:57	3:58	3:59	4:00	4:01	4:02	4:03	4:04	4:05	4:06	4:07	4:09	4:10	4:11	4:12	4:14	4:15	4:17	4:18	4:20	4:21	4:23	4:24	4:26	4:28	4:29	4:31	4:33	4:34	4:36
Sunset (PM)	8:56	8:56	8:56	8:55	8:55	8:54	8:54	8:53	8:52	8:51	8:50	8:50	8:49	8:48	8:46	8:45	8:44	8:43	8:42	8:40	8:39	8:37	8:36	8:34	8:33	8:31	8:30	8:28	8:26	8:25	8:23

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	17.0	3:57	8:56
2	17.0	3:57	8:56
3	17.0	3:58	8:56
4	16.9	3:59	8:55
5	16.9	4:00	8:55
6	16.9	4:01	8:54
7	16.9	4:02	8:54
8	16.8	4:03	8:53
9	16.8	4:04	8:52
10	16.8	4:05	8:51
11	16.7	4:06	8:50
12	16.7	4:07	8:50
13	16.7	4:09	8:49
14	16.6	4:10	8:48
15	16.6	4:11	8:46
16	16.5	4:12	8:45
17	16.5	4:14	8:44
18	16.5	4:15	8:43
19	16.4	4:17	8:42
20	16.4	4:18	8:40
21	16.3	4:20	8:39
22	16.3	4:21	8:37
23	16.2	4:23	8:36
24	16.2	4:24	8:34
25	16.1	4:26	8:33
26	16.1	4:28	8:31
27	16.0	4:29	8:30
28	16.0	4:31	8:28
29	15.9	4:33	8:26
30	15.8	4:34	8:25
31	15.8	4:36	8:23

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.69 kWh/m².

For context, solar energy here swings from a low near 0.46 kWh/m² to a high of 5.1 kWh/m² in June across the year — July's 4.69 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)	4.9	4.9	4.9	4.9	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.8	4.7	4.7	4.7	4.7	4.7	4.7	4.6	4.6	4.6	4.5	4.5	4.5	4.4	4.4	4.4	4.3	4.3
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	Bright

	Solar energy (kWh/m²)	Level
1	4.9	Bright
2	4.9	Bright
3	4.9	Bright
4	4.9	Bright
5	4.8	Bright
6	4.8	Bright
7	4.8	Bright
8	4.8	Bright
9	4.8	Bright
10	4.8	Bright
11	4.8	Bright
12	4.8	Bright
13	4.8	Bright
14	4.8	Bright
15	4.7	Bright
16	4.7	Bright
17	4.7	Bright
18	4.7	Bright
19	4.7	Bright
20	4.7	Bright
21	4.6	Bright
22	4.6	Bright
23	4.6	Bright
24	4.5	Bright
25	4.5	Bright
26	4.5	Bright
27	4.4	Bright
28	4.4	Bright
29	4.4	Bright
30	4.3	Bright
31	4.3	Bright

Planning a trip in July

Is July a good time to visit Larne?

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

4.0

Sightseeing

2nd-best month of the year

—

Beach & pool

never really warm enough

July is a reasonable time to visit Larne for sightseeing.

What to pack for Larne in July

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

In July, Larne sees daytime highs around 15°C and nights near 12°C. Pack rain gear. Worth having: a warm layer and sun protection. About 15 days see rain.

rain geara warm layersun protection

Sea temperature near Larne in July

The nearest coast averages about 12°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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	12	13	14	14	12	11
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	12	Bracing
Aug	13	Bracing
Sep	14	Bracing
Oct	14	Bracing
Nov	12	Bracing
Dec	11	Bracing

UV index in Larne 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 Larne peaks around May 22 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	5	3	2	1	0
Level	Low	Low	Moderate	Moderate	High	High	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	High
Jul	5	High
Aug	5	Moderate
Sep	3	Moderate
Oct	2	Low
Nov	1	Low
Dec	0	Low

Location & terrain

Where is Larne?

Larne sits at 54.9°N, 5.8°W, 4 m above sea level, in United Kingdom. The nearest listed city is Carrickfergus, 15 km away.

Topography around Larne

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

Within 3 km, the terrain around Larne has only modest variations in elevation — a maximum elevation change of 141 m around an average of 44 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 473 m; within 80 km, large variations in elevation — a maximum elevation change of 841 m.

The land around Larne is covered by grassland (39%) and water (34%) within 3 km, water (47%) and grassland (45%) within 16 km, and water (50%) and grassland (41%) within 80 km.

3 km

141 m

grassland 39%

16 km

473 m

water 47%

80 km

841 m

water 50%

treesgrasslandcroplandartificial surfaceswater

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

July weather nearby: Carrickfergus 15 km · Newtownabbey 22 km · Bangor 23 km · Belfast 29 km · Antrim 29 km · Ballymena 29 km · Newtownards 30 km · Castlereagh 31 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 Larne (54.85°, -5.8167°, elevation 4 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	15	12
2	15	12
3	15	12
4	15	12
5	15	12
6	15	12
7	15	12
8	15	12
9	15	12
10	15	12
11	15	12
12	15	12
13	15	12
14	15	12
15	15	12
16	15	12
17	15	12
18	16	13
19	16	13
20	16	13
21	16	13
22	16	13
23	16	13
24	16	13
25	16	13
26	16	13
27	16	13
28	16	13
29	16	13
30	16	13
31	16	13

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

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

	Dry (%)	Comfortable (%)
1	92	8
2	91	9
3	91	9
4	90	10
5	90	10
6	89	11
7	89	11
8	88	12
9	88	12
10	87	13
11	86	14
12	85	15
13	84	16
14	83	17
15	82	18
16	81	19
17	79	21
18	78	22
19	77	23
20	76	24
21	75	25
22	74	26
23	73	27
24	72	28
25	71	29
26	71	29
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30

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

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

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

	Dry (%)	Comfortable (%)
1	92	8
2	91	9
3	91	9
4	90	10
5	90	10
6	89	11
7	89	11
8	88	12
9	88	12
10	87	13
11	86	14
12	85	15
13	84	16
14	83	17
15	82	18
16	81	19
17	79	21
18	78	22
19	77	23
20	76	24
21	75	25
22	74	26
23	73	27
24	72	28
25	71	29
26	71	29
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30

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

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

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

	Dry (%)	Comfortable (%)
1	92	8
2	91	9
3	91	9
4	90	10
5	90	10
6	89	11
7	89	11
8	88	12
9	88	12
10	87	13
11	86	14
12	85	15
13	84	16
14	83	17
15	82	18
16	81	19
17	79	21
18	78	22
19	77	23
20	76	24
21	75	25
22	74	26
23	73	27
24	72	28
25	71	29
26	71	29
27	70	30
28	70	30
29	70	30
30	70	30
31	70	30