Sligo weather in July

In July, Sligo sees average daytime highs of 18°C and overnight lows near 12°C, with 110 mm of rain across 17.9 wet days and about 16.4 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 2% of the time in July, and the air most often feels dry.

Daylight stretches from about 16 h 54 min at the start of July to 15 h 42 min by month's end. Set against the rest of the year, July is Sligo's 12th-clearest and 12th-windiest month. For the whole year in context, see Sligo's year-round climate.

Daytime high
18°
1st warmest
Overnight low
12°
12th coldest
Rainfall
110 mm
17.9 wet days
Daylight
16 h 24 min
4:26 AM – 8:53 PM
Cloud cover
85%
12th clearest
Wind
13 km/h
12th windiest
Solar energy
4.37 kWh/m²
Travel score
4.5
out of 10

Sligo is main town in county Sligo, Ireland.

Density
668/km²
people per km²

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 18°C through the month.

A typical July day in Sligo reaches about 18°C in the afternoon and slips back to 12°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 21°C. Set against its neighbours, July runs about 1°C warmer than June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11711
21711
31711
41711
51711
61711
71711
81711
91711
101811
111811
121812
131812
141812
151812
161812
171812
181812
191812
201812
211812
221812
231812
241812
251812
261812
271812
281812
291812
301812
311812

How July really feels in Sligo

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
0
heat index over the day's high
Days feeling ≤ C
0
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.

Sligo weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 10917.61.47.70.9
Feb / 9415.41.39.31.0
Mar / 9116.40.911.51.7
Apr12° / 8414.90.213.72.6
May14° / 9615.1015.73.6
Jun16° / 10°9915.5016.84.2
Jul18° / 12°11017.9016.44.5
Aug18° / 12°10818014.74.4
Sep16° / 10°9115012.54.1
Oct13° / 11016.7010.22.9
Nov10° / 11017.50.18.21.6
Dec / 11418.20.97.21.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 7% of July, with mostly cloudy or overcast conditions the remaining 90%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11288
21189
31189
41189
51189
61189
71189
8991
9991
10991
11991
12991
131090
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
291090
301090
311090

Chance of precipitation in July

Any precipitation

Sligo gets around 110 mm of rain over 17.9 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 57% and peaks near 60% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
156
256
357
457
557
658
758
858
958
1057
1157
1257
1357
1457
1557
1657
1756
1856
1956
2056
2157
2257
2357
2458
2558
2659
2759
2859
2960
3060
3160

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 71% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
183161
282171
380182
480182
579192
679192
779192
878202
977212
1077212
1176222
1275232
1374242
1472253
1571263
1670273
1769283
1868293
1968293
2067303
2166313
2265314
2364324
2464324
2564324
2663325
2764315
2864315
2964315
3064315
3165305

Wind in July

Winds average 13 km/h in July, the calmest month.

Across July, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 54 min at the start of July to 15 h 42 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 4:11 AM to 4:49 AM, and sunset from 9:03 PM to 8:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.94:119:03
216.94:129:03
316.84:129:03
416.84:139:02
516.84:149:02
616.84:159:01
716.74:169:01
816.74:179:00
916.74:188:59
1016.74:198:58
1116.64:208:58
1216.64:218:57
1316.64:238:56
1416.54:248:55
1516.54:258:54
1616.44:268:53
1716.44:288:52
1816.44:298:50
1916.34:308:49
2016.34:328:48
2116.24:338:46
2216.24:358:45
2316.14:368:44
2416.14:388:42
2516.04:398:41
2616.04:418:39
2715.94:438:37
2815.94:448:36
2915.84:468:34
3015.74:488:32
3115.74:498:31

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.37 kWh/m².

For context, solar energy here swings from a low near 0.45 kWh/m² to a high of 4.93 kWh/m² in June across the year — July's 4.37 kWh/m² sits near the top of that range.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.2Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.1Bright
304.0Bright
314.0Bright
Planning a trip in July

Is July a good time to visit Sligo?

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

4.5
Sightseeing
1st-best month of the year
Beach & pool
never really warm enough

July is a reasonable time to visit Sligo for sightseeing.

What to pack for Sligo in July

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

In July, Sligo sees daytime highs around 18°C and nights near 12°C. Pack rain gear. About 18 days see rain.

rain gear

Sea temperature near Sligo in July

The nearest coast averages about 15°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 15 km away) is warmest in August at about 16°C and coldest in February near 8°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun13Bracing
Jul15Bracing
Aug16Cool
Sep15Bracing
Oct13Bracing
Nov12Bracing
Dec10Bracing

UV index in Sligo 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 Sligo peaks around June 23 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 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5Moderate
Jun5High
Jul5High
Aug5Moderate
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Sligo?

Sligo sits at 54.3°N, 8.5°W, 13 m above sea level, in Ireland. The nearest listed city is Omagh, 84 km away.

OmaghLetterkennyAthloneLondonderry County BoroughDerryAn Muileann gCearrGalwayTullamore

Topography around Sligo

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

Within 3 km, the terrain around Sligo has only modest variations in elevation — a maximum elevation change of 120 m around an average of 27 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 660 m; within 80 km, large variations in elevation — a maximum elevation change of 805 m.

The land around Sligo is covered by grassland (56%) and trees (21%) within 3 km, grassland (66%) within 16 km, and grassland (64%) and water (24%) within 80 km.

3 km
120 m
16 km
660 m
80 km
805 m
treesgrasslandartificial surfaceswater
July weather nearby: Omagh 84 km · Letterkenny 89 km · Athlone 100 km · Londonderry County Borough 110 km · Derry 110 km · An Muileann gCearr 111 km · Galway 117 km · Tullamore 128 km

Ireland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type G
230 V · 50 Hz
Prices
≈ 85% of US
price level, 2025
GDP per capita
$131,592
2025
Happiness
6.9 / 10
World Happiness, 2025
Safe drinking water
96%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
Religion
Roman Catholic 69%none 15%Protestant 4%Orthodox 2%

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 Sligo (54.2697°, -8.4694°, elevation 13 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).