Lisburn weather in August

In August, Lisburn sees average daytime highs of 18°C and overnight lows near 12°C, with 81 mm of rain across 14.2 wet days and about 14.7 hours of daylight. It is the 2nd-warmest and 5th-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 5% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 42 min at the start of August to 13 h 36 min by month's end. Set against the rest of the year, August is Lisburn's 11th-clearest and 11th-windiest month. For the whole year in context, see Lisburn's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
12°
12th coldest
Rainfall
81 mm
14.2 wet days
Daylight
14 h 42 min
5:07 AM – 7:49 PM
Cloud cover
78%
11th clearest
Wind
14 km/h
11th windiest
Solar energy
3.72 kWh/m²
Travel score
4.9
out of 10

Lisburn is city in Northern Ireland.

Density
173/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

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

A typical August day in Lisburn reaches about 18°C in the afternoon and slips back to 12°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 20°C. Set against its neighbours, August runs on par with July and about 2°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11813
21813
31813
41813
51813
61813
71813
81813
91813
101813
111813
121812
131812
141812
151812
161812
171812
181812
191712
201712
211712
221712
231712
241712
251712
261712
271712
281712
291712
301712
311712

How August really feels in Lisburn

Once humidity and wind are folded in, August 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

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

Lisburn weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7714.20.87.61.0
Feb / 6212.10.99.31.1
Mar / 6213.40.611.51.6
Apr11° / 65130.213.72.5
May14° / 7014.10.115.73.5
Jun16° / 11°7513.2016.94.4
Jul18° / 12°8114.6016.44.9
Aug18° / 12°8114.2014.74.9
Sep16° / 11°7012.5012.54.4
Oct13° / 8713.5010.23.1
Nov10° / 85140.28.21.9
Dec / 8213.50.57.11.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31684
41585
51585
61585
71684
81684
91684
101783
111783
121882
131882
141981
151981
161981
171981
181981
191981
202080
212080
222080
232080
242080
252179
262278
272278
282278
292278
302278
312179

Chance of precipitation in August

Any precipitation

Lisburn gets around 81 mm of rain over 14.2 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 46% and peaks near 49% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
149
249
349
449
548
648
748
848
947
1047
1147
1247
1348
1448
1548
1648
1748
1848
1948
2048
2147
2246
2345
2444
2543
2642
2742
2841
2940
3040
3140

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 68% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
161363
262353
362353
462353
562353
662344
762344
862344
962344
1063334
1163334
1263334
1363334
1465323
1565323
1666313
1767303
1867303
1968293
2070282
2171272
2272262
2373252
2474242
2575232
2677221
2777221
2878211
2978211
3079201
3179201

Wind in August

Winds average 14 km/h in August.

Across August, 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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 42 min at the start of August to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 126 minutes over August. Sunrise moves from 4:40 AM to 5:35 AM, and sunset from 8:20 PM to 7:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.74:408:20
215.64:428:18
315.54:448:17
415.54:458:15
515.44:478:13
615.44:498:11
715.34:518:09
815.24:538:07
915.24:548:05
1015.14:568:02
1115.04:588:00
1215.05:007:58
1314.95:027:56
1414.85:047:54
1514.85:057:52
1614.75:077:49
1714.65:097:47
1814.65:117:45
1914.55:137:42
2014.45:157:40
2114.45:177:38
2214.35:187:35
2314.25:207:33
2414.15:227:30
2514.15:247:28
2614.05:267:26
2713.95:287:23
2813.85:307:21
2913.85:327:18
3013.75:337:16
3113.65:357:13

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.72 kWh/m².

For context, solar energy here swings from a low near 0.47 kWh/m² to a high of 4.95 kWh/m² in May across the year — August's 3.72 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.0Bright
44.0Bright
54.0Moderate
64.0Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.6Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.3Moderate
313.3Moderate
Planning a trip in August

Is August a good time to visit Lisburn?

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

4.9
Sightseeing
1st-best month of the year
1.4
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Lisburn for sightseeing.

What to pack for Lisburn in August

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

In August, Lisburn sees daytime highs around 18°C and nights near 12°C. Pack rain gear. About 14 days see rain.

rain gear

Sea temperature near Lisburn in August

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

The sea at the nearest coast (about 40 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.

6°8°10°12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr8Bracing
May9Bracing
Jun11Bracing
Jul12Bracing
Aug13Bracing
Sep14Bracing
Oct14Bracing
Nov12Bracing
Dec11Bracing

UV index in Lisburn in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Lisburn peaks around July 24 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 24UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5High
Jun5High
Jul5High
Aug5High
Sep3Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Lisburn?

Lisburn sits at 54.5°N, 6.0°W, 53 m above sea level, in United Kingdom. The nearest listed city is Belfast, 11 km away.

Topography around Lisburn

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

Within 3 km, the terrain around Lisburn has only modest variations in elevation — a maximum elevation change of 155 m around an average of 53 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 481 m; within 80 km, large variations in elevation — a maximum elevation change of 860 m.

The land around Lisburn is covered by grassland (37%), artificial surfaces (32%) and trees (24%) within 3 km, grassland (69%) within 16 km, and grassland (52%) and water (40%) within 80 km.

3 km
155 m
16 km
481 m
80 km
860 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Belfast 11 km · Castlereagh 11 km · Newtownabbey 17 km · Newtownards 23 km · Craigavon 24 km · Antrim 24 km · Banbridge 25 km · Carrickfergus 26 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
Christian 60%none 26%Muslim 4%other 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 Lisburn (54.5234°, -6.0353°, elevation 53 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).