Kilkenny weather in August

In August, Kilkenny sees average daytime highs of 18°C and overnight lows near 11°C, with 71 mm of rain across 11.8 wet days and about 14.5 hours of daylight. It is the 2nd-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 4% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 24 min at the start of August to 13 h 30 min by month's end. Set against the rest of the year, August is Kilkenny's 11th-clearest and 11th-windiest month. For the whole year in context, see Kilkenny's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
11°
11th coldest
Rainfall
71 mm
11.8 wet days
Daylight
14 h 30 min
5:18 AM – 7:49 PM
Cloud cover
80%
11th clearest
Wind
12 km/h
11th windiest
Solar energy
3.74 kWh/m²
Travel score
5.4
out of 10

Kilkenny is city in County Kilkenny, Ireland.

Air quality
Good
PM10 17.8 µg/m³ · 2019
Density
807/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 Kilkenny reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 21°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)
11912
21912
31912
41912
51912
61912
71912
81912
91912
101912
111912
121912
131812
141812
151812
161812
171811
181811
191811
201811
211811
221811
231811
241811
251811
261811
271811
281811
291811
301811
311811

How August really feels in Kilkenny

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.

Kilkenny weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7112.80.681.1
Feb / 5811.40.89.51.2
Mar10° / 5811.60.711.51.9
Apr12° / 6512.5013.62.9
May15° / 6512.9015.53.9
Jun17° / 10°7011.8016.55.0
Jul19° / 12°6512.5016.15.3
Aug18° / 11°7111.8014.55.4
Sep16° / 10°6110.7012.44.8
Oct13° / 7812.3010.33.3
Nov10° / 7712.10.18.52.0
Dec / 7713.40.57.51.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11585
21585
31585
41585
51585
61684
71684
81684
91684
101684
111783
121783
131684
141684
151783
161783
171882
181882
191981
201981
212080
222080
232080
242080
252080
262080
272080
281981
292080
301981
311981

Chance of precipitation in August

Any precipitation

Kilkenny gets around 71 mm of rain over 11.8 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 38% and peaks near 42% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
241
342
442
542
642
742
842
942
1042
1142
1242
1341
1441
1541
1641
1741
1840
1940
2039
2138
2237
2335
2434
2533
2632
2731
2830
2929
3029
3129

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 (%)
162335
262335
363325
463325
563316
663316
763316
863316
964306
1064306
1164306
1265296
1365296
1465296
1566286
1667285
1767285
1868275
1969274
2070264
2171254
2272253
2373243
2473243
2574233
2675223
2775223
2875223
2976213
3076213
3177203

Wind in August

Winds average 12 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light 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 August

DaylightNight

Daylight runs from about 15 h 24 min at the start of August to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 114 minutes over August. Sunrise moves from 4:53 AM to 5:43 AM, and sunset from 8:17 PM to 7:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.44:538:17
215.44:548:16
315.34:568:14
415.24:588:12
515.24:598:10
615.15:018:08
715.15:038:07
815.05:048:05
914.95:068:03
1014.95:078:01
1114.85:097:59
1214.85:117:57
1314.75:137:55
1414.65:147:53
1514.65:167:51
1614.55:187:49
1714.55:197:46
1814.45:217:44
1914.35:237:42
2014.35:247:40
2114.25:267:38
2214.15:287:35
2314.15:307:33
2414.05:317:31
2513.95:337:29
2613.95:357:26
2713.85:377:24
2813.75:387:22
2913.75:407:19
3013.65:427:17
3113.55:437:15

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.74 kWh/m².

For context, solar energy here swings from a low near 0.55 kWh/m² to a high of 4.91 kWh/m² in June across the year — August's 3.74 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Moderate
44.0Moderate
54.0Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.6Moderate
213.6Moderate
223.6Moderate
233.6Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.3Moderate
Planning a trip in August

Is August a good time to visit Kilkenny?

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

5.4
Sightseeing
1st-best month of the year
1.9
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Kilkenny for sightseeing.

What to pack for Kilkenny in August

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

In August, Kilkenny sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear. About 12 days see rain.

rain gear

Sea temperature near Kilkenny in August

The nearest coast averages about 16°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 59 km away) is warmest in August at about 16°C and coldest in February near 9°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
Feb9Bracing
Mar9Bracing
Apr10Bracing
May12Bracing
Jun14Bracing
Jul16Cool
Aug16Cool
Sep15Cool
Oct14Bracing
Nov12Bracing
Dec10Bracing

UV index in Kilkenny in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kilkenny peaks around August 13 at about 6 (high) — a little sun protection helps at midday. It bottoms out near January 1 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May5High
Jun6High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Kilkenny?

Kilkenny sits at 52.7°N, 7.3°W, 48 m above sea level, in Ireland. The nearest listed city is Carlow, 30 km away.

CarlowPortlaoiseWaterfordCluain MealaWexfordDroichead NuaTullamoreNaas

Topography around Kilkenny

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

Within 3 km, the terrain around Kilkenny has only modest variations in elevation — a maximum elevation change of 71 m around an average of 62 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 330 m; within 80 km, large variations in elevation — a maximum elevation change of 928 m.

The land around Kilkenny is covered by grassland (50%) within 3 km, grassland (77%) within 16 km, and grassland (67%) within 80 km.

3 km
71 m
16 km
330 m
80 km
928 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Carlow 30 km · Portlaoise 42 km · Waterford 45 km · Cluain Meala 45 km · Wexford 65 km · Droichead Nua 66 km · Tullamore 71 km · Naas 74 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 Kilkenny (52.6542°, -7.2522°, elevation 48 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).