Carlow weather in August

In August, Carlow sees average daytime highs of 18°C and overnight lows near 12°C, with 73 mm of rain across 11.7 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 5% 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 Carlow's 11th-clearest and 11th-windiest month. For the whole year in context, see Carlow's year-round climate.

Daytime high
18°
2nd warmest
Overnight low
12°
11th coldest
Rainfall
73 mm
11.7 wet days
Daylight
14 h 30 min
5:16 AM – 7:48 PM
Cloud cover
80%
11th clearest
Wind
12 km/h
11th windiest
Solar energy
3.86 kWh/m²
Travel score
5.5
out of 10

Carlow is county town of County Carlow, Leinster, Ireland.

Air quality
Good
PM2.5 7.6 µg/m³ · 2019
Density
219/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 Carlow reaches about 18°C in the afternoon and slips back to 12°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
131912
141912
151912
161912
171912
181811
191811
201811
211811
221811
231811
241811
251811
261811
271811
281811
291811
301811
311811

How August really feels in Carlow

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.

Carlow 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 / 7112.80.57.91.1
Feb / 5811.40.89.51.3
Mar10° / 5911.50.611.52.0
Apr12° / 6812.7013.62.9
May15° / 6712.9015.54.0
Jun17° / 10°7111.6016.55.1
Jul19° / 12°6712.7016.15.4
Aug18° / 12°7311.7014.55.5
Sep16° / 10°6210.9012.44.8
Oct13° / 8012.1010.33.4
Nov10° / 7912.10.18.42.0
Dec / 7812.60.57.41.2

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 13% of August, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31684
41684
51684
61783
71783
81783
91783
101783
111783
121783
131783
141783
151684
161684
171684
181783
191783
201783
211882
221882
231981
241981
251981
261981
271981
281981
291981
301981
312080

Chance of precipitation in August

Any precipitation

Carlow gets around 73 mm of rain over 11.7 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 43% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
243
343
443
543
642
742
842
942
1041
1141
1241
1341
1441
1541
1640
1740
1840
1939
2038
2137
2236
2335
2433
2532
2631
2730
2829
2929
3028
3128

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
362326
462326
563316
663316
763307
863307
963307
1064297
1164297
1264297
1365287
1466286
1566286
1666286
1767276
1868275
1969265
2069265
2171254
2271254
2373243
2473243
2574233
2674233
2775223
2875223
2976213
3076213
3176213

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 12 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
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light 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 4:51 AM to 5:42 AM, and sunset from 8:17 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.44:518:17
215.44:528:15
315.34:548:13
415.34:568:12
515.24:578:10
615.14:598:08
715.15:018:06
815.05:028:04
915.05:048:02
1014.95:068:00
1114.85:077:58
1214.85:097:56
1314.75:117:54
1414.75:127:52
1514.65:147:50
1614.55:167:48
1714.55:187:46
1814.45:197:43
1914.35:217:41
2014.35:237:39
2114.25:247:37
2214.15:267:35
2314.15:287:32
2414.05:307:30
2513.95:317:28
2613.95:337:25
2713.85:357:23
2813.75:377:21
2913.75:387:18
3013.65:407:16
3113.55:427:14

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.86 kWh/m².

For context, solar energy here swings from a low near 0.56 kWh/m² to a high of 5.06 kWh/m² in June across the year — August's 3.86 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.0Bright
84.0Bright
94.0Bright
104.0Moderate
114.0Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.4Moderate
Planning a trip in August

Is August a good time to visit Carlow?

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

5.5
Sightseeing
1st-best month of the year
2.1
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Carlow for sightseeing.

What to pack for Carlow in August

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

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

rain gear

Sea temperature near Carlow in August

The nearest coast averages about 15°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 54 km away) is warmest in September at about 15°C and coldest in March 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
May10Bracing
Jun12Bracing
Jul14Bracing
Aug15Cool
Sep15Cool
Oct14Bracing
Nov12Bracing
Dec11Bracing

UV index in Carlow 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 Carlow 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
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Carlow?

Carlow sits at 52.8°N, 6.9°W, 55 m above sea level, in Ireland. The nearest listed city is Kilkenny, 30 km away.

KilkennyPortlaoiseDroichead NuaNaasTullamoreCelbridgeTallaghtSouth Dublin

Topography around Carlow

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

Within 3 km, the terrain around Carlow has only modest variations in elevation — a maximum elevation change of 57 m around an average of 57 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 320 m; within 80 km, large variations in elevation — a maximum elevation change of 933 m.

The land around Carlow is covered by grassland (44%) and cropland (28%) within 3 km, grassland (60%) and cropland (28%) within 16 km, and grassland (64%) within 80 km.

3 km
57 m
16 km
320 m
80 km
933 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Kilkenny 30 km · Portlaoise 33 km · Droichead Nua 39 km · Naas 45 km · Tullamore 61 km · Celbridge 61 km · Tallaght 62 km · South Dublin 63 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 Carlow (52.8408°, -6.9261°, elevation 55 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).