Carlow weather in April

In April, Carlow sees average daytime highs of 12°C and overnight lows near 5°C, with 68 mm of rain across 12.7 wet days and about 13.6 hours of daylight. It is the 7th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 11°C in the first days to 13°C by the end. The sky is clear or mostly clear about 10% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of April to 14 h 36 min by month's end. Set against the rest of the year, April is Carlow's 1st-clearest and 7th-windiest month. For the whole year in context, see Carlow's year-round climate.

Daytime high: 12°; 7th warmest
Overnight low: 5°; 6th coldest
Rainfall: 68 mm; 12.7 wet days
Daylight: 13 h 42 min; 5:38 AM – 7:18 PM
Cloud cover: 75%; 1st clearest
Wind: 13 km/h; 7th windiest
Solar energy: 4.01 kWh/m²
Travel score: 2.9; 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.

← March Carlow year-round climate May →Best places to visit in April

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 11°C in the first days to 13°C by the end.

A typical April day in Carlow reaches about 12°C in the afternoon and slips back to 5°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 15°C. Set against its neighbours, April runs about 2°C warmer than March and about 3°C cooler than May.

	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
Avg high (°C)	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13	13
Avg low (°C)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6

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

How April really feels in Carlow

Once humidity and wind are folded in, April 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

April 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 April compares with the rest of the year at a glance. April is the 7th-warmest and 7th-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° / 3°	71	12.8	0.5	7.9	1.1
Feb	8° / 3°	58	11.4	0.8	9.5	1.3
Mar	10° / 3°	59	11.5	0.6	11.5	2.0
Apr	12° / 5°	68	12.7	0	13.6	2.9
May	15° / 7°	67	12.9	0	15.5	4.0
Jun	17° / 10°	71	11.6	0	16.5	5.1
Jul	19° / 12°	67	12.7	0	16.1	5.4
Aug	18° / 12°	73	11.7	0	14.5	5.5
Sep	16° / 10°	62	10.9	0	12.4	4.8
Oct	13° / 7°	80	12.1	0	10.3	3.4
Nov	10° / 5°	79	12.1	0.1	8.4	2.0
Dec	8° / 3°	78	12.6	0.5	7.4	1.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in April, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of April, 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
Clearer (%)	23	24	24	24	24	25	25	25	26	26	26	27	26	25	25	25	25	25	24	23	23	23	23	23	23	23	23	23	23	23
Cloudier (%)	77	76	76	76	76	75	75	75	74	74	74	73	74	75	75	75	75	75	76	77	77	77	77	77	77	77	77	77	77	77

	Clearer (%)	Cloudier (%)
1	23	77
2	24	76
3	24	76
4	24	76
5	24	76
6	25	75
7	25	75
8	25	75
9	26	74
10	26	74
11	26	74
12	27	73
13	26	74
14	25	75
15	25	75
16	25	75
17	25	75
18	25	75
19	24	76
20	23	77
21	23	77
22	23	77
23	23	77
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	23	77

Chance of precipitation in April

Any precipitation

Carlow gets around 68 mm of rain over 12.7 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 41% and peaks near 45% 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
Rain chance (%)	39	40	40	40	40	40	40	39	39	39	38	38	38	38	39	39	40	41	42	43	43	44	44	44	45	45	44	44	44	44

	Rain chance (%)
1	39
2	40
3	40
4	40
5	40
6	40
7	40
8	39
9	39
10	39
11	38
12	38
13	38
14	38
15	39
16	39
17	40
18	41
19	42
20	43
21	43
22	44
23	44
24	44
25	45
26	45
27	44
28	44
29	44
30	44

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 100% 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
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in April

Winds average 13 km/h in April.

Across April, 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.

	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
Wind speed (km/h)	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13
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

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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 36 min at the start of April to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 120 minutes over April. Sunrise moves from 6:14 AM to 5:07 AM, and sunset from 6:51 PM to 7:43 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
Daylight (h)	12.6	12.7	12.8	12.8	12.9	13.0	13.0	13.1	13.2	13.3	13.3	13.4	13.5	13.5	13.6	13.7	13.7	13.8	13.9	13.9	14.0	14.1	14.1	14.2	14.3	14.3	14.4	14.5	14.5	14.6
Sunrise (AM)	6:14	6:11	6:09	6:06	6:04	6:02	5:59	5:57	5:54	5:52	5:50	5:47	5:45	5:43	5:40	5:38	5:36	5:33	5:31	5:29	5:27	5:24	5:22	5:20	5:18	5:16	5:13	5:11	5:09	5:07
Sunset (PM)	6:51	6:53	6:55	6:56	6:58	7:00	7:02	7:04	7:05	7:07	7:09	7:11	7:13	7:14	7:16	7:18	7:20	7:22	7:23	7:25	7:27	7:29	7:30	7:32	7:34	7:36	7:38	7:39	7:41	7:43

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.6	6:14	6:51
2	12.7	6:11	6:53
3	12.8	6:09	6:55
4	12.8	6:06	6:56
5	12.9	6:04	6:58
6	13.0	6:02	7:00
7	13.0	5:59	7:02
8	13.1	5:57	7:04
9	13.2	5:54	7:05
10	13.3	5:52	7:07
11	13.3	5:50	7:09
12	13.4	5:47	7:11
13	13.5	5:45	7:13
14	13.5	5:43	7:14
15	13.6	5:40	7:16
16	13.7	5:38	7:18
17	13.7	5:36	7:20
18	13.8	5:33	7:22
19	13.9	5:31	7:23
20	13.9	5:29	7:25
21	14.0	5:27	7:27
22	14.1	5:24	7:29
23	14.1	5:22	7:30
24	14.2	5:20	7:32
25	14.3	5:18	7:34
26	14.3	5:16	7:36
27	14.4	5:13	7:38
28	14.5	5:11	7:39
29	14.5	5:09	7:41
30	14.6	5:07	7:43

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.01 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 — April's 4.01 kWh/m² falls in the middle.

	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
Solar energy (kWh/m²)	3.4	3.4	3.5	3.5	3.6	3.6	3.7	3.7	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.1	4.1	4.1	4.2	4.2	4.2	4.3	4.3	4.3	4.4	4.4	4.4	4.5	4.5	4.5
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.4	Moderate
2	3.4	Moderate
3	3.5	Moderate
4	3.5	Moderate
5	3.6	Moderate
6	3.6	Moderate
7	3.7	Moderate
8	3.7	Moderate
9	3.8	Moderate
10	3.8	Moderate
11	3.9	Moderate
12	3.9	Moderate
13	3.9	Moderate
14	4.0	Moderate
15	4.0	Bright
16	4.1	Bright
17	4.1	Bright
18	4.1	Bright
19	4.2	Bright
20	4.2	Bright
21	4.2	Bright
22	4.3	Bright
23	4.3	Bright
24	4.3	Bright
25	4.4	Bright
26	4.4	Bright
27	4.4	Bright
28	4.5	Bright
29	4.5	Bright
30	4.5	Bright

Planning a trip in April

Is April a good time to visit Carlow?

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

2.9

Sightseeing

7th-best month of the year

0.0

Beach & pool

7th-best month of the year

April is a weaker month for outdoor sightseeing in Carlow.

What to pack for Carlow in April

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

In April, Carlow sees daytime highs around 12°C and nights near 5°C. Worth packing: a warm layer and rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Carlow in April

The nearest coast averages about 9°C in April — 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	9	8	8	9	10	12	14	15	15	14	12	11
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	9	Bracing
Feb	8	Bracing
Mar	8	Bracing
Apr	9	Bracing
May	10	Bracing
Jun	12	Bracing
Jul	14	Bracing
Aug	15	Cool
Sep	15	Cool
Oct	14	Bracing
Nov	12	Bracing
Dec	11	Bracing

UV index in Carlow in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 4 — 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	1	3	4	5	6	5	6	4	2	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	3	Moderate
Apr	4	Moderate
May	5	High
Jun	6	High
Jul	5	High
Aug	6	High
Sep	4	Moderate
Oct	2	Moderate
Nov	1	Low
Dec	1	Low

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.

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

grassland 44%

16 km

320 m

grassland 60%

80 km

933 m

grassland 64%

treesgrasslandcroplandartificial surfaceswater

← March Carlow year-round climate May →Best places to visit in April

April 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

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).

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

	Clearer (%)	Cloudier (%)
1	23	77
2	24	76
3	24	76
4	24	76
5	24	76
6	25	75
7	25	75
8	25	75
9	26	74
10	26	74
11	26	74
12	27	73
13	26	74
14	25	75
15	25	75
16	25	75
17	25	75
18	25	75
19	24	76
20	23	77
21	23	77
22	23	77
23	23	77
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	23	77

	Rain chance (%)
1	39
2	40
3	40
4	40
5	40
6	40
7	40
8	39
9	39
10	39
11	38
12	38
13	38
14	38
15	39
16	39
17	40
18	41
19	42
20	43
21	43
22	44
23	44
24	44
25	45
26	45
27	44
28	44
29	44
30	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	23	77
2	24	76
3	24	76
4	24	76
5	24	76
6	25	75
7	25	75
8	25	75
9	26	74
10	26	74
11	26	74
12	27	73
13	26	74
14	25	75
15	25	75
16	25	75
17	25	75
18	25	75
19	24	76
20	23	77
21	23	77
22	23	77
23	23	77
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	23	77

	Rain chance (%)
1	39
2	40
3	40
4	40
5	40
6	40
7	40
8	39
9	39
10	39
11	38
12	38
13	38
14	38
15	39
16	39
17	40
18	41
19	42
20	43
21	43
22	44
23	44
24	44
25	45
26	45
27	44
28	44
29	44
30	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

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

	Clearer (%)	Cloudier (%)
1	23	77
2	24	76
3	24	76
4	24	76
5	24	76
6	25	75
7	25	75
8	25	75
9	26	74
10	26	74
11	26	74
12	27	73
13	26	74
14	25	75
15	25	75
16	25	75
17	25	75
18	25	75
19	24	76
20	23	77
21	23	77
22	23	77
23	23	77
24	23	77
25	23	77
26	23	77
27	23	77
28	23	77
29	23	77
30	23	77

	Rain chance (%)
1	39
2	40
3	40
4	40
5	40
6	40
7	40
8	39
9	39
10	39
11	38
12	38
13	38
14	38
15	39
16	39
17	40
18	41
19	42
20	43
21	43
22	44
23	44
24	44
25	45
26	45
27	44
28	44
29	44
30	44

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100