Isle of Lewis weather in April

In April, Isle of Lewis sees average daytime highs of 11°C and overnight lows near 5°C, with 74 mm of precipitation across 16.1 wet days and about 14 hours of daylight. It is the 7th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 10°C in the first days to 12°C by the end. The sky is clear or mostly clear about 9% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 48 min at the start of April to 15 h 12 min by month's end. Set against the rest of the year, April is Isle of Lewis's 3rd-clearest and 7th-windiest month. For the whole year in context, see Isle of Lewis's year-round climate.

Daytime high: 11°; 7th warmest
Overnight low: 5°; 5th coldest
Precipitation: 74 mm; 16.1 wet days
Daylight: 14 hours; 5:24 AM – 7:27 PM
Cloud cover: 76%; 3rd clearest
Wind: 19 km/h; 7th windiest
Solar energy: 3.86 kWh/m²
Travel score: 2.2; out of 10

← March Isle of Lewis 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 10°C in the first days to 12°C by the end.

A typical April day in Isle of Lewis reaches about 11°C in the afternoon and slips back to 5°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 14°C. Set against its neighbours, April runs about 2°C warmer than March and about 2°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)	10	10	10	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	11	12	12	12	12	12	12	12	12
Avg low (°C)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6

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

How April really feels in Isle of Lewis

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.

Isle of Lewis weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 12th-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° / 4°	100	16.2	1.1	6.9	1.0
Feb	8° / 4°	80	14.8	2	8.9	1.1
Mar	9° / 4°	84	16.8	1.3	11.4	1.4
Apr	11° / 5°	74	16.1	0.4	14	2.2
May	13° / 7°	76	16.8	0	16.4	3.0
Jun	15° / 10°	79	16.6	0	17.8	3.6
Jul	17° / 11°	88	18.6	0	17.2	4.1
Aug	17° / 11°	94	17.9	0	15.1	4.2
Sep	15° / 10°	89	15.8	0	12.5	3.7
Oct	12° / 8°	103	17.6	0	9.9	2.7
Nov	10° / 6°	91	16.3	0.2	7.5	1.7
Dec	8° / 4°	90	15.7	1	6.2	1.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 75%.

	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 (%)	22	22	21	21	22	21	21	23	23	23	24	25	26	26	26	26	27	27	27	27	27	26	27	27	27	26	26	25	25	26
Cloudier (%)	78	78	79	79	78	79	79	77	77	77	76	75	74	74	74	74	73	73	73	73	73	74	73	73	73	74	74	75	75	74

	Clearer (%)	Cloudier (%)
1	22	78
2	22	78
3	21	79
4	21	79
5	22	78
6	21	79
7	21	79
8	23	77
9	23	77
10	23	77
11	24	76
12	25	75
13	26	74
14	26	74
15	26	74
16	26	74
17	27	73
18	27	73
19	27	73
20	27	73
21	27	73
22	26	74
23	27	73
24	27	73
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	26	74

Chance of precipitation in April

Any precipitationSnow

Isle of Lewis gets around 74 mm of rain and snow over 16.1 wet days in April, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 53% and peaks near 55% on the wettest days, and about 0 day brings snow.

	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 (%)	53	54	54	54	54	54	54	54	53	53	52	52	52	52	51	52	52	52	52	53	53	53	54	54	54	55	55	55	55	55
Snow chance (%)	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1

	Rain chance (%)	Snow chance (%)
1	53	2
2	54	2
3	54	2
4	54	2
5	54	2
6	54	2
7	54	2
8	54	2
9	53	2
10	53	2
11	52	2
12	52	1
13	52	1
14	52	1
15	51	1
16	52	1
17	52	1
18	52	1
19	52	1
20	53	1
21	53	1
22	53	1
23	54	1
24	54	1
25	54	1
26	55	1
27	55	1
28	55	1
29	55	1
30	55	1

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 19 km/h in April.

Across April, daily wind ranges from about 18 km/h on the calmest days to 20 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)	20	20	20	20	20	20	20	20	20	20	19	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18	18	18	18	18
Feels	breezy	breezy	breezy	breezy	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	20	breezy
2	20	breezy
3	20	breezy
4	20	breezy
5	20	light breeze
6	20	light breeze
7	20	light breeze
8	20	light breeze
9	20	light breeze
10	20	light breeze
11	19	light breeze
12	19	light breeze
13	19	light breeze
14	19	light breeze
15	19	light breeze
16	19	light breeze
17	19	light breeze
18	19	light breeze
19	19	light breeze
20	19	light breeze
21	18	light breeze
22	18	light breeze
23	18	light breeze
24	18	light breeze
25	18	light breeze
26	18	light breeze
27	18	light breeze
28	18	light breeze
29	18	light breeze
30	18	light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 48 min at the start of April to 15 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 144 minutes over April. Sunrise moves from 6:07 AM to 4:47 AM, and sunset from 6:53 PM to 7:59 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)	12.8	12.8	12.9	13.0	13.1	13.2	13.3	13.4	13.4	13.5	13.6	13.7	13.8	13.9	14.0	14.0	14.1	14.2	14.3	14.4	14.5	14.6	14.6	14.7	14.8	14.9	15.0	15.0	15.1	15.2
Sunrise (AM)	6:07	6:05	6:02	5:59	5:56	5:53	5:50	5:47	5:44	5:41	5:39	5:36	5:33	5:30	5:27	5:24	5:22	5:19	5:16	5:13	5:10	5:08	5:05	5:02	5:00	4:57	4:54	4:52	4:49	4:47
Sunset (PM)	6:53	6:55	6:58	7:00	7:02	7:04	7:07	7:09	7:11	7:13	7:16	7:18	7:20	7:23	7:25	7:27	7:29	7:32	7:34	7:36	7:39	7:41	7:43	7:46	7:48	7:50	7:52	7:55	7:57	7:59

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.8	6:07	6:53
2	12.8	6:05	6:55
3	12.9	6:02	6:58
4	13.0	5:59	7:00
5	13.1	5:56	7:02
6	13.2	5:53	7:04
7	13.3	5:50	7:07
8	13.4	5:47	7:09
9	13.4	5:44	7:11
10	13.5	5:41	7:13
11	13.6	5:39	7:16
12	13.7	5:36	7:18
13	13.8	5:33	7:20
14	13.9	5:30	7:23
15	14.0	5:27	7:25
16	14.0	5:24	7:27
17	14.1	5:22	7:29
18	14.2	5:19	7:32
19	14.3	5:16	7:34
20	14.4	5:13	7:36
21	14.5	5:10	7:39
22	14.6	5:08	7:41
23	14.6	5:05	7:43
24	14.7	5:02	7:46
25	14.8	5:00	7:48
26	14.9	4:57	7:50
27	15.0	4:54	7:52
28	15.0	4:52	7:55
29	15.1	4:49	7:57
30	15.2	4:47	7:59

Solar energy in April

Daily solar energy (kWh/m²)

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

For context, solar energy here swings from a low near 0.27 kWh/m² to a high of 5.2 kWh/m² in June across the year — April's 3.86 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)	3.0	3.0	3.1	3.1	3.2	3.3	3.3	3.4	3.4	3.5	3.6	3.6	3.7	3.8	3.8	3.9	4.0	4.0	4.1	4.1	4.2	4.3	4.3	4.4	4.4	4.5	4.5	4.6	4.6	4.7
Level	Moderate	Moderate	Moderate	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

	Solar energy (kWh/m²)	Level
1	3.0	Moderate
2	3.0	Moderate
3	3.1	Moderate
4	3.1	Moderate
5	3.2	Moderate
6	3.3	Moderate
7	3.3	Moderate
8	3.4	Moderate
9	3.4	Moderate
10	3.5	Moderate
11	3.6	Moderate
12	3.6	Moderate
13	3.7	Moderate
14	3.8	Moderate
15	3.8	Moderate
16	3.9	Moderate
17	4.0	Moderate
18	4.0	Bright
19	4.1	Bright
20	4.1	Bright
21	4.2	Bright
22	4.3	Bright
23	4.3	Bright
24	4.4	Bright
25	4.4	Bright
26	4.5	Bright
27	4.5	Bright
28	4.6	Bright
29	4.6	Bright
30	4.7	Bright

Planning a trip in April

Is April a good time to visit Isle of Lewis?

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

2.2

Sightseeing

7th-best month of the year

—

Beach & pool

never really warm enough

April is a weaker month for outdoor sightseeing in Isle of Lewis.

What to pack for Isle of Lewis in April

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

In April, Isle of Lewis sees daytime highs around 11°C and nights near 5°C. Pack a warm layer and rain gear. About 16 days see rain.

a warm layerrain gear

Sea temperature near Isle of Lewis in April

The nearest coast averages about 8°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 13°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	8	9	11	13	13	13	12	11	10
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	9	Bracing
Feb	8	Bracing
Mar	8	Bracing
Apr	8	Bracing
May	9	Bracing
Jun	11	Bracing
Jul	13	Bracing
Aug	13	Bracing
Sep	13	Bracing
Oct	12	Bracing
Nov	11	Bracing
Dec	10	Bracing

UV index in Isle of Lewis in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Isle of Lewis peaks around July 12 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 19 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	3	4	5	5	4	2	1	0	0
Level	Low	Low	Low	Moderate	Moderate	Moderate	High	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Low
Apr	3	Moderate
May	4	Moderate
Jun	5	Moderate
Jul	5	High
Aug	4	Moderate
Sep	2	Moderate
Oct	1	Low
Nov	0	Low
Dec	0	Low

Location & terrain

Where is Isle of Lewis?

Isle of Lewis sits at 58.2°N, 6.4°W, 14 m above sea level, in United Kingdom. The nearest listed city is Inverness, 152 km away.

Topography around Isle of Lewis

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

Within 3 km, the terrain around Isle of Lewis has only modest variations in elevation — a maximum elevation change of 101 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 287 m; within 80 km, large variations in elevation — a maximum elevation change of 1,019 m.

The land around Isle of Lewis is covered by grassland (68%) within 3 km, grassland (60%) and water (37%) within 16 km, and water (77%) and grassland (22%) within 80 km.

3 km

101 m

grassland 68%

16 km

287 m

grassland 60%

80 km

1,019 m

water 77%

treesgrasslandartificial surfacesbare terrainwaterwetland

← March Isle of Lewis year-round climate May →Best places to visit in April

April weather nearby: Inverness 152 km · Fort William 174 km · Elgin 192 km · Perth 270 km · Greenock 271 km · Vale of Leven 273 km · Dumbarton 276 km · Stirling 276 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

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 Isle of Lewis (58.219°, -6.388°, elevation 14 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	10	5
2	10	5
3	10	5
4	10	5
5	10	5
6	10	5
7	10	5
8	10	5
9	10	5
10	10	5
11	11	5
12	11	5
13	11	5
14	11	5
15	11	5
16	11	5
17	11	5
18	11	5
19	11	6
20	11	6
21	11	6
22	11	6
23	12	6
24	12	6
25	12	6
26	12	6
27	12	6
28	12	6
29	12	6
30	12	6

	Clearer (%)	Cloudier (%)
1	22	78
2	22	78
3	21	79
4	21	79
5	22	78
6	21	79
7	21	79
8	23	77
9	23	77
10	23	77
11	24	76
12	25	75
13	26	74
14	26	74
15	26	74
16	26	74
17	27	73
18	27	73
19	27	73
20	27	73
21	27	73
22	26	74
23	27	73
24	27	73
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	26	74

	Rain chance (%)	Snow chance (%)
1	53	2
2	54	2
3	54	2
4	54	2
5	54	2
6	54	2
7	54	2
8	54	2
9	53	2
10	53	2
11	52	2
12	52	1
13	52	1
14	52	1
15	51	1
16	52	1
17	52	1
18	52	1
19	52	1
20	53	1
21	53	1
22	53	1
23	54	1
24	54	1
25	54	1
26	55	1
27	55	1
28	55	1
29	55	1
30	55	1

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

	Clearer (%)	Cloudier (%)
1	22	78
2	22	78
3	21	79
4	21	79
5	22	78
6	21	79
7	21	79
8	23	77
9	23	77
10	23	77
11	24	76
12	25	75
13	26	74
14	26	74
15	26	74
16	26	74
17	27	73
18	27	73
19	27	73
20	27	73
21	27	73
22	26	74
23	27	73
24	27	73
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	26	74

	Rain chance (%)	Snow chance (%)
1	53	2
2	54	2
3	54	2
4	54	2
5	54	2
6	54	2
7	54	2
8	54	2
9	53	2
10	53	2
11	52	2
12	52	1
13	52	1
14	52	1
15	51	1
16	52	1
17	52	1
18	52	1
19	52	1
20	53	1
21	53	1
22	53	1
23	54	1
24	54	1
25	54	1
26	55	1
27	55	1
28	55	1
29	55	1
30	55	1

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

	Clearer (%)	Cloudier (%)
1	22	78
2	22	78
3	21	79
4	21	79
5	22	78
6	21	79
7	21	79
8	23	77
9	23	77
10	23	77
11	24	76
12	25	75
13	26	74
14	26	74
15	26	74
16	26	74
17	27	73
18	27	73
19	27	73
20	27	73
21	27	73
22	26	74
23	27	73
24	27	73
25	27	73
26	26	74
27	26	74
28	25	75
29	25	75
30	26	74

	Rain chance (%)	Snow chance (%)
1	53	2
2	54	2
3	54	2
4	54	2
5	54	2
6	54	2
7	54	2
8	54	2
9	53	2
10	53	2
11	52	2
12	52	1
13	52	1
14	52	1
15	51	1
16	52	1
17	52	1
18	52	1
19	52	1
20	53	1
21	53	1
22	53	1
23	54	1
24	54	1
25	54	1
26	55	1
27	55	1
28	55	1
29	55	1
30	55	1

	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