Heswall weather in May

In May, Heswall sees average daytime highs of 15°C and overnight lows near 8°C, with 68 mm of rain across 12.6 wet days and about 15.6 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 17°C by the end. The sky is clear or mostly clear about 15% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 42 min at the start of May to 16 h 18 min by month's end. Set against the rest of the year, May is Heswall's 1st-clearest and 8th-windiest month. For the whole year in context, see Heswall's year-round climate.

Daytime high
15°
5th warmest
Overnight low
8th coldest
Rainfall
68 mm
12.6 wet days
Daylight
15 h 36 min
4:20 AM – 7:57 PM
Cloud cover
70%
1st clearest
Wind
14 km/h
8th windiest
Solar energy
5.03 kWh/m²
Travel score
4.3
out of 10

Heswall is town in Metropolitan Borough of Wirral, Merseyside, England.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 14°C in the first days to 17°C by the end.

A typical May day in Heswall reaches about 15°C in the afternoon and slips back to 8°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 20°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1147
2147
3147
4147
5147
6147
7147
8158
9158
10158
11158
12158
13158
14158
15158
16158
17158
18159
19169
20169
21169
22169
23169
24169
25169
26169
271610
281710
291710
301710
311710

How May really feels in Heswall

Once humidity and wind are folded in, May 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

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

Heswall weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6213.117.80.9
Feb / 5311.91.29.41.1
Mar10° / 5912.60.711.51.9
Apr12° / 6413.10.213.73.0
May15° / 6812.6015.64.3
Jun18° / 11°8013.2016.65.1
Jul20° / 13°8414.1016.25.5
Aug19° / 13°8013.8014.65.4
Sep17° / 11°6812.3012.44.9
Oct14° / 7113.8010.33.4
Nov10° / 71140.18.42.0
Dec / 7413.70.87.41.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in May, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33367
43367
53367
63367
73367
83367
93268
103268
113169
123070
132971
142971
152872
162872
172773
182773
192872
202872
212872
222872
232872
242971
252971
263070
273070
283169
293169
303268
313268

Chance of precipitation in May

Any precipitation

Heswall gets around 68 mm of rain over 12.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
142
242
342
441
541
640
740
840
940
1040
1141
1241
1341
1441
1541
1641
1741
1841
1941
2041
2142
2242
2342
2443
2543
2643
2744
2844
2945
3045
3145

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
3991
4991
5991
6991
7991
8991
9982
10982
11982
12982
13982
14973
15973
16973
17973
18964
19964
20955
21955
22946
23946
24937
25937
26928
27928
28919
29919
309010
319010

Wind in May

Winds average 14 km/h in May.

Across May, 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
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light 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
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 42 min at the start of May to 16 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 96 minutes over May. Sunrise moves from 4:48 AM to 4:01 AM, and sunset from 7:31 PM to 8:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.74:487:31
214.84:467:33
314.84:447:34
414.94:427:36
515.04:407:38
615.04:387:40
715.14:367:42
815.14:347:43
915.24:337:45
1015.34:317:47
1115.34:297:49
1215.44:277:50
1315.44:257:52
1415.54:247:54
1515.64:227:55
1615.64:207:57
1715.74:197:59
1815.74:178:00
1915.84:168:02
2015.84:148:03
2115.94:138:05
2215.94:118:06
2316.04:108:08
2416.04:098:09
2516.14:078:11
2616.14:068:12
2716.14:058:14
2816.24:048:15
2916.24:038:16
3016.34:028:18
3116.34:018:19

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.03 kWh/m².

For context, solar energy here swings from a low near 0.54 kWh/m² to a high of 5.22 kWh/m² in June across the year — May's 5.03 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
84.9Bright
94.9Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.2Bright
Planning a trip in May

Is May a good time to visit Heswall?

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

4.3
Sightseeing
5th-best month of the year
0.3
Beach & pool
5th-best month of the year

May is a reasonable time to visit Heswall for sightseeing.

What to pack for Heswall in May

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

In May, Heswall sees daytime highs around 15°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.

a warm layerrain gearsun protection

Sea temperature near Heswall in May

The nearest coast averages about 11°C in May — 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 17°C and coldest in February near 6°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan7Bracing
Feb6Bracing
Mar7Bracing
Apr9Bracing
May11Bracing
Jun14Bracing
Jul16Cool
Aug17Cool
Sep16Cool
Oct14Bracing
Nov11Bracing
Dec9Bracing

UV index in Heswall in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Heswall 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
Apr3Moderate
May5High
Jun6High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Heswall?

Heswall sits at 53.3°N, 3.1°W, 88 m above sea level, in United Kingdom. The nearest listed city is Bebington, 6.0 km away.

Topography around Heswall

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

Within 3 km, the terrain around Heswall has only modest variations in elevation — a maximum elevation change of 112 m around an average of 44 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, large variations in elevation — a maximum elevation change of 1,055 m.

The land around Heswall is covered by grassland (34%) and trees (27%) within 3 km, water (33%) and grassland (27%) within 16 km, and grassland (48%) and water (23%) within 80 km.

3 km
112 m
16 km
307 m
80 km
1,055 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Bebington 6.0 km · Moreton 8.0 km · Birkenhead 9.0 km · Flint 9.0 km · Wallasey 11 km · Liverpool 12 km · Garston 13 km · Kensington 13 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 Heswall (53.3273°, -3.0965°, elevation 88 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).