Weymouth weather in May

In May, Weymouth sees average daytime highs of 13°C and overnight lows near 10°C, with 54 mm of rain across 9.3 wet days and about 15.2 hours of daylight. It is the 6th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 14°C by the end. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 24 min at the start of May to 15 h 54 min by month's end. Set against the rest of the year, May is Weymouth's 5th-clearest and 9th-windiest month. For the whole year in context, see Weymouth's year-round climate.

Daytime high
13°
6th warmest
Overnight low
10°
7th coldest
Rainfall
54 mm
9.3 wet days
Daylight
15 h 18 min
4:29 AM – 7:44 PM
Cloud cover
63%
5th clearest
Wind
21 km/h
9th windiest
Solar energy
5.48 kWh/m²
Travel score
3.6
out of 10

Weymouth is town in Dorset, England.

Density
2,887/km²
people per km²

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 12°C in the first days to 14°C by the end.

A typical May day in Weymouth reaches about 13°C in the afternoon and slips back to 10°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 15°C. Set against its neighbours, May runs about 2°C warmer than April and about 2°C cooler than June.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1129
2129
3129
4129
5129
6129
7129
8129
9129
101210
111310
121310
131310
141310
151310
161310
171310
181310
191310
201311
211311
221311
231411
241411
251411
261411
271411
281411
291411
301411
311412

Weymouth weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 9814.48.31.5
Feb / 6911.29.71.3
Mar / 5910.511.51.8
Apr11° / 5910.113.52.5
May13° / 10°549.315.23.6
Jun15° / 13°539.216.24.7
Jul17° / 15°488.615.85.8
Aug18° / 15°679.814.35.9
Sep17° / 14°6710.112.45.3
Oct14° / 12°1161410.43.8
Nov12° / 11915.48.72.6
Dec10° / 10814.57.81.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14159
24159
34159
44159
54159
64159
74159
84159
94159
104159
114159
124159
134159
144159
154159
164258
174159
184159
194258
204159
214159
224159
234258
244258
254258
264357
274258
284258
294357
304357
314357

Chance of precipitation in May

Any precipitation

Weymouth gets around 54 mm of rain over 9.3 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 31% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
233
332
432
531
631
730
830
930
1030
1130
1231
1331
1431
1531
1631
1730
1830
1930
2030
2130
2231
2331
2431
2530
2630
2730
2830
2931
3031
3131

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20982
21982
22982
23982
24982
25973
26973
27973
28973
29964
30964
31955

Wind in May

Winds average 21 km/h in May.

Across May, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1720breezy
1820breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320breezy
2420breezy
2520light breeze
2620light breeze
2720light breeze
2820light breeze
2920light breeze
3020light breeze
3120light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 24 min at the start of May to 15 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over May. Sunrise moves from 4:54 AM to 4:11 AM, and sunset from 7:20 PM to 8:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.44:547:20
214.54:527:22
314.64:507:24
414.64:487:25
514.74:467:27
614.74:457:28
714.84:437:30
814.84:417:32
914.94:397:33
1014.94:387:35
1115.04:367:36
1215.14:357:38
1315.14:337:39
1415.24:317:41
1515.24:307:42
1615.34:297:44
1715.34:277:45
1815.34:267:47
1915.44:247:48
2015.44:237:49
2115.54:227:51
2215.54:217:52
2315.64:197:53
2415.64:187:55
2515.64:177:56
2615.74:167:57
2715.74:157:59
2815.84:148:00
2915.84:138:01
3015.84:128:02
3115.94:118:03

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.48 kWh/m².

For context, solar energy here swings from a low near 0.72 kWh/m² to a high of 5.86 kWh/m² in June across the year — May's 5.48 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in May

Is May a good time to visit Weymouth?

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

3.6
Sightseeing
6th-best month of the year
0.0
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Weymouth.

What to pack for Weymouth in May

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

In May, Weymouth sees daytime highs around 13°C and nights near 10°C. Worth packing: a warm layer, rain gear, sun protection and a windbreaker. About 9 days see rain.

a warm layerrain gearsun protectiona windbreaker

Sea temperature near Weymouth 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 March near 8°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan10Bracing
Feb9Bracing
Mar8Bracing
Apr10Bracing
May11Bracing
Jun14Bracing
Jul16Cool
Aug17Cool
Sep17Cool
Oct16Cool
Nov13Bracing
Dec11Bracing

UV index in Weymouth in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Weymouth peaks around August 13 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. 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
May6High
Jun6High
Jul6High
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Weymouth?

Weymouth sits at 50.6°N, 2.5°W, -2 m above sea level, in United Kingdom. The nearest listed city is Dorchester, 12 km away.

Topography around Weymouth

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

Within 3 km, the terrain around Weymouth has only modest variations in elevation — a maximum elevation change of 71 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 241 m; within 80 km, significant variations in elevation — a maximum elevation change of 382 m.

The land around Weymouth is covered by water (35%), artificial surfaces (24%) and grassland (22%) within 3 km, water (55%) and grassland (22%) within 16 km, and water (41%) and grassland (33%) within 80 km.

3 km
71 m
16 km
241 m
80 km
382 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Dorchester 12 km · Poole 35 km · Yeovil 38 km · Wimborne Minster 38 km · Bournemouth 43 km · Ferndown 45 km · Christchurch 50 km · New Milton 58 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 Weymouth (50.6145°, -2.4599°, elevation -2 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).