Weymouth weather in December

In December, Weymouth sees average daytime highs of 10°C and overnight lows near 7°C, with 108 mm of precipitation across 14.5 wet days and about 7.8 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 10°C through the month. The sky is clear or mostly clear about 17% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 06 min at the start of December to 7 h 48 min by month's end. Set against the rest of the year, December is Weymouth's 11th-clearest and 1st-windiest month. For the whole year in context, see Weymouth's year-round climate.

Daytime high
10°
9th warmest
Overnight low
4th coldest
Precipitation
108 mm
14.5 wet days
Daylight
7 h 48 min
8:13 AM – 3:59 PM
Cloud cover
72%
11th clearest
Wind
29 km/h
1st windiest
Solar energy
0.72 kWh/m²
Travel score
1.8
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 December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 10°C through the month.

A typical December day in Weymouth reaches about 10°C in the afternoon and slips back to 7°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 13°C. Set against its neighbours, December runs about 2°C cooler than November and about 1°C warmer than January.

10°15°151015202531
Avg high (°C)Avg low (°C)
1108
2108
3108
4108
5108
6108
7107
8107
9107
10107
11107
12107
13107
14107
15107
16107
17107
18107
19107
2097
2197
2297
2397
2497
2597
2697
2797
2897
2997
3097
3197

Weymouth weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 3rd-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 69%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33367
43466
53466
63466
73466
83466
93367
103367
113268
123268
133070
143070
152971
162971
172872
182773
192773
202773
212872
222971
232971
243070
253070
263070
273070
283169
293169
303070
313169

Chance of precipitation in December

Any precipitation

Weymouth gets around 108 mm of rain and snow over 14.5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 47% and peaks near 49% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202531
Rain chance (%)
148
248
347
447
546
646
745
845
945
1045
1146
1246
1346
1447
1547
1647
1748
1848
1948
2048
2148
2249
2348
2448
2548
2648
2748
2847
2947
3048
3148

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 29 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 28 km/h on the calmest days to 29 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
128breezy
228breezy
329breezy
429breezy
529breezy
629breezy
729breezy
829breezy
929breezy
1029breezy
1129breezy
1229breezy
1329breezy
1429breezy
1529breezy
1628breezy
1728breezy
1828breezy
1928breezy
2029breezy
2129breezy
2229breezy
2329breezy
2429breezy
2529breezy
2629breezy
2729breezy
2829breezy
2929breezy
3029windy
3129windy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 06 min at the start of December to 7 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over December. Sunrise moves from 7:57 AM to 8:19 AM, and sunset from 4:02 PM to 4:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.17:574:02
28.17:584:02
38.08:004:01
48.08:014:01
58.08:024:00
67.98:034:00
77.98:044:00
87.98:053:59
97.98:063:59
107.98:073:59
117.88:083:59
127.88:093:59
137.88:103:59
147.88:113:59
157.88:123:59
167.88:133:59
177.88:134:00
187.88:144:00
197.88:154:00
207.88:154:00
217.88:164:01
227.78:164:01
237.88:174:02
247.88:174:02
257.88:184:03
267.88:184:04
277.88:184:04
287.88:184:05
297.88:184:06
307.88:194:07
317.88:194:07

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.72 kWh/m² — the year's lowest.

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 — December's 0.72 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.8Dim
30.8Dim
40.8Dim
50.8Dim
60.8Dim
70.8Dim
80.8Dim
90.8Dim
100.8Dim
110.7Dim
120.7Dim
130.7Dim
140.7Dim
150.7Dim
160.7Dim
170.7Dim
180.7Dim
190.7Dim
200.7Dim
210.7Dim
220.7Dim
230.7Dim
240.7Dim
250.7Dim
260.7Dim
270.7Dim
280.7Dim
290.7Dim
300.7Dim
310.7Dim
Planning a trip in December

Is December a good time to visit Weymouth?

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

1.8
Sightseeing
9th-best month of the year
0.0
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Weymouth.

What to pack for Weymouth in December

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

In December, Weymouth sees daytime highs around 10°C and nights near 7°C. Pack a warm layer, rain gear and a windbreaker. About 15 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Weymouth in December

The nearest coast averages about 11°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. 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
December 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).