Llandudno weather in December

In December, Llandudno sees average daytime highs of 8°C and overnight lows near 3°C, with 93 mm of precipitation across 15.6 wet days and about 7.4 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 8°C through the month. The sky is clear or mostly clear about 12% of the time in December, and the air most often feels dry.

Daylight stretches from about 7 h 36 min at the start of December to 7 h 18 min by month's end. Set against the rest of the year, December is Llandudno's 7th-clearest and 3rd-windiest month. For the whole year in context, see Llandudno's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
93 mm
15.6 wet days
Daylight
7 h 18 min
8:33 AM – 3:50 PM
Cloud cover
74%
7th clearest
Wind
17 km/h
3rd windiest
Solar energy
0.52 kWh/m²
Travel score
1.0
out of 10

Llandudno is seaside resort in North Wales, UK.

Founded
1291

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 8°C through the month.

A typical December day in Llandudno reaches about 8°C in the afternoon and slips back to 3°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 12°C. Set against its neighbours, December runs about 2°C cooler than November and on par with January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
194
284
384
484
584
684
784
884
984
1084
1184
1284
1384
1483
1583
1683
1783
1873
1973
2073
2173
2273
2373
2473
2573
2673
2773
2873
2973
3073
3173

How December really feels in Llandudno

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 23 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
23
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Llandudno weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 7914.31.27.80.8
Feb / 7013.31.19.40.9
Mar / 7014.4111.51.6
Apr12° / 7114.10.513.72.7
May15° / 7013.90.115.63.9
Jun17° / 10°8313.6016.64.8
Jul19° / 12°7714.6016.25.2
Aug19° / 12°7914.5014.65.2
Sep16° / 10°7313012.44.6
Oct13° / 8314.50.110.33.2
Nov10° / 9015.80.38.41.8
Dec / 9315.61.17.41.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% 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 74%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12872
22872
32872
42872
52971
62872
72872
82872
92773
102773
112773
122674
132674
142674
152575
162575
172575
182476
192377
202476
212476
222476
232476
242476
252575
262674
272674
282674
292773
302773
312773

Chance of precipitation in December

Any precipitationSnow

Llandudno gets around 93 mm of rain and snow over 15.6 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 49% and peaks near 50% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
1491
2491
3501
4501
5501
6501
7491
8491
9491
10491
11492
12492
13492
14492
15492
16493
17493
18493
19493
20494
21504
22504
23505
24505
25505
26505
27505
28505
29505
30505
31495

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 17 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 7 h 36 min at the start of December to 7 h 18 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 8:16 AM to 8:39 AM, and sunset from 3:54 PM to 3:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
17.68:163:54
27.68:173:54
37.68:193:53
47.58:203:52
57.58:213:52
67.58:233:51
77.58:243:51
87.48:253:51
97.48:263:50
107.48:273:50
117.48:283:50
127.38:293:50
137.38:303:50
147.38:313:50
157.38:323:50
167.38:333:50
177.38:343:50
187.38:343:50
197.38:353:51
207.38:363:51
217.38:363:51
227.38:373:52
237.38:373:52
247.38:383:53
257.38:383:54
267.38:383:54
277.38:383:55
287.38:393:56
297.38:393:56
307.38:393:57
317.38:393:58

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 0.52 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 0.52 kWh/m² to a high of 5.38 kWh/m² in June across the year — December's 0.52 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.6Dim
20.6Dim
30.6Dim
40.6Dim
50.6Dim
60.6Dim
70.6Dim
80.6Dim
90.6Dim
100.5Dim
110.5Dim
120.5Dim
130.5Dim
140.5Dim
150.5Dim
160.5Dim
170.5Dim
180.5Dim
190.5Dim
200.5Dim
210.5Dim
220.5Dim
230.5Dim
240.5Dim
250.5Dim
260.5Dim
270.5Dim
280.5Dim
290.5Dim
300.5Dim
310.5Dim
Planning a trip in December

Is December a good time to visit Llandudno?

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

1.0
Sightseeing
10th-best month of the year
0.0
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Llandudno.

What to pack for Llandudno in December

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

In December, Llandudno sees daytime highs around 8°C and nights near 3°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 16 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Llandudno in December

The nearest coast averages about 10°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 16°C and coldest in March near 7°C.

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

5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar7Bracing
Apr8Bracing
May10Bracing
Jun13Bracing
Jul15Bracing
Aug16Cool
Sep16Cool
Oct14Bracing
Nov12Bracing
Dec10Bracing

UV index in Llandudno 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 Llandudno peaks around August 12 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 12UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May5High
Jun5High
Jul5High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Llandudno?

Llandudno sits at 53.3°N, 3.8°W, 10 m above sea level, in United Kingdom. The nearest listed city is Colwyn Bay, 8.0 km away.

Topography around Llandudno

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

Within 3 km, the terrain around Llandudno has only modest variations in elevation — a maximum elevation change of 199 m around an average of 26 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 856 m; within 80 km, large variations in elevation — a maximum elevation change of 1,055 m.

The land around Llandudno is covered by water (55%) and grassland (23%) within 3 km, water (66%) and grassland (24%) within 16 km, and water (48%) and grassland (36%) within 80 km.

3 km
199 m
16 km
856 m
80 km
1,055 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Colwyn Bay 8.0 km · Rhyl 23 km · Bangor 23 km · Prestatyn 28 km · Flint 47 km · Moreton 48 km · Heswall 49 km · Wallasey 52 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 Llandudno (53.325°, -3.8315°, elevation 10 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).