Vilassar de Mar weather in December

In December, Vilassar de Mar sees average daytime highs of 13°C and overnight lows near 9°C, with 53 mm of precipitation across 7 wet days and about 9.1 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 42% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 12 min at the start of December to 9 hours by month's end. Set against the rest of the year, December is Vilassar de Mar's 8th-clearest and 1st-windiest month. For the whole year in context, see Vilassar de Mar's year-round climate.

Daytime high
13°
10th warmest
Overnight low
3rd coldest
Precipitation
53 mm
7 wet days
Daylight
9 hours
8:16 AM – 5:17 PM
Cloud cover
50%
8th clearest
Wind
13 km/h
1st windiest
Solar energy
1.82 kWh/m²
Travel score
3.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 13°C through the month.

A typical December day in Vilassar de Mar reaches about 13°C in the afternoon and slips back to 9°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 15°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11410
21410
31410
41310
51310
61310
71310
81310
91310
101310
111310
121310
131310
14139
15139
16139
17139
18139
19139
20139
21139
22129
23129
24129
25129
26129
27129
28129
29129
30129
31129

Vilassar de Mar weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 5279.33.5
Feb12° / 477.210.33.5
Mar13° / 10°477.311.74.2
Apr15° / 12°558.513.14.8
May18° / 15°487.814.36.2
Jun22° / 19°395.814.97.5
Jul24° / 21°315.214.78.2
Aug25° / 22°436.913.77.7
Sep23° / 19°861112.36.8
Oct19° / 16°10710.910.96.2
Nov15° / 12°7499.75.0
Dec13° / 5379.13.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% 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 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25743
35644
45644
55644
65545
75545
85545
95545
105545
115446
125446
135446
145446
155446
165446
175446
185446
195545
205545
215545
225644
235743
245743
255743
265941
275941
285941
296139
306139
316139

Chance of precipitation in December

Any precipitation

Vilassar de Mar gets around 53 mm of rain and snow over 7 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 23% and peaks near 26% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
126
225
325
425
525
625
725
825
925
1025
1125
1225
1325
1425
1525
1625
1724
1824
1924
2023
2122
2222
2321
2420
2520
2619
2719
2819
2918
3018
3118

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 (%)Comfortable (%)
1973
2982
3982
4991
5991
6991
7991
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in December

Winds average 13 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 13 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 12 min at the start of December to 9 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 8:04 AM to 8:23 AM, and sunset from 5:17 PM to 5:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.28:045:17
29.28:055:16
39.28:065:16
49.28:075:16
59.18:085:16
69.18:085:16
79.18:095:16
89.18:105:16
99.18:115:16
109.18:125:16
119.18:135:16
129.08:135:16
139.08:145:16
149.08:155:16
159.08:165:17
169.08:165:17
179.08:175:17
189.08:185:18
199.08:185:18
209.08:195:18
219.08:195:19
229.08:205:19
239.08:205:20
249.08:215:20
259.08:215:21
269.08:215:21
279.08:225:22
289.08:225:23
299.08:225:23
309.08:225:24
319.08:235:25

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.82 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.82 kWh/m² to a high of 6.75 kWh/m² in June across the year — December's 1.82 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.9Dim
31.9Dim
41.9Dim
51.9Dim
61.9Dim
71.9Dim
81.8Dim
91.8Dim
101.8Dim
111.8Dim
121.8Dim
131.8Dim
141.8Dim
151.8Dim
161.8Dim
171.8Dim
181.8Dim
191.8Dim
201.8Dim
211.8Dim
221.8Dim
231.8Dim
241.8Dim
251.8Dim
261.8Dim
271.8Dim
281.9Dim
291.9Dim
301.9Dim
311.9Dim
Planning a trip in December

Is December a good time to visit Vilassar de Mar?

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

3.9
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Vilassar de Mar.

What to pack for Vilassar de Mar in December

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

In December, Vilassar de Mar sees daytime highs around 13°C and nights near 9°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Vilassar de Mar in December

The nearest coast averages about 15°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in August at about 25°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 11 to Oct 23 — about 4.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May17Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov17Cool
Dec15Bracing

UV index in Vilassar de Mar 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 Vilassar de Mar peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 14UV 9Dec 20UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct3Moderate
Nov2Moderate
Dec1Low
Location & terrain

Where is Vilassar de Mar?

Vilassar de Mar sits at 41.5°N, 2.4°E, 19 m above sea level, in Spain. The nearest listed city is Premià de Mar, 3.0 km away.

Topography around Vilassar de Mar

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

Within 3 km, the terrain around Vilassar de Mar has significant variations in elevation — a maximum elevation change of 312 m around an average of 39 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 654 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,677 m.

The land around Vilassar de Mar is covered by water (44%) and artificial surfaces (28%) within 3 km, water (51%) and trees (26%) within 16 km, and trees (46%) and water (33%) within 80 km.

3 km
312 m
16 km
654 m
80 km
1,677 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Premià de Mar 3.0 km · Mataró 6.0 km · El Masnou 7.0 km · Montornès del Vallès 11 km · Badalona 14 km · Granollers 14 km · Cardedeu 15 km · Parets del Vallès 15 km

Spain travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$38,627
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 540
Religion
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Vilassar de Mar (41.5051°, 2.3923°, elevation 19 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).