Mazara del Vallo weather in December

In December, Mazara del Vallo sees average daytime highs of 16°C and overnight lows near 12°C, with 71 mm of rain across 10.8 wet days and about 9.4 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 15°C by the end. The sky is clear or mostly clear about 36% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of December to 9 h 24 min by month's end. Set against the rest of the year, December is Mazara del Vallo's 12th-clearest and 1st-windiest month. For the whole year in context, see Mazara del Vallo's year-round climate.

Daytime high
16°
9th warmest
Overnight low
12°
4th coldest
Rainfall
71 mm
10.8 wet days
Daylight
9 h 24 min
7:23 AM – 4:48 PM
Cloud cover
52%
12th clearest
Wind
19 km/h
1st windiest
Solar energy
2.14 kWh/m²
Travel score
4.9
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 17°C in the first days to 15°C by the end.

A typical December day in Mazara del Vallo reaches about 16°C in the afternoon and slips back to 12°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 18°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)
11713
21713
31713
41713
51613
61613
71613
81613
91613
101612
111612
121612
131612
141612
151612
161612
171512
181512
191512
201512
211512
221512
231512
241511
251511
261511
271511
281511
291511
301511
311511

Mazara del Vallo 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
Jan14° / 10°649.99.74.3
Feb14° / 10°619.210.54.2
Mar16° / 11°518.211.75.2
Apr18° / 13°417.112.96.4
May21° / 16°194147.9
Jun25° / 20°51.314.68.9
Jul28° / 23°20.414.38.4
Aug29° / 23°61.513.57.5
Sep26° / 21°42612.37.7
Oct23° / 18°748.4117.4
Nov19° / 15°7710.3106.2
Dec16° / 12°7110.89.44.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 25% of December, with mostly cloudy or overcast conditions the remaining 39%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16238
26238
36139
46238
56238
66238
76139
86238
96238
106238
116238
126238
136238
146139
156040
166040
176040
186040
196040
206040
216040
226040
236040
246040
256040
266040
276040
286040
296139
306139
316139

Chance of precipitation in December

Any precipitation

Mazara del Vallo gets around 71 mm of rain over 10.8 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 34% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
337
437
536
636
736
835
935
1035
1135
1234
1334
1434
1533
1633
1733
1833
1933
2033
2133
2233
2334
2434
2534
2633
2733
2833
2932
3032
3132

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
177203
280182
381172
482162
585141
686131
787121
888111
988111
1089101
1190100
129190
139190
149280
159280
169280
179370
189370
199370
209370
219370
229370
239370
249460
259460
269460
279460
289460
299460
309550
319550

Wind in December

Winds average 19 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 19 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2020light breeze
2120light breeze
2220light breeze
2320light breeze
2420light breeze
2520light breeze
2620light breeze
2720light breeze
2820light breeze
2920light breeze
3019light breeze
3119light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 36 min at the start of December to 9 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:12 AM to 7:30 AM, and sunset from 4:47 PM to 4:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:124:47
29.67:134:47
39.67:144:47
49.57:144:47
59.57:154:47
69.57:164:47
79.57:174:47
89.57:184:47
99.57:194:47
109.57:194:47
119.47:204:47
129.47:214:47
139.47:224:47
149.47:224:48
159.47:234:48
169.47:234:48
179.47:244:48
189.47:254:49
199.47:254:49
209.47:264:50
219.47:264:50
229.47:274:50
239.47:274:51
249.47:284:51
259.47:284:52
269.47:284:53
279.47:294:53
289.47:294:54
299.47:294:54
309.47:304:55
319.47:304:56

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.14 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.14 kWh/m² to a high of 7.61 kWh/m² in June across the year — December's 2.14 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.1Moderate
112.1Moderate
122.1Moderate
132.1Moderate
142.1Moderate
152.1Moderate
162.1Moderate
172.1Moderate
182.1Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.1Moderate
272.2Moderate
282.2Moderate
292.2Moderate
302.2Moderate
312.2Moderate
Planning a trip in December

Is December a good time to visit Mazara del Vallo?

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

4.9
Sightseeing
10th-best month of the year
0.4
Beach & pool
9th-best month of the year

December is a reasonable time to visit Mazara del Vallo for sightseeing.

What to pack for Mazara del Vallo in December

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

In December, Mazara del Vallo sees daytime highs around 16°C and nights near 12°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Mazara del Vallo in December

The nearest coast averages about 16°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 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 9 to Nov 5 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep24Refreshing
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Mazara del Vallo in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mazara del Vallo peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateVery highHighModerateJul 17UV 10Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar6High
Apr3Moderate
May5High
Jun8Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Mazara del Vallo?

Mazara del Vallo sits at 37.7°N, 12.6°E, 8 m above sea level, in Italy. The nearest listed city is Castelvetrano, 18 km away.

Topography around Mazara del Vallo

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

Within 3 km, the terrain around Mazara del Vallo has only modest variations in elevation — a maximum elevation change of 64 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 227 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,576 m.

The land around Mazara del Vallo is covered by water (38%), artificial surfaces (28%) and grassland (23%) within 3 km, water (43%) and grassland (33%) within 16 km, and water (62%) and grassland (21%) within 80 km.

3 km
64 m
16 km
227 m
80 km
1,576 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Castelvetrano 18 km · Marsala 21 km · Trapani 41 km · Casa Santa 41 km · Sciacca 47 km · Alcamo 49 km · Ribera 62 km · Partinico 64 km

Italy travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F / L
230 V · 50 Hz
Prices
≈ 69% of US
price level, 2025
GDP per capita
$43,309
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
5.3
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 513
Religion
Christian 81%unaffiliated 13%Muslim 5%other 1%

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 Mazara del Vallo (37.6553°, 12.5899°, elevation 8 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).