Gorizia weather in December

In December, Gorizia sees average daytime highs of 7°C and overnight lows near 1°C, with 129 mm of precipitation across 9.5 wet days and about 8.5 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 8°C in the first days to 6°C by the end. The sky is clear or mostly clear about 34% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 42 min at the start of December to 8 h 30 min by month's end. Set against the rest of the year, December is Gorizia's 8th-clearest and 1st-windiest month. For the whole year in context, see Gorizia's year-round climate.

Daytime high
11th warmest
Overnight low
3rd coldest
Precipitation
129 mm
9.5 wet days
Daylight
8 h 30 min
7:47 AM – 4:16 PM
Cloud cover
58%
8th clearest
Wind
8 km/h
1st windiest
Solar energy
1.14 kWh/m²
Travel score
1.0
out of 10
Air quality
Moderate
PM2.5 12.4 µg/m³ · 2019

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 8°C in the first days to 6°C by the end.

A typical December day in Gorizia reaches about 7°C in the afternoon and slips back to 1°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 11°C. Set against its neighbours, December runs about 4°C cooler than November and on par with January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
193
293
383
483
582
682
782
882
982
1082
1182
1282
1371
1471
1571
1671
1771
1871
1971
2071
2171
2271
2371
2471
2571
2671
2771
2861
2961
3061
3161

How December really feels in Gorizia

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 27 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
27
wind chill below the day's low

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

Gorizia weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 918.628.90.7
Feb / 978.22.2101.5
Mar12° / 11010.11.211.63.3
Apr16° / 12612.60.413.34.8
May21° / 12°13513.3014.76.0
Jun25° / 16°11412.8015.56.5
Jul27° / 18°8510.7015.26.6
Aug27° / 18°999.80146.7
Sep22° / 14°16311.5012.36.5
Oct17° / 10°20111.90.110.75.1
Nov11° / 20212.30.89.32.7
Dec / 1299.51.88.51.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34654
44654
54654
64852
74753
84753
94753
104852
114753
124753
134753
144753
154654
164654
174654
184555
194456
204456
214456
224555
234555
244555
254555
264654
274654
284753
294753
304753
314555

Chance of precipitation in December

Any precipitationSnow

Gorizia gets around 129 mm of rain and snow over 9.5 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 31% and peaks near 34% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1347
2347
3337
4337
5326
6326
7316
8316
9316
10305
11305
12305
13295
14295
15295
16295
17295
18305
19305
20305
21305
22305
23316
24316
25316
26316
27317
28317
29317
30317
31317

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 8 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 42 min at the start of December to 8 h 30 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 7:34 AM to 7:54 AM, and sunset from 4:17 PM to 4:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.77:344:17
28.77:354:17
38.77:364:16
48.77:374:16
58.67:384:16
68.67:394:16
78.67:404:15
88.67:414:15
98.67:424:15
108.57:434:15
118.57:444:15
128.57:444:15
138.57:454:15
148.57:464:15
158.57:474:16
168.57:474:16
178.57:484:16
188.57:494:16
198.57:494:17
208.57:504:17
218.57:504:18
228.57:514:18
238.57:514:19
248.57:524:19
258.57:524:20
268.57:534:20
278.57:534:21
288.57:534:22
298.57:534:22
308.57:534:23
318.57:544:24

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.14 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.14 kWh/m² to a high of 6.2 kWh/m² in July across the year — December's 1.14 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.2Dim
21.2Dim
31.2Dim
41.2Dim
51.2Dim
61.2Dim
71.2Dim
81.2Dim
91.2Dim
101.2Dim
111.2Dim
121.1Dim
131.1Dim
141.1Dim
151.1Dim
161.1Dim
171.1Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.1Dim
241.1Dim
251.1Dim
261.1Dim
271.1Dim
281.1Dim
291.1Dim
301.1Dim
311.1Dim
Planning a trip in December

Is December a good time to visit Gorizia?

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

1.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Gorizia.

What to pack for Gorizia in December

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

In December, Gorizia sees daytime highs around 7°C and nights near 1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Gorizia in December

The nearest coast averages about 13°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 35 km away) is warmest in August at about 25°C and coldest in February near 10°C.

It's comfortable for a long swim from May 31 to Oct 9 — about 4.3 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar10Bracing
Apr13Bracing
May18Cool
Jun23Refreshing
Jul25Warm
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Gorizia 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 Gorizia peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Gorizia in December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.

Air quality in Gorizia is worst in January — around 16 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (September, 9 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Gorizia's WHO annual average of 12.4 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodModerateJan 1816 µg/m³Sep 149 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb14Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun12Moderate
Jul12Moderate
Aug10Good
Sep9Good
Oct11Good
Nov11Good
Dec13Moderate
Location & terrain

Where is Gorizia?

Gorizia sits at 45.9°N, 13.6°E, 84 m above sea level, in Italy. The nearest listed city is Nova Gorica, 3.0 km away.

Topography around Gorizia

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

Within 3 km, the terrain around Gorizia has only modest variations in elevation — a maximum elevation change of 201 m around an average of 92 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,405 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,763 m.

The land around Gorizia is covered by trees (52%) and artificial surfaces (29%) within 3 km, trees (68%) and grassland (20%) within 16 km, and trees (55%) within 80 km.

3 km
201 m
16 km
1,405 m
80 km
2,763 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Nova Gorica 3.0 km · Monfalcone 17 km · Udine 33 km · Trieste 35 km · Divača 39 km · Koper 44 km · Bohinj 45 km · Piran 46 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 Gorizia (45.9409°, 13.6217°, elevation 84 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).