Monfalcone weather in December

In December, Monfalcone sees average daytime highs of 9°C and overnight lows near 6°C, with 127 mm of precipitation across 10.3 wet days and about 8.5 hours of daylight. It is the 10th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 8°C by the end. The sky is clear or mostly clear about 35% 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 Monfalcone's 10th-clearest and 1st-windiest month. For the whole year in context, see Monfalcone's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
127 mm
10.3 wet days
Daylight
8 h 30 min
7:47 AM – 4:17 PM
Cloud cover
58%
10th clearest
Wind
13 km/h
1st windiest
Solar energy
1.16 kWh/m²
Travel score
1.8
out of 10

Monfalcone is chief town of the homonym municipality.

Air quality
Moderate
PM2.5 12.3 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 10°C in the first days to 8°C by the end.

A typical December day in Monfalcone reaches about 9°C in the afternoon and slips back to 6°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 12°C. Set against its neighbours, December runs about 4°C cooler than November and about 1°C warmer than January.

10°15°151015202531
Avg high (°C)Avg low (°C)
1108
2107
3107
4107
5107
6107
7107
8107
9107
10107
1196
1296
1396
1496
1596
1696
1796
1896
1996
2096
2196
2296
2385
2485
2585
2685
2785
2885
2985
3085
3185

Monfalcone weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 919.60.68.91.3
Feb / 918.4110.11.6
Mar11° / 9390.411.63.0
Apr15° / 11°9710.50.113.34.4
May19° / 15°10510.6014.76.2
Jun24° / 19°879.4015.57.2
Jul26° / 21°637.2015.27.5
Aug26° / 22°907.4013.97.4
Sep22° / 18°17010.4012.36.8
Oct18° / 14°19512.6010.75.4
Nov13° / 10°20113.40.39.33.3
Dec / 12710.30.88.51.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24357
34357
44456
54456
64456
74555
84555
94555
104654
114753
124753
134753
144753
154753
164753
174555
184555
194555
204555
214555
224555
234654
244753
254753
264753
274753
284852
294753
304753
314753

Chance of precipitation in December

Any precipitationSnow

Monfalcone gets around 127 mm of rain and snow over 10.3 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 34% and peaks near 37% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1372
2372
3362
4362
5352
6352
7352
8342
9342
10342
11342
12342
13342
14342
15332
16332
17332
18333
19333
20333
21333
22333
23333
24333
25333
26333
27333
28333
29333
30333
31333

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 (%)
1991
21000
31000
41000
51000
61000
71000
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 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light 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
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

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 7:33 AM to 7:53 AM, and sunset from 4:18 PM to 4:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.77:334:18
28.77:354:17
38.77:364:17
48.77:374:17
58.67:384:17
68.67:394:16
78.67:404:16
88.67:414:16
98.67:424:16
108.67:434:16
118.57:434:16
128.57:444:16
138.57:454:16
148.57:464:16
158.57:474:17
168.57:474:17
178.57:484:17
188.57:494:17
198.57:494:18
208.57:504:18
218.57:504:18
228.57:514:19
238.57:514:19
248.57:524:20
258.57:524:20
268.57:524:21
278.57:534:22
288.57:534:22
298.57:534:23
308.57:534:24
318.57:534:25

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.16 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.16 kWh/m² to a high of 6.34 kWh/m² in July across the year — December's 1.16 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.3Dim
21.2Dim
31.2Dim
41.2Dim
51.2Dim
61.2Dim
71.2Dim
81.2Dim
91.2Dim
101.2Dim
111.2Dim
121.2Dim
131.2Dim
141.2Dim
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
291.2Dim
301.2Dim
311.2Dim
Planning a trip in December

Is December a good time to visit Monfalcone?

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

1.8
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 Monfalcone.

What to pack for Monfalcone in December

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

In December, Monfalcone sees daytime highs around 9°C and nights near 6°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Monfalcone 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 21 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 Monfalcone 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 Monfalcone 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 Monfalcone 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 Monfalcone 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 Monfalcone's WHO annual average of 12.3 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJan 1816 µg/m³Sep 149 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb14Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun12Good
Jul12Good
Aug10Good
Sep9Good
Oct10Good
Nov10Good
Dec13Moderate
Location & terrain

Where is Monfalcone?

Monfalcone sits at 45.8°N, 13.5°E, 7 m above sea level, in Italy. The nearest listed city is Gorizia, 17 km away.

Topography around Monfalcone

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

Within 3 km, the terrain around Monfalcone has only modest variations in elevation — a maximum elevation change of 140 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 642 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,763 m.

The land around Monfalcone is covered by trees (40%) and artificial surfaces (30%) within 3 km, trees (34%), water (23%) and cropland (21%) within 16 km, and trees (50%) within 80 km.

3 km
140 m
16 km
642 m
80 km
2,763 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
December weather nearby: Gorizia 17 km · Nova Gorica 19 km · Trieste 26 km · Piran 31 km · Koper 32 km · Divača 36 km · Udine 37 km · Postojna 53 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 Monfalcone (45.8046°, 13.5329°, elevation 7 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).