Colle di Val d'Elsa weather in December

In December, Colle di Val d'Elsa sees average daytime highs of 10°C and overnight lows near 3°C, with 85 mm of precipitation across 10.6 wet days and about 8.8 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 11°C in the first days to 9°C by the end. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of December to 8 h 48 min by month's end. Set against the rest of the year, December is Colle di Val d'Elsa's 10th-clearest and 5th-windiest month. For the whole year in context, see Colle di Val d'Elsa's year-round climate.

Daytime high
10°
11th warmest
Overnight low
3rd coldest
Precipitation
85 mm
10.6 wet days
Daylight
8 h 48 min
7:48 AM – 4:35 PM
Cloud cover
59%
10th clearest
Wind
8 km/h
5th windiest
Solar energy
1.37 kWh/m²
Travel score
2.1
out of 10

Colle di Val d'Elsa is chief town of the homonym municipality.

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 11°C in the first days to 9°C by the end.

A typical December day in Colle di Val d'Elsa reaches about 10°C in the afternoon and slips back to 3°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 13°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)
1114
2114
3114
4114
5114
6103
7103
8103
9103
10103
11103
12103
13103
14103
15103
1692
1792
1892
1992
2092
2192
2292
2392
2492
2592
2692
2792
2892
2992
3092
3192

How December really feels in Colle di Val d'Elsa

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 12 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
12
wind chill below the day's low

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

Colle di Val d'Elsa weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 608.70.99.11.8
Feb10° / 688.81.110.22.5
Mar14° / 689.30.411.64.2
Apr17° / 7911.4013.25.4
May22° / 11°729.9014.56.7
Jun26° / 15°497.3015.27.4
Jul29° / 18°324.4014.96.7
Aug29° / 18°405.6013.86.5
Sep25° / 14°948.9012.37.1
Oct19° / 10°11211010.86.1
Nov14° / 12312.20.19.53.7
Dec10° / 8510.60.48.82.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 13% of December, with mostly cloudy or overcast conditions the remaining 55%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24258
34258
44357
54456
64555
74456
84555
94555
104654
114654
124654
134654
144753
154753
164753
174753
184753
194753
204753
214753
224753
234753
244654
254654
264654
274555
284555
294456
304456
314456

Chance of precipitation in December

Any precipitationSnow

Colle di Val d'Elsa gets around 85 mm of rain and snow over 10.6 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 35% and peaks near 39% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1390
2390
3390
4380
5380
6371
7371
8361
9361
10351
11351
12342
13342
14332
15332
16332
17332
18332
19332
20332
21332
22332
23332
24332
25332
26332
27332
28332
29332
30332
31322

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.

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
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 hours at the start of December to 8 h 48 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 7:35 AM to 7:54 AM, and sunset from 4:36 PM to 4:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:354:36
29.07:364:35
39.07:374:35
49.07:384:35
58.97:394:35
68.97:404:35
78.97:414:35
88.97:424:34
98.97:434:34
108.97:434:34
118.87:444:35
128.87:454:35
138.87:464:35
148.87:474:35
158.87:474:35
168.87:484:35
178.87:494:36
188.87:494:36
198.87:504:36
208.87:504:37
218.87:514:37
228.87:514:38
238.87:524:38
248.87:524:39
258.87:534:39
268.87:534:40
278.87:534:40
288.87:544:41
298.87:544:42
308.87:544:42
318.87:544:43

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.37 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.37 kWh/m² to a high of 6.86 kWh/m² in July across the year — December's 1.37 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.5Dim
21.4Dim
31.4Dim
41.4Dim
51.4Dim
61.4Dim
71.4Dim
81.4Dim
91.4Dim
101.4Dim
111.4Dim
121.4Dim
131.4Dim
141.4Dim
151.4Dim
161.4Dim
171.4Dim
181.4Dim
191.4Dim
201.4Dim
211.4Dim
221.4Dim
231.4Dim
241.4Dim
251.4Dim
261.4Dim
271.4Dim
281.4Dim
291.4Dim
301.4Dim
311.4Dim
Planning a trip in December

Is December a good time to visit Colle di Val d'Elsa?

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

2.1
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 Colle di Val d'Elsa.

What to pack for Colle di Val d'Elsa in December

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

In December, Colle di Val d'Elsa sees daytime highs around 10°C and nights near 3°C. Pack a warm layer. Worth having: rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Colle di Val d'Elsa 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 at the nearest coast (about 61 km away) is warmest in August at about 25°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 3 to Oct 22 — about 4.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct21Refreshing
Nov18Cool
Dec16Cool

UV index in Colle di Val d'Elsa 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 Colle di Val d'Elsa peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. 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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 9Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr6High
May6High
Jun8Very high
Jul9Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Colle di Val d'Elsa 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 Colle di Val d'Elsa is worst in March — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 2016 µg/m³Nov 1712 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar17Moderate
Apr16Moderate
May15Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep12Moderate
Oct13Moderate
Nov12Good
Dec12Moderate
Location & terrain

Where is Colle di Val d'Elsa?

Colle di Val d'Elsa sits at 43.4°N, 11.1°E, 141 m above sea level, in Italy. The nearest listed city is Poggibonsi, 6.0 km away.

Topography around Colle di Val d'Elsa

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Colle di Val d'Elsa.

Within 3 km, the terrain around Colle di Val d'Elsa has only modest variations in elevation — a maximum elevation change of 149 m around an average of 197 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 606 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,862 m.

The land around Colle di Val d'Elsa is covered by trees (46%) and grassland (23%) within 3 km, trees (65%) within 16 km, and trees (60%) within 80 km.

3 km
149 m
16 km
606 m
80 km
1,862 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Poggibonsi 6.0 km · Siena 20 km · Empoli 36 km · San Giovanni Valdarno 36 km · San Miniato 36 km · Scandicci 37 km · Montevarchi 38 km · San Miniato Basso 38 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 Colle di Val d'Elsa (43.4211°, 11.1274°, elevation 141 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).