Genoa weather in December

In December, Genoa sees average daytime highs of 8°C and overnight lows near 3°C, with 119 mm of precipitation across 10.3 wet days and about 8.7 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 8°C through the month. The sky is clear or mostly clear about 38% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 54 min at the start of December to 8 h 42 min by month's end. Set against the rest of the year, December is Genoa's 8th-clearest and 3rd-windiest month. For the whole year in context, see Genoa's year-round climate.

Daytime high
11th warmest
Overnight low
3rd coldest
Precipitation
119 mm
10.3 wet days
Daylight
8 h 42 min
8:00 AM – 4:41 PM
Cloud cover
56%
8th clearest
Wind
10 km/h
3rd windiest
Solar energy
1.29 kWh/m²
Travel score
1.4
out of 10

Genoa 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

Day-to-day highs hold fairly steady near 8°C through the month.

A typical December day in Genoa reaches about 8°C in the afternoon and slips back to 3°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 11°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
194
294
394
494
594
694
794
894
984
1084
1183
1283
1383
1483
1583
1683
1783
1883
1983
2083
2183
2283
2383
2483
2583
2683
2783
2873
2973
3073
3173

How December really feels in Genoa

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 10 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
10
wind chill below the day's low

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

Genoa 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 / 9592.591.1
Feb / 728.12.510.11.6
Mar12° / 879.51.311.63.1
Apr14° / 10512.60.113.24.0
May18° / 12°10313.2014.65.4
Jun22° / 16°8211015.36.6
Jul24° / 18°5690157.5
Aug24° / 18°6710.6013.87.1
Sep21° / 15°12411012.36.4
Oct16° / 11°16512.6010.84.9
Nov11° / 19112.10.79.42.8
Dec / 11910.32.48.71.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24951
35050
44951
55050
65050
74951
84951
95050
105050
115050
124852
134852
144852
154852
164852
174654
184654
194654
204753
214753
224753
234753
244753
254852
264852
275050
285050
295149
305149
315149

Chance of precipitation in December

Any precipitationSnow

Genoa gets around 119 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 33% and peaks near 36% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1366
2367
3357
4357
5347
6347
7337
8337
9337
10327
11327
12327
13327
14327
15327
16327
17327
18337
19337
20337
21338
22338
23338
24338
25338
26328
27328
28328
29318
30318
31318

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 10 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 54 min at the start of December to 8 h 42 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 7:47 AM to 8:06 AM, and sunset from 4:41 PM to 4:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.97:474:41
28.97:484:41
38.97:494:41
48.87:504:40
58.87:514:40
68.87:524:40
78.87:534:40
88.87:544:40
98.77:554:40
108.77:564:40
118.77:564:40
128.77:574:40
138.77:584:40
148.77:594:40
158.78:004:40
168.78:004:41
178.78:014:41
188.78:024:41
198.78:024:41
208.78:034:42
218.78:034:42
228.68:044:43
238.78:044:43
248.78:054:44
258.78:054:44
268.78:054:45
278.78:064:45
288.78:064:46
298.78:064:47
308.78:064:48
318.78:064:48

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.29 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.29 kWh/m² to a high of 6.41 kWh/m² in July across the year — December's 1.29 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.4Dim
41.4Dim
51.4Dim
61.4Dim
71.4Dim
81.3Dim
91.3Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.3Dim
181.3Dim
191.3Dim
201.3Dim
211.3Dim
221.3Dim
231.3Dim
241.3Dim
251.3Dim
261.3Dim
271.3Dim
281.3Dim
291.3Dim
301.3Dim
311.3Dim
Planning a trip in December

Is December a good time to visit Genoa?

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

1.4
Sightseeing
11th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Genoa.

What to pack for Genoa in December

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

In December, Genoa sees daytime highs around 8°C and nights near 3°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Genoa 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 13°C.

It's comfortable for a long swim from Jun 3 to Oct 19 — about 4.6 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Bracing
May18Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct20Refreshing
Nov18Cool
Dec16Cool

UV index in Genoa 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 Genoa 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
Mar4Moderate
Apr7Very high
May6High
Jun8Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Genoa 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 Genoa is worst in March — around 16 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodMar 2016 µg/m³Dec 1011 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr15Moderate
May14Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep12Good
Oct13Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Genoa?

Genoa sits at 44.4°N, 8.9°E, 19 m above sea level, in Italy. The nearest listed city is Rapallo, 23 km away.

Topography around Genoa

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

Within 3 km, the terrain around Genoa has significant variations in elevation — a maximum elevation change of 375 m around an average of 52 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,028 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,776 m.

The land around Genoa is covered by artificial surfaces (45%), water (32%) and trees (23%) within 3 km, water (47%) and trees (42%) within 16 km, and trees (52%) and water (26%) within 80 km.

3 km
375 m
16 km
1,028 m
80 km
1,776 m
treesshrubsgrasslandcroplandartificial surfaceswater
December weather nearby: Rapallo 23 km · Portofino 24 km · Chiavari 32 km · Savona 39 km · Sestri Levante 39 km · Novi Ligure 42 km · Acqui Terme 48 km · Tortona 55 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 Genoa (44.4048°, 8.9444°, 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. 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).