Imperia weather in December

In December, Imperia sees average daytime highs of 9°C and overnight lows near 4°C, with 89 mm of precipitation across 8.1 wet days and about 8.8 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 9°C through the month. The sky is clear or mostly clear about 41% 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 Imperia's 7th-clearest and 1st-windiest month. For the whole year in context, see Imperia's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
89 mm
8.1 wet days
Daylight
8 h 42 min
8:02 AM – 4:46 PM
Cloud cover
51%
7th clearest
Wind
11 km/h
1st windiest
Solar energy
1.49 kWh/m²
Travel score
2.1
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 9°C through the month.

A typical December day in Imperia reaches about 9°C in the afternoon and slips back to 4°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 5°C and 13°C. Set against its neighbours, December runs about 3°C cooler than November and about 1°C warmer than January.

10°15°151015202531
Avg high (°C)Avg low (°C)
1105
2105
3105
4105
5105
6105
7105
8105
9105
10105
11105
1295
1395
1494
1594
1694
1794
1894
1994
2094
2194
2294
2394
2494
2594
2694
2794
2894
2994
3094
3194

Imperia weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 737.23.29.11.7
Feb / 626.83.110.22.0
Mar12° / 7892.111.63.1
Apr14° / 10312.3113.23.9
May17° / 12°8312.4014.55.3
Jun21° / 16°7211.5015.26.4
Jul24° / 18°5510.4014.97.2
Aug24° / 18°5210.9013.87.1
Sep21° / 15°9010.5012.36.5
Oct17° / 12°1089.90.110.85.4
Nov12° / 144101.39.53.3
Dec / 898.12.78.82.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35743
45743
55743
65842
75743
85743
95743
105743
115743
125644
135644
145644
155446
165446
175446
185347
195347
205347
215347
225347
235347
245446
255446
265446
275545
285545
295545
305644
315644

Chance of precipitation in December

Any precipitationSnow

Imperia gets around 89 mm of rain and snow over 8.1 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 26% and peaks near 30% on the wettest days, and about 3 days bring snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1309
2299
3299
4289
5289
6289
7279
8279
9279
10279
11279
12269
13269
14269
15269
16269
17269
18269
19269
20269
21269
22269
23269
24268
25258
26258
27258
28258
29258
30259
31259

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

Across December, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
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 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 7:49 AM to 8:08 AM, and sunset from 4:46 PM to 4:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:494:46
28.97:504:46
38.97:514:46
48.97:524:46
58.97:534:46
68.97:544:45
78.87:554:45
88.87:564:45
98.87:574:45
108.87:574:45
118.87:584:45
128.87:594:45
138.88:004:45
148.88:014:46
158.78:014:46
168.78:024:46
178.78:034:46
188.78:034:47
198.78:044:47
208.78:044:47
218.78:054:48
228.78:054:48
238.78:064:49
248.78:064:49
258.78:074:50
268.78:074:50
278.78:074:51
288.78:084:52
298.78:084:52
308.88:084:53
318.88:084:54

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.49 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.49 kWh/m² to a high of 6.65 kWh/m² in July across the year — December's 1.49 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.6Dim
41.6Dim
51.6Dim
61.6Dim
71.6Dim
81.5Dim
91.5Dim
101.5Dim
111.5Dim
121.5Dim
131.5Dim
141.5Dim
151.5Dim
161.5Dim
171.5Dim
181.5Dim
191.5Dim
201.5Dim
211.5Dim
221.5Dim
231.5Dim
241.5Dim
251.5Dim
261.5Dim
271.5Dim
281.5Dim
291.5Dim
301.5Dim
311.5Dim
Planning a trip in December

Is December a good time to visit Imperia?

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

2.1
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 Imperia.

What to pack for Imperia in December

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

In December, Imperia sees daytime highs around 9°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 8 days see rain.

a warm layerrain gear

Sea temperature near Imperia in December

The nearest coast averages about 15°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 7 to Oct 12 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Bracing
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep22Refreshing
Oct20Cool
Nov17Cool
Dec15Cool

UV index in Imperia 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 Imperia peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr7Very high
May7High
Jun8Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Imperia 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 Imperia is worst in March — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2018 µg/m³Nov 1813 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar19Moderate
Apr18Moderate
May15Moderate
Jun15Moderate
Jul13Moderate
Aug14Moderate
Sep13Moderate
Oct14Moderate
Nov13Moderate
Dec14Moderate
Location & terrain

Where is Imperia?

Imperia sits at 43.9°N, 8.0°E, 10 m above sea level, in Italy. The nearest listed city is Sanremo, 22 km away.

Topography around Imperia

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

Within 3 km, the terrain around Imperia has significant variations in elevation — a maximum elevation change of 351 m around an average of 72 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,165 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,195 m.

The land around Imperia is covered by trees (40%) and water (38%) within 3 km, water (52%) and trees (39%) within 16 km, and trees (45%) and water (38%) within 80 km.

3 km
351 m
16 km
1,165 m
80 km
3,195 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Sanremo 22 km · Albenga 23 km · Ventimiglia 36 km · Menton 45 km · Monte Carlo 52 km · Monaco 52 km · Savona 58 km · Mondovì 59 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 Imperia (43.8892°, 8.0393°, elevation 10 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).