Civitavecchia weather in January

In January, Civitavecchia sees average daytime highs of 12°C and overnight lows near 10°C, with 75 mm of rain across 9.9 wet days and about 9.3 hours of daylight. It is the 11th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 12°C through the month. The sky is clear or mostly clear about 42% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 hours at the start of January to 9 h 42 min by month's end. Set against the rest of the year, January is Civitavecchia's 11th-clearest and 4th-windiest month. For the whole year in context, see Civitavecchia's year-round climate.

Daytime high
12°
11th warmest
Overnight low
10°
2nd coldest
Rainfall
75 mm
9.9 wet days
Daylight
9 h 12 min
7:45 AM – 5:00 PM
Cloud cover
50%
11th clearest
Wind
20 km/h
4th windiest
Solar energy
1.95 kWh/m²
Travel score
3.4
out of 10
Air quality
Good
PM2.5 8.7 µg/m³ · 2019

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 12°C through the month.

A typical January day in Civitavecchia reaches about 12°C in the afternoon and slips back to 10°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 14°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

10°13°15°151015202531
Avg high (°C)Avg low (°C)
11310
21210
31210
41210
51210
61210
71210
81210
91210
101210
111210
121210
131210
141210
151210
161210
171210
181210
19129
20129
21129
22129
23129
24129
25129
26129
27129
28129
29129
30129
31129

Civitavecchia weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 10°759.99.33.4
Feb12° / 719.110.33.4
Mar13° / 11°627.611.74.2
Apr15° / 13°567.913.15.1
May19° / 16°335.714.46.9
Jun22° / 20°213.2158.4
Jul25° / 23°121.414.89.2
Aug25° / 23°192.313.78.8
Sep23° / 21°777.312.37.6
Oct20° / 17°11710.310.86.5
Nov16° / 14°15312.79.64.9
Dec13° / 11°10112.193.8

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 16% of January, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25941
35941
45842
55842
65941
75941
85941
95941
105941
115842
125842
135842
145842
155842
165743
175842
185842
195842
205842
215743
225743
235743
245743
255743
265743
275743
285743
295743
305842
315941

Chance of precipitation in January

Any precipitation

Civitavecchia gets around 75 mm of rain over 9.9 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
234
333
433
532
631
730
830
929
1029
1129
1229
1329
1429
1530
1630
1731
1831
1932
2032
2133
2233
2334
2435
2535
2635
2736
2836
2936
3036
3136

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January 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
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in January

Winds average 20 km/h in January.

Across January, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
121breezy
221breezy
321breezy
421breezy
520breezy
620breezy
720breezy
820light breeze
920light breeze
1020light breeze
1120light breeze
1220light breeze
1320light breeze
1420light breeze
1520light breeze
1620light breeze
1720light breeze
1820light breeze
1920breezy
2020breezy
2120breezy
2220breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 hours at the start of January to 9 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over January. Sunrise moves from 7:47 AM to 7:35 AM, and sunset from 4:45 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:474:45
29.07:474:46
39.07:474:47
49.07:474:48
59.07:474:49
69.07:474:50
79.17:474:50
89.17:474:51
99.17:474:52
109.17:464:53
119.17:464:54
129.27:464:55
139.27:464:56
149.27:454:57
159.27:454:59
169.27:455:00
179.37:445:01
189.37:445:02
199.37:435:03
209.47:435:04
219.47:425:05
229.47:425:06
239.47:415:08
249.57:405:09
259.57:405:10
269.57:395:11
279.67:385:12
289.67:375:14
299.67:375:15
309.77:365:16
319.77:355:17

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.95 kWh/m².

For context, solar energy here swings from a low near 1.69 kWh/m² to a high of 7.21 kWh/m² in July across the year — January's 1.95 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.8Dim
41.8Dim
51.8Dim
61.8Dim
71.8Dim
81.8Dim
91.8Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
151.9Dim
161.9Dim
171.9Dim
182.0Dim
192.0Dim
202.0Moderate
212.0Moderate
222.1Moderate
232.1Moderate
242.1Moderate
252.1Moderate
262.2Moderate
272.2Moderate
282.2Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in January

Hazard calendar for Civitavecchia

In seasonPeak

In January, Civitavecchia sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Civitavecchia's rainy season runs September–February, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Civitavecchia?

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

3.4
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Civitavecchia.

What to pack for Civitavecchia in January

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

In January, Civitavecchia sees daytime highs around 12°C and nights near 10°C. Worth packing: a warm layer, rain gear and a windbreaker. About 10 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Civitavecchia in January

The nearest coast averages about 15°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 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 2 to Oct 29 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Civitavecchia in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Civitavecchia peaks around July 14 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highHighModerateLowJul 14UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun8Very high
Jul9Very high
Aug8Very high
Sep5High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Civitavecchia?

Civitavecchia sits at 42.1°N, 11.8°E, 10 m above sea level, in Italy. The nearest listed city is Cerveteri, 27 km away.

Topography around Civitavecchia

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

Within 3 km, the terrain around Civitavecchia has only modest variations in elevation — a maximum elevation change of 178 m around an average of 37 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 636 m; within 80 km, large variations in elevation — a maximum elevation change of 1,119 m.

The land around Civitavecchia is covered by water (38%) and artificial surfaces (25%) within 3 km, water (54%) within 16 km, and water (37%) and trees (32%) within 80 km.

3 km
178 m
16 km
636 m
80 km
1,119 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Cerveteri 27 km · Ladispoli 28 km · Viterbo 44 km · Fiumicino 51 km · Lido di Ostia 56 km · Acilia-Castel Fusano-Ostia Antica 57 km · Vatican City 58 km · Casal Palocco 60 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 Civitavecchia (42.0932°, 11.7967°, 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).