Cagliari weather in January

In January, Cagliari sees average daytime highs of 13°C and overnight lows near 7°C, with 37 mm of rain across 6.7 wet days and about 9.6 hours of daylight. It is the 12th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 13°C through the month. The sky is clear or mostly clear about 35% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 18 min at the start of January to 9 h 54 min by month's end. Set against the rest of the year, January is Cagliari's 10th-clearest and 5th-windiest month. For the whole year in context, see Cagliari's year-round climate.

Daytime high
13°
12th warmest
Overnight low
2nd coldest
Rainfall
37 mm
6.7 wet days
Daylight
9 h 30 min
7:47 AM – 5:19 PM
Cloud cover
54%
10th clearest
Wind
13 km/h
5th windiest
Solar energy
2.31 kWh/m²
Travel score
4.1
out of 10
Air quality
Elevated
PM2.5 19.2 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 13°C through the month.

A typical January day in Cagliari reaches about 13°C in the afternoon and slips back to 7°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 16°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1148
2148
3148
4148
5147
6147
7147
8147
9147
10147
11137
12137
13137
14137
15137
16137
17137
18137
19137
20137
21137
22137
23137
24137
25137
26137
27137
28137
29137
30137
31137

Cagliari weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 376.79.64.1
Feb14° / 397.410.54.2
Mar16° / 467.511.75.4
Apr18° / 11°488.4136.3
May22° / 14°335.614.17.7
Jun27° / 18°102.114.78.2
Jul30° / 21°20.514.57.0
Aug30° / 21°81.813.56.5
Sep26° / 19°314.912.37.7
Oct23° / 15°436.1117.6
Nov18° / 12°629.19.85.9
Dec15° / 548.69.34.5

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 22% of January, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35941
46040
56040
66040
76040
86040
96040
105941
115941
125842
135842
145842
155743
165644
175644
185644
195545
205545
215446
225446
235446
245446
255446
265446
275446
285446
295545
305644
315743

Chance of precipitation in January

Any precipitation

Cagliari gets around 37 mm of rain over 6.7 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 23% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
121
220
320
419
519
619
719
819
919
1019
1120
1220
1320
1421
1521
1622
1722
1823
1923
2024
2124
2225
2325
2425
2526
2626
2727
2827
2927
3028
3128

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
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 January

Winds average 13 km/h in January.

Across January, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 18 min at the start of January to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:48 AM to 7:39 AM, and sunset from 5:05 PM to 5:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.37:485:05
29.37:485:06
39.37:485:07
49.37:495:08
59.37:495:08
69.37:495:09
79.47:495:10
89.47:495:11
99.47:485:12
109.47:485:13
119.47:485:14
129.47:485:15
139.57:485:16
149.57:485:17
159.57:475:18
169.57:475:19
179.57:475:20
189.67:465:21
199.67:465:22
209.67:465:23
219.67:455:24
229.77:455:25
239.77:445:26
249.77:445:27
259.87:435:28
269.87:425:29
279.87:425:30
289.87:415:32
299.97:405:33
309.97:405:34
319.97:395:35

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.31 kWh/m².

For context, solar energy here swings from a low near 2 kWh/m² to a high of 7.54 kWh/m² in July across the year — January's 2.31 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.1Moderate
32.1Moderate
42.1Moderate
52.1Moderate
62.1Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.4Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.7Moderate
312.7Moderate
Planning a trip in January

Is January a good time to visit Cagliari?

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

4.1
Sightseeing
12th-best month of the year
0.0
Beach & pool
12th-best month of the year

January is a reasonable time to visit Cagliari for sightseeing.

What to pack for Cagliari in January

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

In January, Cagliari sees daytime highs around 13°C and nights near 7°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

Sea temperature near Cagliari 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 offshore is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 8 to Nov 2 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Cagliari in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cagliari peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowJul 16UV 9Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar5High
Apr6High
May7High
Jun7Very high
Jul10Very high
Aug7High
Sep6High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Cagliari in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Cagliari is worst in March — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 13 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Cagliari's WHO annual average of 19.2 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2223 µg/m³Dec 1514 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb20Moderate
Mar23Moderate
Apr23Moderate
May22Moderate
Jun21Moderate
Jul19Moderate
Aug19Moderate
Sep19Moderate
Oct19Moderate
Nov15Moderate
Dec13Moderate
Location & terrain

Where is Cagliari?

Cagliari sits at 39.2°N, 9.1°E, 6 m above sea level, in Italy. The nearest listed city is Monserrato, 4.0 km away.

Topography around Cagliari

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

Within 3 km, the terrain around Cagliari has only modest variations in elevation — a maximum elevation change of 117 m around an average of 19 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 667 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,454 m.

The land around Cagliari is covered by artificial surfaces (56%) and water (23%) within 3 km, water (39%) and grassland (26%) within 16 km, and water (46%) and trees (26%) within 80 km.

3 km
117 m
16 km
667 m
80 km
1,454 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Monserrato 4.0 km · Selargius 5.0 km · Sestu 8.0 km · Sinnai 11 km · Quartu Sant'Elena 11 km · Assemini 12 km · Iglesias 51 km · Carbonia 52 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 Cagliari (39.2305°, 9.1192°, elevation 6 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).