Casal Bertone weather in January

In January, Casal Bertone sees average daytime highs of 12°C and overnight lows near 4°C, with 63 mm of precipitation across 8.6 wet days and about 9.3 hours of daylight. It is the 12th-warmest and 8th-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 Casal Bertone's 9th-clearest and 6th-windiest month. For the whole year in context, see Casal Bertone's year-round climate.

Daytime high
12°
12th warmest
Overnight low
1st coldest
Precipitation
63 mm
8.6 wet days
Daylight
9 h 18 min
7:41 AM – 4:57 PM
Cloud cover
51%
9th clearest
Wind
8 km/h
6th windiest
Solar energy
1.89 kWh/m²
Travel score
3.2
out of 10

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 Casal Bertone reaches about 12°C in the afternoon and slips back to 4°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 14°C. Set against its neighbours, January runs about 1°C cooler than December and about 1°C cooler than February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1124
2124
3124
4124
5124
6124
7124
8124
9124
10124
11124
12124
13124
14124
15124
16124
17124
18123
19123
20123
21123
22123
23123
24123
25123
26123
27123
28123
29123
30123
31123

How January really feels in Casal Bertone

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

January sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Casal Bertone weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 638.69.33.2
Feb13° / 719.210.33.6
Mar16° / 749.111.75.1
Apr19° / 7710.613.16.0
May23° / 13°588.414.37.3
Jun28° / 17°345.5157.1
Jul31° / 19°23414.75.8
Aug31° / 20°224.313.75.5
Sep26° / 16°848.812.37.0
Oct22° / 13°11610.410.96.7
Nov16° / 12812.29.64.9
Dec12° / 9410.693.4

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 12% of January, with mostly cloudy or overcast conditions the remaining 46%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25545
35545
45545
55545
65545
75545
85545
95545
105644
115644
125545
135446
145446
155446
165446
175446
185347
195347
205347
215248
225248
235248
245248
255248
265248
275248
285347
295347
305446
315446

Chance of precipitation in January

Any precipitation

Casal Bertone gets around 63 mm of rain and snow over 8.6 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 28% and peaks near 32% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
329
428
527
626
726
825
925
1025
1125
1225
1325
1426
1526
1627
1727
1828
1928
2029
2130
2230
2330
2431
2531
2631
2731
2832
2932
3032
3132

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 (%)
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 January

Winds average 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 7:43 AM to 7:31 AM, and sunset from 4:43 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.07:434:43
29.07:434:44
39.07:434:45
49.07:434:45
59.17:434:46
69.17:434:47
79.17:434:48
89.17:434:49
99.17:434:50
109.17:434:51
119.27:434:52
129.27:424:53
139.27:424:54
149.27:424:55
159.27:414:56
169.37:414:57
179.37:414:58
189.37:404:59
199.37:405:01
209.47:395:02
219.47:395:03
229.47:385:04
239.57:375:05
249.57:375:06
259.57:365:08
269.67:355:09
279.67:355:10
289.67:345:11
299.77:335:13
309.77:325:14
319.77:315:15

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.89 kWh/m².

For context, solar energy here swings from a low near 1.63 kWh/m² to a high of 7.08 kWh/m² in July across the year — January's 1.89 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.7Dim
21.7Dim
31.7Dim
41.7Dim
51.7Dim
61.7Dim
71.8Dim
81.8Dim
91.8Dim
101.8Dim
111.8Dim
121.8Dim
131.8Dim
141.9Dim
151.9Dim
161.9Dim
171.9Dim
181.9Dim
191.9Dim
202.0Dim
212.0Dim
222.0Moderate
232.0Moderate
242.0Moderate
252.1Moderate
262.1Moderate
272.1Moderate
282.2Moderate
292.2Moderate
302.2Moderate
312.3Moderate
Planning a trip in January

Hazard calendar for Casal Bertone

In seasonPeak

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

Casal Bertone's rainy season runs September–April, 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 Casal Bertone?

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

3.2
Sightseeing
12th-best month of the year
0.0
Beach & pool
12th-best month of the year

January is a weaker month for outdoor sightseeing in Casal Bertone.

What to pack for Casal Bertone in January

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

In January, Casal Bertone sees daytime highs around 12°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 9 days see rain.

a warm layerrain gear

Sea temperature near Casal Bertone 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 33 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from May 31 to Nov 1 — about 5.1 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec16Cool

UV index in Casal Bertone 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 Casal Bertone peaks around July 15 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 15UV 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Casal Bertone 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 Casal Bertone is worst in April — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateModerateApr 1117 µg/m³Sep 1812 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar17Moderate
Apr17Moderate
May15Moderate
Jun14Moderate
Jul12Good
Aug13Moderate
Sep11Good
Oct12Moderate
Nov12Good
Dec13Moderate
Location & terrain

Where is Casal Bertone?

Casal Bertone sits at 41.9°N, 12.5°E, 37 m above sea level, in Italy. The nearest listed city is Esquilino, 2.0 km away.

Topography around Casal Bertone

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

Within 3 km, the terrain around Casal Bertone has only modest variations in elevation — a maximum elevation change of 72 m around an average of 42 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 371 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,441 m.

The land around Casal Bertone is covered by artificial surfaces (75%) and trees (20%) within 3 km, artificial surfaces (32%), trees (30%) and cropland (21%) within 16 km, and trees (46%) and water (24%) within 80 km.

3 km
72 m
16 km
371 m
80 km
2,441 m
treesshrubsgrasslandcroplandartificial surfaceswater
January weather nearby: Esquilino 2.0 km · Rome 2.0 km · Casal de' Pazzi 4.0 km · Vatican City 7.0 km · Giardinetti-Tor Vergata 9.0 km · Ciampino 12 km · Tor Lupara 13 km · Spinaceto 15 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 Casal Bertone (41.8982°, 12.5341°, elevation 37 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).