Castel Volturno weather in January

In January, Castel Volturno sees average daytime highs of 12°C and overnight lows near 8°C, with 109 mm of rain across 11 wet days and about 9.4 hours of daylight. It is the 12th-warmest and 4th-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 39% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 06 min at the start of January to 9 h 48 min by month's end. Set against the rest of the year, January is Castel Volturno's 11th-clearest and 4th-windiest month. For the whole year in context, see Castel Volturno's year-round climate.

Daytime high
12°
12th warmest
Overnight low
2nd coldest
Rainfall
109 mm
11 wet days
Daylight
9 h 24 min
7:33 AM – 4:54 PM
Cloud cover
52%
11th clearest
Wind
12 km/h
4th windiest
Solar energy
1.98 kWh/m²
Travel score
3.3
out of 10

Castel Volturno is chief town of the homonym municipality.

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 Castel Volturno reaches about 12°C in the afternoon and slips back to 8°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 15°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

10°15°151015202531
Avg high (°C)Avg low (°C)
1129
2128
3128
4128
5128
6128
7128
8128
9128
10128
11128
12128
13128
14128
15128
16128
17128
18128
19128
20128
21128
22128
23128
24128
25128
26128
27128
28128
29128
30128
31128

Castel Volturno weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan12° / 109119.43.3
Feb12° / 10010.510.43.3
Mar14° / 939.911.74.3
Apr17° / 12°799.913.15.4
May20° / 16°466.314.37.2
Jun24° / 19°233.414.98.5
Jul27° / 22°112.514.68.5
Aug27° / 23°202.913.68.2
Sep24° / 20°908.112.37.5
Oct21° / 16°13210.410.96.6
Nov17° / 13°18913.29.75.0
Dec13° / 10°14512.69.13.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25743
35644
45644
55743
65743
75743
85743
95743
105644
115644
125644
135644
145644
155644
165644
175545
185446
195446
205446
215446
225446
235446
245347
255446
265446
275446
285446
295446
305446
315446

Chance of precipitation in January

Any precipitation

Castel Volturno gets around 109 mm of rain over 11 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 36% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
236
336
435
534
634
733
833
933
1033
1133
1233
1333
1434
1534
1635
1735
1835
1936
2036
2137
2237
2338
2438
2538
2639
2739
2839
2939
3039
3139

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 (%)
1982
2982
3982
4991
5991
6991
7991
8991
9991
10991
11991
12991
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in January

Winds average 12 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.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light 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 06 min at the start of January to 9 h 48 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 7:35 AM to 7:24 AM, and sunset from 4:40 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.17:354:40
29.17:354:41
39.17:354:42
49.17:354:43
59.17:354:43
69.27:354:44
79.27:354:45
89.27:354:46
99.27:354:47
109.27:344:48
119.27:344:49
129.37:344:50
139.37:344:51
149.37:344:52
159.37:334:53
169.47:334:54
179.47:324:55
189.47:324:56
199.47:324:57
209.57:314:59
219.57:315:00
229.57:305:01
239.57:295:02
249.67:295:03
259.67:285:04
269.67:285:05
279.77:275:07
289.77:265:08
299.77:255:09
309.87:245:10
319.87:245:11

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.98 kWh/m².

For context, solar energy here swings from a low near 1.71 kWh/m² to a high of 7.02 kWh/m² in July across the year — January's 1.98 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.8Dim
21.8Dim
31.8Dim
41.8Dim
51.8Dim
61.8Dim
71.8Dim
81.8Dim
91.9Dim
101.9Dim
111.9Dim
121.9Dim
131.9Dim
141.9Dim
152.0Dim
162.0Dim
172.0Moderate
182.0Moderate
192.0Moderate
202.1Moderate
212.1Moderate
222.1Moderate
232.1Moderate
242.1Moderate
252.2Moderate
262.2Moderate
272.2Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in January

Hazard calendar for Castel Volturno

In seasonPeak

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

Castel Volturno's rainy season runs September–March, 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 Castel Volturno?

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

3.3
Sightseeing
11th-best month of the year
0.0
Beach & pool
11th-best month of the year

January is a weaker month for outdoor sightseeing in Castel Volturno.

What to pack for Castel Volturno in January

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

In January, Castel Volturno sees daytime highs around 12°C and nights near 8°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

Sea temperature near Castel Volturno 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 May 27 to Nov 5 — about 5.4 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Castel Volturno 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 Castel Volturno peaks around July 16 at about 10 (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 highModerateLowJul 16UV 10Dec 21UV 1
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Castel Volturno 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 Castel Volturno is worst in April — around 22 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1021 µg/m³Sep 1714 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar21Moderate
Apr22Moderate
May18Moderate
Jun16Moderate
Jul16Moderate
Aug16Moderate
Sep14Moderate
Oct16Moderate
Nov16Moderate
Dec17Moderate
Location & terrain

Where is Castel Volturno?

Castel Volturno sits at 41.0°N, 13.9°E, 3 m above sea level, in Italy. The nearest listed city is Mondragone, 10 km away.

Topography around Castel Volturno

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

Within 3 km, the terrain around Castel Volturno has only modest variations in elevation — a maximum elevation change of 15 m around an average of 1 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 810 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,221 m.

The land around Castel Volturno is covered by cropland (33%) and water (25%) within 3 km, water (48%) and cropland (30%) within 16 km, and water (44%) and trees (35%) within 80 km.

3 km
15 m
16 km
810 m
80 km
2,221 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
January weather nearby: Mondragone 10 km · Casal di Principe 16 km · Trentola-Ducenta 20 km · Monterusciello 22 km · Qualiano 22 km · Aversa 23 km · Capua 24 km · Quarto 24 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 Castel Volturno (41.0329°, 13.9435°, elevation 3 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).