Castelvetrano weather in January

In January, Castelvetrano sees average daytime highs of 14°C and overnight lows near 9°C, with 62 mm of rain across 9.6 wet days and about 9.7 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 14°C through the month. The sky is clear or mostly clear about 36% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of January to 10 h 06 min by month's end. Set against the rest of the year, January is Castelvetrano's 11th-clearest and 5th-windiest month. For the whole year in context, see Castelvetrano's year-round climate.

Daytime high: 14°; 11th warmest
Overnight low: 9°; 2nd coldest
Rainfall: 62 mm; 9.6 wet days
Daylight: 9 h 42 min; 7:28 AM – 5:08 PM
Cloud cover: 52%; 11th clearest
Wind: 14 km/h; 5th windiest
Solar energy: 2.48 kWh/m²
Travel score: 4.4; out of 10

Castelvetrano is chief town of the homonym municipality.

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

← December Castelvetrano year-round climate February →Best places to visit in January

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 14°C through the month.

A typical January day in Castelvetrano reaches about 14°C in the afternoon and slips back to 9°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, January runs about 1°C cooler than December and on par with February.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	15	15	15	15	15	15	15	15	15	15	15	15	15	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Avg low (°C)	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	14	9
15	14	9
16	14	9
17	14	9
18	14	9
19	14	9
20	14	9
21	14	9
22	14	9
23	14	9
24	14	9
25	14	9
26	14	9
27	14	9
28	14	9
29	14	9
30	14	9
31	14	9

How January really feels in Castelvetrano

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

heat index over the day's high

Days feeling ≤ 0°C

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.

Castelvetrano weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	14° / 9°	62	9.6	9.7	4.4
Feb	14° / 9°	61	9.5	10.5	4.4
Mar	16° / 10°	54	8.5	11.7	5.5
Apr	19° / 12°	46	7.8	12.9	6.6
May	23° / 16°	22	4.7	14	8.1
Jun	27° / 19°	7	1.6	14.6	8.1
Jul	30° / 22°	3	0.6	14.3	6.8
Aug	31° / 23°	8	1.7	13.5	6.2
Sep	27° / 20°	43	6.4	12.3	7.3
Oct	24° / 17°	71	8.2	11	7.4
Nov	19° / 13°	73	10.3	10	6.2
Dec	16° / 10°	66	10.2	9.4	5.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 23% of January, with mostly cloudy or overcast conditions the remaining 41%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	59	60	60	60	61	61	61	61	61	60	60	60	60	59	59	58	58	58	57	57	57	57	56	56	56	57	57	57	58	58	58
Cloudier (%)	41	40	40	40	39	39	39	39	39	40	40	40	40	41	41	42	42	42	43	43	43	43	44	44	44	43	43	43	42	42	42

	Clearer (%)	Cloudier (%)
1	59	41
2	60	40
3	60	40
4	60	40
5	61	39
6	61	39
7	61	39
8	61	39
9	61	39
10	60	40
11	60	40
12	60	40
13	60	40
14	59	41
15	59	41
16	58	42
17	58	42
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	58	42
30	58	42
31	58	42

Chance of precipitation in January

Any precipitation

Castelvetrano gets around 62 mm of rain over 9.6 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 31% and peaks near 35% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	29	29	29	28	28	28	28	28	28	28	28	28	29	30	30	31	32	32	33	33	34	34	34	34	35	35	35	35	34	34	34

	Rain chance (%)
1	29
2	29
3	29
4	28
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	29
14	30
15	30
16	31
17	32
18	32
19	33
20	33
21	34
22	34
23	34
24	34
25	35
26	35
27	35
28	35
29	34
30	34
31	34

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	97	97	97	97	97	97	97	98	98	98	98	98	99	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	3	3	3	3	3	3	3	2	2	2	2	2	1	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

Wind in January

Winds average 14 km/h in January.

Across January, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	15	15	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	15	light breeze
2	15	light breeze
3	14	light breeze
4	14	light breeze
5	14	light breeze
6	14	light breeze
7	14	light breeze
8	14	light breeze
9	14	light breeze
10	14	light breeze
11	14	light breeze
12	14	light breeze
13	14	light breeze
14	14	light breeze
15	14	light breeze
16	14	light breeze
17	14	light breeze
18	14	light breeze
19	14	light breeze
20	14	light breeze
21	14	light breeze
22	14	light breeze
23	14	light breeze
24	14	light breeze
25	14	light breeze
26	15	light breeze
27	15	light breeze
28	15	light breeze
29	15	light breeze
30	15	light breeze
31	15	light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 24 min at the start of January to 10 h 06 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 7:29 AM to 7:21 AM, and sunset from 4:55 PM to 5:24 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	9.4	9.4	9.5	9.5	9.5	9.5	9.5	9.5	9.5	9.6	9.6	9.6	9.6	9.6	9.6	9.7	9.7	9.7	9.7	9.8	9.8	9.8	9.8	9.9	9.9	9.9	9.9	10.0	10.0	10.0	10.1
Sunrise (AM)	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:29	7:28	7:28	7:28	7:28	7:27	7:27	7:26	7:26	7:26	7:25	7:24	7:24	7:23	7:23	7:22	7:21	7:21
Sunset (PM)	4:55	4:56	4:57	4:57	4:58	4:59	5:00	5:01	5:01	5:02	5:03	5:04	5:05	5:06	5:07	5:08	5:09	5:10	5:11	5:12	5:13	5:14	5:15	5:16	5:17	5:18	5:19	5:20	5:22	5:23	5:24

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	9.4	7:29	4:55
2	9.4	7:29	4:56
3	9.5	7:29	4:57
4	9.5	7:29	4:57
5	9.5	7:29	4:58
6	9.5	7:29	4:59
7	9.5	7:29	5:00
8	9.5	7:29	5:01
9	9.5	7:29	5:01
10	9.6	7:29	5:02
11	9.6	7:29	5:03
12	9.6	7:29	5:04
13	9.6	7:29	5:05
14	9.6	7:29	5:06
15	9.6	7:28	5:07
16	9.7	7:28	5:08
17	9.7	7:28	5:09
18	9.7	7:28	5:10
19	9.7	7:27	5:11
20	9.8	7:27	5:12
21	9.8	7:26	5:13
22	9.8	7:26	5:14
23	9.8	7:26	5:15
24	9.9	7:25	5:16
25	9.9	7:24	5:17
26	9.9	7:24	5:18
27	9.9	7:23	5:19
28	10.0	7:23	5:20
29	10.0	7:22	5:22
30	10.0	7:21	5:23
31	10.1	7:21	5:24

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.48 kWh/m².

For context, solar energy here swings from a low near 2.13 kWh/m² to a high of 7.62 kWh/m² in June across the year — January's 2.48 kWh/m² sits near the bottom.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	2.2	2.2	2.3	2.3	2.3	2.3	2.3	2.3	2.4	2.4	2.4	2.4	2.4	2.4	2.5	2.5	2.5	2.5	2.5	2.5	2.6	2.6	2.6	2.6	2.7	2.7	2.7	2.8	2.8	2.8	2.9
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	2.2	Moderate
2	2.2	Moderate
3	2.3	Moderate
4	2.3	Moderate
5	2.3	Moderate
6	2.3	Moderate
7	2.3	Moderate
8	2.3	Moderate
9	2.4	Moderate
10	2.4	Moderate
11	2.4	Moderate
12	2.4	Moderate
13	2.4	Moderate
14	2.4	Moderate
15	2.5	Moderate
16	2.5	Moderate
17	2.5	Moderate
18	2.5	Moderate
19	2.5	Moderate
20	2.5	Moderate
21	2.6	Moderate
22	2.6	Moderate
23	2.6	Moderate
24	2.6	Moderate
25	2.7	Moderate
26	2.7	Moderate
27	2.7	Moderate
28	2.8	Moderate
29	2.8	Moderate
30	2.8	Moderate
31	2.9	Moderate

Planning a trip in January

Is January a good time to visit Castelvetrano?

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

4.4

Sightseeing

11th-best month of the year

0.0

Beach & pool

12th-best month of the year

January is a reasonable time to visit Castelvetrano for sightseeing.

What to pack for Castelvetrano in January

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

In January, Castelvetrano sees daytime highs around 14°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Castelvetrano 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 16 km away) is warmest in August at about 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 9 to Nov 5 — about 4.9 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	15	15	15	15	18	21	24	25	24	22	19	16
Comfort	Cool	Bracing	Bracing	Cool	Cool	Refreshing	Refreshing	Warm	Refreshing	Refreshing	Cool	Cool

	Sea temperature (°C)	Comfort
Jan	15	Cool
Feb	15	Bracing
Mar	15	Bracing
Apr	15	Cool
May	18	Cool
Jun	21	Refreshing
Jul	24	Refreshing
Aug	25	Warm
Sep	24	Refreshing
Oct	22	Refreshing
Nov	19	Cool
Dec	16	Cool

UV index in Castelvetrano 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 Castelvetrano peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	4	6	4	5	9	10	8	7	5	3	2
Level	Low	Moderate	High	Moderate	High	Very high	Extreme	Very high	High	Moderate	Moderate	Low

	UV index (midday)	Level
Jan	2	Low
Feb	4	Moderate
Mar	6	High
Apr	4	Moderate
May	5	High
Jun	9	Very high
Jul	10	Extreme
Aug	8	Very high
Sep	7	High
Oct	5	Moderate
Nov	3	Moderate
Dec	2	Low

Location & terrain

Where is Castelvetrano?

Castelvetrano sits at 37.7°N, 12.8°E, 187 m above sea level, in Italy. The nearest listed city is Mazara del Vallo, 18 km away.

Topography around Castelvetrano

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

Within 3 km, the terrain around Castelvetrano has only modest variations in elevation — a maximum elevation change of 166 m around an average of 164 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 583 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,576 m.

The land around Castelvetrano is covered by grassland (46%) and trees (21%) within 3 km, grassland (52%) and cropland (21%) within 16 km, and water (56%) and grassland (24%) within 80 km.

3 km

166 m

grassland 46%

16 km

583 m

grassland 52%

80 km

1,576 m

water 56%

treesshrubsgrasslandcroplandartificial surfaceswater

← December Castelvetrano year-round climate February →Best places to visit in January

January weather nearby: Mazara del Vallo 18 km · Sciacca 32 km · Marsala 34 km · Alcamo 36 km · Trapani 44 km · Casa Santa 44 km · Ribera 47 km · Partinico 50 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

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 Castelvetrano (37.6808°, 12.7919°, elevation 187 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).

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	14	9
15	14	9
16	14	9
17	14	9
18	14	9
19	14	9
20	14	9
21	14	9
22	14	9
23	14	9
24	14	9
25	14	9
26	14	9
27	14	9
28	14	9
29	14	9
30	14	9
31	14	9

	Clearer (%)	Cloudier (%)
1	59	41
2	60	40
3	60	40
4	60	40
5	61	39
6	61	39
7	61	39
8	61	39
9	61	39
10	60	40
11	60	40
12	60	40
13	60	40
14	59	41
15	59	41
16	58	42
17	58	42
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	58	42
30	58	42
31	58	42

	Rain chance (%)
1	29
2	29
3	29
4	28
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	29
14	30
15	30
16	31
17	32
18	32
19	33
20	33
21	34
22	34
23	34
24	34
25	35
26	35
27	35
28	35
29	34
30	34
31	34

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	14	9
15	14	9
16	14	9
17	14	9
18	14	9
19	14	9
20	14	9
21	14	9
22	14	9
23	14	9
24	14	9
25	14	9
26	14	9
27	14	9
28	14	9
29	14	9
30	14	9
31	14	9

	Clearer (%)	Cloudier (%)
1	59	41
2	60	40
3	60	40
4	60	40
5	61	39
6	61	39
7	61	39
8	61	39
9	61	39
10	60	40
11	60	40
12	60	40
13	60	40
14	59	41
15	59	41
16	58	42
17	58	42
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	58	42
30	58	42
31	58	42

	Rain chance (%)
1	29
2	29
3	29
4	28
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	29
14	30
15	30
16	31
17	32
18	32
19	33
20	33
21	34
22	34
23	34
24	34
25	35
26	35
27	35
28	35
29	34
30	34
31	34

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0

	Avg high (°C)	Avg low (°C)
1	15	9
2	15	9
3	15	9
4	15	9
5	15	9
6	15	9
7	15	9
8	15	9
9	15	9
10	15	9
11	15	9
12	15	9
13	15	9
14	14	9
15	14	9
16	14	9
17	14	9
18	14	9
19	14	9
20	14	9
21	14	9
22	14	9
23	14	9
24	14	9
25	14	9
26	14	9
27	14	9
28	14	9
29	14	9
30	14	9
31	14	9

	Clearer (%)	Cloudier (%)
1	59	41
2	60	40
3	60	40
4	60	40
5	61	39
6	61	39
7	61	39
8	61	39
9	61	39
10	60	40
11	60	40
12	60	40
13	60	40
14	59	41
15	59	41
16	58	42
17	58	42
18	58	42
19	57	43
20	57	43
21	57	43
22	57	43
23	56	44
24	56	44
25	56	44
26	57	43
27	57	43
28	57	43
29	58	42
30	58	42
31	58	42

	Rain chance (%)
1	29
2	29
3	29
4	28
5	28
6	28
7	28
8	28
9	28
10	28
11	28
12	28
13	29
14	30
15	30
16	31
17	32
18	32
19	33
20	33
21	34
22	34
23	34
24	34
25	35
26	35
27	35
28	35
29	34
30	34
31	34

	Dry (%)	Comfortable (%)
1	97	3
2	97	3
3	97	3
4	97	3
5	97	3
6	97	3
7	97	3
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	99	1
14	99	1
15	99	1
16	99	1
17	99	1
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0
31	100	0