Aci Castello weather in January

In January, Aci Castello sees average daytime highs of 14°C and overnight lows near 11°C, with 83 mm of rain across 8.4 wet days and about 9.7 hours of daylight. It is the 11th-warmest and 1st-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 46% 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 Aci Castello's 10th-clearest and 3rd-windiest month. For the whole year in context, see Aci Castello's year-round climate.

Daytime high
14°
11th warmest
Overnight low
11°
2nd coldest
Rainfall
83 mm
8.4 wet days
Daylight
9 h 42 min
7:18 AM – 4:59 PM
Cloud cover
47%
10th clearest
Wind
12 km/h
3rd windiest
Solar energy
2.43 kWh/m²
Travel score
4.4
out of 10

Aci Castello 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 14°C through the month.

A typical January day in Aci Castello reaches about 14°C in the afternoon and slips back to 11°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 12°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)
11511
21511
31411
41411
51411
61411
71411
81411
91411
101411
111411
121411
131411
141411
151411
161411
171411
181411
191411
201411
211411
221411
231411
241411
251411
261411
271411
281411
291411
301411
311411

Aci Castello weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 11°838.49.74.4
Feb14° / 11°616.910.64.5
Mar15° / 12°526.711.75.2
Apr17° / 14°336.112.96.3
May20° / 17°163.4147.8
Jun24° / 21°121.914.58.9
Jul27° / 24°4114.38.8
Aug28° / 25°81.413.48.3
Sep25° / 22°505.512.38.0
Oct22° / 19°778.2117.3
Nov19° / 16°838.4106.4
Dec16° / 12°778.89.55.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26931
36931
46931
56931
66931
76832
86832
96733
106634
116634
126535
136535
146337
156337
166238
176238
186139
196139
206139
216139
226040
236040
246040
256139
266139
276139
286238
296238
306337
316337

Chance of precipitation in January

Any precipitation

Aci Castello gets around 83 mm of rain over 8.4 wet days in January, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 28% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
124
223
323
423
523
623
723
823
924
1024
1125
1225
1326
1427
1528
1628
1729
1830
1931
2031
2131
2232
2332
2432
2532
2631
2731
2831
2930
3029
3129

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.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1982
2982
3982
4982
5982
6982
7982
8982
9982
10982
11982
12982
13982
14982
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25991
26991
27991
28991
29991
30991
31991

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
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
1812light breeze
1912light 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 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 7:19 AM to 7:11 AM, and sunset from 4:46 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:194:46
29.57:194:47
39.57:194:48
49.57:204:48
59.57:204:49
69.57:204:50
79.57:204:51
89.57:204:52
99.57:204:52
109.67:204:53
119.67:194:54
129.67:194:55
139.67:194:56
149.67:194:57
159.77:194:58
169.77:184:59
179.77:185:00
189.77:185:01
199.77:185:02
209.87:175:03
219.87:175:04
229.87:165:05
239.87:165:06
249.97:155:07
259.97:155:08
269.97:145:09
279.97:145:10
2810.07:135:11
2910.07:125:12
3010.07:125:13
3110.17:115:15

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.43 kWh/m².

For context, solar energy here swings from a low near 2.11 kWh/m² to a high of 7.32 kWh/m² in July across the year — January's 2.43 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.3Moderate
32.3Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.4Moderate
142.4Moderate
152.4Moderate
162.4Moderate
172.4Moderate
182.4Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.7Moderate
292.7Moderate
302.8Moderate
312.8Moderate
Planning a trip in January

Is January a good time to visit Aci Castello?

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

4.4
Sightseeing
12th-best month of the year
0.0
Beach & pool
11th-best month of the year

January is a reasonable time to visit Aci Castello for sightseeing.

What to pack for Aci Castello in January

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

In January, Aci Castello sees daytime highs around 14°C and nights near 11°C. Worth packing: a warm layer and rain gear. About 8 days see rain.

a warm layerrain gear

Sea temperature near Aci Castello 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 20 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 2 to Nov 11 — about 5.4 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index in Aci Castello 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 Aci Castello peaks around July 15 at about 10 (extreme) — 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighHighVery highVery highHighModerateJul 15UV 10Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar6High
Apr5Moderate
May6High
Jun9Very high
Jul10Extreme
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Aci Castello 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 Aci Castello 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).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 2217 µg/m³Dec 1511 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb15Moderate
Mar16Moderate
Apr17Moderate
May17Moderate
Jun16Moderate
Jul14Moderate
Aug15Moderate
Sep14Moderate
Oct13Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Aci Castello?

Aci Castello sits at 37.6°N, 15.1°E, 15 m above sea level, in Italy. The nearest listed city is San Giovanni la Punta, 5.0 km away.

Topography around Aci Castello

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

Within 3 km, the terrain around Aci Castello has significant variations in elevation — a maximum elevation change of 376 m around an average of 90 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,348 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,306 m.

The land around Aci Castello is covered by water (42%) and trees (38%) within 3 km, water (51%) and trees (27%) within 16 km, and water (36%), trees (27%) and grassland (21%) within 80 km.

3 km
376 m
16 km
1,348 m
80 km
3,306 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: San Giovanni la Punta 5.0 km · Aci Catena 6.0 km · Acireale 6.0 km · Gravina di Catania 7.0 km · Mascalucia 9.0 km · Catania 10 km · Misterbianco 13 km · Belpasso 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 Aci Castello (37.5556°, 15.1454°, elevation 15 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).