Aci Castello weather in October

In October, Aci Castello sees average daytime highs of 22°C and overnight lows near 19°C, with 77 mm of rain across 8.2 wet days and about 11 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 21°C by the end. The sky is clear or mostly clear about 51% of the time in October, and the air most often feels humid.

Daylight stretches from about 11 h 36 min at the start of October to 10 h 30 min by month's end. Set against the rest of the year, October is Aci Castello's 8th-clearest and 7th-windiest month. For the whole year in context, see Aci Castello's year-round climate.

Daytime high
22°
5th warmest
Overnight low
19°
8th coldest
Rainfall
77 mm
8.2 wet days
Daylight
11 hours
6:14 AM – 5:15 PM
Cloud cover
44%
8th clearest
Wind
10 km/h
7th windiest
Solar energy
3.6 kWh/m²
Travel score
7.3
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 October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 23°C in the first days to 21°C by the end.

A typical October day in Aci Castello reaches about 22°C in the afternoon and slips back to 19°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 24°C. Set against its neighbours, October runs about 3°C cooler than September and about 4°C warmer than November.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12421
22421
32421
42321
52320
62320
72320
82320
92320
102320
112320
122320
132320
142220
152219
162219
172219
182219
192219
202219
212219
222219
232119
242119
252118
262118
272118
282118
292118
302118
312118

Aci Castello weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 4th-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27426
37426
47327
57327
67327
77228
87228
97129
107129
117129
127129
137030
146931
156931
166931
176832
186832
196733
206733
216733
226733
236733
246634
256634
266634
276634
286634
296634
306634
316634

Chance of precipitation in October

Any precipitation

Aci Castello gets around 77 mm of rain over 8.2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 30% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
325
425
525
625
725
825
926
1026
1126
1226
1326
1426
1526
1626
1726
1826
1926
2026
2126
2227
2327
2428
2528
2629
2729
2830
2930
3030
3130

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the humid band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 20% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
141846293
241946293
342046283
442146282
542145272
642245272
752344262
852444252
952543252
1062543242
1172643232
1272642222
1382742221
1492742211
15102842201
16102841191
17112841181
18122841171
19132941171
20142941161
21152940151
22153040140
23163140130
24163239120
25173438110
26173537110
27183735100
2818383490
2919403290
3020423180
3121432970

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 10 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
79calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 36 min at the start of October to 10 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over October. Sunrise moves from 6:00 AM to 6:29 AM, and sunset from 5:37 PM to 4:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:005:37
211.66:015:35
311.56:025:34
411.56:035:32
511.56:045:31
611.46:045:29
711.46:055:28
811.36:065:26
911.36:075:25
1011.36:085:23
1111.26:095:22
1211.26:105:20
1311.16:115:19
1411.16:125:18
1511.16:135:16
1611.06:145:15
1711.06:155:14
1810.96:165:12
1910.96:175:11
2010.96:185:10
2110.86:195:08
2210.86:205:07
2310.76:215:06
2410.76:225:05
2510.76:235:03
2610.66:245:02
2710.66:255:01
2810.66:265:00
2910.56:274:59
3010.56:284:58
3110.56:294:57

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.6 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 — October's 3.6 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.1Bright
44.1Bright
54.1Bright
64.0Bright
74.0Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.8Moderate
123.8Moderate
133.7Moderate
143.7Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.5Moderate
193.5Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.3Moderate
243.3Moderate
253.2Moderate
263.2Moderate
273.1Moderate
283.1Moderate
293.1Moderate
303.0Moderate
313.0Moderate
Planning a trip in October

Is October a good time to visit Aci Castello?

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

7.3
Sightseeing
6th-best month of the year
5.1
Beach & pool
5th-best month of the year

October is one of the better times to visit Aci Castello for general sightseeing.

What to pack for Aci Castello in October

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

In October, Aci Castello sees daytime highs around 22°C and nights near 19°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

Sea temperature near Aci Castello in October

The nearest coast averages about 23°C in October — 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 October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 5 — enough to warrant sun protection. 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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).