Catania weather in September

In September, Catania sees average daytime highs of 28°C and overnight lows near 19°C, with 54 mm of rain across 6.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 26°C by the end. The sky is clear or mostly clear about 61% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Catania's 4th-clearest and 10th-windiest month. For the whole year in context, see Catania's year-round climate.

Daytime high
28°
4th warmest
Overnight low
19°
10th coldest
Rainfall
54 mm
6.9 wet days
Daylight
12 h 12 min
5:47 AM – 6:01 PM
Cloud cover
37%
4th clearest
Wind
6 km/h
10th windiest
Solar energy
4.83 kWh/m²
Travel score
6.9
out of 10
Air quality
Good
PM10 24.5 µg/m³ · 2018

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 26°C by the end.

A typical September day in Catania reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 31°C. Set against its neighbours, September runs about 4°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13021
23021
33021
43021
52921
62920
72920
82920
92920
102920
112820
122820
132820
142819
152819
162819
172719
182719
192719
202719
212719
222718
232718
242618
252618
262618
272618
282618
292618
302618

How September really feels in Catania

Once humidity and wind are folded in, September 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

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

Catania weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 767.89.74.4
Feb14° / 597.210.64.6
Mar16° / 577.711.75.7
Apr19° / 11°477.612.96.7
May24° / 15°294.5148.0
Jun28° / 19°20314.57.3
Jul31° / 22°101.914.35.7
Aug32° / 22°152.913.45.4
Sep28° / 19°546.912.36.9
Oct23° / 16°648.4117.3
Nov19° / 11°667.9106.4
Dec15° / 647.69.55.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 61% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18812
28812
38713
48713
58515
68515
78416
88416
98317
108317
118218
128218
138119
148020
158020
167921
177822
187723
197723
207624
217525
227525
237426
247327
257327
267228
277228
287228
297129
307129

Chance of precipitation in September

Any precipitation

Catania gets around 54 mm of rain over 6.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
114
215
315
416
517
618
718
819
919
1020
1120
1221
1321
1422
1523
1623
1724
1824
1925
2025
2126
2226
2327
2427
2528
2628
2728
2828
2928
3028

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 30% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
121238443
221339433
321340423
421440413
521441402
621542392
721643372
821643362
931744352
1031844332
1131845322
1231945312
1331946302
1442046292
1542047281
1642147271
1742147261
1842248251
1952348241
2052348231
2152448221
2252548211
2352648201
2462748191
2562748181
2662848171
2762949161
2863049151
2963149140
3063248130

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 5:34 AM to 5:59 AM, and sunset from 6:25 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:346:25
212.85:356:23
312.85:366:22
412.75:376:20
512.75:376:19
612.65:386:17
712.65:396:16
812.65:406:14
912.55:416:12
1012.55:426:11
1112.45:436:09
1212.45:436:08
1312.45:446:06
1412.35:456:04
1512.35:466:03
1612.25:476:01
1712.25:486:00
1812.25:495:58
1912.15:505:56
2012.15:505:55
2112.05:515:53
2212.05:525:52
2311.95:535:50
2411.95:545:48
2511.95:555:47
2611.85:565:45
2711.85:575:44
2811.75:575:42
2911.75:585:40
3011.75:595:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.83 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 7.28 kWh/m² in July across the year — September's 4.83 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.5Bright
45.5Bright
55.4Bright
65.3Bright
75.3Bright
85.2Bright
95.2Bright
105.1Bright
115.1Bright
125.0Bright
135.0Bright
144.9Bright
154.9Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
Planning a trip in September

Is September a good time to visit Catania?

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

6.9
Sightseeing
4th-best month of the year
7.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Catania for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Catania in September

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

In September, Catania sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Catania in September

The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 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 Catania in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Catania 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 Catania in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Catania 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 Catania?

Catania sits at 37.5°N, 15.1°E, 7 m above sea level, in Italy. The nearest listed city is Misterbianco, 6.0 km away.

Topography around Catania

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

Within 3 km, the terrain around Catania has only modest variations in elevation — a maximum elevation change of 180 m around an average of 42 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 939 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,307 m.

The land around Catania is covered by artificial surfaces (54%) within 3 km, water (34%) and trees (27%) within 16 km, and water (32%), trees (26%) and grassland (24%) within 80 km.

3 km
180 m
16 km
939 m
80 km
3,307 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Misterbianco 6.0 km · Gravina di Catania 8.0 km · Mascalucia 9.0 km · San Giovanni la Punta 10 km · Aci Castello 10 km · Belpasso 14 km · Aci Catena 14 km · Acireale 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 Catania (37.4922°, 15.0704°, elevation 7 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).