Comiso weather in September

In September, Comiso sees average daytime highs of 25°C and overnight lows near 20°C, with 33 mm of rain across 5.5 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 24°C by the end. The sky is clear or mostly clear about 70% of the time in September, and the air most often feels muggy.

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 Comiso's 4th-clearest and 9th-windiest month. For the whole year in context, see Comiso's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
33 mm
5.5 wet days
Daylight
12 h 12 min
5:49 AM – 6:03 PM
Cloud cover
31%
4th clearest
Wind
11 km/h
9th windiest
Solar energy
5.11 kWh/m²
Travel score
8.1
out of 10

Comiso is chief town of the homonym municipality.

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 27°C in the first days to 24°C by the end.

A typical September day in Comiso reaches about 25°C in the afternoon and slips back to 20°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 3°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12722
22721
32721
42721
52621
62621
72621
82621
92621
102621
112621
122620
132520
142520
152520
162520
172520
182520
192520
202520
212520
222419
232419
242419
252419
262419
272419
282419
292419
302419

Comiso weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 648.29.84.0
Feb13° / 547.710.64.0
Mar15° / 10°457.411.74.9
Apr17° / 12°326.312.96.3
May21° / 15°163.513.97.9
Jun25° / 19°101.814.58.9
Jul27° / 22°30.714.38.9
Aug28° / 22°91.813.48.2
Sep25° / 20°335.512.38.1
Oct22° / 17°557.1117.4
Nov18° / 13°659.2106.1
Dec15° / 10°628.69.54.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1928
2919
39010
48911
58911
68812
78713
88614
98614
108614
118416
128416
138416
148317
158317
168218
178119
188119
198020
208020
217921
227822
237723
247723
257723
267723
277624
287525
297525
307525

Chance of precipitation in September

Any precipitation

Comiso gets around 33 mm of rain over 5.5 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 18% and peaks near 23% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
111
212
312
413
514
615
715
816
916
1016
1117
1217
1317
1417
1518
1618
1719
1819
1920
2020
2120
2221
2321
2421
2522
2622
2722
2823
2923
3023

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 44% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11628578
21729567
31730557
41830556
51831546
61932535
71933525
81933534
911034514
1011035504
1111036503
1221136483
1321137473
1421238463
1521239442
1621340432
1721441412
1831442392
1931543372
2041644352
2141745332
2241745312
2351846301
2451946281
2552046271
2652147261
2762247251
2862347241
2962446240
3062546230

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 5:36 AM to 6:01 AM, and sunset from 6:26 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:366:26
212.85:376:25
312.85:386:23
412.75:396:22
512.75:406:20
612.65:416:19
712.65:416:17
812.65:426:15
912.55:436:14
1012.55:446:12
1112.45:456:11
1212.45:466:09
1312.45:466:08
1412.35:476:06
1512.35:486:04
1612.25:496:03
1712.25:506:01
1812.25:516:00
1912.15:515:58
2012.15:525:57
2112.05:535:55
2212.05:545:53
2311.95:555:52
2411.95:565:50
2511.95:575:49
2611.85:575:47
2711.85:585:46
2811.75:595:44
2911.76:005:42
3011.76:015:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.11 kWh/m².

For context, solar energy here swings from a low near 2.23 kWh/m² to a high of 7.5 kWh/m² in June across the year — September's 5.11 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.6Bright
75.5Bright
85.5Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.3Bright
145.2Bright
155.2Bright
165.1Bright
175.0Bright
185.0Bright
195.0Bright
204.9Bright
214.8Bright
224.8Bright
234.8Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Is September a good time to visit Comiso?

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

8.1
Sightseeing
4th-best month of the year
7.3
Beach & pool
4th-best month of the year

September is one of the better times to visit Comiso for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Comiso in September

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

In September, Comiso sees daytime highs around 25°C and nights near 20°C. Worth packing: light clothes and sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Comiso 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 22 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 3 to Nov 15 — about 5.5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Comiso 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 Comiso peaks around July 14 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighHighVery highHighModerateJul 14UV 10Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar6High
Apr5Moderate
May5High
Jun9Very high
Jul10Extreme
Aug9Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low
Location & terrain

Where is Comiso?

Comiso sits at 36.9°N, 14.6°E, 209 m above sea level, in Italy. The nearest listed city is Vittoria, 7.0 km away.

Topography around Comiso

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

Within 3 km, the terrain around Comiso has significant variations in elevation — a maximum elevation change of 488 m around an average of 290 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 901 m; within 80 km, large variations in elevation — a maximum elevation change of 988 m.

The land around Comiso is covered by grassland (47%) and cropland (26%) within 3 km, grassland (42%) and cropland (33%) within 16 km, and water (46%) and grassland (22%) within 80 km.

3 km
488 m
16 km
901 m
80 km
988 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Vittoria 7.0 km · Ragusa 11 km · Modica 17 km · Scicli 20 km · Niscemi 29 km · Pozzallo 32 km · Caltagirone 33 km · Rosolini 34 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 Comiso (36.9489°, 14.6073°, elevation 209 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).