Ascoli Piceno weather in September

In September, Ascoli Piceno sees average daytime highs of 21°C and overnight lows near 12°C, with 104 mm of rain across 12.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 43% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Ascoli Piceno's 4th-clearest and 8th-windiest month. For the whole year in context, see Ascoli Piceno's year-round climate.

Daytime high
21°
4th warmest
Overnight low
12°
9th coldest
Rainfall
104 mm
12.5 wet days
Daylight
12 h 18 min
5:51 AM – 6:09 PM
Cloud cover
48%
4th clearest
Wind
5 km/h
8th windiest
Solar energy
4.35 kWh/m²
Travel score
6.3
out of 10

Ascoli Piceno is municipality seat in Ascoli Piceno, Italy.

Air quality
Moderate
PM2.5 13.7 µg/m³ · 2019

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 23°C in the first days to 20°C by the end.

A typical September day in Ascoli Piceno reaches about 21°C in the afternoon and slips back to 12°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°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°151015202530
Avg high (°C)Avg low (°C)
12414
22313
32313
42313
52313
62313
72313
82213
92212
102212
112212
122212
132212
142212
152112
162112
172112
182111
192111
202111
212111
222011
232011
242011
252011
262011
272010
282010
291910
301910

How September really feels in Ascoli Piceno

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.

Ascoli Piceno weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°7810.85.79.20.7
Feb / -1°7310.76.110.21.2
Mar11° / 9813.14.811.62.6
Apr15° / 11514.71.813.13.9
May19° / 12415.60.114.45.4
Jun23° / 13°10612.8015.16.6
Jul26° / 15°8511.7014.87.0
Aug26° / 15°8912.4013.76.8
Sep21° / 12°10412.5012.36.3
Oct17° / 8711.60.210.85.3
Nov12° / 105122.29.53.0
Dec / 9712.15.68.91.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 38%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17228
27228
37129
47030
56931
66832
76733
86634
96634
106436
116436
126436
136238
146238
156139
166139
176040
186040
195941
205941
215941
225842
235842
245842
255842
265743
275743
285743
295743
305644

Chance of precipitation in September

Any precipitation

Ascoli Piceno gets around 104 mm of rain over 12.5 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 42% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
143
243
343
443
543
643
743
843
943
1043
1143
1243
1344
1444
1544
1644
1744
1844
1943
2043
2142
2242
2341
2441
2540
2640
2740
2839
2939
3039

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 59% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1354321
2384319
3404317
4424315
5444313
6464311
7484310
849438
950437
1051427
1152426
1253425
1354415
1455405
1557394
1658384
1759374
1862353
1963343
2065323
2167303
2269292
2371272
2473252
2574242
2677221
2778211
2879201
2980191
3082180

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 84 minutes over September. Sunrise moves from 5:35 AM to 6:07 AM, and sunset from 6:36 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:356:36
213.05:366:34
312.95:376:33
412.95:386:31
512.85:396:29
612.85:406:27
712.75:416:25
812.75:426:23
912.65:446:22
1012.65:456:20
1112.55:466:18
1212.55:476:16
1312.45:486:14
1412.45:496:12
1512.35:506:10
1612.35:516:09
1712.25:536:07
1812.25:546:05
1912.15:556:03
2012.15:566:01
2112.05:575:59
2212.05:585:57
2311.95:595:56
2411.96:005:54
2511.86:025:52
2611.86:035:50
2711.76:045:48
2811.76:055:46
2911.66:065:45
3011.66:075:43

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.35 kWh/m².

For context, solar energy here swings from a low near 1.52 kWh/m² to a high of 6.71 kWh/m² in July across the year — September's 4.35 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.0Bright
35.0Bright
44.9Bright
54.9Bright
64.8Bright
74.8Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.5Bright
134.5Bright
144.4Bright
154.4Bright
164.3Bright
174.3Bright
184.2Bright
194.2Bright
204.1Bright
214.1Bright
224.0Bright
234.0Moderate
244.0Moderate
253.9Moderate
263.9Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Is September a good time to visit Ascoli Piceno?

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

6.3
Sightseeing
4th-best month of the year
4.0
Beach & pool
4th-best month of the year

September is a reasonable time to visit Ascoli Piceno for sightseeing.

What to pack for Ascoli Piceno in September

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

In September, Ascoli Piceno sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Ascoli Piceno in September

The nearest coast averages about 23°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 39 km away) is warmest in August at about 26°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 1 to Oct 13 — about 4.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct20Cool
Nov17Cool
Dec15Bracing

UV index in Ascoli Piceno in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ascoli Piceno peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 16UV 10Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5High
Apr6High
May7High
Jun8Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Ascoli Piceno 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 Ascoli Piceno is worst in March — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Ascoli Piceno's WHO annual average of 13.7 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateMar 2417 µg/m³Sep 1612 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar17Moderate
Apr17Moderate
May13Moderate
Jun13Moderate
Jul12Good
Aug13Moderate
Sep11Good
Oct13Moderate
Nov12Moderate
Dec13Moderate
Location & terrain

Where is Ascoli Piceno?

Ascoli Piceno sits at 42.9°N, 13.6°E, 154 m above sea level, in Italy. The nearest listed city is Teramo, 24 km away.

Topography around Ascoli Piceno

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

Within 3 km, the terrain around Ascoli Piceno has large variations in elevation — a maximum elevation change of 688 m around an average of 278 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,771 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,846 m.

The land around Ascoli Piceno is covered by trees (63%) within 3 km, trees (58%) and grassland (20%) within 16 km, and trees (42%) within 80 km.

3 km
688 m
16 km
1,771 m
80 km
2,846 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Teramo 24 km · San Benedetto del Tronto 27 km · Giulianova 34 km · Fermo 36 km · Porto San Giorgio 40 km · Roseto degli Abruzzi 41 km · Tolentino 46 km · Porto Sant'Elpidio 47 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 Ascoli Piceno (42.8535°, 13.5739°, elevation 154 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).