Piossasco weather in September

In September, Piossasco sees average daytime highs of 21°C and overnight lows near 13°C, with 119 mm of rain across 9.6 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 24°C in the first days to 19°C by the end. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 06 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Piossasco's 5th-clearest and 11th-windiest month. For the whole year in context, see Piossasco's year-round climate.

Daytime high
21°
4th warmest
Overnight low
13°
9th coldest
Rainfall
119 mm
9.6 wet days
Daylight
12 h 18 min
6:15 AM – 6:34 PM
Cloud cover
50%
5th clearest
Wind
4 km/h
11th windiest
Solar energy
3.77 kWh/m²
Travel score
6.7
out of 10

Piossasco 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 24°C in the first days to 19°C by the end.

A typical September day in Piossasco reaches about 21°C in the afternoon and slips back to 13°C overnight — a 8°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 5°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12415
22415
32415
42315
52315
62314
72314
82314
92314
102214
112214
122214
132214
142213
152113
162113
172113
182113
192113
202013
212013
222012
232012
242012
252012
261912
271912
281912
291912
301912

How September really feels in Piossasco

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.

Piossasco 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°608.14.390.7
Feb / 638.23.910.11.6
Mar13° / 859.61.611.63.6
Apr16° / 12312.40.313.24.7
May20° / 12°13914.6014.65.7
Jun24° / 15°11411.8015.46.6
Jul26° / 17°849.9015.16.9
Aug26° / 17°9310.6013.96.9
Sep21° / 13°1199.6012.36.7
Oct16° / 12312.40.110.74.6
Nov11° / 13711.51.19.32.4
Dec / 658.63.68.61.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 18% of September, with mostly cloudy or overcast conditions the remaining 42%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16733
26733
36634
46634
56535
66535
76436
86436
96436
106337
116238
126238
136040
146040
155941
165941
175842
185743
195644
205545
215545
225446
235347
245248
255248
265149
275050
284951
294951
304753

Chance of precipitation in September

Any precipitation

Piossasco gets around 119 mm of rain over 9.6 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 33% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
232
332
432
532
631
731
831
931
1031
1131
1231
1332
1432
1532
1632
1733
1833
1933
2034
2134
2234
2335
2435
2536
2636
2737
2838
2938
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 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14133242
24333222
34434211
44634191
54735171
64935161
75035141
85136130
95236120
105336110
115336110
125436100
135535100
14563590
15573490
16583390
17593380
18603280
19613180
20633070
21642970
22652870
23662860
24672760
25692650
26702550
27712540
28722440
29732430
30732430

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 06 min 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 90 minutes over September. Sunrise moves from 5:57 AM to 6:33 AM, and sunset from 7:03 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:577:03
213.15:587:01
313.05:596:59
412.96:006:57
512.96:026:55
612.86:036:53
712.86:046:51
812.76:056:50
912.76:076:48
1012.66:086:46
1112.66:096:44
1212.56:106:42
1312.56:126:40
1412.46:136:38
1512.46:146:36
1612.36:156:34
1712.36:166:32
1812.26:186:30
1912.16:196:28
2012.16:206:26
2112.06:216:24
2212.06:236:22
2311.96:246:20
2411.96:256:18
2511.86:266:16
2611.86:286:14
2711.76:296:12
2811.76:306:10
2911.66:316:08
3011.66:336:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.77 kWh/m².

For context, solar energy here swings from a low near 1.42 kWh/m² to a high of 6.01 kWh/m² in July across the year — September's 3.77 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.4Bright
44.4Bright
54.3Bright
64.3Bright
74.2Bright
84.2Bright
94.1Bright
104.1Bright
114.0Bright
124.0Moderate
133.9Moderate
143.9Moderate
153.8Moderate
163.7Moderate
173.7Moderate
183.6Moderate
193.6Moderate
203.5Moderate
213.4Moderate
223.4Moderate
233.3Moderate
243.3Moderate
253.2Moderate
263.2Moderate
273.1Moderate
283.0Moderate
293.0Moderate
303.0Moderate
Planning a trip in September

Is September a good time to visit Piossasco?

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

6.7
Sightseeing
3rd-best month of the year
4.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Piossasco for sightseeing.

What to pack for Piossasco in September

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

In September, Piossasco sees daytime highs around 21°C and nights near 13°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Piossasco in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Piossasco peaks around July 13 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 13UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun8Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Piossasco 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 Piossasco is worst in March — around 18 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 11 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2118 µg/m³Nov 2211 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar18Moderate
Apr17Moderate
May15Moderate
Jun17Moderate
Jul15Moderate
Aug14Moderate
Sep13Moderate
Oct13Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Piossasco?

Piossasco sits at 45.0°N, 7.5°E, 304 m above sea level, in Italy. The nearest listed city is Orbassano, 6.0 km away.

Topography around Piossasco

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

Within 3 km, the terrain around Piossasco has large variations in elevation — a maximum elevation change of 614 m around an average of 342 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,691 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,893 m.

The land around Piossasco is covered by trees (33%), grassland (27%) and cropland (27%) within 3 km, trees (36%) and cropland (31%) within 16 km, and trees (40%) and grassland (26%) within 80 km.

3 km
614 m
16 km
1,691 m
80 km
3,893 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icemoss and lichen
September weather nearby: Orbassano 6.0 km · Rivoli 10 km · Grugliasco 13 km · Alpignano 13 km · Collegno 13 km · Mirafiori Sud 13 km · Mirafiori Nord 14 km · Filadelfia 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 Piossasco (44.988°, 7.4601°, elevation 304 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. 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).