Piacenza weather in September

In September, Piacenza sees average daytime highs of 24°C and overnight lows near 15°C, with 93 mm of rain across 8.8 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 21°C by the end. The sky is clear or mostly clear about 46% 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 Piacenza's 3rd-clearest and 5th-windiest month. For the whole year in context, see Piacenza's year-round climate.

Daytime high
24°
4th warmest
Overnight low
15°
9th coldest
Rainfall
93 mm
8.8 wet days
Daylight
12 h 18 min
6:06 AM – 6:25 PM
Cloud cover
46%
3rd clearest
Wind
6 km/h
5th windiest
Solar energy
4.1 kWh/m²
Travel score
7.1
out of 10
Air quality
Elevated
PM2.5 20.8 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 26°C in the first days to 21°C by the end.

A typical September day in Piacenza reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 28°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12718
22717
32617
42617
52617
62617
72617
82516
92516
102516
112516
122516
132416
142415
152415
162415
172415
182315
192315
202315
212314
222314
232214
242214
252214
262214
272214
282214
292113
302113

How September really feels in Piacenza

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.

Piacenza weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 597.72.890.9
Feb / 617.52.110.12.1
Mar14° / 688.21.111.64.4
Apr18° / 8810.80.113.25.6
May22° / 14°9211.1014.66.6
Jun27° / 17°759.8015.46.7
Jul30° / 20°547.7015.15.8
Aug29° / 19°739013.96.0
Sep24° / 15°938.8012.37.1
Oct18° / 11°10210010.75.7
Nov12° / 11110.60.79.32.9
Dec / 738.52.38.61.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% 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 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27030
37030
47030
56931
66931
76931
86931
96931
106832
116832
126733
136733
146634
156634
166535
176337
186337
196337
206238
216238
226139
236040
246040
255941
265842
275842
285743
295644
305545

Chance of precipitation in September

Any precipitation

Piacenza gets around 93 mm of rain over 8.8 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 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
130
229
329
429
529
629
729
829
930
1030
1130
1231
1331
1431
1531
1631
1731
1831
1931
2031
2131
2231
2331
2430
2530
2631
2731
2831
2932
3032

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 37% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
122273814
223283712
324283611
425293510
52630349
62731338
72832338
82932327
93032326
103032316
113132315
123232315
133332305
143432294
153532284
163732284
173832274
183932263
194132253
204232242
214332232
224433222
234533211
244633191
254734181
264834171
274835161
284935161
295035150
305135140

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 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 5:48 AM to 6:24 AM, and sunset from 6:54 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:486:54
213.15:496:52
313.05:506:50
412.95:516:48
512.95:536:46
612.85:546:45
712.85:556:43
812.75:566:41
912.75:586:39
1012.65:596:37
1112.66:006:35
1212.56:016:33
1312.56:036:31
1412.46:046:29
1512.46:056:27
1612.36:066:25
1712.36:086:23
1812.26:096:21
1912.16:106:19
2012.16:116:17
2112.06:126:15
2212.06:146:13
2311.96:156:11
2411.96:166:09
2511.86:186:07
2611.86:196:05
2711.76:206:03
2811.76:216:01
2911.66:235:59
3011.66:245:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.1 kWh/m².

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 6.5 kWh/m² in July across the year — September's 4.1 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.7Bright
44.7Bright
54.6Bright
64.6Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.2Bright
144.2Bright
154.1Bright
164.1Bright
174.0Bright
184.0Moderate
193.9Moderate
203.8Moderate
213.8Moderate
223.7Moderate
233.7Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.3Moderate
303.3Moderate
Planning a trip in September

Is September a good time to visit Piacenza?

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

7.1
Sightseeing
1st-best month of the year
5.8
Beach & pool
4th-best month of the year

September is one of the better times to visit Piacenza for general sightseeing.

What to pack for Piacenza in September

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

In September, Piacenza sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and rain gear. About 9 days see rain.

light clothesrain gear

UV index in Piacenza 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 Piacenza peaks around July 14 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 10 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 14UV 8Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr7High
May7High
Jun7Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Piacenza 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 Piacenza is worst in January — around 25 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Piacenza's WHO annual average of 20.8 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1725 µg/m³Aug 1917 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb22Moderate
Mar25Moderate
Apr23Moderate
May20Moderate
Jun21Moderate
Jul18Moderate
Aug17Moderate
Sep18Moderate
Oct20Moderate
Nov20Moderate
Dec22Moderate
Location & terrain

Where is Piacenza?

Piacenza sits at 45.1°N, 9.7°E, 61 m above sea level, in Italy. The nearest listed city is Cremona, 27 km away.

Topography around Piacenza

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

Within 3 km, the terrain around Piacenza has only modest variations in elevation — a maximum elevation change of 32 m around an average of 55 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 181 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,814 m.

The land around Piacenza is covered by artificial surfaces (45%) and cropland (26%) within 3 km, cropland (68%) within 16 km, and cropland (42%) and trees (34%) within 80 km.

3 km
32 m
16 km
181 m
80 km
1,814 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Cremona 27 km · Lodi 32 km · Crema 35 km · Salsomaggiore Terme 35 km · Fidenza 35 km · Melegnano 45 km · Pavia 45 km · San Giuliano Milanese 49 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 Piacenza (45.0524°, 9.6934°, elevation 61 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).