Castelfranco Veneto weather in September

In September, Castelfranco Veneto sees average daytime highs of 23°C and overnight lows near 14°C, with 119 mm of rain across 11.1 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 25°C in the first days to 21°C by the end. The sky is clear or mostly clear about 38% 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 30 min by month's end. Set against the rest of the year, September is Castelfranco Veneto's 3rd-clearest and 4th-windiest month. For the whole year in context, see Castelfranco Veneto's year-round climate.

Daytime high
23°
4th warmest
Overnight low
14°
9th coldest
Rainfall
119 mm
11.1 wet days
Daylight
12 h 18 min
5:57 AM – 6:16 PM
Cloud cover
52%
3rd clearest
Wind
5 km/h
4th windiest
Solar energy
3.85 kWh/m²
Travel score
6.7
out of 10

Castelfranco Veneto 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 25°C in the first days to 21°C by the end.

A typical September day in Castelfranco Veneto reaches about 23°C in the afternoon and slips back to 14°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 27°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)
12616
22616
32516
42516
52516
62516
72515
82515
92415
102415
112415
122415
132415
142414
152314
162314
172314
182314
192314
202214
212214
222213
232213
242213
252213
262113
272113
282113
292113
302112

How September really feels in Castelfranco Veneto

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.

Castelfranco Veneto 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 / 597.11.98.91.0
Feb / 607.92.210.11.9
Mar13° / 8410.21.211.63.9
Apr17° / 10513.50.313.35.1
May22° / 13°11913.6014.76.1
Jun26° / 16°9212.9015.46.4
Jul28° / 18°7510.9015.16.0
Aug28° / 18°8110.7013.96.1
Sep23° / 14°11911.1012.36.7
Oct18° / 10°12710.7010.75.6
Nov12° / 13810.50.49.33.1
Dec / 8381.68.61.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 42%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16436
26436
36436
46436
56436
66436
76436
86436
96436
106436
116436
126337
136337
146238
156139
166040
175941
185842
195743
205644
215545
225446
235347
245347
255149
265050
274852
284852
294852
304654

Chance of precipitation in September

Any precipitation

Castelfranco Veneto gets around 119 mm of rain over 11.1 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 38% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
138
238
338
438
538
638
737
837
937
1037
1137
1237
1337
1437
1537
1637
1737
1837
1938
2038
2138
2237
2338
2438
2538
2638
2738
2839
2939
3040

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 38% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
121303811
222313710
32431359
42532348
52733338
62833327
72934316
83034306
93134295
103234285
113334285
123534274
133635264
143735253
153835243
163935233
174035222
184135212
194236212
204436201
214536191
224636181
234736171
244836161
254936150
264936140
275036140
285235130
295235130
305434120

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 h 06 min at the start of September to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over September. Sunrise moves from 5:38 AM to 6:15 AM, and sunset from 6:46 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:386:46
213.15:396:44
313.05:416:42
413.05:426:40
512.95:436:38
612.95:446:36
712.85:466:34
812.85:476:32
912.75:486:30
1012.65:496:28
1112.65:516:26
1212.55:526:24
1312.55:536:22
1412.45:556:20
1512.45:566:18
1612.35:576:16
1712.35:586:14
1812.26:006:12
1912.26:016:10
2012.16:026:08
2112.06:046:06
2212.06:056:04
2311.96:066:02
2411.96:076:00
2511.86:095:58
2611.86:105:56
2711.76:115:54
2811.76:135:52
2911.66:145:50
3011.56:155:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.85 kWh/m².

For context, solar energy here swings from a low near 1.26 kWh/m² to a high of 6.07 kWh/m² in July across the year — September's 3.85 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.4Bright
54.4Bright
64.3Bright
74.3Bright
84.2Bright
94.2Bright
104.1Bright
114.1Bright
124.0Bright
134.0Moderate
143.9Moderate
153.9Moderate
163.8Moderate
173.7Moderate
183.7Moderate
193.6Moderate
203.6Moderate
213.5Moderate
223.5Moderate
233.4Moderate
243.4Moderate
253.3Moderate
263.3Moderate
273.2Moderate
283.2Moderate
293.1Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Castelfranco Veneto?

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

6.7
Sightseeing
1st-best month of the year
5.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Castelfranco Veneto for sightseeing.

What to pack for Castelfranco Veneto in September

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

In September, Castelfranco Veneto sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes and rain gear. About 11 days see rain.

light clothesrain gear

Sea temperature near Castelfranco Veneto 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 48 km away) is warmest in August at about 26°C and coldest in February near 9°C.

It's comfortable for a long swim from May 28 to Oct 7 — about 4.4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb9Bracing
Mar10Bracing
Apr14Bracing
May18Cool
Jun23Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Castelfranco Veneto 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 Castelfranco Veneto peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. 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 15UV 8Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar4Moderate
Apr7High
May7High
Jun7Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Castelfranco Veneto 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 Castelfranco Veneto is worst in January — around 24 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (September, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1724 µg/m³Sep 1415 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb21Moderate
Mar23Moderate
Apr22Moderate
May18Moderate
Jun19Moderate
Jul17Moderate
Aug16Moderate
Sep14Moderate
Oct17Moderate
Nov17Moderate
Dec20Moderate
Location & terrain

Where is Castelfranco Veneto?

Castelfranco Veneto sits at 45.7°N, 11.9°E, 43 m above sea level, in Italy. The nearest listed city is Montebelluna, 15 km away.

Topography around Castelfranco Veneto

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

Within 3 km, the terrain around Castelfranco Veneto has only modest variations in elevation — a maximum elevation change of 22 m around an average of 42 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 412 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,164 m.

The land around Castelfranco Veneto is covered by cropland (38%), artificial surfaces (26%) and grassland (22%) within 3 km, cropland (49%) and grassland (23%) within 16 km, and trees (32%), cropland (28%) and grassland (20%) within 80 km.

3 km
22 m
16 km
412 m
80 km
3,164 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Montebelluna 15 km · Bassano del Grappa 19 km · Mirano 24 km · Treviso 24 km · Lancenigo-Villorba 26 km · Spinea-Orgnano 27 km · Mogliano Veneto 28 km · Arcella 28 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 Castelfranco Veneto (45.6715°, 11.9276°, elevation 43 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).