Domodossola weather in September

In September, Domodossola sees average daytime highs of 16°C and overnight lows near 8°C, with 357 mm of precipitation across 17.2 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 17°C in the first days to 13°C by the end. The sky is clear or mostly clear about 29% 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 Domodossola's 8th-clearest and 7th-windiest month. For the whole year in context, see Domodossola's year-round climate.

Daytime high
16°
4th warmest
Overnight low
9th coldest
Precipitation
357 mm
17.2 wet days
Daylight
12 h 18 min
6:12 AM – 6:31 PM
Cloud cover
61%
8th clearest
Wind
4 km/h
7th windiest
Solar energy
3.91 kWh/m²
Travel score
3.9
out of 10

Domodossola is chief town of the homonym municipality.

Air quality
Moderate
PM2.5 13.6 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 17°C in the first days to 13°C by the end.

A typical September day in Domodossola reaches about 16°C in the afternoon and slips back to 8°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 19°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1189
2189
3179
4179
5179
6179
7179
8178
9178
10168
11168
12168
13168
14168
15168
16158
17157
18157
19157
20157
21157
22147
23147
24147
25147
26146
27146
28146
29136
30136

How September really feels in Domodossola

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.

Domodossola 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 / -7°10310.7118.90.0
Feb / -6°10410.710.7100.0
Mar / -3°15912.79.711.60.5
Apr / 25616.37.613.31.6
May14° / 35721.11.914.73.0
Jun18° / 39621.60.115.54.2
Jul20° / 11°40222.10.115.24.7
Aug19° / 11°43721.40144.7
Sep16° / 35717.20.212.33.9
Oct11° / 326162.810.72.2
Nov / -2°27114.18.79.20.3
Dec / -6°11010.710.28.50.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15050
24951
35050
45050
54951
64951
74951
84951
94951
104852
114852
124753
134753
144555
154555
164456
174357
184357
194258
204159
214159
223961
233961
243961
253763
263763
273664
283664
293664
303664

Chance of precipitation in September

Any precipitationSnow

Domodossola gets around 357 mm of rain and snow over 17.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 59% and peaks near 63% on the wettest days, and about 0 day brings snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1630
2620
3610
4610
5600
6600
7600
8590
9590
10590
11590
12590
13590
14590
15580
16580
17580
18581
19581
20571
21571
22571
23572
24572
25572
26572
27582
28583
29583
30583

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
18812
29010
3919
4928
5937
6946
7955
8955
9964
10964
11973
12973
13973
14982
15982
16982
17982
18991
19991
20991
21991
22991
231000
241000
251000
261000
271000
281000
291000
301000

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 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 5:52 AM to 6:30 AM, and sunset from 7:01 PM to 6:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:527:01
213.15:536:59
313.05:556:57
413.05:566:55
512.95:576:53
612.95:596:51
712.86:006:49
812.86:016:47
912.76:026:45
1012.76:046:43
1112.66:056:41
1212.56:066:39
1312.56:086:37
1412.46:096:35
1512.46:106:33
1612.36:126:31
1712.36:136:29
1812.26:146:27
1912.26:156:25
2012.16:176:23
2112.06:186:21
2212.06:196:19
2311.96:216:16
2411.96:226:14
2511.86:236:12
2611.86:256:10
2711.76:266:08
2811.76:276:06
2911.66:296:04
3011.56:306:02

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.91 kWh/m².

For context, solar energy here swings from a low near 1.35 kWh/m² to a high of 6.11 kWh/m² in June across the year — September's 3.91 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.5Bright
44.5Bright
54.5Bright
64.4Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.1Bright
124.1Bright
134.0Bright
144.0Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.7Moderate
203.6Moderate
213.6Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.3Moderate
273.3Moderate
283.2Moderate
293.2Moderate
303.1Moderate
Planning a trip in September

Is September a good time to visit Domodossola?

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

3.9
Sightseeing
4th-best month of the year
0.5
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Domodossola.

What to pack for Domodossola in September

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

In September, Domodossola sees daytime highs around 16°C and nights near 8°C. Pack rain gear. Worth having: a warm layer. About 17 days see rain.

rain geara warm layer

UV index in Domodossola 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 Domodossola peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 15UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr7High
May7Very high
Jun8Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Domodossola 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 Domodossola 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 Domodossola's WHO annual average of 13.6 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 2116 µg/m³Nov 1311 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar17Moderate
Apr16Moderate
May14Moderate
Jun16Moderate
Jul13Moderate
Aug12Moderate
Sep12Good
Oct11Good
Nov11Good
Dec12Good
Location & terrain

Where is Domodossola?

Domodossola sits at 46.1°N, 8.3°E, 272 m above sea level, in Italy. The nearest listed city is Pallanza-Intra-Suna, 29 km away.

Topography around Domodossola

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

Within 3 km, the terrain around Domodossola has large variations in elevation — a maximum elevation change of 1,033 m around an average of 430 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,656 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,398 m.

The land around Domodossola is covered by trees (62%) within 3 km, trees (71%) and grassland (23%) within 16 km, and trees (46%) and grassland (27%) within 80 km.

3 km
1,033 m
16 km
2,656 m
80 km
4,398 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
September weather nearby: Pallanza-Intra-Suna 29 km · Verbania 29 km · Locarno 39 km · Zermatt 43 km · Borgomanero 48 km · Varese 53 km · Lugano 53 km · Bellinzona 56 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 Domodossola (46.1165°, 8.2931°, elevation 272 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).