Varese weather in September

In September, Varese sees average daytime highs of 22°C and overnight lows near 15°C, with 163 mm of rain across 10.1 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 20°C by the end. The sky is clear or mostly clear about 42% 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 Varese's 3rd-clearest and 8th-windiest month. For the whole year in context, see Varese's year-round climate.

Daytime high
22°
4th warmest
Overnight low
15°
9th coldest
Rainfall
163 mm
10.1 wet days
Daylight
12 h 18 min
6:09 AM – 6:29 PM
Cloud cover
50%
3rd clearest
Wind
5 km/h
8th windiest
Solar energy
3.81 kWh/m²
Travel score
6.7
out of 10
Air quality
Elevated
PM2.5 18.8 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 25°C in the first days to 20°C by the end.

A typical September day in Varese reaches about 22°C in the afternoon and slips back to 15°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 26°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)
12517
22517
32517
42417
52416
62416
72416
82416
92416
102316
112316
122315
132315
142315
152215
162215
172215
182215
192215
202114
212114
222114
232114
242114
252014
262014
272014
282013
292013
302013

How September really feels in Varese

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.

Varese 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 / 677.22.58.91.0
Feb / 656.82.310.11.9
Mar13° / 878.21.111.64.1
Apr17° / 12911.60.213.35.3
May21° / 13°14513014.76.1
Jun25° / 17°13511.5015.56.6
Jul28° / 19°999.8015.26.4
Aug27° / 19°13111.1013.96.5
Sep22° / 15°16310.1012.36.7
Oct17° / 11°18111010.75.2
Nov11° / 18710.50.79.32.8
Dec / 807.42.38.51.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% 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 41%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16634
26634
36535
46634
56634
66634
76535
86535
96535
106436
116337
126337
136238
146139
156040
166040
175842
185842
195644
205644
215545
225446
235446
245446
255347
265248
275248
285149
295050
305050

Chance of precipitation in September

Any precipitation

Varese gets around 163 mm of rain over 10.1 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
234
334
434
534
634
734
834
934
1034
1134
1234
1334
1434
1535
1635
1735
1835
1935
2035
2135
2235
2335
2435
2535
2635
2735
2836
2936
3037

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 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13126377
23226356
33427346
43528325
53629315
63729304
73730294
83830293
93930283
104030282
114030272
124130272
134231261
144331251
154431241
164431241
174532231
184632210
194733200
204833190
214934180
225034160
235035150
245235130
255236120
265336110
275436100
28563680
29563680
30583570

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 5:50 AM to 6:28 AM, and sunset from 6:59 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.15:506:59
213.15:526:57
313.05:536:55
413.05:546:53
512.95:556:51
612.95:576:49
712.85:586:47
812.85:596:45
912.76:016:43
1012.66:026:41
1112.66:036:39
1212.56:046:37
1312.56:066:35
1412.46:076:33
1512.46:086:31
1612.36:096:29
1712.36:116:27
1812.26:126:25
1912.26:136:22
2012.16:156:20
2112.06:166:18
2212.06:176:16
2311.96:196:14
2411.96:206:12
2511.86:216:10
2611.86:226:08
2711.76:246:06
2811.76:256:04
2911.66:266:02
3011.56:286:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.81 kWh/m².

For context, solar energy here swings from a low near 1.21 kWh/m² to a high of 6.18 kWh/m² in July across the year — September's 3.81 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.5Bright
54.4Bright
64.3Bright
74.3Bright
84.2Bright
94.2Bright
104.1Bright
114.1Bright
124.0Bright
133.9Moderate
143.9Moderate
153.8Moderate
163.8Moderate
173.7Moderate
183.6Moderate
193.6Moderate
203.5Moderate
213.5Moderate
223.4Moderate
233.4Moderate
243.3Moderate
253.3Moderate
263.2Moderate
273.1Moderate
283.1Moderate
293.0Moderate
303.0Moderate
Planning a trip in September

Is September a good time to visit Varese?

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
4.8
Beach & pool
4th-best month of the year

September is a reasonable time to visit Varese for sightseeing.

What to pack for Varese in September

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

In September, Varese sees daytime highs around 22°C and nights near 15°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Varese 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 Varese peaks around July 16 at about 8 (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 8Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun7Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Varese 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 Varese is worst in March — around 23 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Seasonal pattern from CAMS reanalysis, scaled to Varese's WHO annual average of 18.8 µg/m³.

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2223 µg/m³Nov 1415 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb19Moderate
Mar23Moderate
Apr23Moderate
May19Moderate
Jun22Moderate
Jul19Moderate
Aug17Moderate
Sep16Moderate
Oct16Moderate
Nov15Moderate
Dec16Moderate
Location & terrain

Where is Varese?

Varese sits at 45.8°N, 8.8°E, 382 m above sea level, in Italy. The nearest listed city is Malnate, 5.0 km away.

Topography around Varese

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

Within 3 km, the terrain around Varese has significant variations in elevation — a maximum elevation change of 266 m around an average of 374 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,041 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,458 m.

The land around Varese is covered by trees (56%) and artificial surfaces (32%) within 3 km, trees (66%) within 16 km, and trees (46%) and cropland (20%) within 80 km.

3 km
266 m
16 km
1,041 m
80 km
4,458 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
September weather nearby: Malnate 5.0 km · Tradate 14 km · Cassano Magnago 17 km · Gallarate 18 km · Como 20 km · Busto Arsizio 23 km · Lugano 24 km · Pallanza-Intra-Suna 24 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 Varese (45.8206°, 8.8251°, elevation 382 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).