Romano di Lombardia weather in September

In September, Romano di Lombardia sees average daytime highs of 23°C and overnight lows near 15°C, with 117 mm of rain across 9.9 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 2nd-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 47% 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 Romano di Lombardia's 3rd-clearest and 7th-windiest month. For the whole year in context, see Romano di Lombardia's year-round climate.

Daytime high
23°
4th warmest
Overnight low
15°
9th coldest
Rainfall
117 mm
9.9 wet days
Daylight
12 h 18 min
6:06 AM – 6:25 PM
Cloud cover
47%
3rd clearest
Wind
5 km/h
7th windiest
Solar energy
3.98 kWh/m²
Travel score
6.9
out of 10

Romano di Lombardia 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 26°C in the first days to 21°C by the end.

A typical September day in Romano di Lombardia reaches about 23°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 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°20°30°151015202530
Avg high (°C)Avg low (°C)
12617
22617
32617
42517
52516
62516
72516
82516
92516
102416
112415
122415
132415
142415
152315
162315
172315
182314
192314
202214
212214
222214
232214
242214
252213
262113
272113
282113
292113
302113

How September really feels in Romano di Lombardia

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.

Romano di Lombardia weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 536.51.48.91.0
Feb / 556.81.710.12.1
Mar14° / 678.80.811.64.3
Apr18° / 88120.113.25.5
May22° / 13°10312.3014.76.4
Jun26° / 17°10111.5015.46.5
Jul29° / 19°8210.3015.15.8
Aug28° / 19°10110.6013.96.1
Sep23° / 15°1179.9012.36.9
Oct18° / 10°11610.7010.75.5
Nov12° / 12010.90.59.32.9
Dec / 687.71.68.61.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% 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
27129
37030
47030
57030
67030
76931
86931
96931
106733
116733
126733
136634
146634
156535
166436
176436
186337
196337
206238
216238
226139
236040
246040
255941
265842
275743
285644
295545
305446

Chance of precipitation in September

Any precipitation

Romano di Lombardia gets around 117 mm of rain over 9.9 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 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
136
236
336
435
535
634
734
834
934
1034
1134
1234
1334
1434
1534
1634
1735
1835
1934
2034
2134
2234
2333
2433
2533
2633
2734
2834
2934
3035

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 (%)
123273812
225273711
326283610
42729359
52829348
62930347
73030337
83131326
93131326
103232315
113332315
123432304
133533294
143633283
153733273
163833263
173934252
184034242
194234232
204334221
214434211
224534191
234734181
244835171
254935160
265035150
275135140
285235130
295335120
305435110

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 5:47 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)
113.15:476:54
213.15:486:53
313.05:496:51
413.05:516:49
512.95:526:47
612.95:536:45
712.85:556:43
812.75:566:41
912.75:576:39
1012.65:586:37
1112.66:006:35
1212.56:016:33
1312.56:026:31
1412.46:036:29
1512.46:056:27
1612.36:066:25
1712.36:076:23
1812.26:086:21
1912.26:106:19
2012.16:116:17
2112.06:126:15
2212.06:136:13
2311.96:156:11
2411.96:166:09
2511.86:176:07
2611.86:196:05
2711.76:206:03
2811.76:216:01
2911.66:235:59
3011.56:245:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.98 kWh/m².

For context, solar energy here swings from a low near 1.23 kWh/m² to a high of 6.3 kWh/m² in July across the year — September's 3.98 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.4Bright
84.4Bright
94.3Bright
104.3Bright
114.2Bright
124.2Bright
134.1Bright
144.0Bright
154.0Moderate
163.9Moderate
173.9Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.7Moderate
223.6Moderate
233.5Moderate
243.5Moderate
253.4Moderate
263.4Moderate
273.3Moderate
283.3Moderate
293.2Moderate
303.2Moderate
Planning a trip in September

Is September a good time to visit Romano di Lombardia?

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

6.9
Sightseeing
1st-best month of the year
5.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Romano di Lombardia for sightseeing.

What to pack for Romano di Lombardia in September

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

In September, Romano di Lombardia sees daytime highs around 23°C and nights near 15°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Romano di Lombardia 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 Romano di Lombardia peaks around July 15 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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
Feb2Moderate
Mar4Moderate
Apr6High
May7High
Jun7Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

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

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2122 µg/m³Sep 1315 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb19Moderate
Mar23Moderate
Apr22Moderate
May18Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep15Moderate
Oct16Moderate
Nov15Moderate
Dec17Moderate
Location & terrain

Where is Romano di Lombardia?

Romano di Lombardia sits at 45.5°N, 9.8°E, 120 m above sea level, in Italy. The nearest listed city is Treviglio, 13 km away.

Topography around Romano di Lombardia

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

Within 3 km, the terrain around Romano di Lombardia has only modest variations in elevation — a maximum elevation change of 40 m around an average of 122 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 236 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,978 m.

The land around Romano di Lombardia is covered by cropland (59%) within 3 km, cropland (58%) within 16 km, and trees (35%) and cropland (34%) within 80 km.

3 km
40 m
16 km
236 m
80 km
2,978 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Treviglio 13 km · Palazzolo sull'Oglio 13 km · Chiari 14 km · Dalmine 18 km · Seriate 18 km · Crema 18 km · Cassano d'Adda 19 km · Bergamo 21 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 Romano di Lombardia (45.5208°, 9.7544°, elevation 120 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).