Climate and average weather in San Giuliano Milanese

In San Giuliano Milanese, the summers are hot, showery, and mostly clear and the winters are cold, snowy, and partly cloudy.

Best: early April to late June

Over the course of the year, the temperature in San Giuliano Milanese typically varies from 1°C to 30°C, and is rarely below -3°C or above 35°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit San Giuliano Milanese for warm-weather activities are from early April to late June and mid August to mid October.

Hottest
Jul
30°
Coldest
Jan
Wettest
Nov
141 mm
Driest
Feb
57 mm
Rain / yr
1130 mm
112 wet days
Daylight
8.5–15.5 h
shortest–longest
Elevation
98 m
45.4°N
Clearest
Jul
42% cloud

San Giuliano Milanese is chief town of the homonym municipality.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

San Giuliano Milanese weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early April to late June.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in San Giuliano Milanese, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.6 months, from May 26 to September 12, with daily high temperatures above 25°C. The hottest month of the year in San Giuliano Milanese is July, with an average high of 30°C and low of 20°C.

The cool season lasts 3.4 months, from November 17 to February 28, with daily high temperatures below 12°C. The coldest month of the year in San Giuliano Milanese is January, with an average low of 1°C and high of 7°C.

Days typically run about 8°C warmer than nights, with the widest day–night swing (around 10°C) in July.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan71
Feb102
Mar156
Apr189
May2314
Jun2718
Jul3020
Aug2920
Sep2416
Oct1811
Nov126
Dec82

How hot and cold San Giuliano Milanese really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -1°C (around January 26), with roughly 63 freezing days a year (feels-like at or below 0°C), worst in January.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan77-11
Feb101002
Mar151546
Apr181899
May23231414
Jun27271818
Jul30302020
Aug29292020
Sep24241616
Oct18181111
Nov121256
Dec8802

Average hourly temperature in San Giuliano Milanese

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on July afternoons, near 30°C, and coldest before dawn in January, near C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

San Giuliano Milanese weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 596.71.48.91.2
Feb10° / 576.61.510.12.4
Mar15° / 7180.611.64.7
Apr18° / 96110.113.25.8
May23° / 14°10711.9014.76.5
Jun27° / 18°10110.3015.46.3
Jul30° / 20°769.4015.15.3
Aug29° / 20°10610.3013.95.7
Sep24° / 16°1199.5012.37.0
Oct18° / 11°12510.1010.75.7
Nov12° / 14110.70.49.33.1
Dec / 737.41.68.61.3

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

San Giuliano Milanese gets about 1130 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.5 months, from around Mar 29 to Jul 14, peaking in May at about 42% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 21.

November is the wettest month by volume, with 141 mm over about 11 wet days; February is the driest, with 57 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetMay 3 · 42%Jan 21 · 21%
Rain on a day (%)Rain days
Jan227
Feb237
Mar268
Apr3611
May3812
Jun3510
Jul309
Aug3210
Sep3310
Oct3310
Nov3411
Dec247

Monthly rainfall

Over a full year, San Giuliano Milanese collects about 1130 mm of rain across 112 wet days — roughly 94 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 141 mm, while February is the driest at just 57 mm. The three wettest months alone bring about 34% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec595771961071017610611912514173
Rainfall (mm)Rain daysSnow days
Jan5971
Feb5772
Mar7181
Apr96110
May107120
Jun101100
Jul7690
Aug106100
Sep119100
Oct125100
Nov141110
Dec7372

Snow in San Giuliano Milanese

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

San Giuliano Milanese averages about 6 snowy days a year. Snow season runs roughly Nov 20 to Mar 17 — about 3.9 months.

February is snowiest, with roughly 1.6 days of snow and an estimated 7 cm of snowfall. Over the year that adds up to an estimated 25 cm of snow.

01234JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonFeb 3
Snow daysSnowfall (cm)
Jan15
Feb27
Mar13
Apr00
May00
Jun00
Jul00
Aug00
Sep00
Oct00
Nov01
Dec29

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In San Giuliano Milanese, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around May 26 and lasts for 4.0 months, ending around September 24. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 74% of the time on average.

The cloudier part of the year begins around September 25 and lasts for 4.5 months, ending around February 7. The cloudiest month is November, when it is overcast or mostly cloudy 56% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecJul 23 · 76%Nov 4 · 43%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5347
Feb5644
Mar5644
Apr5149
May5050
Jun6337
Jul7426
Aug7228
Sep6238
Oct4753
Nov4456
Dec5050

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 16, brings about 15 h 30 min of light; the shortest, around December 16, only 8 h 30 min — a swing of roughly 7 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan8.98:054:59
Feb10.17:355:40
Mar11.66:446:21
Apr13.25:457:01
May14.74:597:39
Jun15.44:408:07
Jul15.14:548:03
Aug13.95:297:25
Sep12.36:086:27
Oct10.76:475:29
Nov9.37:304:46
Dec8.68:034:35

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

San Giuliano Milanese averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 17 days.

The sunnier stretch runs 3.3 months, from around Jun 16 to Sep 22. The sunniest month is July, with roughly 16 sunny days (bright).

The greyest month is May, down near 10 sunny days — about 37% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 2517 daysMay 39 days
Sunny daysSky
Jan13Mixed
Feb12Mixed
Mar14Mixed
Apr11Mixed
May10Mixed
Jun13Mixed
Jul16Bright
Aug16Bright
Sep14Mixed
Oct11Mixed
Nov10Mixed
Dec12Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In San Giuliano Milanese, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.0 months, from around May 30 to September 27. The muggiest month is August, when the air feels humid, muggy or worse about 68% of the time.

The most comfortable stretch runs from around September 28 to May 29, and April is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 12 · 100%Aug 8 · 28%muggyhumiddrycomfortablecomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr973000
May6826600
Jun26333191
Jul152238241
Aug122042251
Sep39282760
Oct7421500
Nov982000
Dec1000000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Wind in San Giuliano Milanese is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmApr 1 · 7 km/hDec 15 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb6calm
Mar7calm
Apr7calm
May7calm
Jun6calm
Jul6calm
Aug6calm
Sep6calm
Oct6calm
Nov6calm
Dec5calm

Best time to visit San Giuliano Milanese

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in San Giuliano Milanese throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around mid April, San Giuliano Milanese is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best times of year to visit San Giuliano Milanese for general outdoor tourist activities run from early April to late June and again from mid August to mid October, with a peak score in the second week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationSep 12 · 7.1

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan1.2poor
Feb2.4poor
Mar4.7fair
Apr5.8good
May6.5good
Jun6.3good
Jul5.4fair
Aug5.7good
Sep6.9good
Oct5.7good
Nov3.1poor
Dec1.3poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit San Giuliano Milanese for hot-weather activities is from late May to mid September, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 22 · 7.3

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for San Giuliano Milanese, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around July (highs near 30°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 7°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, San Giuliano Milanese sees daytime highs around 30°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

UV index (midday) in San Giuliano Milanese by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in San Giuliano Milanese 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

Average hourly UV index in San Giuliano Milanese

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in July the burn window is concentrated in the middle of the day: about 8 hours a day reach index 3 (protection recommended), and 4.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar40
Apr6.52
May7.53
Jun84
Jul84.5
Aug72.5
Sep50
Oct00
Nov00
Dec00

Air quality in San Giuliano Milanese by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in San Giuliano Milanese is worst in March — around 21 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2221 µg/m³Nov 1414 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb17Moderate
Mar21Moderate
Apr20Moderate
May17Moderate
Jun20Moderate
Jul17Moderate
Aug15Moderate
Sep14Moderate
Oct14Moderate
Nov14Moderate
Dec15Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayReliably frost-free (≥90%)

San Giuliano Milanese is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about March 6 to November 20 (260 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freeMar 690%Nov 2090%
Frost-free chance (%)Frost nights
Jan6131
Feb7228
Mar956
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov9311
Dec6831

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. San Giuliano Milanese banks about 2,126 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

05001,0001,5002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar19
Apr117
May262
Jun378
Jul464
Aug447
Sep292
Oct138
Nov10
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

San Giuliano Milanese receives about 3.8 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.2 and 6.4 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 16 to Sep 18. The brightest month is June, averaging about 6.3 kWh/m² (intense).

The dimmest month is December, down near 1.2 kWh/m² — roughly 80% less than the June peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 276.4 kWhDec 201.2 kWh
Solar energy (kWh/m²)Level
Jan1.5Dim
Feb2.4Moderate
Mar3.8Moderate
Apr4.8Bright
May5.7Bright
Jun6.3Intense
Jul6.4Intense
Aug5.4Bright
Sep4.0Moderate
Oct2.4Moderate
Nov1.5Dim
Dec1.2Dim

Where is San Giuliano Milanese?

San Giuliano Milanese sits at 45.4°N, 9.3°E, 98 m above sea level, in Italy. The nearest listed city is San Donato Milanese, 3.0 km away.

Topography around San Giuliano Milanese

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

Within 3 km, the terrain around San Giuliano Milanese has only modest variations in elevation — a maximum elevation change of 32 m around an average of 95 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 102 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,476 m.

The land around San Giuliano Milanese is covered by cropland (46%) and artificial surfaces (24%) within 3 km, cropland (47%) and artificial surfaces (25%) within 16 km, and cropland (41%) and trees (33%) within 80 km.

3 km
32 m
16 km
102 m
80 km
2,476 m
treesgrasslandcroplandartificial surfaceswater
Nearby: San Donato Milanese 3.0 km · Melegnano 5.0 km · Rozzano 11 km · Segrate 11 km · Milan 11 km · Brera 12 km · Pioltello 12 km · Chinatown 13 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 San Giuliano Milanese (45.394°, 9.2911°, elevation 98 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).