Climate and average weather in Portogruaro

In Portogruaro, the summers are humid, hot, showery, and mostly clear and the winters are cold, snowy, and partly cloudy.

Best: mid April to late October

Over the course of the year, the temperature in Portogruaro typically varies from 2°C to 28°C, and is rarely below -3°C or above 34°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Portogruaro for warm-weather activities is from mid April to late October.

Hottest
Jul
28°
Coldest
Jan
Wettest
Nov
147 mm
Driest
Jan
63 mm
Rain / yr
1208 mm
114 wet days
Daylight
8.5–15.5 h
shortest–longest
Elevation
5 m
45.8°N
Clearest
Aug
42% cloud

Portogruaro is chief town of the homonym municipality.

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

Portogruaro 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 mid April to late October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Portogruaro, 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 29 to September 13, with daily high temperatures above 24°C. The hottest month of the year in Portogruaro is July, with an average high of 28°C and low of 20°C.

The cool season lasts 3.5 months, from November 19 to March 5, with daily high temperatures below 12°C. The coldest month of the year in Portogruaro is January, with an average low of 2°C and high of 8°C.

Days typically run about 7°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan82
Feb92
Mar136
Apr1810
May2214
Jun2618
Jul2820
Aug2820
Sep2416
Oct1812
Nov137
Dec83

How hot and cold Portogruaro 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 27), with roughly 61 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)
Jan88-12
Feb9902
Mar131346
Apr1818910
May22221414
Jun26261818
Jul29282020
Aug29282020
Sep23241616
Oct18181212
Nov131367
Dec8803

Average hourly temperature in Portogruaro

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 28°C, and coldest before dawn in January, near C.

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

Portogruaro 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 / 636.918.91.3
Feb / 646.6110.12.1
Mar13° / 798.30.411.64.0
Apr18° / 10°9811.2013.35.5
May22° / 14°11211.6014.76.5
Jun26° / 18°9911.2015.56.6
Jul28° / 20°799.4015.26.3
Aug28° / 20°1029.4013.96.2
Sep24° / 16°14410.7012.36.8
Oct18° / 12°13510.4010.75.8
Nov13° / 14710.40.29.33.4
Dec / 867.60.98.51.6

Chance of rain

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

Portogruaro gets about 1208 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 3.6 months, from around Mar 28 to Jul 14, peaking in June at about 40% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 10.

November is the wettest month by volume, with 147 mm over about 10 wet days; January is the driest, with 63 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 6 · 40%Jan 10 · 22%
Rain on a day (%)Rain days
Jan237
Feb247
Mar268
Apr3811
May3812
Jun3711
Jul309
Aug309
Sep3711
Oct3310
Nov3410
Dec258

Monthly rainfall

Over a full year, Portogruaro collects about 1208 mm of rain across 114 wet days — roughly 101 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 147 mm, while January is the driest at just 63 mm. The three wettest months alone bring about 35% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec63647998112997910214413514786
Rainfall (mm)Rain daysSnow days
Jan6371
Feb6471
Mar7980
Apr98110
May112120
Jun99110
Jul7990
Aug10290
Sep144110
Oct135100
Nov147100
Dec8681

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Portogruaro, 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 23 and lasts for 4.1 months, ending around September 24. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 72% of the time on average.

The cloudier part of the year begins around September 25 and lasts for 7.9 months, ending around May 22. The cloudiest month is November, when it is overcast or mostly cloudy 57% 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 22 · 73%Nov 12 · 42%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4951
Feb5050
Mar5248
Apr5050
May5248
Jun6436
Jul7228
Aug7129
Sep6139
Oct4951
Nov4357
Dec4951

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 12, brings about 15 h 30 min of light; the shortest, around January 1, 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)
Jan8.97:524:43
Feb10.17:215:25
Mar11.66:306:06
Apr13.35:306:48
May14.74:437:26
Jun15.54:247:54
Jul15.24:387:50
Aug13.95:147:11
Sep12.35:536:12
Oct10.76:335:14
Nov9.37:174:31
Dec8.57:504:20

Sunny days

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

Portogruaro averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 9 and 16 days.

The sunnier stretch runs 3.4 months, from around Jun 14 to Sep 24. The sunniest month is July, with roughly 16 sunny days (bright).

The greyest month is November, down near 9 sunny days — about 40% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 2316 daysNov 89 days
Sunny daysSky
Jan12Mixed
Feb11Mixed
Mar12Mixed
Apr11Mixed
May11Mixed
Jun12Mixed
Jul16Bright
Aug16Bright
Sep13Mixed
Oct11Mixed
Nov9Mixed
Dec11Mixed

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 Portogruaro, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.3 months, from around May 24 to October 1. The muggiest month is August, when the air feels humid, muggy or worse about 82% of the time.

The most comfortable stretch runs from around October 2 to May 23, 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 6 · 100%Aug 4 · 13%oppressivemuggycomfortablehumiddrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr936000
May48351430
Jun122338244
Jul412324111
Aug41433418
Sep262932121
Oct66231110
Nov955000
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 Portogruaro is steady company: average speeds sit near 8 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 2 · 8 km/hJan 10 · 7 km/h
Wind speed (km/h)Feels
Jan7calm
Feb8calm
Mar8calm
Apr8calm
May8calm
Jun8calm
Jul7calm
Aug8calm
Sep8calm
Oct8calm
Nov8calm
Dec8calm

Best time to visit Portogruaro

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late April, Portogruaro 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 time of year to visit Portogruaro for general outdoor tourist activities is from mid April to late October, with a peak score in the second week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationSep 10 · 6.9

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
Jan1.3poor
Feb2.1poor
Mar4.0fair
Apr5.5fair
May6.5good
Jun6.7good
Jul6.3good
Aug6.2good
Sep6.7good
Oct5.8good
Nov3.4poor
Dec1.6poor

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 Portogruaro for hot-weather activities is from mid June to mid September, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 28 · 7.6

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 Portogruaro, 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 28°C), the essentials are light clothes, rain gear and sun protection. In the cold season around January (highs near 8°C), pack a warm layer and a heavy coat.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Portogruaro sees daytime highs around 28°C and nights near 20°C. Pack light clothes and sun protection. Worth having: rain gear. About 9 days see rain.

Sea temperature near Portogruaro

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 18 km away) is warmest in August at about 26°C and coldest in February near 10°C.

It's comfortable for a long swim from May 30 to Oct 9 — about 4.4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar10Bracing
Apr13Bracing
May18Cool
Jun23Refreshing
Jul25Warm
Aug26Warm
Sep23Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index (midday) in Portogruaro 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 Portogruaro 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
Jun8Very high
Jul8Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Average hourly UV index in Portogruaro

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 8.5 hours a day reach index 3 (protection recommended), and 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
May72.5
Jun84
Jul8.55
Aug73
Sep50
Oct00
Nov00
Dec00

Air quality in Portogruaro 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 Portogruaro is worst in March — around 20 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (September, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1819 µg/m³Sep 1612 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb18Moderate
Mar20Moderate
Apr18Moderate
May17Moderate
Jun17Moderate
Jul16Moderate
Aug14Moderate
Sep12Moderate
Oct14Moderate
Nov13Moderate
Dec16Moderate
Almanac & agriculture

Growing season

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

Portogruaro is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about March 3 to November 28 (271 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freeMar 390%Nov 2890%
Frost-free chance (%)Frost nights
Jan6931
Feb7628
Mar963
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov961
Dec7731

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. Portogruaro banks about 2,072 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
Mar8
Apr108
May256
Jun361
Jul440
Aug435
Sep292
Oct153
Nov19
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.

Portogruaro 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 5.9 months, from around Mar 22 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 81% less than the June peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 296.4 kWhDec 221.2 kWh
Solar energy (kWh/m²)Level
Jan1.4Dim
Feb2.3Moderate
Mar3.5Moderate
Apr4.8Bright
May5.7Bright
Jun6.3Intense
Jul6.3Intense
Aug5.5Bright
Sep4.0Moderate
Oct2.5Moderate
Nov1.5Dim
Dec1.2Dim

Where is Portogruaro?

Portogruaro sits at 45.8°N, 12.8°E, 5 m above sea level, in Italy. The nearest listed city is Pordenone, 24 km away.

Topography around Portogruaro

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

Within 3 km, the terrain around Portogruaro has only modest variations in elevation — a maximum elevation change of 20 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 48 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,582 m.

The land around Portogruaro is covered by cropland (41%), grassland (27%) and artificial surfaces (24%) within 3 km, cropland (60%) and grassland (25%) within 16 km, and trees (31%), water (27%) and cropland (20%) within 80 km.

3 km
20 m
16 km
48 m
80 km
2,582 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Pordenone 24 km · Cordenons 25 km · Oderzo 27 km · San Donà di Piave 27 km · Sacile 32 km · Conegliano 43 km · Udine 44 km · Lancenigo-Villorba 46 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 Portogruaro (45.7807°, 12.8405°, elevation 5 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).