Portogruaro weather in May

In May, Portogruaro sees average daytime highs of 22°C and overnight lows near 14°C, with 112 mm of rain across 11.6 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 24°C by the end. The sky is clear or mostly clear about 35% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 06 min at the start of May to 15 h 12 min by month's end. Set against the rest of the year, May is Portogruaro's 6th-clearest and 5th-windiest month. For the whole year in context, see Portogruaro's year-round climate.

Daytime high
22°
5th warmest
Overnight low
14°
8th coldest
Rainfall
112 mm
11.6 wet days
Daylight
14 h 42 min
4:43 AM – 7:26 PM
Cloud cover
55%
6th clearest
Wind
8 km/h
5th windiest
Solar energy
5.74 kWh/m²
Travel score
6.5
out of 10

Portogruaro is chief town of the homonym municipality.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 24°C by the end.

A typical May day in Portogruaro reaches about 22°C in the afternoon and slips back to 14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12012
22013
32013
42113
52113
62113
72113
82113
92114
102114
112214
122214
132214
142214
152214
162214
172215
182215
192315
202315
212315
222315
232315
242315
252316
262416
272416
282416
292416
302416
312416

How May really feels in Portogruaro

Once humidity and wind are folded in, May 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

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Portogruaro weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

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

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34852
44852
54951
64951
74852
84852
94852
104951
115050
125050
135149
145149
155149
165248
175347
185347
195446
205545
215545
225644
235743
245743
255743
265743
275743
285743
295644
305644
315644

Chance of precipitation in May

Any precipitation

Portogruaro gets around 112 mm of rain over 11.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
241
341
441
541
641
741
841
940
1040
1139
1239
1338
1437
1537
1636
1736
1835
1935
2035
2134
2234
2334
2434
2535
2635
2736
2837
2938
3039
3139

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1742420
2732520
3702730
4692830
5672940
6653050
7623260
8623260
9603370
10583480
11563590
125436100
135237110
145138110
154839121
164640131
174540141
184341151
194241162
204041172
213941182
223841183
233740194
243540204
253440225
263239236
273038247
282937268
292736289
3025353010
3124343211

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 06 min at the start of May to 15 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over May. Sunrise moves from 5:04 AM to 4:29 AM, and sunset from 7:07 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:047:07
214.15:037:09
314.25:017:10
414.25:007:11
514.24:587:13
614.34:577:14
714.34:557:15
814.44:547:17
914.44:527:18
1014.54:517:19
1114.54:507:20
1214.64:487:22
1314.64:477:23
1414.64:467:24
1514.74:457:25
1614.74:437:26
1714.84:427:28
1814.84:417:29
1914.84:407:30
2014.94:397:31
2114.94:387:32
2214.94:377:33
2315.04:367:34
2415.04:357:36
2515.04:347:37
2615.14:337:38
2715.14:327:39
2815.14:327:40
2915.24:317:41
3015.24:307:42
3115.24:297:43

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.74 kWh/m².

For context, solar energy here swings from a low near 1.2 kWh/m² to a high of 6.33 kWh/m² in July across the year — May's 5.74 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.5Bright
95.5Bright
105.5Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.9Bright
225.9Bright
235.9Bright
246.0Bright
256.0Bright
266.0Intense
276.0Intense
286.0Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Portogruaro?

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

6.5
Sightseeing
3rd-best month of the year
4.6
Beach & pool
5th-best month of the year

May is a reasonable time to visit Portogruaro for sightseeing.

What to pack for Portogruaro in May

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

In May, Portogruaro sees daytime highs around 22°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Portogruaro in May

The nearest coast averages about 18°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

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 in Portogruaro in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

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

Air quality in Portogruaro in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual 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
Location & terrain

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
May weather 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).