Monfalcone weather in May

In May, Monfalcone sees average daytime highs of 19°C and overnight lows near 15°C, with 105 mm of rain across 10.6 wet days and about 14.7 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 21°C by the end. The sky is clear or mostly clear about 40% 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 Monfalcone's 5th-clearest and 9th-windiest month. For the whole year in context, see Monfalcone's year-round climate.

Daytime high
19°
5th warmest
Overnight low
15°
8th coldest
Rainfall
105 mm
10.6 wet days
Daylight
14 h 42 min
4:41 AM – 7:24 PM
Cloud cover
52%
5th clearest
Wind
11 km/h
9th windiest
Solar energy
5.74 kWh/m²
Travel score
6.2
out of 10

Monfalcone is chief town of the homonym municipality.

Air quality
Moderate
PM2.5 12.3 µg/m³ · 2019

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 18°C in the first days to 21°C by the end.

A typical May day in Monfalcone reaches about 19°C in the afternoon and slips back to 15°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 22°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11713
21713
31813
41814
51814
61814
71814
81814
91814
101914
111915
121915
131915
141915
151915
161915
171915
182015
192016
202016
212016
222016
232016
242016
252116
262117
272117
282117
292117
302117
312117

Monfalcone weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 919.60.68.91.3
Feb / 918.4110.11.6
Mar11° / 9390.411.63.0
Apr15° / 11°9710.50.113.34.4
May19° / 15°10510.6014.76.2
Jun24° / 19°879.4015.57.2
Jul26° / 21°637.2015.27.5
Aug26° / 22°907.4013.97.4
Sep22° / 18°17010.4012.36.8
Oct18° / 14°19512.6010.75.4
Nov13° / 10°20113.40.39.33.3
Dec / 12710.30.88.51.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35347
45347
55347
65347
75347
85347
95446
105446
115446
125446
135545
145545
155644
165743
175743
185743
195941
205941
216040
226139
236139
246139
256238
266238
276238
286238
296238
306139
316139

Chance of precipitation in May

Any precipitation

Monfalcone gets around 105 mm of rain over 10.6 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 35% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
238
338
438
538
638
738
837
937
1037
1137
1236
1336
1435
1535
1635
1734
1834
1933
2033
2132
2232
2332
2431
2531
2631
2731
2831
2932
3032
3133

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 (%)
1752410
2732610
3702820
4692920
5663130
6633340
7623440
8603550
9573760
10553870
11553870
12533980
13514090
144941100
154741111
164641121
174441131
184341141
194241152
204140162
214040183
223939193
233838204
243737215
253636226
263435247
273334257
283134278
293033289
3028322911
3127313112

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 5:01 AM to 4:27 AM, and sunset from 7:05 PM to 7:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.15:017:05
214.15:007:06
314.24:587:07
414.24:577:09
514.24:557:10
614.34:547:11
714.34:527:13
814.44:517:14
914.44:497:15
1014.54:487:16
1114.54:477:18
1214.64:457:19
1314.64:447:20
1414.64:437:21
1514.74:427:23
1614.74:417:24
1714.84:397:25
1814.84:387:26
1914.84:377:27
2014.94:367:28
2114.94:357:30
2214.94:347:31
2315.04:337:32
2415.04:327:33
2515.04:317:34
2615.14:307:35
2715.14:307:36
2815.14:297:37
2915.24:287:38
3015.24:277:39
3115.24:277:40

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 1.16 kWh/m² to a high of 6.34 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
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
256.0Bright
266.0Bright
276.0Intense
286.0Intense
296.0Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Monfalcone?

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

6.2
Sightseeing
5th-best month of the year
2.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Monfalcone for sightseeing.

What to pack for Monfalcone in May

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

In May, Monfalcone sees daytime highs around 19°C and nights near 15°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Monfalcone 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 21 km away) is warmest in August at about 25°C and coldest in February near 10°C.

It's comfortable for a long swim from May 31 to Oct 9 — about 4.3 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
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Monfalcone in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Monfalcone 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
Feb2Moderate
Mar4Moderate
Apr7High
May6High
Jun8Very high
Jul8Very high
Aug7Very high
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Monfalcone 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 Monfalcone is worst in January — around 16 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (September, 9 µg/m³).

Seasonal pattern from CAMS reanalysis, scaled to Monfalcone's WHO annual average of 12.3 µg/m³.

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateJan 1816 µg/m³Sep 149 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb14Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun12Good
Jul12Good
Aug10Good
Sep9Good
Oct10Good
Nov10Good
Dec13Moderate
Location & terrain

Where is Monfalcone?

Monfalcone sits at 45.8°N, 13.5°E, 7 m above sea level, in Italy. The nearest listed city is Gorizia, 17 km away.

Topography around Monfalcone

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

Within 3 km, the terrain around Monfalcone has only modest variations in elevation — a maximum elevation change of 140 m around an average of 20 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 642 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,763 m.

The land around Monfalcone is covered by trees (40%) and artificial surfaces (30%) within 3 km, trees (34%), water (23%) and cropland (21%) within 16 km, and trees (50%) within 80 km.

3 km
140 m
16 km
642 m
80 km
2,763 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Gorizia 17 km · Nova Gorica 19 km · Trieste 26 km · Piran 31 km · Koper 32 km · Divača 36 km · Udine 37 km · Postojna 53 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 Monfalcone (45.8046°, 13.5329°, elevation 7 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).