Vasto weather in May

In May, Vasto sees average daytime highs of 22°C and overnight lows near 14°C, with 40 mm of rain across 6.8 wet days and about 14.4 hours of daylight. It is the 5th-warmest and 9th-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 43% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 48 min at the start of May to 14 h 48 min by month's end. Set against the rest of the year, May is Vasto's 5th-clearest and 7th-windiest month. For the whole year in context, see Vasto's year-round climate.

Daytime high
22°
5th warmest
Overnight low
14°
8th coldest
Rainfall
40 mm
6.8 wet days
Daylight
14 h 24 min
4:46 AM – 7:09 PM
Cloud cover
46%
5th clearest
Wind
9 km/h
7th windiest
Solar energy
6.27 kWh/m²
Travel score
7.4
out of 10

Vasto is chief town of municipality Vasto in Chieti province, Italy.

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 Vasto 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 26°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12012
22012
32012
42112
52113
62113
72113
82113
92113
102113
112113
122214
132214
142214
152214
162214
172214
182214
192214
202314
212315
222315
232315
242315
252315
262315
272415
282415
292416
302416
312416

Vasto weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 678.919.33.0
Feb12° / 518.30.710.33.3
Mar15° / 568.60.411.74.7
Apr18° / 10°558.2013.16.1
May22° / 14°406.8014.47.4
Jun26° / 18°404.70157.8
Jul29° / 20°253.4014.87.0
Aug29° / 20°273.8013.76.9
Sep25° / 17°596.9012.37.5
Oct21° / 13°607.8010.86.9
Nov16° / 748.90.19.65.3
Dec13° / 7210.30.693.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 43% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 20% of May, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25941
35941
45941
56040
66040
76139
86238
96238
106238
116337
126337
136337
146436
156436
166436
176535
186535
196535
206535
216634
226634
236634
246733
256733
266733
276832
286832
296832
306832
316832

Chance of precipitation in May

Any precipitation

Vasto gets around 40 mm of rain over 6.8 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 22% and peaks near 26% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
126
226
325
425
525
625
724
824
924
1024
1123
1223
1323
1423
1523
1623
1723
1822
1922
2022
2122
2221
2321
2420
2520
2620
2719
2819
2918
3018
3118

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 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1682840
2662950
3643060
4623170
5613180
6593290
75733100
85633110
95433130
105333140
115134150
125034160
134935161
144735171
154536181
164437191
174237191
184138201
193938212
203839222
213639232
223538243
233438253
243338264
253138274
263037285
272837295
282737306
292536317
302436338
312235349

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 48 min at the start of May to 14 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over May. Sunrise moves from 5:04 AM to 4:34 AM, and sunset from 6:52 PM to 7:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:046:52
213.85:036:54
313.95:026:55
413.95:006:56
514.04:596:57
614.04:586:58
714.04:566:59
814.14:557:00
914.14:547:01
1014.24:537:02
1114.24:517:03
1214.24:507:05
1314.34:497:06
1414.34:487:07
1514.34:477:08
1614.44:467:09
1714.44:457:10
1814.44:447:11
1914.54:437:12
2014.54:427:13
2114.54:417:14
2214.64:407:15
2314.64:407:16
2414.64:397:17
2514.74:387:18
2614.74:377:19
2714.74:377:19
2814.74:367:20
2914.84:357:21
3014.84:357:22
3114.84:347:23

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.27 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 6.86 kWh/m² in July across the year — May's 6.27 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.9Bright
45.9Bright
55.9Bright
66.0Bright
76.0Intense
86.0Intense
96.1Intense
106.1Intense
116.1Intense
126.1Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.4Intense
226.4Intense
236.4Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.6Intense
306.6Intense
316.6Intense
Planning a trip in May

Is May a good time to visit Vasto?

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

7.4
Sightseeing
3rd-best month of the year
5.1
Beach & pool
5th-best month of the year

May is one of the better times to visit Vasto for general sightseeing.

What to pack for Vasto in May

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

In May, Vasto sees daytime highs around 22°C and nights near 14°C. Pack sun protection. Worth having: light clothes. About 7 days see rain.

sun protectionlight clothes

Sea temperature near Vasto 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 14 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from May 31 to Oct 16 — about 4.6 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep24Refreshing
Oct20Refreshing
Nov17Cool
Dec15Cool

UV index in Vasto 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 Vasto peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 9Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5Moderate
Apr5Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low

Air quality in Vasto 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 Vasto is worst in April — around 18 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (December, 11 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodApr 1118 µg/m³Dec 1011 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb16Moderate
Mar17Moderate
Apr18Moderate
May15Moderate
Jun15Moderate
Jul14Moderate
Aug14Moderate
Sep11Good
Oct13Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Vasto?

Vasto sits at 42.1°N, 14.7°E, 144 m above sea level, in Italy. The nearest listed city is San Salvo, 8.0 km away.

Topography around Vasto

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

Within 3 km, the terrain around Vasto has significant variations in elevation — a maximum elevation change of 250 m around an average of 92 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 606 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,770 m.

The land around Vasto is covered by trees (30%) and water (24%) within 3 km, water (42%) and cropland (23%) within 16 km, and water (32%), trees (31%) and cropland (20%) within 80 km.

3 km
250 m
16 km
606 m
80 km
2,770 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: San Salvo 8.0 km · Termoli 27 km · Lanciano 29 km · Francavilla al Mare 49 km · Chieti 52 km · Pescara 57 km · Campobasso 61 km · Montesilvano 64 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 Vasto (42.1115°, 14.7065°, elevation 144 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).