Mazara del Vallo weather in May

In May, Mazara del Vallo sees average daytime highs of 21°C and overnight lows near 16°C, with 19 mm of rain across 4 wet days and about 14 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 64% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 24 min by month's end. Set against the rest of the year, May is Mazara del Vallo's 5th-clearest and 7th-windiest month. For the whole year in context, see Mazara del Vallo's year-round climate.

Daytime high
21°
6th warmest
Overnight low
16°
7th coldest
Rainfall
19 mm
4 wet days
Daylight
14 hours
5:05 AM – 7:07 PM
Cloud cover
34%
5th clearest
Wind
16 km/h
7th windiest
Solar energy
7.02 kWh/m²
Travel score
7.9
out of 10

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 23°C by the end.

A typical May day in Mazara del Vallo reaches about 21°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 24°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)
11915
22015
32015
42015
52015
62015
72015
82015
92016
102116
112116
122116
132116
142116
152116
162116
172116
182116
192217
202217
212217
222217
232217
242217
252217
262217
272317
282318
292318
302318
312318

Mazara del Vallo weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 10°649.99.74.3
Feb14° / 10°619.210.54.2
Mar16° / 11°518.211.75.2
Apr18° / 13°417.112.96.4
May21° / 16°194147.9
Jun25° / 20°51.314.68.9
Jul28° / 23°20.414.38.4
Aug29° / 23°61.513.57.5
Sep26° / 21°42612.37.7
Oct23° / 18°748.4117.4
Nov19° / 15°7710.3106.2
Dec16° / 12°7110.89.44.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27624
37624
47723
57723
67723
77723
87723
97723
107723
117723
127723
137723
147723
157723
167723
177723
187723
197723
207822
217822
227822
237921
247921
257921
268020
278020
288020
298020
308020
318119

Chance of precipitation in May

Any precipitation

Mazara del Vallo gets around 19 mm of rain over 4 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 13% and peaks near 20% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
120
220
319
419
518
618
717
817
916
1015
1115
1214
1314
1413
1513
1613
1712
1812
1912
2011
2111
2211
2310
2410
2510
2610
2710
289
299
309
319

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 52% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1623710
2603910
3594010
4574210
5554320
6534520
7524620
8504730
9484830
10475040
11455140
12435250
13415360
14395470
15385570
16365680
173456100
183257110
193058120
202958130
212758150
222658160
232458180
242258200
252158210
261958230
271857250
281755271
291555291
301453321
311352341

Wind in May

Winds average 16 km/h in May.

Across May, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 5:21 AM to 4:55 AM, and sunset from 6:53 PM to 7:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:216:53
213.65:206:54
313.65:186:55
413.65:176:56
513.75:166:57
613.75:156:58
713.75:146:58
813.85:136:59
913.85:127:00
1013.85:117:01
1113.95:107:02
1213.95:097:03
1313.95:087:04
1414.05:077:05
1514.05:067:06
1614.05:057:07
1714.15:047:07
1814.15:047:08
1914.15:037:09
2014.15:027:10
2114.25:017:11
2214.25:017:12
2314.25:007:12
2414.24:597:13
2514.34:597:14
2614.34:587:15
2714.34:577:16
2814.34:577:16
2914.34:567:17
3014.44:567:18
3114.44:557:19

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.02 kWh/m².

For context, solar energy here swings from a low near 2.14 kWh/m² to a high of 7.61 kWh/m² in June across the year — May's 7.02 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.6Intense
26.7Intense
36.7Intense
46.7Intense
56.8Intense
66.8Intense
76.8Intense
86.8Intense
96.9Intense
106.9Intense
116.9Intense
126.9Intense
137.0Intense
147.0Intense
157.0Intense
167.0Intense
177.0Intense
187.1Intense
197.1Intense
207.1Intense
217.1Intense
227.1Intense
237.2Intense
247.2Intense
257.2Intense
267.2Intense
277.2Intense
287.3Intense
297.3Intense
307.3Intense
317.3Intense
Planning a trip in May

Is May a good time to visit Mazara del Vallo?

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

7.9
Sightseeing
3rd-best month of the year
5.0
Beach & pool
6th-best month of the year

May is one of the better times to visit Mazara del Vallo for general sightseeing.

What to pack for Mazara del Vallo in May

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

In May, Mazara del Vallo sees daytime highs around 21°C and nights near 16°C. Pack sun protection. About 4 days see rain.

sun protection

Sea temperature near Mazara del Vallo 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 offshore is warmest in August at about 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 9 to Nov 5 — about 4.9 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr15Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep24Refreshing
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Mazara del Vallo in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mazara del Vallo peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateVery highHighModerateJul 17UV 10Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb4Moderate
Mar6High
Apr3Moderate
May5High
Jun8Very high
Jul10Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Mazara del Vallo?

Mazara del Vallo sits at 37.7°N, 12.6°E, 8 m above sea level, in Italy. The nearest listed city is Castelvetrano, 18 km away.

Topography around Mazara del Vallo

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

Within 3 km, the terrain around Mazara del Vallo has only modest variations in elevation — a maximum elevation change of 64 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 227 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,576 m.

The land around Mazara del Vallo is covered by water (38%), artificial surfaces (28%) and grassland (23%) within 3 km, water (43%) and grassland (33%) within 16 km, and water (62%) and grassland (21%) within 80 km.

3 km
64 m
16 km
227 m
80 km
1,576 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Castelvetrano 18 km · Marsala 21 km · Trapani 41 km · Casa Santa 41 km · Sciacca 47 km · Alcamo 49 km · Ribera 62 km · Partinico 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 Mazara del Vallo (37.6553°, 12.5899°, elevation 8 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).