Sant Antoni de Portmany weather in May

In May, Sant Antoni de Portmany sees average daytime highs of 22°C and overnight lows near 17°C, with 20 mm of rain across 3 wet days and about 14.1 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 24°C by the end. The sky is clear or mostly clear about 58% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Sant Antoni de Portmany's 4th-clearest and 8th-windiest month. For the whole year in context, see Sant Antoni de Portmany's year-round climate.

Daytime high
22°
6th warmest
Overnight low
17°
7th coldest
Rainfall
20 mm
3 wet days
Daylight
14 h 06 min
5:47 AM – 7:55 PM
Cloud cover
38%
4th clearest
Wind
14 km/h
8th windiest
Solar energy
7.1 kWh/m²
Travel score
8.1
out of 10

Sant Antoni de Portmany is municipal capital of the homonymous municipality of Ibiza, Spain.

Air quality
Good
PM10 16.8 µg/m³ · 2019
Density
172/km²
people per km²

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 Sant Antoni de Portmany reaches about 22°C in the afternoon and slips back to 17°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 24°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12015
22015
32015
42116
52116
62116
72116
82116
92116
102116
112116
122216
132217
142217
152217
162217
172217
182217
192217
202317
212317
222318
232318
242318
252318
262318
272318
282418
292418
302419
312419

Sant Antoni de Portmany 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
Jan15° / 11°315.59.65.3
Feb15° / 11°254.810.55.4
Mar17° / 12°214.111.76.4
Apr19° / 14°254.7137.1
May22° / 17°20314.18.1
Jun26° / 21°71.714.78.7
Jul29° / 23°30.414.57.7
Aug29° / 24°161.913.56.9
Sep27° / 22°414.612.37.7
Oct23° / 19°465.5117.8
Nov19° / 15°476.79.96.7
Dec16° / 12°365.39.35.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
26931
36931
46931
57030
67030
77030
87129
97129
107228
117228
127228
137228
147327
157327
167426
177426
187426
197426
207426
217426
227426
237426
247327
257327
267327
277426
287426
297426
307426
317525

Chance of precipitation in May

Any precipitation

Sant Antoni de Portmany gets around 20 mm of rain over 3 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 10% and peaks near 16% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
116
216
316
415
515
614
714
813
913
1012
1111
1211
1310
149
159
168
178
187
197
206
216
226
236
246
256
266
276
286
297
307
317

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 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1623620
2613720
3583930
4574030
5554140
6534340
7514450
8504550
9484660
10474760
11454870
12444980
13424980
14415090
154050100
163950110
173850120
183750130
193650150
203450160
213350180
223150190
232950210
242750230
252649250
262449271
272248291
282047311
291946332
301746352
311644373

Wind in May

Winds average 14 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 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 6:04 AM to 5:37 AM, and sunset from 7:40 PM to 8:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.66:047:40
213.66:027:41
313.76:017:42
413.76:007:43
513.85:597:44
613.85:587:45
713.85:577:46
813.95:557:47
913.95:547:48
1013.95:537:49
1114.05:527:50
1214.05:517:51
1314.05:507:52
1414.15:497:53
1514.15:487:54
1614.15:477:55
1714.25:467:56
1814.25:467:57
1914.25:457:57
2014.25:447:58
2114.35:437:59
2214.35:428:00
2314.35:428:01
2414.35:418:02
2514.45:408:03
2614.45:408:03
2714.45:398:04
2814.45:398:05
2914.55:388:06
3014.55:378:07
3114.55:378:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.1 kWh/m².

For context, solar energy here swings from a low near 2.18 kWh/m² to a high of 7.57 kWh/m² in June across the year — May's 7.1 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.7Intense
26.7Intense
36.7Intense
46.8Intense
56.8Intense
66.8Intense
76.9Intense
86.9Intense
96.9Intense
107.0Intense
117.0Intense
127.0Intense
137.1Intense
147.1Intense
157.1Intense
167.2Intense
177.2Intense
187.2Intense
197.2Intense
207.2Intense
217.3Intense
227.3Intense
237.3Intense
247.3Intense
257.3Intense
267.3Intense
277.3Intense
287.3Intense
297.3Intense
307.4Intense
317.4Intense
Planning a trip in May

Is May a good time to visit Sant Antoni de Portmany?

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

8.1
Sightseeing
2nd-best month of the year
5.7
Beach & pool
6th-best month of the year

May is one of the better times to visit Sant Antoni de Portmany for general sightseeing.

What to pack for Sant Antoni de Portmany in May

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

In May, Sant Antoni de Portmany sees daytime highs around 22°C and nights near 17°C. Pack sun protection. Worth having: light clothes. About 3 days see rain.

sun protectionlight clothes

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

It's comfortable for a long swim from Jun 2 to Nov 5 — about 5.2 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Sant Antoni de Portmany 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 Sant Antoni de Portmany peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 18 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateHighVery highHighModerateLowJul 16UV 9Dec 18UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr4Moderate
May7High
Jun9Very high
Jul10Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Sant Antoni de Portmany?

Sant Antoni de Portmany sits at 39.0°N, 1.3°E, 14 m above sea level, in Spain. The nearest listed city is Ibiza, 14 km away.

CalpCalviàOlivaAltea

Topography around Sant Antoni de Portmany

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sant Antoni de Portmany.

Within 3 km, the terrain around Sant Antoni de Portmany has only modest variations in elevation — a maximum elevation change of 240 m around an average of 34 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 485 m; within 80 km, significant variations in elevation — a maximum elevation change of 477 m.

The land around Sant Antoni de Portmany is covered by water (25%), trees (23%) and grassland (23%) within 3 km, water (51%) and trees (26%) within 16 km, and water (93%) within 80 km.

3 km
240 m
16 km
485 m
80 km
477 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ibiza 14 km · Santa Eulària des Riu 20 km · Javea 101 km · Denia 105 km · Calp 115 km · Calvià 122 km · Oliva 123 km · Altea 125 km

Spain travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$38,627
2025
Happiness
6.5 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
3.9
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 540
Religion
Roman Catholic 58%atheist 16%agnostic 11%non-believer 11%

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 Sant Antoni de Portmany (38.9807°, 1.3036°, elevation 14 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).