Mykonos weather in May

In May, Mykonos sees average daytime highs of 19°C and overnight lows near 18°C, with 8 mm of rain across 1.6 wet days and about 14 hours of daylight. It is the 6th-warmest and 8th-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 72% 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 Mykonos's 5th-clearest and 12th-windiest month. For the whole year in context, see Mykonos's year-round climate.

Daytime high
19°
6th warmest
Overnight low
18°
7th coldest
Rainfall
8 mm
1.6 wet days
Daylight
14 hours
5:15 AM – 7:15 PM
Cloud cover
26%
5th clearest
Wind
22 km/h
12th windiest
Solar energy
7.18 kWh/m²
Travel score
7.9
out of 10

Mykonos is town on Mykonos island, South Aegean.

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 Mykonos reaches about 19°C in the afternoon and slips back to 18°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 21°C. Set against its neighbours, May runs about 3°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11716
21816
31816
41816
51817
61817
71817
81817
91817
101817
111917
121917
131917
141918
151918
161918
171918
181918
191918
202018
212018
222018
232019
242019
252019
262019
272019
282019
292119
302119
312120

Mykonos weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 12°8011.49.73.8
Feb14° / 12°648.810.64.0
Mar14° / 13°466.611.74.8
Apr16° / 15°193.612.96.2
May19° / 18°81.6147.9
Jun23° / 21°20.414.59.4
Jul25° / 24°00.114.39.7
Aug25° / 24°0013.49.6
Sep24° / 22°6112.39.3
Oct21° / 19°313.7117.9
Nov17° / 16°436.3106.4
Dec15° / 13°6810.19.54.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 72% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 17%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17921
28020
38020
48119
58218
68218
78218
88317
98317
108317
118317
128218
138218
148218
158218
168218
178218
188218
198218
208218
218218
228218
238218
248416
258416
268515
278515
288614
298614
308812
318812

Chance of precipitation in May

Any precipitation

Mykonos gets around 8 mm of rain over 1.6 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 5% and peaks near 6% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
16
26
36
45
55
65
75
84
94
104
114
124
134
144
154
164
175
185
195
205
216
226
236
246
256
266
275
285
295
305
314

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 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1395290
23753100
33455110
43255130
53056140
62955160
72755180
82555200
92454220
102352250
112151271
122050291
131949311
141748341
151646371
161445392
171343422
181242452
191040472
20938503
21836533
22835534
23733564
24631585
25530596
26528607
27427618
28425629
293236311
303226213
313206215

Wind in May

Winds average 22 km/h in May, the calmest month.

Across May, daily wind ranges from about 20 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
822breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2220breezy
2320breezy
2420breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

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 5:30 AM to 5:05 AM, and sunset from 7:02 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:307:02
213.65:297:03
313.65:287:03
413.65:277:04
513.75:267:05
613.75:247:06
713.75:237:07
813.85:227:08
913.85:217:09
1013.85:207:10
1113.95:197:11
1213.95:187:12
1313.95:177:12
1413.95:177:13
1514.05:167:14
1614.05:157:15
1714.05:147:16
1814.15:137:17
1914.15:127:18
2014.15:127:19
2114.15:117:19
2214.25:107:20
2314.25:097:21
2414.25:097:22
2514.25:087:23
2614.35:087:23
2714.35:077:24
2814.35:077:25
2914.35:067:26
3014.35:067:26
3114.45:057:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 7.18 kWh/m².

For context, solar energy here swings from a low near 2.09 kWh/m² to a high of 7.88 kWh/m² in June across the year — May's 7.18 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
16.8Intense
26.9Intense
36.9Intense
46.9Intense
56.9Intense
67.0Intense
77.0Intense
87.0Intense
97.0Intense
107.0Intense
117.1Intense
127.1Intense
137.1Intense
147.1Intense
157.2Intense
167.2Intense
177.2Intense
187.2Intense
197.2Intense
207.3Intense
217.3Intense
227.3Intense
237.3Intense
247.4Intense
257.4Intense
267.4Intense
277.4Intense
287.5Intense
297.5Intense
307.5Intense
317.5Intense
Planning a trip in May

Is May a good time to visit Mykonos?

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

7.9
Sightseeing
5th-best month of the year
3.5
Beach & pool
6th-best month of the year

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

What to pack for Mykonos in May

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

In May, Mykonos sees daytime highs around 19°C and nights near 18°C. Pack sun protection. Worth having: a windbreaker.

sun protectiona windbreaker

Sea temperature near Mykonos 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 24°C and coldest in February near 16°C.

It's comfortable for a long swim from Jun 2 to Oct 31 — about 5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb16Cool
Mar16Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug24Refreshing
Sep23Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index in Mykonos 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 Mykonos peaks around June 23 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJun 23UV 9Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr8Very high
May7Very high
Jun9Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low
Location & terrain

Where is Mykonos?

Mykonos sits at 37.4°N, 25.3°E, 0 m above sea level, in Greece. The nearest listed city is Naxos, 38 km away.

ParosOiaFiraChiosÇeşmeArtémidaKoropí

Topography around Mykonos

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

Within 3 km, the terrain around Mykonos has significant variations in elevation — a maximum elevation change of 265 m around an average of 55 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 377 m; within 80 km, large variations in elevation — a maximum elevation change of 996 m.

The land around Mykonos is covered by grassland (41%) and water (34%) within 3 km, water (86%) within 16 km, and water (90%) within 80 km.

3 km
265 m
16 km
377 m
80 km
996 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Naxos 38 km · Paros 43 km · Oia 109 km · Fira 114 km · Chios 125 km · Çeşme 130 km · Artémida 131 km · Koropí 138 km

Greece travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$26,948
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
8.3
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 592
Religion
other 3%Muslim 2%

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 Mykonos (37.4453°, 25.3287°, elevation 0 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).