Early May 1 May
71°F
Typical afternoon high
6% historical wet-day frequency
Greece · Beach
Santorini, Mykonos & the Greek islands
in May.
Is May a good time?
Warm days.
More overnight stays than April.
May averages 74°F afternoons and 67°F seas, with about 1 rain day. Later May is typically warmer.
- Afternoons
- 74°F
- Sea
- 67°F
- Visitor demand
- 53%of August peak
Historical Notio Aigaio regional averages, not a forecast or a measure of queues. Overnight demand compares average stays per day. The South Aegean: Rhodes, Kos, Santorini, Mykonos, Paros, Naxos and the rest of the Cyclades and Dodecanese. The islands differ a lot from each other; these figures describe the group.
Overall match
8.4/10 · scores & prioritiesWhat matters most?
Weather 50% · Crowds 30% · Cost 20%
#2 of 12 months here · Balanced mix
Weather10.0/10Excellent
CrowdsModerate seasonvs its own year; overnight stays do not measure queuesFor its size, one of Europe's busiest this month
CostModeratefor Europe; Greece-wide price level
Overall combines weather, overnight demand and cost. It does not include sea temperature.
Plan your May
What to expect.
What should I pack?
Afternoons around 74°F (23°C): T-shirt weather; nights around 63°F (17°C): light layers. About 14 hours of daylight. About 1 rain day in a typical May.
Can I swim in May?
The sea averages 67°F. Our swimming guide: fresh: fine once you are in. Your comfort will vary. This is open water near the coast, not a beach-specific reading.
Monthly coastal averages from NOAA, 2011–2025. Sea temperature is separate from the weather and Overall scores.
A typical day: temperatures & daylightAfternoons, nights, sea temperature & daylight Show detailsHide details
About 14 hours of daylight.
The sun rises about 06:08 and sets about 20:14 (local time, mid-month). Mornings start around 63°F (17°C); afternoons reach about 74°F (23°C). Expect rain on about 1 day in a typical May.
Typical afternoon
74°F (23°C)
average daily high, 15 recent Mays
Night low
63°F (17°C)
average daily minimum
Sea
67°F (19°C)
fresh; open water near the coast, NOAA satellite record 2011–2025
Daylight
14h 06m
on the 15th, computed from latitude
Early, middle or late?
Early or late May?
Late May is typically warmer. The afternoon high averages 71°F on the 1st, versus 77°F on the 31st.
Mid May 15 May
74°F
Typical afternoon high
4% historical wet-day frequency
Late May 31 May
77°F
Typical afternoon high
4% historical wet-day frequency
Historical daily averages from 2011–2025, smoothed over two weeks. A seasonal pattern, not a forecast. This does not establish which week has the lowest prices or fewest visitors.
Public holidays · 2027: 1 May Labour Day; 3 May Easter Monday.
Daily calendar & holiday datesMay 2027 · historical weather & dated holidays Show calendarHide calendar
May 2027 calendar
Weather shows historical patterns, not a forecast. Holidays and events use the dates shown for 2027.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 171° | 271° | |||||
| 371° | 472° | 572° | 672° | 772° | 872° | 972° |
| 1073° | 1173° | 1273° | 1373° | 1473° | 1574° | 1674° |
| 1774° | 1874° | 1974° | 2075° | 2175° | 2275° | 2375° |
| 2475° | 2575° | 2676° | 2776° | 2876° | 2976° | 3076° |
| 3177° |
Afternoon high rain likely (25%+) local school holidays public holiday event
Afternoons warm from about 72°F (22°C) in the first week to 76°F (24°C) in the last. The chance of a wet day runs 4–7%. Local schools are out 1–9 May 2027. Orthodox Easter: 25 April – 3 May 2027.
Schools here are off 1–9 May 2027 (Easter holidays). Public holidays: 1 May Labour Day; 3 May Easter Monday. Elsewhere in May 2027, the share of people living where schools are out on a typical day: Germany 13%. (School holidays: official calendar, compiled by Bigfoot Wanders; other countries from OpenHolidays, ODbL.)
Crowds and cost
Visitor season
Will it be busy?
Moderate season. May averages 53% of August's overnight stays per day. More overnight stays than April.
Overnight stays across Notio Aigaio do not measure queues, day visitors or congestion at individual sights. For its size, one of Europe's busiest this month.
Hotel price season
Will it be cheaper?
A little above usual. Estimated from national hotel prices and local visitor demand; no measured regional room rate is available.
Fewer overnight stays do not automatically mean cheaper rooms. Check actual quotes for your trip.
What's on Orthodox Easter, 25 April – 3 May 2027: Greeks travel home and to the islands; ferries and hotels book up. Official site.
Greece as a whole
Below EU average
2024 restaurants and hotels price level: 86 where the EU average is 100. A relative index, not a room rate.
Year-to-year variation
How much does May vary?
Across the recorded years
In the 15 years from 2011 to 2025, the month's afternoons averaged between 72°F (22°C) and 77°F (25°C); in 14 of them they were within 3°F (1.5°C) of the typical 74°F (23°C). Rain days ranged from 0 to 4; half the years had 1–3.
Rain days in each May
Rain days
1
at least 1 mm, typical year; about 3 in a wet year
Mostly sunny days
19 of 31
cloud cover under 30%
Years with a 95°F+ day
0 of 15
no May in the last 15 years had a day at or above 95°F (35°C)
Good weather days
29 of 31
rated very good or better
See every recorded MayHistorical monthly averages, year by year Show detailsHide details
| Year | Afternoon high | Rain days |
|---|---|---|
| 2011 | 72°F | 3 |
| 2012 | 74°F | 3 |
| 2013 | 75°F | 2 |
| 2014 | 73°F | 1 |
| 2015 | 74°F | 2 |
| 2016 | 73°F | 4 |
| 2017 | 73°F | 2 |
| 2018 | 77°F | 1 |
| 2019 | 73°F | 0 |
| 2020 | 74°F | 1 |
| 2021 | 74°F | 0 |
| 2022 | 73°F | 1 |
| 2023 | 72°F | 3 |
| 2024 | 74°F | 1 |
| 2025 | 73°F | 1 |
Checked against official climate averages for Kos, Mykonos, Rhodes and Santorini. How we check
Compare dates
April, May
or June?
| Typical conditions | Apr | May | Jun |
|---|---|---|---|
| Afternoons | 68°F | 74°F | 81°F |
| Sea | 63°F | 67°F | 72°F |
| Rain days | 3 | 1 | 0 |
| Overnight demand | 19% | 53% | 79% |
April: Cooler afternoons, cooler sea and more rain days than May. Less overnight demand. April guide →
June: Warmer afternoons and warmer sea than May. More overnight demand. June guide →
Overnight demand measures accommodation stays, not queues. Sea temperatures are monthly coastal averages.
Compare any of the 12 monthsChoose another month and compare it with May Show comparisonHide comparison
Yellow marks the top three months on the Balanced mix. May stays as your reference.
No other scored month has a Weather score at least 1.0 point higher than May.
Your comparison
May or April?
Overnight stays are 19% of the busiest month.
National hotel prices and local visitor demand suggest about usual. No measured regional room rate is available.
Read the April guide →| Typical conditions | May | April |
|---|---|---|
| Afternoons | 74°F | 68°F |
| Nights | 63°F | 57°F |
| Sea | 67°F | 63°F |
| Rain days | 1 | 3 |
| Visitor season | Moderate season | Low season |
| Overall / 10 | 8.4 | 8.3 |
| Month rank | #2 | #3 |
Every month, in detail Show detailsHide details
| Month | Overall | Rank | High | Low | Sea | Rain days | Weather | Visitor season |
|---|---|---|---|---|---|---|---|---|
| January | 5.2 | #12 | 60°F | 50°F | 63°F | 13 | 4.1 | Off season |
| February | 5.7 | #11 | 61°F | 51°F | 62°F | 9 | 5.0 | Off season |
| March | 6.3 | #9 | 64°F | 53°F | 62°F | 6 | 6.4 | Off season |
| April | 8.3 | #3 | 68°F | 57°F | 63°F | 3 | 8.4 | Low season |
| May | 8.4 | #2 | 74°F | 63°F | 67°F | 1 | 10.0 | Moderate season |
| June | 7.8 | #5 | 81°F | 70°F | 72°F | 0 | 10.0 | Busy season |
| July | 7.5 | #7 | 85°F | 74°F | 76°F | 0 | 10.0 | Peak season |
| August | 7.6 | #6 | 86°F | 75°F | 78°F | 0 | 10.0 | Peak season |
| September | 8.0 | #4 | 82°F | 71°F | 77°F | 1 | 10.0 | Busy season |
| October | 8.7 | #1 | 76°F | 65°F | 73°F | 4 | 10.0 | Moderate season |
| November | 6.9 | #8 | 69°F | 60°F | 69°F | 7 | 7.7 | Off season |
| December | 5.7 | #10 | 63°F | 54°F | 66°F | 12 | 5.2 | Off season |
Near here
Nearby places in May
Nearby regions, nearest first. Distances are centre to centre, as the crow flies; they are not road distances or journey times.
CreteGreece · about 130 miles
Balanced Overall 8.4 · Excellent weather, 80°F (27°C) · Moderate season · Cost moderate
North Aegean islandsGreece · about 140 miles
Balanced Overall 8.9 · Excellent weather, 75°F (24°C) · Low season · Cost moderate
Athens & AtticaGreece · about 170 miles
Balanced Overall 8.3 · Excellent weather, 82°F (28°C) · Busy season · Cost moderate
Elsewhere in Europe
Same dates, elsewhere in Europe
Santorini, Mykonos & the Greek islands' weather ranks 4 of 77 beach regions this month. We found no beach regions outside Greece with similar weather and a quieter visitor season.
How we knowSources, regional scope & scoring method Show detailsHide details
It's moderate season, 53% of the busiest month and 34% above its average month. That means about 152,000 overnight visitors on a typical May night across the region, 5% of them from Greece itself. Rentals booked through Airbnb, Booking, Expedia and Tripadvisor add up to 21,000 more: 14 for every 100 counted above. Some are the same properties counted twice.
| Climate suitability (HCI:Beach, 0–100) | 85 |
| How our weather was checked | Official climate averages for Kos, Mykonos, Rhodes and Santorini from the national weather service, every month: afternoon highs typically within 1°F (0.8°C), night lows within 2°F (0.9°C). |
| Tourist nights per 1,000 residents per day | 466 |
| Busiest month here | August · 885 |
| Visitors as share of people present | 31.8% |
| Rank among Europe's regions this month | 100th percentile |
| Domestic share of nights | 5% |
| Platform rental nights per 100 counted nights | 14 |
| Visitor share if every platform night were extra | 34.6% |
| National hotel-price season | Greece historical 2024–2025 index: About usual (+4% vs its average month). Not a local room quote. |
| Population used | 327,000 |
| Statistical region | EL42 · Notio Aigaio |
Crowds: Eurostat nights spent at tourist accommodation, by month and NUTS 2 region, 2024–2025 average. Overnight visitors per night is the month's nights divided by its days; the per-1,000 figure is Eurostat's, against each year's population. Platform rentals: Eurostat nights booked via Airbnb, Booking, Expedia and Tripadvisor, 2024–2025 average, shown separately because some properties are in both counts. Weather: Holiday Climate Index computed from ERA5 reanalysis with daily highs, night lows and rain days corrected from open national weather-service station records, 2011–2025, population-weighted to the region; day-by-day figures are the same data averaged by date. Heat and rain odds are counted across those years. Sunrise and sunset: NOAA solar equations, local time. Prices: Eurostat price level index and HICP, national. Full method · this region's data.