Weather in Mykonos in June

How June compares

June is the 3rd warmest month of the year in Mykonos and ranks 112th of 134 destinations we compare for June - see where else is hot in June. Within Greece it is 35th of 44 (Greece in June). Against London's average high of 19.6°C in June, Mykonos is 4.7°C warmer by day and 9.7°C warmer at night.

Daytime and night-time in June

The typical June day in Mykonos peaks at 24.3°C, but that is an average: the warmest 10% of days reach 26.7°C or more. Roughly 1 in 3 days top 25°C and 1 in 111 pass 30°C. Nights average 21.0°C; one night in ten drops to 18.8°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 34.8°C (2017-06-30) and the coldest night 14.2°C (1997-06-02).

Rain in June

Dry (3 rainy days or fewer): about 1 days with 1 mm or more, 2 mm in total. Year to year it varies a lot - the wettest June was 2018 with 10 mm, the driest 1991 with 0 mm. Humidity averages 74%.

Sea temperature in June

The sea averages 21.6°C - bracing (18-22°c). Depending on the year it ranges from 20.7°C to 22.6°C. For the warmest sea here, come in August (24.3°C).

Sunshine and daylight

Around 13.2 hours of sunshine a day (estimated from cloud cover), 14.6 hours of daylight: the sun rises about 05:57 and sets about 20:41 local time in mid-June. Average cloud cover is 9%.

Is June a good time to visit Mykonos?

Yes - it is one of the better months: warm days, little rain and long sunny days. The best months for Mykonos on our scoring are July, August, June; months averaging 25°C or more: Jul, Aug.

Warm days rather than dependable hot weather

Pack mainly light summer clothes, but do not assume every afternoon will feel hot. Days reach 25°C around 33% of the time, so June is better suited to travellers who enjoy warmth than those chasing high temperatures. The warmest days reach 26.7°C or more, making a shaded break at midday sensible when it feels hotter. Evenings should usually be comfortable in light clothing, though a light layer is useful: the coldest nights fall to 18.8°C or below. Humidity averages 74%, so loose, breathable fabrics are a practical choice, particularly if you tend to feel sticky in warm weather.

Plenty of sunshine, with little need for a rain plan

Rain is unlikely to be the main constraint on a June holiday. With about 0 rainy days, you can reasonably centre your plans on being outdoors, while remembering that dry averages are not a guarantee for every stay. Sunshine averages about 13.2 hours within 14.6 hours of daylight, leaving plenty of flexibility over when to head out. Use that flexibility to take a shaded lunch break rather than spending the whole middle of the day in direct sun. Sunscreen, sunglasses and a sunhat deserve more attention in your packing than substantial wet-weather clothing, even though the air temperatures are not extreme.

The sea is the main compromise

Swimming is possible, but the water may take some getting used to. The average sea temperature of 21.6°C sits in the bracing category, so a sunny afternoon does not necessarily mean a comfortably warm swim. June sea temperatures range from 21°C to 23°C between years, which can make a noticeable difference if you feel the cold easily. Plan on shorter dips rather than assuming you will want long stretches in the water. If your main aim is relaxing outside with an occasional swim, the balance works well; if warm water is essential, June is a less certain fit.