Mykonos, Greece Climate & Monthly Averages

Greece 🇬🇷 · semi-arid climate
Annual avg
64°
Hottest month
July
Coldest month
January
Rainy days / yr
56
Sunshine
10.7 h/day
Right now: 65° and clear - see live conditions

The climate of Mykonos

Mykonos runs on a dry-summer rhythm: the warmest months are also the driest. August averages 2 mm (0.1 in) while the wet season peaks in January at 3.2 inches (80 mm). Highs range from 55°F (13°C) to 81°F (27°C).

Climate quick facts

  • Hottest month: July - highs near 81°F (27°C)
  • Coldest month: January - highs near 55°F (13°C)
  • Decade extremes (2015-2024): 97°F (36°C) high · 34°F (1°C) low
  • Wettest month: January (12 rainy days) · Sunniest: June (13.8 h sun/day)
  • Climate type: semi-arid
  • Annual swing: 14°C between the average warmest and coolest month · day to night: 4°C
  • Average humidity: 69%

Temperatures through the year

July is the warm end of the year, averaging 81°F (27°C) by day and 73°F (23°C) overnight. January bottoms out at 55°F (13°C) in daylight, 49°F (9°C) after dark. Snowfall is rare but not unheard of.

Rain, sun and snow

6 months average under 20 mm of rain, the longest unbroken stretch running May through October. The wettest month is January (3.2 inches (80 mm) across 12 days) and the driest August. Five of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is August through October. The gridded 2015-2024 daily record for this location tops out at 97°F (36°C) and bottoms at 34°F (1°C) - decade extremes, not all-time station records.

How Mykonos compares

  • Afternoons run 4°C above the following night - a flatter daily curve than almost every other city we track.
  • Annual precipitation is 13.8 inches (350 mm) - drier than all but 9% of the 3496 cities we track.
  • Rain or snow reaches the ground on 56 days a year - fewer wet days than all but 11% of the 3496 cities we track.

Ranked against every city in our dataset, each measured on the same ten-year window.

Monthly climate table

Monthly averages for Mykonos based on 2015–2024 weather data. Daylight is sunrise to sunset on the 15th; wet-day chance is the share of days with measurable rain.
MonthHighLow Rain daysPrecipitation SunshineDaylightWet-day chanceHumidity
January 55° 49° 12 3.2 in 7.4 h/day 9.8 h 37% 69%
February 56° 50° 7 1.8 in 8.9 h/day 10.8 h 26% 70%
March 58° 51° 7 1.6 in 10.0 h/day 11.9 h 24% 68%
April 64° 56° 3 0.8 in 11.4 h/day 13.1 h 11% 68%
May 70° 62° 4 0.5 in 12.6 h/day 14.2 h 12% 69%
June 77° 69° 2 0.2 in 13.8 h/day 14.7 h 5% 68%
July 81° 73° 0 0.1 in 13.7 h/day 14.5 h 0% 65%
August 81° 74° 1 0.1 in 12.9 h/day 13.6 h 3% 68%
September 77° 70° 1 0.4 in 11.7 h/day 12.4 h 4% 68%
October 70° 64° 3 0.7 in 10.0 h/day 11.2 h 9% 71%
November 64° 58° 7 1.8 in 8.8 h/day 10.1 h 22% 72%
December 58° 52° 9 2.5 in 7.7 h/day 9.6 h 30% 71%

Mykonos month by month

Average high and low for each month, with the bar showing where it sits in Mykonos's year (left is the coldest night, right is the warmest afternoon).

January

ColdestWettest
55°49°
Rain
12 days
Sunshine
7.4 h
Daylight
9.8 h

February

56°50°
Rain
7 days
Sunshine
8.9 h
Daylight
10.8 h

March

58°51°
Rain
7 days
Sunshine
10.0 h
Daylight
11.9 h

April

64°56°
Rain
3 days
Sunshine
11.4 h
Daylight
13.1 h

May

70°62°
Rain
4 days
Sunshine
12.6 h
Daylight
14.2 h

June

Sunniest
77°69°
Rain
2 days
Sunshine
13.8 h
Daylight
14.7 h

July

Hottest
81°73°
Rain
0 days
Sunshine
13.7 h
Daylight
14.5 h

August

Driest
81°74°
Rain
1 day
Sunshine
12.9 h
Daylight
13.6 h

September

77°70°
Rain
1 day
Sunshine
11.7 h
Daylight
12.4 h

October

70°64°
Rain
3 days
Sunshine
10.0 h
Daylight
11.2 h

November

64°58°
Rain
7 days
Sunshine
8.8 h
Daylight
10.1 h

December

58°52°
Rain
9 days
Sunshine
7.7 h
Daylight
9.6 h

Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December

Seasons in Mykonos

Spring (March through May)

Spring runs cool rather than cold here - highs near 64°F (18°C), nights near 56°F (13°C), and rain comes on about 14 days over the three months. Daylight is generous - around 11.3 hours of sun a day.

Summer (June through August)

Through summer, Mykonos brings comfortable warmth: 80°F (26°C) by day, 72°F (22°C) after dark, and precipitation is sparse, near 10 mm (0.4 in) for the season. Daylight is generous - around 13.5 hours of sun a day.

Fall (September through November)

Through fall, Mykonos brings comfortable warmth: 70°F (21°C) by day, 64°F (18°C) after dark, and rain comes on about 11 days over the three months. Daylight is generous - around 10.2 hours of sun a day.

Winter (December through February)

Winter in Mykonos stays on the cool side of mild, with daytime highs averaging 56°F (14°C) and nights around 50°F (10°C); expect showers on roughly 28 days across the season.

Climate questions, answered

How much sun does Mykonos get?
10.7 hours a day averaged over the year, peaking in June at 13.8 hours.
How much do temperatures drop at night in Mykonos?
By about 4°C on an average day - a narrower day-to-night gap than most of the 3496 cities we track. In July that means 81°F (27°C) down to 73°F (23°C).
How many rainy days does Mykonos get in a year?
About 56 days bring measurable precipitation, totalling 13.8 inches (350 mm). That works out at roughly 6.2 mm on an average wet day.
When is the dry season in Mykonos?
6 months average under 20 mm of rain, with August the driest at 2 mm (0.1 in).
How hot does Mykonos get in summer?
July averages 81°F (27°C). Hot afternoons happen but extremes are not the norm.
What should I pack for Mykonos?
It depends on the month: July runs to 81°F (27°C) while January holds at 55°F (13°C). The full month-by-month breakdown is in the packing notes above.

Best time to visit Mykonos

Aim for April to September if you get the choice: temperatures sit either side of the peak heat rather than in it, and highs average 75°F (24°C) against roughly 2 wet days a month. For the same question asked the other way round, see where else is warm in April.

Pack for Mykonos with light clothing for the warm months, a warm jacket and layers for the cooler season and rain gear if you travel around January. Note the gap between afternoon and night: July pairs 81°F (27°C) with 73°F (23°C).

Mykonos temperature records (2015-2024)

Highest recorded
97°
in June
Lowest recorded
34°
in January
Annual precipitation
13.8"
Snowy days / yr
0

Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.