Measurements:
°C
°F
Mykonos
70°F
NW 8 mph
Feels like: 70°F
Precip: 0%
World Resorts Greece Mykonos Weather

Mykonos Sea Water Temperature

Current Sea Water Temperature:
+66.6°F
Maximum Sea Water Temperature in May: 72.0°F
Minimum Sea Water Temperature in May: 62.0°F
Average water temperature in May: 66.8°F

Sea Water Temperature for the Last 10 Days:

May 11 66.6°F May 06 64.0°F
May 10 65.0°F May 05 63.0°F
May 09 63.6°F May 04 63.2°F
May 08 63.2°F May 03 64.0°F
May 07 64.2°F May 02 63.6°F

When is the Warmest Sea for Mykonos?

According to our data for the last three years for Mykonos the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Mykonos was 79.5°F. The maximum and minimum values were 78.0°F and 82.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Mykonos was 77.8°F. The maximum and minimum values were 74.0°F and 81.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Mykonos was 77.8°F. The maximum and minimum values were 74.8°F and 80.4°F respectively.

Best Time to Visit Mykonos
The most sunny months:
July 31 days
August 30 days
June 29 days
The most warm months:
August 84.7 °F
July 84.2 °F
September 79.7 °F
Warmest sea temperature:
August 79.7 °F
July 78.2 °F
September 78.2 °F
The most cold months:
January 56.2 °F
February 56.8 °F
March 58.6 °F
The most rainy months:
January 5 days
December 4 days
February 3 days
The most windy months:
January 18 mph
February 18 mph
July 18 mph

Mykonos on the Weather Map

Greece Resorts:
NAME
Athenes +78
Athos +68
Bali Gr +86
Chalkidiki +68
Chania +82
Corfu +70
Crete +76
Heraklion +82
Kassandra +68
Paralia Katerini +72
Rhodes +76
Santorini +68
Thasos +64
Thessaloniki +74
Zakynthos +68
24 Hours Weather Forecast
Mykonos
Local time: 13:03
11 may, monday
1500 70°F
NW
11 mph
1800 70°F
NW
11 mph
2100 68°F
NW
11 mph
12 may, tuesday
0000 68°F
NW
7 mph
0300 68°F
NE
4 mph
0600 66°F
NE
5 mph
0900 66°F
N
6 mph
1200 68°F
N
6 mph