Measurements:
°C
°F
Thessaloniki
84°F
S 4 mph
Feels like: 86°F
Precip: 2%
World Resorts Greece Thessaloniki Weather

Thessaloniki Sea Water Temperature

Current Sea Water Temperature:
+87.4°F
Maximum Sea Water Temperature in August: 89.2°F
Minimum Sea Water Temperature in August: 80.2°F
Average water temperature in August: 84.8°F

Sea Water Temperature for the Last 10 Days:

August 24 87.4°F August 19 86.2°F
August 23 87.4°F August 18 85.8°F
August 22 87.4°F August 17 85.8°F
August 21 86.6°F August 16 86.6°F
August 20 86.2°F August 15 87.0°F

When is the Warmest Sea for Thessaloniki?

According to our data for the last three years for Thessaloniki 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: 2026 2025 2024

The average sea surface temperature in August 2026 for Thessaloniki was 86.4°F. The maximum and minimum values were 84.6°F and 87.6°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Thessaloniki was 83.7°F. The maximum and minimum values were 81.4°F and 86.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Thessaloniki was 81.7°F. The maximum and minimum values were 78.6°F and 84.0°F respectively.

Best Time to Visit Thessaloniki
The most sunny months:
July 28 days
August 26 days
September 24 days
The most warm months:
July 95.4 °F
August 94.8 °F
June 88.4 °F
Warmest sea temperature:
August 84.9 °F
July 83.4 °F
September 80.7 °F
The most cold months:
January 47.4 °F
December 50.9 °F
February 52.4 °F
The most rainy months:
May 3 days
November 3 days
March 3 days
The most windy months:
July 6 mph
April 6 mph
May 6 mph

Thessaloniki on the Weather Map

Greece Resorts:
NAME
Athenes +90
Bali Gr +78
Chalkidiki +88
Chania +82
Corfu +88
Crete +78
Hanioti +86
Nikiti +88
Paralia Katerini +84
Pefkochori +86
Rhodes +86
Sithonia +86
Thasos +88
Thessaloniki +84
Zakynthos +86
24 Hours Weather Forecast
Thessaloniki
Local time: 21:22
25 aug, tuesday
0000 82°F
SW
3 mph
0300 80°F
SE
1 mph
0600 78°F
W
2 mph
0900 86°F
S
2 mph
1200 98°F
NE
5 mph
1500 102°F
NE
11 mph
1800 100°F
NE
9 mph
2100 86°F
E
4 mph