World Resorts Greece Thessaloniki Weather

Thessaloniki sea water temperature

Current sea water temperature:
+67.6°F
Minimum sea water temperature in May: 75.0°F
Maximum sea water temperature in May: 59.7°F
Average sea water temperature in May: 67.5°F

Sea water temperature for the last 10 days:

May 17 67.6°F May 12 65.7°F
May 16 68.2°F May 11 64.9°F
May 15 67.1°F May 10 65.3°F
May 14 67.3°F May 9 64.0°F
May 13 66.9°F May 8 63.9°F

When is the warmest sea in Thessaloniki?

Based on the data about daily sea water temperature for the last three years the warmest sea in Thessaloniki was noticed in August, July and September.

Monthly Sea Temperatures in Thessaloniki, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 81.5°F. The highest and lowest sea temperatures during the month were 82.8°F and 79.9°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 81.3°F. The highest and lowest sea temperatures during the month were 84.7°F and 78.4°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 78.5°F. The highest and lowest sea temperatures during the month were 80.6°F and 75.7°F.

Best time for vacation in Thessaloniki

Sunniest months:
July 28 days
August 26 days
September 24 days
Warmest months:
July 91.0 °F
August 90.3 °F
June 84.6 °F
Warmest sea temp:
August 81.3 °F
July 80.0 °F
September 77.6 °F
Coldest months:
January 47.7 °F
December 50.8 °F
February 52.1 °F
Rainiest months:
May 3 days
November 3 days
March 3 days
Windiest months:
July 6.4 mph
June 6.1 mph
May 6.1 mph

Thessaloniki on a weather map

Thessaloniki
+61°F
S 8 mph
Feels like: +61°F
Precip.: 0%
Places in Greece:
Name
°F
+68°F
+64°F
+68°F
+61°F
+66°F
+63°F
+61°F
+61°F
+68°F
+61°F
+59°F
+61°F
+63°F
+66°F
24 Hours Forecast
Thessaloniki
Local time: 07:59
May 18, monday
0900
61°F
S
8 mph
1200
68°F
SE
6 mph
1500
72°F
E
5 mph
1800
70°F
NE
4 mph
2100
61°F
N
6 mph
May 19, tuesday
0000
59°F
NW
3 mph
0300
59°F
SW
2 mph
0600
57°F
S
2 mph
Units of measurement: °C / °F