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Cephalonia weather in August

Weather in Cephalonia: August

Average day temperature: 85.2°F
Average night temperature: 76.7°F
Sea water temperature: 79.8°F
Number of sunny days: 29 days
Day length: 13.0 - 14.1 hours
Number of rainy days: 1 day
Precipitation totals: 0.5 in.

Air temperature in August, °F

Show year:
2025
2024
2023

The highest day temperature during August of 2025 was 89°F. At the same time the lowest night temperature was 68°F. Daily and nightly averages during August were 82.2°F and 73.3°F.

Sea water temperature in Cephalonia in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 78.1°F. The highest and lowest sea temperatures during the month were 80.1°F and 75.7°F.

Sunny, partly cloudy and cloudy days

Mostly all days in August are sunny but cloudy days are also possible.

Precipitation total in August, in.

Precipitation total value in Cephalonia in August is 0.5 in. Other months of the year show relatively similar values.

Wind speed in August, mph

The average wind speed value in August is 7.9 mph It makes August one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in August is: 12.4.

Best time for vacation in Cephalonia

Sunniest months:
July 30 days
August 29 days
June 26 days
Warmest months:
August 85.2 °F
July 84.2 °F
September 79.6 °F
Warmest sea temp:
August 79.8 °F
September 78.1 °F
July 77.8 °F
Coldest months:
January 56.2 °F
February 56.9 °F
March 59.1 °F
Rainiest months:
January 7 days
November 7 days
December 7 days
Windiest months:
January 11.6 mph
February 10.9 mph
December 10.5 mph

Cephalonia on a weather map

Cephalonia
+57°F
SE 9 mph
Feels like: +54°F
Precip.: 100%
Places in Greece:
Name
°F
+59°F
+57°F
+61°F
+61°F
+55°F
+55°F
+63°F
+52°F
+66°F
+61°F
+59°F
+57°F
+54°F
+57°F
24 Hours Forecast
Cephalonia
Local time: 05:29
December 05, friday
0600
57°F
SE
9 mph
0900
57°F
SE
9 mph
1200
59°F
SE
11 mph
1500
59°F
SE
9 mph
1800
57°F
S
5 mph
2100
55°F
S
5 mph
December 06, saturday
0000
55°F
SE
6 mph
0300
57°F
SE
6 mph
Units of measurement: °C / °F