Measurements:
°C
°F
Cephalonia
58°F
SE 9 mph
Feels like: 56°F
Precip: 100%
World Resorts Greece Cephalonia Weather May Weather in Cephalonia

Cephalonia Weather: May

Average Day Temperature: 72.2°F
Average Night Temperature: 64.5°F
Sea Water Temperature: 68.3°F
Number of Sunny Days: 23 days
Sunshine Hours: 13.8 - 14.6 hours
Number of Rainy Days: 2 days
Precipitation Totals: 0.9 in

Air Temperature in May, °F

Select Year: 2025 2024 2023

The highest day temperature in May 2025 was 75°F. The lowest night temperature was 62°F. The average values for day and night temperatures during May were 71.0°F и 66.5°F respectivly.

Cephalonia Water Sea Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Cephalonia was 68.9°F. The maximum and minimum values were 64.8°F and 72.6°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in May are sunny but you can also expect cloudy and gloomy days.

Precipitation Totals in May, in

Precipitation total in May for Cephalonia is 0.9 in. It makes may one of the least rainy months of the year.

Wind Speed in May, mph

The average wind speed in May is 8.2 mph. It makes May one of the most windless months of the year for Cephalonia.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Cephalonia in May is 11.2 hours.

Best Time to Visit Cephalonia
The most sunny months:
July 30 days
August 29 days
June 26 days
The most warm months:
August 89.1 °F
July 88.0 °F
September 82.9 °F
Warmest sea temperature:
August 83.2 °F
September 81.2 °F
July 80.9 °F
The most cold months:
January 56.9 °F
February 57.6 °F
March 60.1 °F
The most rainy months:
January 7 days
November 7 days
December 7 days
The most windy months:
January 11 mph
February 11 mph
December 10 mph

Cephalonia on the Weather Map

Greece Resorts:
NAME
Athenes +58
Athos +58
Bali Gr +60
Chalkidiki +58
Chania +52
Corfu +56
Crete +56
Hanioti +60
Heraklion +60
Hersonissos +56
Paralia Katerini +50
Rhodes +62
Santorini +66
Thasos +60
Thessaloniki +52
24 Hours Weather Forecast
Cephalonia
Local time: 10:27
05 dec, friday
1200 60°F
SE
11 mph
1500 60°F
SE
9 mph
1800 58°F
S
5 mph
2100 56°F
S
5 mph
06 dec, saturday
0000 56°F
SE
6 mph
0300 58°F
SE
6 mph
0600 56°F
SE
8 mph
0900 58°F
SE
15 mph