September weather forecastCephalonia, Greece
September
Weather in September
September, the first month of the autumn in Cephalonia, is still a warm month, with temperature in the range of an average high of 26.9°C (80.4°F) and an average low of 19.1°C (66.4°F).The perfect water temperature of 25.8°C (78.4°F) with 31mm (1.22") of accumulated rainfall and only 3 rainfall days, makes September a great period for swimming and other water activities.
Temperature
As August transitions into September, Cephalonia sees a gentle drop in the average high-temperature, transitioning from a moderately hot 29.9°C (85.8°F) to a still warm 26.9°C (80.4°F). Cephalonia's temperature in September lowers to a consistent average of 19.1°C (66.4°F) during the nights.Rainfall
In September, the rain falls for 3 days. Throughout September, 31mm (1.22") of precipitation is accumulated. Throughout the year, there are 70 rainfall days, and 779mm (30.67") of precipitation is accumulated.Sea temperature
In Cephalonia, in September, the average water temperature is 25.8°C (78.4°F).Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Daylight
In Cephalonia, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 07:07 and sunset at 20:07. On the last day of September, sunrise is at 07:32 and sunset at 19:22 EEST.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cephalonia, Greece
- Average high temperature in September: 26.9°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is February (14.1°C).
- Average low temperature in September: 19.1°C
The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is February (8°C).
Average rainfall in September
Cephalonia, Greece
- Average rainfall in September: 31.3mm
The wettest month (with the highest rainfall) is November (155.9mm).
The driest month (with the least rainfall) is July (1.3mm).
Average rainfall days in September
Cephalonia, Greece
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is December (12 days).
The month with the least rainy days is July (0 days).
Average sea temperature in September
Cephalonia, Greece
- Average sea temperature in September: 25.8°C
The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest month (with the lowest average sea temperature) is February (15.4°C).
Average daylight in September
Cephalonia, Greece
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).





