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Home > Local Weather Forecast > Greece > Kefalonia > Climate Profile

Local Weather

Kefalonia Climate History

Past weather including monthly averages for Kefalonia

Greece

Country Overview For Greece

The climate in Greece is typically temperate; mild, wet winters; hot, dry summers. The terrain: mostly mountains with ranges extending into the sea as peninsulas or chains of islands. For Athens in January the daily average maximum temperatures is 13°C with the average minimum 6°C, while in June the average maximum is 30°C with a minimum of 20°C. The wettest month for Athens is November with an average of 72.9mm of precipitation falling while the driest month is August with 3.7mm falling.


 

HISTORICAL MONTHLY AVERAGES FOR DECEMBER

The information presented below gives detailed historical monthly average weather conditions along with exceptional weather occurrences. To maintain relevance to current weather trends the displayed information has been calculated using data collected over the past two decades. The climate profile is taken from closest available data source to Kefalonia.

Temperature

Throughout the month of December daytime temperatures will generally reach highs of around 15°C that's about 60°F. At night the average minimum temperature drops down to around 10°C, that's 51°F.

In recent times the highest recorded temperature in December has been 21°C that's 70°F, with the lowest recorded temperature -1°C, about 30°F.

Relative Humidity

The average daily relative humidity for December is around 73%.

Heat Index

The Heat Index is a measure of how hot it feels when relative humidity is added to actual air temperature. From this a comfort level is calculated providing categories on how heat conditions might adversely affect someone.

Comfort Levels: Given average maximum temperatures and humidity levels generally you should not anticipate any discomfort from heat (see heat index for more information).

Estimated Hours of Sunshine per Day

We calculate sunshine hours per day using our past forecast data. For December expect the sun to shine for an average of 6 hours per day. This represents the average number of hours in the daytime that the sun is visible and not obscured by cloud e.g. the average number of hours the sun is actually out and shining. Note we calculate hours of sunshine per day using our past forecast data, not observation data, thus it is an estimate and not actual.

Wind

The average daily wind speed in December has been around 13 km/h, that’s the equivalent to about 8 mph, or 7 knots. In recent years the maximum sustained wind speed has reached 61 km/h, that’s the equivalent of around 38 mph, or 33 knots.

Fog

On average the month of December is not affected by foggy conditions.

SWIMMING AND WATER TEMPERATURE

The temperature of water an individual will feel comfortable in is very much personal preference. What feels unbearably cold to one person for a swim might be fine for another. We have created our own Swimming Water Temperature Index offering a guide to water temperature and comfort levels for swimming;

In December, for the nearest coastal location, the temperature of the sea averages around 17°C, that's 63° Fahrenheit. Our index indicates for swimming this is considered relatively cool and though enjoyed by the more hardy among us, any more than 10-20 minutes in the sea would leave you feeling refreshed to say the least.

 

YEARLY TRENDS: WEATHER AVERAGES & EXTREMES

The following charts show yearly weather trends with information on monthly weather averages and extremes.

Temperature

The chart below plots the average high and low temperature for each month of the year. It also shows the maximum and minimum recorded temperatures.

Rain days

The chart below plots the average number of days in any month that you can expect to see rain falling.

Wind Speed

The chart below plots the average daily wind speed you can expect for any month. It also shows the maximum recorded sustained wind speed for each month.