Annual average weather for Marathonisi Island, Zakynthos, Greece

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Annual Average Weather for Marathonisi Island, Zakynthos, Greece

The annual average maximum daily temperature is 22.7°C (72.8°F) which is warm and makes sunbathing pleasant on clear days. The annual average water temperature is typically 19.3°C (66.7°F) which is comfortable for swimming though some may prefer warmer water. Annually there are on average 6.1 days of rain per month and 9.6 hours of sun per day.

When is the best time to visit Marathonisi Island?

The best months to visit Marathonisi Island are June, July, August, September, for the best beach weather, the most sunshine and optimal sunbathing and swimming conditions with the least chance of rain.

The weather is perfect for sunbathing in the months from June to September when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between June and October when the sea temperature is above the average 19°C (67°F) which is comfortable for swimming though some may prefer warmer water.

Can you sunbathe in Marathonisi Island year round?

No, you can't sunbathe in Marathonisi Island all year round. Some months are too cold for sunbathing, however you might enjoy other beach activities such as taking a walk, going hiking along trails or just enjoying the scenery.

The weather is best for sunbathing in the months from June to September when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in Marathonisi Island year round?

No, you can't swim in Marathonisi Island all year round.

The warmest sea water temperatures in Marathonisi Island are found in August when they peak at 25°C (78°F) and lowest in March when they dip to 15°C (58°F).

The sea temperature is above average for swimming between June and October when the sea temperature is above 19°C (67°F) which is comfortable for swimming though some may prefer warmer water.

For very comfortable swimming conditions try swimming in the months from June to September when the sea temperature is above 22°C (72°F)

More info about the annual sea temperatures

When is the hottest month in Marathonisi Island?

The hottest month in Marathonisi Island is August when the average maximum temperature is very hot and perfect for sunbathing on clear days 33°C (91°F), average temperature is 27°C (81°F) and average minimum temperature is 22°C (71°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Marathonisi Island?

The coolest month in Marathonisi Island is January when the average maximum temperature is 14°C (58°F), average temperature is 11°C (52°F) and average minimum temperature is 8°C (47°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Marathonisi Island?

The sunniest days in Marathonisi Island are in July which has the most hours of sunshine per day. In July the sunshine percentage is 88% making it extremely sunny and pleasant most of the time, with blue skies and rarely a cloud in sight. The hours of sunshine per day are 12.8hrs making the days exceptionally long and full of sunshine.

More info about the annual sunshine.

When is the least sunny month in Marathonisi Island?

December has the least sunshine. In December the sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 6.4hrs.

More info about the annual sunshine.

When is the driest month in Marathonisi Island?

The driest month in Marathonisi Island is July with 0.3cm (0.1inches) of rain and August has the fewest days of rain with 0.2 days with some rain, an extremely dry time to visit the beach.

More info about the annual rainfall

When is the wettest month in Marathonisi Island?

The wettest month in Marathonisi Island is December with 13.4cm (5.3inches) of rain and February has the most days of rain with 10.9 days with some rain, a pretty wet time to visit the beach.

More info about the annual rainfall.

When is the sea the coldest in Marathonisi Island?

The coldest sea water temperatures in Marathonisi Island are found in March when they dip to 15°C (58°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.

More info about the annual sea temperatures.

When is the sea the warmest in Marathonisi Island?

The warmest sea water temperatures in Marathonisi Island are found in August when they peak at 25°C (78°F) which is warm and pleasant for relaxing and swimming for long periods.

More info about the annual sea temperatures.

When is the most humid month in Marathonisi Island?

The most humid month in Marathonisi Island is August with a dew point (an indicator of humidity) of 21°C (70°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

More info about the annual humidity.

When is the least humid month in Marathonisi Island?

The least humid month in Marathonisi Island is February with a dew point of 9°C (49°F) which is a bit dry for some.

More info about the annual humidity.

When is the windiest month in Marathonisi Island?

The most windy month in Marathonisi Island is February when the average maximum windspeed is 22KM/H (14MPH) and the average wind speed is 11KM/H (7MPH).

More info about the annual wind conditions.

Annual Temperature for Marathonisi Island

The hottest month in Marathonisi Island is August when the average maximum temperature is 33°C (91°F), average temperature is 27°C (81°F) and average minimum temperature is 22°C (71°F).

The coolest month in Marathonisi Island is January when the average maximum temperature is 14°C (14°F), average temperature is 11°C (52°F) and average minimum temperature is 8°C (47°F).

Annual Sunshine for Marathonisi Island

The longest days in Marathonisi Island are in June, with an average of 14.8 hours of daylight per day. December has the shortest days with an average of 9.6 hours of daylight per day.

The sunniest days in Marathonisi Island are in July which has the most hours of sunshine per day. The sunshine percentage is 88% making it extremely sunny and pleasant most of the time, with blue skies and rarely a cloud in sight. The hours of sunshine per day are 12.8hrs making the days exceptionally long and full of sunshine.

December has the least sunshine. The sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 6.4hrs.

The ultraviolet index is the highest in July when it reaches 10.6 and lowest in December when it reaches 2.3.

An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Annual Sea Temperature for Marathonisi Island

The warmest sea water temperatures in Marathonisi Island are found in August when they peak at 25°C (78°F) and lowest in March when they dip to 15°C (58°F).

The sea is best for swimming between June and October when the temperature is above 19°C (67°F) which is comfortable for swimming though some may prefer warmer water.

Annual Rainfall for Marathonisi Island

The wettest month in Marathonisi Island is December with 13.4cm (5.3inches) of rain and February has the most days of rain with 10.9 days with some rain, a pretty wet time to visit the beach.

The driest month in Marathonisi Island is July with 0.3cm (0.1inches) of rain and August has the fewest days of rain with 0.2 days with some rain, an extremely dry time to visit the beach.

Annual Humidity for Marathonisi Island

The most humid month in Marathonisi Island is August with a dew point (an indicator of humidity) of 21°C (70°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan.

The least humid month in Marathonisi Island is February with a dew point of 9°C (49°F) which is a bit dry for some.

Annual Wind Speed for Marathonisi Island

The most windy month in Marathonisi Island is February when the average maximum windspeed is 22KM/H (14MPH) and the average wind speed is 11KM/H (7MPH).

The least windy month in Marathonisi Island is October when the average maximum windspeed is 18KM/H (11MPH) and the average wind speed is 7KM/H (4MPH).

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