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Best
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Best
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Best
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Best
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Tan
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Tan
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Tan
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Tan
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Tan
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Tan
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Sea
16°
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Sea
15°
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Sea
15°
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Sea
15°
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Sea
17°
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Sea
23°
Swim
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Sea
24°
Swim
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Sea
25°
Swim
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Sea
25°
Swim
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Sea
22°
Swim
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Sea
19°
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Sea
17°
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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.
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.
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.
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
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.
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
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.
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
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.
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.
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.
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.
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.
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).
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.
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.
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.
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.
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).
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.
