Annual average weather for Kerama Islands, Japan

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Annual Average Weather for Kerama Islands, Japan

The annual average maximum daily temperature is 25.9°C (78.6°F) which is very warm and perfect for sunbathing on clear days. The annual average water temperature is typically 25.3°C (77.6°F) which is warm and pleasant for relaxing and swimming for long periods. Annually there are on average 19.6 days of rain per month and 7.1 hours of sun per day.

When is the best time to visit Kerama Islands?

The best months to visit Kerama Islands are 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 May to October when the maximum temperature reaches above 26°C (72°F)

The sea is best for swimming between June and November when the sea temperature is above the average 25°C (78°F) which is warm and pleasant for relaxing and swimming for long periods.

Can you sunbathe in Kerama Islands year round?

No, you can't sunbathe in Kerama Islands 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 May to October when the maximum temperature reaches above 26°C (72°F)

More info about the annual temperatures and sunshine.

Can you swim in Kerama Islands year round?

Yes, you can swim in Kerama Islands all year round.

The warmest sea water temperatures in Kerama Islands are found in July when they peak at 29°C (85°F) and lowest in February when they dip to 22°C (71°F).

The sea temperature is above average for swimming between June and November when the sea temperature is above 25°C (78°F) which is warm and pleasant for relaxing and swimming for long periods.

For perfect swimming and lounging all day, try the months from June to October when the sea temperature is above 26°C (79°F)

More info about the annual sea temperatures

When is the hottest month in Kerama Islands?

The hottest month in Kerama Islands is July when the average maximum temperature is very hot and perfect for sunbathing on clear days 32°C (89°F), average temperature is 29°C (85°F) and average minimum temperature is 27°C (81°F).

More info about the annual temperatures and sunshine.

When is the coldest month in Kerama Islands?

The coolest month in Kerama Islands is January when the average maximum temperature is 20°C (67°F), average temperature is 17°C (63°F) and average minimum temperature is 15°C (60°F).

More info about the annual temperatures and sunshine

When is the sunniest month in Kerama Islands?

The sunniest days in Kerama Islands are in June which has the most hours of sunshine per day. In June the sunshine percentage is 66% making it sunny but overcast at times. The hours of sunshine per day are 8.3hrs making the days long and bright.

More info about the annual sunshine.

When is the least sunny month in Kerama Islands?

December has the least sunshine. In December the sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.2 hours of sunshine per day.

More info about the annual sunshine.

When is the sea the coldest in Kerama Islands?

The coldest sea water temperatures in Kerama Islands are found in February when they dip to 22°C (71°F) which is comfortable for swimming though some may prefer warmer water.

More info about the annual sea temperatures.

When is the sea the warmest in Kerama Islands?

The warmest sea water temperatures in Kerama Islands are found in July when they peak at 29°C (85°F) which is very warm and ideal for relaxing and swimming for the whole day.

More info about the annual sea temperatures.

When is the most humid month in Kerama Islands?

The most humid month in Kerama Islands is July with a dew point (an indicator of humidity) of 26°C (79°F) which is extremely humid and uncomfortable unless you are on a beach. At night you would most likely require airconditioning.

More info about the annual humidity.

When is the least humid month in Kerama Islands?

The least humid month in Kerama Islands is January with a dew point of 13°C (56°F) which is comfortable for everyone.

More info about the annual humidity.

When is the windiest month in Kerama Islands?

The most windy month in Kerama Islands is December when the average maximum windspeed is 32KM/H (20MPH) and the average wind speed is 20KM/H (12MPH).

More info about the annual wind conditions.

Annual Temperature for Kerama Islands

The hottest month in Kerama Islands is July when the average maximum temperature is 32°C (89°F), average temperature is 29°C (85°F) and average minimum temperature is 27°C (81°F).

The coolest month in Kerama Islands is January when the average maximum temperature is 20°C (20°F), average temperature is 17°C (63°F) and average minimum temperature is 15°C (60°F).

Annual Sunshine for Kerama Islands

The longest days in Kerama Islands are in June, with an average of 13.8 hours of daylight per day. December has the shortest days with an average of 10.5 hours of daylight per day.

The sunniest days in Kerama Islands are in June which has the most hours of sunshine per day. The sunshine percentage is 66% making it sunny but overcast at times. The hours of sunshine per day are 8.3hrs making the days long and bright.

December has the least sunshine. The sunshine percentage is 49% making it quite sunny but with regular periods of cloudy and overcast skies. There are 5.2 hours of sunshine per day.

The ultraviolet index is the highest in July when it reaches 12.7 and lowest in December when it reaches 5.5.

An ultraviolet index reading above 11 indicates an extreme risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 10 minutes. Take all precautions because unprotected skin and eyes can burn in minutes. 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 Kerama Islands

The warmest sea water temperatures in Kerama Islands are found in July when they peak at 29°C (85°F) and lowest in February when they dip to 22°C (71°F).

The sea is best for swimming between June and November when the temperature is above 25°C (78°F) which is warm and pleasant for relaxing and swimming for long periods.

Annual Humidity for Kerama Islands

The most humid month in Kerama Islands is July with a dew point (an indicator of humidity) of 26°C (79°F) which is extremely humid and uncomfortable unless you are on a beach. At night you would most likely require airconditioning.

The least humid month in Kerama Islands is January with a dew point of 13°C (56°F) which is comfortable for everyone.

Annual Wind Speed for Kerama Islands

The most windy month in Kerama Islands is December when the average maximum windspeed is 32KM/H (20MPH) and the average wind speed is 20KM/H (12MPH).

The least windy month in Kerama Islands is July when the average maximum windspeed is 26KM/H (16MPH) and the average wind speed is 17KM/H (11MPH).

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