Onna (Japan) is a place with a tropical climate. Temperatures during the day are in the range from 19.4 °C (66.9 °F) in January to 31.3 °C (88.3 °F) in July. Sea temperatures are in the following range: 21.4 °C (70.6 °F) in February to 28.7 °C (83.6 °F) in August. The driest month is October with just 10 days of rain, on the contrary, the month when it rains the most is August with 15 days of rain. The highest night temperatures could be experienced in July with 26.0 °C (78.8 °F), the lowest in January with 13.7 °C (56.7 °F).

January weather

The sea temperature descents similarly to the previous month, with its value of 22.3 °C (72.1 °F) in Onna, while the day temperature is on its minimum, with its value being 19.4 °C (66.9 °F). The night temperature is on its minimum, its value is 13.7 °C (56.7 °F). The minimum of the number of sun hours (without clouds) is observable in January. The beginning of the rise of the number of rainy days could be noticed, its value is 12 days.

February weather

The minimum of the sea temperature is observable, its value is 21.4 °C (70.6 °F) in Onna. The rainfall amount rise's start could be observed, with its value of 121 mm (4.75 in), while the rise of the number of rainy days can be observed, the value of this measure is 13 days.

March weather

The beginning of the rise of the day temperature could be noticed, with its value being 21.3 °C (70.3 °F) in Onna, and the beginning of the rise of the night temperature could be noticed as well in this month. The number of sun hours (without clouds) rise's start could be observed, the value of this measure is 3 hours. The rainfall amount continues to rise, with its value being 164 mm (6.46 in).

April weather

The day temperature rises similarly to the previous month, with its value being 23.7 °C (74.7 °F) in Onna, while the beginning of the rise of the sea temperature could be noticed in April. The rainfall amount rises similarly to the previous month, with its value of 173 mm (6.80 in), while the number of rainy days starts to descent in April. The night temperature rises similarly to the previous month, with its value of 18.1 °C (64.6 °F). The number of sun hours (without clouds) rises similarly to the previous month, its value is 5 hours.

May weather

The tourist season is at its beginning in May in Onna. The sea temperature rises similarly to the previous month, and the day temperature continues to rise too, the value of this measure is 26.4 °C (79.5 °F). The number of rainy days starts to rise, with its value being 13 days, while the rise of the rainfall amount can be observed, the value of this measure is 235 mm (9.26 in). The night temperature continues to rise, with its value of 21.1 °C (70.0 °F).

June weather

The tourist season is taking place in Onna. The rise of the sea temperature can be observed, with its value of 26.4 °C (79.5 °F), and the day temperature rises similarly to the previous month too, its value is 28.9 °C (84.0 °F). The maximum of the rainfall amount is observable, with its value being 255 mm (10.03 in), while the rise of the number of rainy days can be observed, its value is 13 days. The night temperature rises similarly to the previous month, with its value being 24.0 °C (75.2 °F).

July weather

The tourist season is taking place in Onna. The day temperature is on its maximum, with its value being 31.3 °C (88.3 °F), while the sea temperature continues to rise, its value is 28.5 °C (83.4 °F). The rainfall amount descent's start could be observed in this month. The maximum of the night temperature is observable in July. The number of sun hours (without clouds) is on its maximum in this month.

August weather

There is pending tourist season this month in Onna. The sea temperature reaches its maximum, its value is 28.7 °C (83.6 °F). The number of rainy days is on its maximum, its value is 15 days, while the rainfall amount rise's start could be observed in August. The beginning of the descent of the number of sun hours (without clouds) could be noticed, with its value being 7 hours.

September weather

The ongoing tourist season is noticeable in September in Onna. The day temperature starts to descent, and the beginning of the descent of the sea temperature could be noticed as well, with its value of 28.1 °C (82.6 °F). The rainfall amount starts to descent, the value of this measure is 213 mm (8.37 in), and the beginning of the descent of the number of rainy days could be noticed too, with its value of 14 days. The night temperature descent's start could be observed in September.

October weather

The day temperature continues to descent, the value of this measure is 27.7 °C (81.9 °F) in Onna, and the sea temperature descents similarly to the previous month too, with its value of 26.8 °C (80.2 °F). The tourist season continues. The number of rainy days is on its minimum, while the descent of the rainfall amount can be observed, its value is 153 mm (6.03 in). The descent of the night temperature can be observed.

November weather

The tourist season is taking place in November in Onna. The day temperature continues to descent, with its value of 24.5 °C (76.1 °F), and the sea temperature continues to descent as well, with its value being 25.2 °C (77.3 °F). The rainfall amount continues to descent, the value of this measure is 121 mm (4.76 in). The descent of the night temperature can be observed. The number of sun hours (without clouds) descents similarly to the previous month, with its value being 4 hours.

December weather

The day temperature continues to descent, its value is 21.1 °C (70.0 °F) in Onna, and the sea temperature descents similarly to the previous month too. The night temperature descents similarly to the previous month, with its value being 15.5 °C (59.9 °F). The rainfall amount reaches its minimum. The descent of the number of sun hours (without clouds) can be observed, the value of this measure is 3 hours. The day length reaches its minimum, its value is 10 hours.

FAQs

What is the humidity in Onna in January?

In Onna in January, expect humidity around 72 %.

Is February part of the dry season in Onna?

No, February is not a dry month in Onna, expect rain approximately 13 days in a month.

How many sunny hours can I expect in Onna in April?

There is an average length of sunshine of 5 hours per day in Onna in April.

What temperature can I expect during the day in May in Onna?

The average daily temperature in Onna in May is 26.4 °C (79.5 °F). The ideal temperature for enjoying sunbathing by the water and a good temperature for other activities. For some people, it will be too hot in the direct sunlight and the stay may not be so pleasant. Don't forget to pack flip-flops, sunscreen, and a hand fan if necessary - it may come in handy.

Is June a good month to visit Onna?

In Onna in June, there are ideal conditions for a vacation. The daily temperatures in this month reach pleasant 28.9 °C (84.0 °F). The seawater temperature reaches ideal 26.4 °C (79.5 °F). At night, temperatures hover around a pleasant 24.0 °C (75.2 °F).

Is it hot in July in Onna?

In July in Onna, you will enjoy nice warm weather, but it will also be pleasant and you probably won't feel hot.

What is the night temperature in Onna in August?

The average night temperature in August in Onna is 25.8 °C (78.4 °F). The temperature creates a tropical atmosphere and encourages a night of fun, often including a drink to refresh. After all, this temperature is already relatively high.

Is September part of the wet season in Onna?

No, there is no wet season in September in Onna - you can expect 14 days of rain during the month.

What is the sea temperature in October in Onna?

In October in Onna expect the sea to be warm at 26.8 °C (80.2 °F). Seems like an ideal temperature for swimming, you can stay in the sea for a long time and enjoy it as well.

How many days of precipitation on average can I expect in November in Onna?

In Onna in November, we can expect 11 days to be rainy, that is, days when precipitation exceeds 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.5 days of the week, or in general - 35 % days.

How windy is it in Onna in December?

An average wind scale that can be expected in December in Onna is 4.9.