Okinawa - Japan weather in January 2026
January
Okinawa - Japan weather in January 2026
January
Day
20 °C
Night
15 °C
Sea
23 °C
Precipitation
123 mm
in month
Rainy days
13 days
in month
Daylight
11 hours
average
Sunshine
3 hours
average
Humidity
73 %
Day
20 °C
Night
15 °C
Sea
23 °C
Precipitation
123 mm
in month
Rainy days
13 days
in month
Daylight
11 hours
average
Sunshine
3 hours
average
Humidity
73 %
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Weather overview and FAQs
Weather overview
In January in Okinawa, the average air temperature ranges from 20 °C (68 °F) during the day to 15 °C (58 °F) at night. There are 13 days of rain on average, where the rainfall is 123 mm (4.84 in).
Is January a good month to visit Okinawa?
There are good conditions for visiting in Okinawa in January. The temperature of the sea will be perfect at 23 °C (73 °F). There are some people, who may feel a slight chill at 20 °C (68 °F), but others will feel perfectly fine. The temperature of 15 °C (58 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What temperature can I expect during the day in January in Okinawa?
In Okinawa in January, the average daily temperatures will be 20 °C (68 °F). Nice temperature for walking around the city or on the beach, but you will probably get cold soon when wearing a swimsuit. When walking around all day, people used to cold conditions, pull out their shorts and get rid of their sweaters. On some days, when spending time in the direct sun, sunscreen can be useful, especially for people with more sensitive skin.
What is the sea temperature in January in Okinawa?
The temperature of the sea in Okinawa in January is 23 °C (73 °F). This warm sea is nice for swimming, maybe cold for some, but most people can spend a long time in it.
What is the average number of rainy days in January in Okinawa?
In Okinawa in January, we can expect 13 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 3.0 days of the week, or in general - 43 % days.
What is the rainfall intensity in Okinawa in January?
In January in Okinawa, there is 123 mm (4.84 in) rainfall, which means on average 4 mm (0.16 in) rainfall per day.
How humid is Okinawa in January?
In January in Okinawa, expect humidity around 73 %.
What is the air temperature in Okinawa in January at night?
The average night temperature in Okinawa in January is 15 °C (58 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.
How many sunny hours can I expect in Okinawa in January?
In January in Okinawa, you can expect around 3 hours of sunshine.
How long is the day (from dawn till dusk) in Okinawa in January?
The length of daylight in Okinawa in January is 11 hours.
Is the sea in Okinawa warmer in January than in December?
No, the sea is not warmer in January in Okinawa than in December.
Is the weather in Okinawa warmer in January than in December?
No, in January in Okinawa the temperature is not higher than in December.
How does the sea temperature evolve during the month in January in Okinawa?
Okinawa has a decreasing trend of the sea temperature during January - from 23 °C (74 °F) in the first days of the month to 22 °C (72 °F) in the last days of the month.
How windy is Okinawa in January?
An average wind scale that can be expected in Okinawa in January is 5.
Is Okinawa rainier in January than in December?
Yes, in January in Okinawa it rains more than in December.
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