Miyakojima in January: weather, what to wear and what's on

Averages for 1991–2020 at the JMA's Miyakojima station (38 m above sea level).

High

20.6°C (69°F)

Low

16.3°C (61°F)

Precipitation

138.8 mm

Wet days

12.3 days

Sunshine

86 hours

• Highs are 1.6°C below December and 0.5°C below February.
• That is 5.8°C below Miyakojima's yearly average high of 26.4°C.
• Of our 34 places with temperature records, Miyakojima is the 2nd warmest in January: 0.9°C cooler than Ishigaki and 0.8°C warmer than Naha.
• January is Miyakojima's 3rd driest month (138.8 mm).
• Of our 35 places, Miyakojima has the 7th highest precipitation in January: 1.1 mm less than Aomori and 3.8 mm more than Ishigaki.
• Rain of 1 mm or more falls on 12.3 days, and 10 mm or more on 4.2 days.
• Rain of 30 mm or more in one day falls on 1.0 days.
• The sun is out for 40% or more of the possible hours on 9.0 days, and 7.5 days have under 0.1 hours of sunshine.

Average temperature

18.3°C (65°F)

Humidity

72%

Days of 25°C or more

1.5 days

Early, mid and late January

By the last ten days of January the average high in Miyakojima is 0.8°C lower than in the first ten.

By ten-day totals, 21–31 January is the wettest (52.0 mm) and 11–20 January the driest (43.2 mm).

Is Miyakojima cold in January?

No, it is mild. Miyakojima averages 20.6°C (69°F) by day and 16.3°C (61°F) at night in January. 21–31 January is the coldest stretch of the year, with highs of 20.2°C.

Mild: highs around 20.6°C

• Long sleeves, or a T-shirt with a light jacket or cardigan.
• An umbrella: rain falls on 12.3 days.

Pack

• Umbrella

• Our clothing rules

Cherry blossom

In Okinawa the JMA watches a Taiwan cherry (hikanzakura). The sample tree in Naha opens around 17 January and is in full bloom around 9 February in an average year (1991–2020). In 2026 it opened on 9 January and was in full bloom on 6 February.

Dates are for one sample tree at or near the JMA observatory, not for every park in the city.

National holidays in January 2027:

• Fri 1 January — New Year's Day
• Mon 11 January — Coming of Age Day

• Fri 1 January to Sun 3 January: 3 days off in a row
• Sat 9 January to Mon 11 January: 3 days off in a row

In January 2025, hotels and inns across Okinawa Prefecture were 52.5% full on average (11th busiest of 12 months). Foreign guests spent 629,020 nights there that month (Japan Tourism Agency). That compares with 51.9% in December and 62.1% in February.

• Japan in January: visitor numbers and busy travel days
• Holidays in January
• Year-end and New Year holidays