Thank you so much for the round-trip transportation! The ladies who greeted us were so warm and lovely, and the snorkeling instructor was incredibly dedicated, always trying to take beautiful photos for us! Highly recommended, even non-swimmers can participate!! (Attached is a picture of the sea turtles we saw!)
Anonymous User
Family
Yonaguni Island Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Yonaguni Island year round climate
Spring (March–May): Average 21.3–25.1°C, mild and comfortable climate, abundant sunshine, moderate rainfall. Common activities: diving, snorkeling, sightseeing. Recommended clothing: light long-sleeved clothing, light jacket.
Summer (June–August): Average 28.0–29.6°C, hot and humid, occasional showers. Common activities: swimming, surfing, water sports. Recommended clothing: light and breathable clothing, swimwear, hat, sunscreen.
Autumn (September–November): Average 25.9–27.4°C, comfortable temperature, but September has heavier rainfall. Common activities: diving, snorkeling, sightseeing. Recommended clothing: light long-sleeved clothing, light jacket.
Winter (December–February): Average 19.0–20.3°C, relatively low temperature, occasional rainfall. Common activities: diving, sightseeing. Recommended clothing: light jacket, long-sleeved clothing.
Yonaguni Island climatological average
Annual average temperature: approx. 24.4°C / Annual rainfall: approx. 2348 mm / Summer humidity: 70%–80% / Rainiest month: September
Yonaguni Island monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
19°C
185
February
19.7°C
166.7
March
21.3°C
99.3
April
24°C
139.4
May
25.1°C
206.4
June
28°C
203
July
29.6°C
107.7
August
29.2°C
108.3
September
27.4°C
404.9
October
25.9°C
263.5
November
23.8°C
233.7
December
20.3°C
230.1
Yonaguni Island weather for the next seven days
7/16
Thursday
Patchy rain nearby
29.1°C/28.6°C
7/17
Friday
Partly Cloudy
29.2°C/28.5°C
7/18
Saturday
Patchy rain nearby
29°C/28.6°C
7/19
Sunday
Patchy rain nearby
29.1°C/28.4°C
7/20
Monday
Sunny
29.1°C/28.5°C
7/21
Tuesday
Partly Cloudy
29°C/28.7°C
7/22
Wednesday
Patchy rain nearby
29°C/28.6°C
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