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 70–77°F, 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 82–85°F, hot and humid, occasional showers. Common activities: swimming, surfing, water sports. Recommended clothing: light and breathable clothing, swimwear, hat, sunscreen.
Autumn (September–November): Average 78–81°F, comfortable temperature, but September has heavier rainfall. Common activities: diving, snorkeling, sightseeing. Recommended clothing: light long-sleeved clothing, light jacket.
Winter (December–February): Average 66–68°F, relatively low temperature, occasional rainfall. Common activities: diving, sightseeing. Recommended clothing: light jacket, long-sleeved clothing.
Yonaguni Island climatological average
Annual average temperature: approx. 75.9°F / Annual rainfall: approx. 2348 mm / Summer humidity: 70%–80% / Rainiest month: September
Yonaguni Island monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
66.2°F
185
February
67.5°F
166.7
March
70.3°F
99.3
April
75.2°F
139.4
May
77.2°F
206.4
June
82.4°F
203
July
85.3°F
107.7
August
84.6°F
108.3
September
81.3°F
404.9
October
78.6°F
263.5
November
74.8°F
233.7
December
68.5°F
230.1
Yonaguni Island weather for the next seven days
7/17
Friday
Partly Cloudy
84.8°F/82.9°F
7/18
Saturday
Sunny
85.1°F/83.1°F
7/19
Sunday
Sunny
85.5°F/82.8°F
7/20
Monday
Patchy rain nearby
84.2°F/83°F
7/21
Tuesday
Patchy rain nearby
84.8°F/83.2°F
7/22
Wednesday
Sunny
84.4°F/82.3°F
7/23
Thursday
Partly Cloudy
84°F/82.6°F
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