The tour leader was very friendly, and the itinerary was packed with sights. Some places, like Kouri Island, were a bit rushed, but that was unavoidable due to the distance. Also, if you're planning to visit the aquarium on the southern itinerary, remember not to buy tickets online yourself; the tour leader will give everyone a 30% discount coupon on the bus.
The bus had comfortable seats with cup holders/hooks and a large luggage rack. The tour guide was great, explaining a basic history of Okinawa. I recommend bringing an umbrella/slippers. Unfortunately, I chose the worst weather day 😂, so the photos don't look great, but it must be beautiful on a sunny day. The price was also cheaper than taking the bus (3700 yen round trip to Naba + 2100 yen entrance fee). Just going to the aquarium alone cost HKD290.
Anonymous User
Solo traveler
Kouri Island Weather, Climate and Best Time to Visit
Data source:Meteostat Update date:2025-09
Kouri Island year round climate
Spring (March–May): Average 19.3–23.2°C, warm and comfortable climate, but rainfall increases gradually. Rainfall increases gradually from March to May, so be prepared for rain. Common activities: snorkeling, beach walks, enjoying the beautiful seascape. Recommended clothing: light and breathable long-sleeved clothing, light jacket, sun protection clothing.
Summer (June–August): Average 26.3–29.5°C, hot and humid, with more rainfall, especially in June. Common activities: swimming, water activities, enjoying the sun on the beach. Recommended clothing: light and breathable clothing, swimwear, hat, sunscreen.
Autumn (September–November): Average 25.8–22.7°C, comfortable and pleasant climate, with less rainfall. Common activities: diving, fishing, enjoying the beautiful sunset. Recommended clothing: long-sleeved shirts, light jackets, be aware of the larger temperature difference between morning and evening.
Winter (December–February): Average 16.9–18.1°C, mild climate, relatively dry. Common activities: sightseeing, leisurely walks enjoying the scenery, strong sea winds in winter, pay attention to keeping warm. Recommended clothing: light and warm clothing, jacket.
Kouri Island climatological average
Annual average temperature: approx. 23.1°C / Annual rainfall: approx. 2742 mm / Summer humidity: 75%–85% / Rainiest month: June
Kouri Island monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
16.9°C
84.6
February
18°C
106.2
March
19.3°C
231.8
April
22.4°C
189.5
May
23.2°C
332.6
June
26.3°C
534
July
29.5°C
194.6
August
28.8°C
348.8
September
28°C
218.2
October
25.8°C
152.7
November
22.7°C
203.1
December
18.1°C
146.1
Kouri Island weather for the next seven days
6/6
Saturday
Moderate rain
26.9°C/24.3°C
6/7
Sunday
Moderate rain
24.8°C/24.1°C
6/8
Monday
Moderate rain
26.5°C/24.1°C
6/9
Tuesday
Heavy rain
24.4°C/23.8°C
6/10
Wednesday
Heavy rain
23.7°C/20.4°C
6/11
Thursday
Heavy rain
20.3°C/19.1°C
6/12
Friday
Heavy rain
23.8°C/20.8°C
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