Kayama Island Island
Uninhabited islet in Okinawan waters
A small Ryukyu island near Ishigaki, Kayama Island sees snorkelers and local fishers at short beaches and coral fringes; access is by boat from nearby islands.
Kayama Island at a Glance#
Address: Kayama Island (Ryukyu Islands), Japan
How to Get to Kayama Island#
Access typically by local ferry or charter from larger Ryukyu islands; schedules are seasonal and depend on demand. Check regional ferry operators for current timetables.
Tips for Visiting Kayama Island#
- Check tide tables and local transport - some Ryukyu islands have limited connections.
- Respect local customs and any protected areas-many smaller isles maintain traditional restrictions.
- Bring reef-safe sunscreen if planning to snorkel; coral can be fragile around smaller islands.
Best Time to Visit Kayama Island#
Late spring through early autumn for marine activities and island access.
Late spring to early autumn
May-October · 22-30°C
Warmer seas and the best snorkelling conditions.
Winter
December-February · 15-20°C
Milder than mainland Japan but cooler for swimming; quieter for visits.
Weather & Climate near Kayama Island#
Climate
Subtropical climate with hot summers (peaking in July) and mild winters (coldest in January). Temperatures range from 16°C to 31°C. Heavy rainfall (2133 mm/year), wettest in August.
Air Quality:
AQI 45
Good
Best Time to Visit
AugustJuneSeptember
Temperature & Rainfall
Temperature Range
31°
Warmest Month
11°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Acceptable | 16° - 20° | 18° | 153 mm | overcast | 78% | 4.4 m/s | 0.8 moderate | 10.7h |
| February | Good | 16° - 20° | 18° | 137 mm | overcast | 79% | 4.9 m/s | 1.1 high | 11.2h |
| March | Good | 18° - 22° | 20° | 137 mm | overcast | 79% | 3.6 m/s | 1.3 high | 11.9h |
| April | Good | 21° - 25° | 23° | 158 mm | overcast | 82% | 3.6 m/s | 1.6 very high | 12.6h |
| May | Good | 23° - 27° | 25° | 209 mm | overcast | 84% | 4.0 m/s | 2.0 very high | 13.2h |
| June | Very Good | 25° - 30° | 31° | 182 mm | partly cloudy | 86% | 4.0 m/s | 2.3 extreme | 13.5h |
| July | Good | 26° - 31° | 35° | 160 mm | partly cloudy | 83% | 4.4 m/s | 2.6 extreme | 13.4h |
| August | Very Good | 26° - 31° | 33° | 233 mm | partly cloudy | 82% | 4.5 m/s | 2.3 extreme | 12.9h |
| September | Very Good | 25° - 30° | 31° | 220 mm | partly cloudy | 81% | 5.0 m/s | 1.9 very high | 12.2h |
| October | Very Good | 23° - 27° | 25° | 210 mm | partly cloudy | 78% | 5.0 m/s | 1.5 high | 11.5h |
| November | Good | 21° - 24° | 22° | 184 mm | overcast | 78% | 5.2 m/s | 1.0 high | 10.8h |
| December | Acceptable | 18° - 22° | 20° | 150 mm | overcast | 77% | 4.6 m/s | 0.8 moderate | 10.5h |
