Iōtorishima
Island Small volcanic island in southern Japan
How to Get to Iōtorishima #
Iōtorishima is approached by local fishing or charter boats from neighboring islands in the Ryukyu group; check with regional ferry services and maritime authorities for permitted landings and seasonal schedules.
Tips for Visiting Iōtorishima #
- Tides and local currents can be strong; if approaching by small boat, consult local pilots.
- The island has limited facilities; bring water and sun protection for any short landings.
- Respect any cultural sites and local fishermen's arrangements.
Best Time to Visit Iōtorishima #
Late spring, early summer and autumn are favorable for visits; typhoon season should be avoided for safety.
Late spring/early summer - May-June
May-Jun · 22-28°C (72-82°F)
Calmer seas and pleasant temperatures for boat visits.
Autumn - September-October
Sep-Oct · 23-29°C (73-84°F)
Good weather and fewer tropical storms; calmer waters.
Weather & Climate near Iōtorishima #
Climate
Temperature & Rainfall
Temperature Range
31°
Warmest Month
8°
Coldest Month
Monthly Conditions
January
Weather
0.7
UV Index
Moderate
10.5h daylight
February
Weather
0.9
UV Index
Moderate
11.1h daylight
March
Weather
1.2
UV Index
High
11.9h daylight
April
Weather
1.5
UV Index
High
12.7h daylight
May
Weather
1.7
UV Index
Very High
13.4h daylight
June
Weather
2.0
UV Index
Very High
13.7h daylight
July
Weather
2.5
UV Index
Extreme
13.6h daylight
August
Weather
2.3
UV Index
Extreme
13.0h daylight
September
Weather
1.9
UV Index
Very High
12.2h daylight
October
Weather
1.3
UV Index
High
11.4h daylight
November
Weather
0.9
UV Index
Moderate
10.7h daylight
December
Weather
0.6
UV Index
Moderate
10.3h daylight
