Izu Oshima

How to get there

When to go

Best months: May, July, August

Month Avg high Avg low Rainfall
January 11° 106 mm
February 12° 128 mm
March 14° 10° 189 mm
April 17° 14° 197 mm
May 20° 18° 186 mm
June 22° 20° 312 mm
July 25° 24° 220 mm
August 27° 26° 157 mm
September 26° 23° 281 mm
October 22° 19° 262 mm
November 18° 15° 178 mm
December 14° 11° 96 mm

Averages for 2015-2024 from the ERA5 reanalysis. Highlighted months have an average high between 18 and 30 degrees and under 80 mm of rain.