Question 1

Is Hannan safe to visit?

Accepted Answer

Travelia rates Hannan, Japan “safe”, following US State Department and UK FCDO travel advisories.

Question 2

What is the sea temperature in Hannan in July?

Accepted Answer

The sea off Hannan averages about 25°C in July.

Question 3

When is the best time to visit Hannan?

Accepted Answer

Hannan is warmest in Aug and driest in Dec; mild (18–28°C) months are May, Jun, Jul, Aug, Sep, Oct.

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	5	5	8	14	18	22	26	27	23	18	12	8
Sea °C	15	14	14	16	18	21	25	27	26	23	20	17
Rain (days)	50	60	98	140	149	226	154	114	209	124	81	40

Hannan, Japan

Climate by month