Ōkunoshima, Japan: What to pack, what to wear, and when to go [2018]

Traveling to Ōkunoshima, Japan? If you're planning to go to Ōkunoshima, here is some important information about when to go, what to wear, and what to pack:

When to go to Ōkunoshima, Japan

Based on the climate and weather in Ōkunoshima, the best time to go is October. See below for details.

What to wear/what to pack for Ōkunoshima, Japan by month

January

January in Ōkunoshima is brisk. The average overnight temperatures in the area are in the 30s F (single digits C).

What to wear/what to pack:

  • Jacket or coat
  • Waterproof luggage
  • Fleeces
  • Standard footwear
  • Waterproof footwear
  • Light gloves or mittens
  • Warm pants or jeans
  • Rain coat
  • Socks
  • Umbrella

February

February in Ōkunoshima is cold. The average overnight temperatures in the area are in the high 30s F (single digits C).

What to wear/what to pack:

  • Umbrella
  • Light gloves or mittens
  • Fleeces
  • Socks
  • Warm pants or jeans
  • Waterproof luggage
  • Waterproof footwear
  • Rain coat
  • Jacket or coat
  • Standard footwear

March

In March, Ōkunoshima is cool. Temperatures routinely are in the high 50s F (mid 10s C) range.

At night, lows are in the 40s F (single digits C). This is also a rainy time for Ōkunoshima, with more than half of the days of the month having rain.

What to wear/what to pack:

  • Long sleeve shirts or blouses
  • Standard footwear
  • Umbrella
  • Rain coat
  • Dresses
  • Pants or jeans
  • Waterproof luggage
  • Waterproof footwear
  • Socks
  • Light jacket or fleece
  • Long skirts

April

April here is mild. Temperatures average in the 60s F (high 10s C) during the day.

What to wear/what to pack:

  • Umbrella
  • Dresses
  • Rain coat
  • Long sleeve shirts or blouses
  • Pants or jeans
  • Waterproof luggage
  • Light jacket or fleece
  • Long skirts
  • Waterproof footwear
  • Standard footwear
  • Socks

May

Traveling to Ōkunoshima in May, you will notice that it is a perfect temperature. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

  • Sunscreen lotion
  • Sandals
  • Dresses
  • Light footwear
  • Skirts
  • Umbrella
  • Shorts or short pants
  • Long and short sleeve shirts
  • Waterproof footwear
  • Rain coat
  • Waterproof luggage

June

In June, Ōkunoshima is extremely warm. Temperatures routinely are in the low 80s F (high 20s C) range.

At night, lows are in the high 60s F (low 20s C). This is also a rainy time for Ōkunoshima, with more than half of the days of the month having rain.

What to wear/what to pack:

  • Waterproof footwear
  • Rain coat
  • Light footwear
  • Umbrella
  • Waterproof luggage
  • Sunscreen lotion
  • Dresses
  • Skirts
  • Long and short sleeve shirts
  • Shorts or short pants
  • Sandals

July

July in Ōkunoshima is really hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the 80s F (low 30s C).

What to wear/what to pack:

  • Umbrella
  • Shorts
  • Waterproof luggage
  • Sunglasses
  • Dresses
  • Waterproof footwear
  • Skirts
  • Short sleeve shirts
  • Rain coat
  • Sandals
  • Sunscreen lotion

August

In August, Ōkunoshima is consistently hot. Temperatures routinely are in the 80s F (low 30s C) range.

At night, lows are in the 70s F (mid 20s C). This is also a rainy time for Ōkunoshima, with more than half of the days of the month having rain.

What to wear/what to pack:

  • Short sleeve shirts
  • Umbrella
  • Skirts
  • Sunscreen lotion
  • Waterproof footwear
  • Waterproof luggage
  • Dresses
  • Sunglasses
  • Shorts
  • Rain coat
  • Sandals

September

Traveling to Ōkunoshima in September, you will notice that it is extremely warm. Daytime temperatures are in the low 80s F (high 20s C).

What to wear/what to pack:

  • Waterproof footwear
  • Sandals
  • Umbrella
  • Sunglasses
  • Sunscreen lotion
  • Rain coat
  • Shorts
  • Waterproof luggage
  • Skirts
  • Dresses
  • Short sleeve shirts

October

If you go to Ōkunoshima in October, you will notice that it is warm. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

  • Sunscreen lotion
  • Dresses
  • Light footwear
  • Waterproof luggage
  • Waterproof footwear
  • Umbrella
  • Long and short sleeve shirts
  • Sandals
  • Skirts
  • Shorts or short pants
  • Rain coat

November

In November, Ōkunoshima is chilly. Temperatures routinely are in the 60s F (high 10s C) range.

At night, lows are in the low 50s F (single digits C). This is also a rainy time for Ōkunoshima, with several of the days of the month having rain.

What to wear/what to pack:

  • Light jacket or fleece
  • Socks
  • Long sleeve shirts or blouses
  • Waterproof luggage
  • Dresses
  • Umbrella
  • Rain coat
  • Pants or jeans
  • Long skirts
  • Standard footwear
  • Waterproof footwear

December

If you vacation in Ōkunoshima during December, you are likely to find that it is chilly.

Temperatures tend to hover around the 50s F (low 10s C) during the day, while at night they can dip into the high 30s F (single digits C).

What to wear/what to pack:

  • Fleeces
  • Light gloves or mittens
  • Standard footwear
  • Warm pants or jeans
  • Waterproof footwear
  • Rain coat
  • Socks
  • Umbrella
  • Waterproof luggage
  • Jacket or coat

Year-round what to wear/what to pack for Ōkunoshima, Japan

Here are some general tips on what to wear in Ōkunoshima, as well as several items to remember to pack when traveling there.

  • A plug adadpter that supports outlet types A and B
  • A SIM card that works in Ōkunoshima
  • Appropriate museum wear

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