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

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

When to go to Koshu, Japan

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

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

January

January in Koshu can be brisk. The average overnight temperatures in the area are in the 20s F (single digits below 0 C).

What to wear/what to pack:

  • Heavy jacket
  • Warm pants or jeans
  • Cold weather footwear
  • Heavy socks
  • Sweaters
  • Gloves or mittens

February

February in Koshu can be very chilly. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the high 40s F (single digits C).

What to wear/what to pack:

  • Heavy jacket
  • Gloves or mittens
  • Sweaters
  • Warm pants or jeans
  • Cold weather footwear
  • Heavy socks

March

March is chilly. Temperatures average in the 50s F (low 10s C) during the day.

What to wear/what to pack:

  • Jacket or coat
  • Standard footwear
  • Light gloves or mittens
  • Warm pants or jeans
  • Socks
  • Fleeces

April

April in Koshu is mild. The rain can amount to several inches/centimeters. During this time, temperatures average in the 60s F (high 10s C).

What to wear/what to pack:

  • Socks
  • Pants or jeans
  • Long skirts
  • Dresses
  • Light jacket or fleece
  • Long sleeve shirts or blouses
  • Standard footwear

May

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

What to wear/what to pack:

  • Long and short sleeve shirts
  • Skirts
  • Shorts or short pants
  • Sandals
  • Light footwear
  • Dresses
  • Sunscreen lotion

June

If you are traveling to Koshu in June, you will notice that it is warm. Daytime temperatures are in the high 70s F (mid 20s C).

What to wear/what to pack:

  • Dresses
  • Light footwear
  • Shorts or short pants
  • Sunscreen lotion
  • Skirts
  • Sandals
  • Long and short sleeve shirts

July

If you vacation in Koshu during July, you are likely to find that it is constantly hot.

Temperatures tend to hover around the 80s F (low 30s C) during the day, while at night they can dip into the low 60s F (low 20s C).

What to wear/what to pack:

  • Dresses
  • Short sleeve shirts
  • Skirts
  • Sandals
  • Sunglasses
  • Shorts
  • Sunscreen lotion

August

If you visit Koshu during August, you are likely to find that it can be sweltering.

Temperatures tend to hover around the high 80s F (low 30s C) during the day, while at night they can dip into the low 60s F (low 20s C).

What to wear/what to pack:

  • Skirts
  • Dresses
  • Sunglasses
  • Sandals
  • Short sleeve shirts
  • Sunscreen lotion
  • Shorts

September

September here is extremely warm. Temperatures average in the low 80s F (high 20s C) during the day.

What to wear/what to pack:

  • Dresses
  • Shorts or short pants
  • Long and short sleeve shirts
  • Light footwear
  • Skirts
  • Sunscreen lotion
  • Sandals

October

Traveling to Koshu in October, you will notice that it is balmy. Daytime temperatures are in the low 60s F (low 20s C).

What to wear/what to pack:

  • Long sleeve shirts or blouses
  • Light jacket or fleece
  • Pants or jeans
  • Dresses
  • Standard footwear
  • Socks
  • Long skirts

November

November in Koshu is cool. The average overnight temperatures in the area are in the high 30s F (single digits C).

What to wear/what to pack:

  • Jacket or coat
  • Standard footwear
  • Socks
  • Fleeces
  • Light gloves or mittens
  • Warm pants or jeans

December

December in Koshu is brisk. The average overnight temperatures in the area are in the low 30s F (single digits below 0 C).

What to wear/what to pack:

  • Fleeces
  • Standard footwear
  • Jacket or coat
  • Light gloves or mittens
  • Warm pants or jeans
  • Socks

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

Here are some general tips on what to wear in Koshu, 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 Koshu
  • Bicycle friendly attire, if you plan on biking anywhere

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