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

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

When to go to Onjuku, Japan

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

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

January

If you vacation in Onjuku during January, you are likely to find that it is pretty cool, somewhat rainy and very hazy. Temperatures tend to hover around the low 50s F (single digits C) during the day, while at night they can dip into the 30s F (single digits C).

Humidity is generally between 40 and 50% during the day. In terms of precipitation, you can expect it to rain about half of the time and snow occasionally.

What to wear/what to pack:

Socks
Warm pants or jeans
Waterproof boots
Umbrella
Waterproof coat
Standard footwear
Fleeces
Light gloves or mittens
Jacket or coat

February

In February, Onjuku is pretty cool, somewhat rainy and somewhat hazy. Temperatures routinely are in the low 50s F (single digits C) range. At night, lows are in the 30s F (single digits C).

This is also a rainy time for Onjuku, with more than half of the days of the month having rain. In February, humidity reaches as high as 50%.

What to wear/what to pack:

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

March

March in Onjuku can be brisk, very rainy and somewhat hazy. Temperatures average in the 50s F (low 10s C) during the day. It rains most days.

What to wear/what to pack:

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

April

April in Onjuku is relatively cool, very rainy and somewhat hazy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 60s F (high 10s C).

What to wear/what to pack:

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

May

Traveling to Onjuku in May, you will notice that it is balmy, very rainy and somewhat hazy. Expect it to rain about half of the time. Daytime temperatures are in the high 60s F (low 20s C).

What to wear/what to pack:

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

June

If you vacation in Onjuku during June, you are likely to find that it is warm, very rainy and somewhat hazy. Temperatures tend to hover around the low 70s F (low 20s C) during the day, while at night they can dip into the low 60s F (high 10s C).

Humidity is generally around 70 during the day. In terms of precipitation, you can expect it to rain about two thirds of the time.

What to wear/what to pack:

Rain coat
Long and short sleeve shirts
If you're going to the beach, bathing suits, swimwear
Waterproof luggage
Sunscreen lotion
Skirts
Shorts or short pants
Sandals
Waterproof footwear
Dresses
Light footwear
Umbrella

July

If you visit Onjuku during July, you are likely to find that it is warm, very rainy and somewhat hazy. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the low 60s F (low 20s C).

Humidity is generally around 70 during the day. In terms of precipitation, you can expect it to rain about half of the time.

What to wear/what to pack:

Dresses
Light footwear
Umbrella
Shorts or short pants
Sunscreen lotion
Rain coat
If you're going to the beach, bathing suits, swimwear
Waterproof footwear
Sandals
Long and short sleeve shirts
Waterproof luggage
Skirts

August

In August, Onjuku is pretty consistently hot, very rainy and somewhat hazy. Temperatures routinely are in the low 80s F (high 20s C) and regularly jump into the low 90s F (low 30s C) range. At night, lows are in the low 70s F (low 20s C).

This is also a rainy time for Onjuku, with more than half of the days of the month having rain. In August, humidity reaches as high as 70%. Additionally, it is breezy.

What to wear/what to pack:

Sandals
Rain coat
Shorts
Umbrella
Dresses
If you're going to the beach, bathing suits, swimwear
Waterproof luggage
Waterproof footwear
Short sleeve shirts
Sunglasses
Sunscreen lotion
Skirts

September

September in Onjuku is warm, very rainy and somewhat hazy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 70s F (low 20s C) to high 70s F (mid 20s C).

What to wear/what to pack:

Sandals
Waterproof footwear
Skirts
Shorts or short pants
Long and short sleeve shirts
Dresses
If you're going to the beach, bathing suits, swimwear
Umbrella
Sunscreen lotion
Rain coat
Waterproof luggage
Light footwear

October

If you visit Onjuku during October, you are likely to find that it is mild, very rainy and very hazy. Temperatures tend to hover around the low 60s F (low 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain about half of the time.

What to wear/what to pack:

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

November

In November, Onjuku is relatively cool, somewhat rainy and very hazy. Temperatures routinely are in the low 60s F (high 10s C) and once in a while jump into the low 70s F (low 20s C) range. At night, lows are in the high 40s F (single digits C).

This is also a rainy time for Onjuku, with several of the days of the month having rain. In November, humidity reaches as high as 60%.

What to wear/what to pack:

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

December

If you vacation in Onjuku during December, you are likely to find that it is chilly, somewhat rainy and extremely hazy. 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).

Humidity is generally between 40 and 50% during the day. In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

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

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

Here are some general tips on what to wear in Onjuku, 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 Onjuku

Check out our guides for these other locations: Lyndhurst, England, United Kingdom, Cuyo Islands, Philippines, Kushinagar, India, Mars, Pennsylvania, United States of America, Staffordshire, England, United Kingdom, Manus, Papua New Guinea, Golaghat, India, Decorah, Iowa, United States of America, Balestrate, Italy, Copper Harbor, Michigan, United States of America, and Batavia, New York, United States of America.