San Juan Island, British Columbia, United States of America: What to pack, what to wear, and when to go [2018]

Traveling to San Juan Island, British Columbia, United States of America? If you're planning to go to San Juan Island, here is some important information about when to go, what to wear, and what to pack:

When to go to San Juan Island, British Columbia, United States of America

Based on the climate and weather in San Juan Island, the best time to go is August. See below for details.

What to wear/what to pack for San Juan Island, British Columbia, United States of America by month

January

Traveling to San Juan Island in January, you will notice that it is brisk and very rainy. Expect it to rain about half of the time. Daytime temperatures are in the 40s F (single digits C).

What to wear/what to pack:

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

February

If you vacation in San Juan Island during February, you are likely to find that it is brisk and somewhat rainy. Temperatures tend to hover around the high 40s F (single digits C) during the day, while at night they can dip into the high 30s F (single digits C).

In terms of precipitation, you can expect it to rain about half of the time.

What to wear/what to pack:

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

March

Traveling to San Juan Island in March, you will notice that it can be very chilly and somewhat rainy. Expect it to rain about half of the time. Daytime temperatures are in the low 50s F (low 10s C).

What to wear/what to pack:

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

April

If you visit San Juan Island during April, you are likely to find that it is cool and somewhat rainy. Temperatures tend to hover around the 50s F (low 10s C) during the day, while at night they can dip into the low 40s F (single digits C).

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

May

Traveling to San Juan Island in May, you will notice that it is relatively cool and somewhat rainy. Expect it to rain a bit less than half of the time.

Daytime temperatures are in the low 60s F (mid 10s C).

What to wear/what to pack:

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

June

June in this region can be chilly and somewhat rainy. Temperatures average in the 60s F (high 10s C) during the day. It rains regularly.

What to wear/what to pack:

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

July

If you visit San Juan Island during July, you are likely to find that it is balmy. Temperatures tend to hover around the high 60s F (low 20s C) during the day, while at night they can dip into the low 50s F (low 10s C).

In terms of precipitation, you can expect it to rain sometimes.

What to wear/what to pack:

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

August

If you are traveling to San Juan Island in August, you will notice that it is mild. Expect it to rain once in a while. Daytime temperatures are in the high 60s F (low 20s C).

What to wear/what to pack:

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

September

September in San Juan Island is relatively cool. The average overnight temperatures in the area are in the low 50s F (single digits C). It tends to rain a bit less than half of the time.

What to wear/what to pack:

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

October

If you are traveling to San Juan Island in October, you will notice that it is crisp and somewhat rainy. Expect it to rain about half of the time. Daytime temperatures are in the 50s F (low 10s C).

What to wear/what to pack:

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

November

In November, San Juan Island is cold and very rainy. Temperatures routinely are in the high 40s F (single digits C) and about a third of the time jump into the low 50s F (single digits C) range.

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

What to wear/what to pack:

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

December

December in San Juan Island is brisk and very rainy. The average overnight temperatures in the area are in the high 30s F (single digits C), with a few days below 28 F (single digits below 0 C).

It tends to rain about half of the time.

What to wear/what to pack:

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

Year-round what to wear/what to pack for San Juan Island, British Columbia, United States of America

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

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