Southwest Harbor, Maine, United States of America: What to pack, what to wear, and when to go [2018]

Traveling to Southwest Harbor, Maine, United States of America? If you're planning to go to Southwest Harbor, here is some important information about when to go, what to wear, and what to pack:

When to go to Southwest Harbor, Maine, United States of America

Based on the climate and weather in Southwest Harbor, the best time to go is August. See below for details.

What to wear/what to pack for Southwest Harbor, Maine, United States of America by month

January

In January, Southwest Harbor is very cold. Temperatures routinely are in the low 30s F (single digits below 0 C) and about a third of the time jump into the low 40s F (single digits C) range.

At night, lows are in the 10s F (10+ below zero C). This is also a rainy time for Southwest Harbor, with a few of the days of the month having rain.

What to wear/what to pack:

Very heavy socks
Waterproof coat
Scarf
Umbrella
Waterproof boots
Pajamas, such as sweats
Sweaters
Fleeces
Gloves
Insulated boots
Multiple layer jacket shell
Thermal undergarments

February

February is frigid. Temperatures average in the 30s F (single digits C) during the day. It rains regularly and snows occasionally.

What to wear/what to pack:

Very heavy socks
Insulated boots
Thermal undergarments
Fleeces
Sweaters
Gloves
Multiple layer jacket shell
Waterproof boots
Scarf
Umbrella
Pajamas, such as sweats
Waterproof coat

March

If you go to Southwest Harbor in March, you will notice that it can be brisk. Expect it to rain about a third of the time and snow occasionally. Daytime temperatures are in the low 40s F (single digits C).

What to wear/what to pack:

Warm pants or jeans
Heavy socks
Waterproof coat
Heavy jacket
Waterproof boots
Sweaters
Gloves or mittens
Umbrella
Cold weather footwear

April

If you go to Southwest Harbor in April, you will notice that it can be brisk. Expect it to rain sometimes. Daytime temperatures are in the low 50s F (low 10s C).

What to wear/what to pack:

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

May

If you visit Southwest Harbor during May, you are likely to find that it is relatively cool. Temperatures tend to hover around the 60s F (high 10s C) during the day, while at night they can dip into the 40s F (single digits C).

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

What to wear/what to pack:

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

June

June in Southwest Harbor is warm. The rain can amount to several inches/centimeters.

During this time, temperatures average in the 60s F (high 10s C) to 70s F (low 20s C), although night temperatures can dip into the low 50s F (single digits C).

What to wear/what to pack:

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

July

If you go to Southwest Harbor in July, you will notice that it is warm. Expect it to rain occasionally. Daytime temperatures are in the high 70s F (mid 20s C).

What to wear/what to pack:

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

August

August here is a perfect temperature. Temperatures average in the high 70s F (mid 20s C) during the day. It rains occasionally.

What to wear/what to pack:

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

September

September in Southwest Harbor is mild. The rain can amount to several inches/centimeters.

During this time, temperatures average in the low 60s F (mid 10s C) to low 70s F (low 20s C), although night temperatures can dip into the low 50s F (single digits C).

What to wear/what to pack:

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

October

If you are traveling to Southwest Harbor in October, you will notice that it is relatively cool. Expect it to rain once in a while. Daytime temperatures are in the high 50s F (mid 10s C).

What to wear/what to pack:

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

November

November can be brisk. Temperatures average in the high 40s F (single digits C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

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

December

December in Southwest Harbor is cold. The average overnight temperatures in the area are in the low 20s F (single digits below 0 C), with a few days below 0 F (10+ below zero C).

It tends to rain a bit less than half of the time. It also snows sometimes.

What to wear/what to pack:

Waterproof boots
Sweaters
Heavy socks
Umbrella
Heavy jacket
Gloves or mittens
Waterproof coat
Warm pants or jeans
Cold weather footwear

Year-round what to wear/what to pack for Southwest Harbor, Maine, United States of America

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

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