Ko Samui, Thailand: What to pack, what to wear, and when to go [2018]

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

When to go to Ko Samui, Thailand

Based on the climate and weather in Ko Samui, the best time to go is March. See below for details.

What to wear/what to pack for Ko Samui, Thailand by month

January

In January, Ko Samui is hot and somewhat rainy. Temperatures routinely are in the 80s F (high 20s C) range.

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

What to wear/what to pack:

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

February

February for Ko Samui is extremely hot. Temperatures average in the 80s F (low 20s C) during the day. It rains occasionally.

What to wear/what to pack:

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

March

If you vacation in Ko Samui during March, 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 high 70s F (mid 20s C).

In terms of precipitation, you can expect it to rain once in a while.

What to wear/what to pack:

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

April

April in Ko Samui can be very hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 80s F (low 30s C).

What to wear/what to pack:

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

May

If you vacation in Ko Samui during May, you are likely to find that it is really hot and somewhat rainy. Temperatures tend to hover around the low 90s F (low 30s C) during the day, while at night they can dip into the high 70s F (mid 20s C).

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

What to wear/what to pack:

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

June

In June, Ko Samui is really hot and somewhat rainy. Temperatures routinely are in the low 80s F (low 30s C) range.

At night, lows are in the high 70s F (mid 20s C). This is also a rainy time for Ko Samui, with several of the days of the month having rain.

What to wear/what to pack:

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

July

If you are traveling to Ko Samui in July, you will notice that it is really hot and somewhat rainy. Expect it to rain about half of the time. Daytime temperatures are in the low 80s F (low 30s C).

What to wear/what to pack:

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

August

August in Ko Samui can be sweltering and somewhat rainy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 80s F (high 20s C) to high 80s F (low 30s C).

What to wear/what to pack:

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

September

If you go to Ko Samui in September, you will notice that it is really hot and somewhat rainy. Expect it to rain about half of the time. Daytime temperatures are in the high 80s F (low 30s C).

What to wear/what to pack:

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

October

October in Ko Samui is really hot and very rainy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 80s F (high 20s C) to high 80s F (low 30s C).

What to wear/what to pack:

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

November

November in Ko Samui is constantly hot and very rainy. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 80s F (high 20s C) to 80s F (low 20s C).

What to wear/what to pack:

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

December

If you visit Ko Samui during December, you are likely to find that it is hot and somewhat rainy. Temperatures tend to hover around the 80s F (high 20s C) during the day, while at night they can dip into the 70s F (mid 20s C).

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

What to wear/what to pack:

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

Year-round what to wear/what to pack for Ko Samui, Thailand

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

  • A plug adadpter that supports outlet types A, B, C and O
  • A SIM card that works in Ko Samui
  • If you are visiting a temple, pack respectful clothing
  • Theft can be a problem, so pack theft protection, including locks for luggage and a money belt or pouch
  • Appropriate museum wear
  • Bicycle friendly attire, if you plan on biking anywhere

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