Costa Mesa, California, United States of America: What to pack, what to wear, and when to go [2018]

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

When to go to Costa Mesa, California, United States of America

Based on the climate and weather in Costa Mesa, the best time to go is September. See below for details.

What to wear/what to pack for Costa Mesa, California, United States of America by month

January

January in this region is relatively cool. Temperatures average in the 60s F (high 10s C) during the day.

What to wear/what to pack:

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

February

February in Costa Mesa is mild. The average overnight temperatures in the area are in the 40s F (single digits C).

What to wear/what to pack:

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

March

If you go to Costa Mesa in March, you will notice that it is balmy. Daytime temperatures are in the 60s F (high 10s C).

What to wear/what to pack:

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

April

April in Costa Mesa is balmy. Temperatures average in the low 60s F (low 20s C) during the day.

What to wear/what to pack:

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

May

If you are traveling to Costa Mesa in May, you will notice that it is balmy. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

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

June

If you vacation in Costa Mesa during June, you are likely to find that it is a perfect temperature.

Temperatures tend to hover around the 70s F (mid 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C).

What to wear/what to pack:

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

July

July is hot. Temperatures average in the low 80s F (high 20s C) during the day.

What to wear/what to pack:

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

August

Traveling to Costa Mesa in August, you will notice that it is hot. Daytime temperatures are in the low 80s F (high 20s C).

What to wear/what to pack:

  • Shorts
  • Sunscreen lotion
  • Sandals
  • Short sleeve shirts
  • Sunglasses
  • Skirts
  • Dresses
  • If you're going to the beach, bathing suits, swimwear

September

If you vacation in Costa Mesa during September, you are likely to find that it is pretty consistently hot.

Temperatures tend to hover around the low 80s F (high 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C).

What to wear/what to pack:

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

October

October in Costa Mesa is warm. Temperatures average in the high 70s F (mid 20s C) during the day.

What to wear/what to pack:

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

November

If you vacation in Costa Mesa during November, you are likely to find that it is balmy.

Temperatures tend to hover around the low 60s F (low 20s C) during the day, while at night they can dip into the low 50s F (single digits C).

What to wear/what to pack:

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

December

December in Costa Mesa is crisp. The rain can amount to several inches/centimeters. During this time, temperatures average in the 60s F (high 10s C), although night temperatures can dip into the low 40s F (single digits C).

What to wear/what to pack:

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

Year-round what to wear/what to pack for Costa Mesa, California, United States of America

Here are some general tips on what to wear in Costa Mesa, 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 Costa Mesa
  • If you are visiting a temple, pack respectful clothing
  • Appropriate museum wear

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