St. Charles, Missouri, United States of America: What to pack, what to wear, and when to go [2018]

Traveling to St. Charles, Missouri, United States of America? If you're planning to go to St. Charles, here is some important information about when to go, what to wear, and what to pack:

When to go to St. Charles, Missouri, United States of America

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

What to wear/what to pack for St. Charles, Missouri, United States of America by month

January

Traveling to St. Charles in January, you will notice that it is brisk. Expect it to rain a bit less than half of the time. Daytime temperatures are in the low 30s F (single digits C).

What to wear/what to pack:

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

February

February in St. Charles can be very chilly.

The rain/snow can amount to several inches/centimeters.

During this time, temperatures average in the 30s F (single digits C) to 40s F (single digits C), although night temperatures can dip into the low 20s F (single digits below 0 C).

What to wear/what to pack:

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

March

March in this region can be chilly. Temperatures average in the 50s F (low 10s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

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

April

Traveling to St. Charles in April, you will notice that it is mild and somewhat rainy. Expect it to rain about a third of the time. Daytime temperatures are in the high 60s F (low 10s C).

What to wear/what to pack:

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

May

May in St. Charles is warm and somewhat rainy.

The rain can amount to several inches/centimeters. During this time, temperatures average in the 60s F (high 10s C) to high 70s F (mid 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
  • Skirts
  • Rain coat
  • Waterproof luggage
  • Umbrella
  • Waterproof footwear
  • Sandals
  • Shorts or short pants
  • Light footwear
  • Dresses
  • Sunscreen lotion

June

If you are traveling to St. Charles in June, you will notice that it can be sweltering. Expect it to rain about a third of the time. Daytime temperatures are in the 80s F (low 20s C).

What to wear/what to pack:

  • Umbrella
  • Rain coat
  • Dresses
  • Sunglasses
  • Short sleeve shirts
  • Waterproof luggage
  • Sandals
  • Waterproof footwear
  • Skirts
  • Shorts
  • Sunscreen lotion

July

If you are traveling to St. Charles in July, you will notice that it is consistently hot. Expect it to rain 5-10 days this month. Daytime temperatures are in the low 80s F (low 30s C).

What to wear/what to pack:

  • Sunglasses
  • Dresses
  • Shorts
  • Sandals
  • Umbrella
  • Rain coat
  • Skirts
  • Waterproof luggage
  • Sunscreen lotion
  • Waterproof footwear
  • Short sleeve shirts

August

August in St. Charles is really hot.

The rain can amount to several inches/centimeters. During this time, temperatures average in the high 80s F (low 30s C), although night temperatures can dip into the low 60s F (mid 10s C).

What to wear/what to pack:

  • Waterproof footwear
  • Short sleeve shirts
  • Sunglasses
  • Shorts
  • Dresses
  • Rain coat
  • Sunscreen lotion
  • Umbrella
  • Skirts
  • Waterproof luggage
  • Sandals

September

September in St. Charles is pretty consistently hot.

The rain can amount to several inches/centimeters. During this time, temperatures average in the low 80s F (high 20s C), although night temperatures can dip into the low 50s F (single digits C).

What to wear/what to pack:

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

October

October in St. Charles is mild. The average overnight temperatures in the area are in the 40s F (single digits C), with a few days below 32 F (single digits C). It tends to rain 5-10 days this month.

What to wear/what to pack:

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

November

November in St. Charles is relatively cool. The average overnight temperatures in the area are in the 30s F (single digits C). It tends to rain about a third of the time.

What to wear/what to pack:

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

December

Traveling to St. Charles in December, you will notice that it is pretty cool. Expect it to rain regularly. Daytime temperatures are in the low 40s F (single digits C).

What to wear/what to pack:

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

Year-round what to wear/what to pack for St. Charles, Missouri, United States of America

Here are some general tips on what to wear in St. Charles, 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 St. Charles
  • Appropriate museum wear

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