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

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

When to go to Castro Valley, California, United States of America

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

What to wear/what to pack for Castro Valley, California, United States of America by month

January

January in Castro Valley is cool. The rain can amount to several inches/centimeters.

During this time, temperatures average in the low 40s F (single digits C) to high 50s F (mid 10s C), although night temperatures can dip into the low 30s F (single digits C).

What to wear/what to pack:

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

February

In February, Castro Valley is relatively cool. Temperatures routinely are in the low 60s F (mid 10s C) and about half of the time jump into the low 60s F (mid 10s C) range.

At night, lows are in the 40s F (single digits C). This is also a rainy time for Castro Valley, with several of the days of the month having rain.

What to wear/what to pack:

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

March

March is chilly. Temperatures average in the 60s F (high 10s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

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

April

If you are traveling to Castro Valley in April, you will notice that it is mild. Expect it to rain about a third of the time. Daytime temperatures are in the 60s F (high 10s C).

What to wear/what to pack:

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

May

May is balmy and dry with little rain. Temperatures average in the high 60s F (low 20s C) during the day.

What to wear/what to pack:

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

June

If you vacation in Castro Valley during June, you are likely to find that it is mild and very dry with almost no rain.

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

What to wear/what to pack:

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

July

July in Castro Valley is a perfect temperature and very dry with almost no rain. Temperatures average in the low 70s F (low 20s C) during the day.

What to wear/what to pack:

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

August

Traveling to Castro Valley in August, you will notice that it is a perfect temperature and very dry with almost no rain. Daytime temperatures are in the 70s F (mid 20s C).

What to wear/what to pack:

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

September

September in this region is a perfect temperature and very dry with almost no rain. Temperatures average in the 70s F (mid 20s C) during the day.

What to wear/what to pack:

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

October

If you vacation in Castro Valley during October, you are likely to find that it is balmy and dry with little rain. Temperatures tend to hover around the low 70s F (low 20s C) during the day, while at night they can dip into the 50s F (low 10s C).

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

What to wear/what to pack:

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

November

If you are traveling to Castro Valley in November, you will notice that it is chilly. Expect it to rain about a third of the time. Daytime temperatures are in the 60s F (high 10s C).

What to wear/what to pack:

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

December

December in Castro Valley is chilly. The average overnight temperatures in the area are in the low 40s F (single digits C).

What to wear/what to pack:

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

Year-round what to wear/what to pack for Castro Valley, California, United States of America

Here are some general tips on what to wear in Castro Valley, 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 Castro Valley

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