San Bruno, California, United States of America: What to pack, what to wear, and when to go [2021]

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

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When to go to San Bruno, California, United States of America

Based on the climate and weather in San Bruno, the best time to go is July. See below for details.

Important esssentials for San Bruno, California, United States of America

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

What to wear/what to pack for San Bruno, California, United States of America by month

January

If you go to San Bruno in January, you will notice that it is chilly and somewhat rainy. Expect it to rain regularly. Daytime temperatures are in the 50s F (low 10s C).

What to wear/what to pack:

February

If you visit San Bruno during February, you are likely to see that it can be chilly and somewhat rainy. Temperatures tend to hover around the high 50s F (mid 10s C) during the day, while at night they can dip into the 40s F (single digits C).

Humidity is generally between 60 and 70% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

March

March in San Bruno is relatively cool and somewhat rainy. The rain can amount to several inches/centimeters. During this time, temperatures average in the 50s F (low 10s C) to low 60s F (mid 10s C).

What to wear/what to pack:

April

Traveling to San Bruno in April, you will notice that it is crisp. Expect it to rain once in a while. Daytime temperatures are in the 60s F (high 10s C).

What to wear/what to pack:

May

If you visit San Bruno during May, you are likely to find that it is balmy and dry with little rain. Temperatures tend to hover around the high 60s F (high 10s C) during the day, while at night they can dip into the low 50s F (low 10s C).

Humidity is generally between 60 and 70% during the day.

What to wear/what to pack:

June

June in this region is mild and very dry with almost no rain. Temperatures average in the low 60s F (low 20s C) during the day.

What to wear/what to pack:

July

If you visit San Bruno during July, you are likely to see that it is balmy 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).

Humidity is generally between 60 and 70% during the day.

What to wear/what to pack:

August

If you are traveling to San Bruno in August, you will notice that it is mild and very dry with almost no rain. Daytime temperatures are in the low 70s F (low 20s C).

What to wear/what to pack:

September

September in San Bruno is warm and very dry with almost no rain. Temperatures average in the 70s F (low 20s C) during the day.

What to wear/what to pack:

October

October here is balmy and dry with little rain. Temperatures average in the low 70s F (low 20s C) during the day. It rains sometimes.

What to wear/what to pack:

November

November here can be chilly. Temperatures average in the low 60s F (high 10s C) during the day. It rains a bit less than half of the time.

What to wear/what to pack:

December

In December, San Bruno is cool and somewhat rainy. Temperatures routinely are in the 50s F (mid 10s C) range. At night, lows are in the low 40s F (single digits C).

This is also a rainy time for San Bruno, with several of the days of the month having rain. In December, humidity reaches as high as 70%.

What to wear/what to pack:

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