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

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

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

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

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

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

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

January

If you visit San Francisco during January, you might notice that it is 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 a bit less than half of the time.

What to wear/what to pack:

February

In February, San Francisco is chilly and somewhat rainy. Temperatures routinely are in the low 50s 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 high 40s F (single digits C).

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

What to wear/what to pack:

March

March in San Francisco is crisp 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), although night temperatures can dip into the low 40s F (single digits C).

What to wear/what to pack:

April

April for San Francisco can be chilly. Temperatures average in the low 60s F (high 10s C) during the day. It rains occasionally.

What to wear/what to pack:

May

If you visit San Francisco during May, you will probably find that it is relatively cool and dry with little rain. Temperatures tend to hover around the 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

If you vacation in San Francisco during June, you may see that it is mild and very dry with almost no rain. Temperatures tend to hover around the 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 70 and 80% during the day.

What to wear/what to pack:

July

July here is balmy and very dry with almost no rain. Temperatures average in the 60s F (high 10s C) during the day.

What to wear/what to pack:

August

August is balmy and very dry with almost no rain. Temperatures average in the high 60s F (high 10s C) during the day.

What to wear/what to pack:

September

September here 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:

October

If you are traveling to San Francisco in October, you will notice that it is mild and dry with little rain. Expect it to rain once in a while. Daytime temperatures are in the high 60s F (low 20s C).

What to wear/what to pack:

November

November in San Francisco is relatively cool. 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:

December

If you visit San Francisco during December, you are likely to notice that it is relatively cool 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 high 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 5-10 days this month.

What to wear/what to pack:

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