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When is the Best Time to Explore San Francisco?

If you're wondering when is the best time of year to travel to San Francisco, you may find this information about seasonal weather helpful when planning your trip. The warmest months in San Francisco are typically March and April, whereas the coldest months are usually December and November. The months with the most rain are October and September, whereas January and February have the least.

Here's an overview on how much rain you can expect and what the temperatures are going to be like:

• From January to March, the average daytime temperature is 36°C and at night it is 22°C. Seasonal average rainfall is 16 mm.
• If you visit between April and June, you can expect an average temp of 36°C during the day and 24°C at night. Average rainfall during this season is 871 mm.
• The daytime average temp from July to September is 33°C and the night-time average is 23°C. Average precipitation for this season is 971 mm.
• Between October and December, the average temp during the day is 33°C and 22°C at night. Seasonal average rain is 562 mm.
• The average annual rainfall in San Francisco is 2420 mm.