Weather Guide

San Francisco, California, United States Average Monthly Weather

Weather score52Mixed annual avg

Best months: July, August, June

Across the year, average daytime temperatures are around 20°C, sunshine averages 8.6h per day, and rainfall totals about 378mm. Sea temperatures average 13°C across the year.

San Francisco, California, United States, United States travel weather guide
Photo by 12019 on Pixabay

Annual weather

Annual averages

Temp

20°C

Rain

378mm

Annual total

Sun

8.6h

Sea

13°C

Weather score

52

Mixed avg

Seasonal climate calendar

TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score

Trip feel

Mild

Average highs are around 26°C, so days are mild rather than hot.

Drier

Rainfall averages 1mm, which is relatively low for holiday planning.

Bright

Sunshine averages 11h per day, so bright days are a strong part of the month.

Cool sea

Sea temperatures average 14°C, so the water can feel cool.

Map

Weather map

Compare San Francisco, California, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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July26°C average high

July is one of San Francisco's warmest months, with daytime heat above the yearly average.

Warmest monthsJune to October

This stretch sets the upper range for average daytime heat.

July1mm average rain

July is one of San Francisco's driest months, making outdoor days easier to plan than in wetter parts of the year.

Driest monthsApril to October

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

July11 hours average sun

July is one of San Francisco's sunniest months, with some of the strongest bright-day conditions in the yearly averages.

Brightest monthsApril to August

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

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July14°C average sea

July sits in the warmer sea-temperature season, usually making swimming easier to enjoy.

Warmest seaJuly to October

Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.

Weather score

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July73 weather score

July is one of San Francisco's best weather-score months, combining the strongest overall balance in the yearly averages.

Best weather monthsMay to September

These months have the strongest weather score in the monthly averages.

Hotels in San Francisco, California, United States