Will it rain in San Francisco on Saturday, October 31, 2026?

Most likely not: the chance of rain is 19%.

What will the temperature be in San Francisco on Saturday, October 31, 2026?

A high of 20°C and a low of 12°C are expected. Conditions: clear.

What time are sunrise and sunset in San Francisco on October 31, 2026?

Sunrise is at 07:34 and sunset at 18:11 (local time); day length 10 h 38 min.

How reliable is this forecast?

Values for 12 days ahead show a trend; they are updated as the date approaches and may change.

Weather · California

San Francisco Weather on Saturday, October 31, 2026

San Francisco · Saturday, October 31 2026

20°12°

Clear

High 20°, low 12°

Chance of rain: 19%; No rain
Wind: 13 km/h; northeast
UV index: 4; Moderate
Sunrise: 07:34; Sunset 18:11
Day length: 10 h 38 min
Moon: Last quarter; 67% illuminated

Updated: 10 h ago · Source: Open-Meteo

Forecast for San Francisco on Saturday, October 31, 2026: clear, with a high of 20°C and a low of 12°C. No significant rain is expected (19% chance). Wind from the northeast at up to 13 km/h. Sunrise is at 07:34 and sunset at 18:11; day length 10 h 38 min. 4° warmer than the previous day. This day is 3° warmer than the 7-day average. This date is 12 days away; the forecast shows a trend and will be updated as the date gets closer.

What to wear and what to watch out for

Cool in the morning and evening: dress in layers and bring a sweater or jacket.
A good day for outdoor activities.

Weather nearby on October 31

Frequently asked questions

Will it rain in San Francisco on Saturday, October 31, 2026?: Most likely not: the chance of rain is 19%.
What will the temperature be in San Francisco on Saturday, October 31, 2026?: A high of 20°C and a low of 12°C are expected. Conditions: clear.
What time are sunrise and sunset in San Francisco on October 31, 2026?: Sunrise is at 07:34 and sunset at 18:11 (local time); day length 10 h 38 min.
How reliable is this forecast?: Values for 12 days ahead show a trend; they are updated as the date approaches and may change.