Planning a trip to San Francisco in October? You are in luck! The weather is generally good, with an average maximum temperature of +72°F and approximately 10 sunny days. Just be prepared for some rain, as there are usually around 5 rainy days and 29 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+72°F
Avg. max. temperature
+43°F
Min.
+95°F
Max.
29 mm
Total precipitation
79%
Avg. humidity
2 m/s
Avg. wind
10 ☀️
Sunny Days
16 ⛅️
Cloudy
5 🌦
Rainy
Our opinion: San Francisco has good weather in October.
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Average temperature in San Francisco in October
Here are the expected maximum, average and minimum temperatures in San Francisco for October based on the historical data.
Last Year
Historical Data
Going from a maximum of +91°F during the day to a minimum of +43°F during the night, the temperature in October averages around +75°F.
The average maximum temperature goes up 4% by the end of the month, compared with the beginning of the month, from +70°F to +72°F.
Is San Francisco warm or cold in October?
San Francisco is typically mild in October.
Maximum temperatures go down compared to the previous month from +75°F to +72°F. The minimum temperature also goes down from +57°F to +54°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how October is compared to other months in San Francisco:
Water temperature in San Francisco in October
Water in San Francisco in October is Cold. It varies from +54°F to +59°F, with an average of +57°F.The air temperature averaging +72°F is higher than the water temperature.
The water temperature in October is one of the warmest of the entire year:
The warmest water temperatures in San Francisco are reached in September, when the average sea temperature rises to +57°F. The coldest water temperatures are in June, with an average of +52°F.
Can you swim in San Francisco in October?
We would not recommend swimming in San Francisco in October, the water is very cold (+57°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.
Climate in San Francisco in October
San Francisco weather looks like this, on average, in October and the surrounding months.
September
October
November
Avg. temperature
+75°F
+72°F
+63°F
Min. temperature
+48°F
+43°F
+36°F
Max. temperature
+99°F
+95°F
+81°F
Rainfall
4 mm
29 mm
63 mm
Wind
2 m/s
2 m/s
2 m/s
Avg. water temperature
+57°F
+57°F
+55°F
Humidity
81%
79%
80%
Air pressure
1012 HPa
1014 HPa
1017 HPa
Sunny days
9
10
7
Cloudy days
19
16
13
Rainy days
2
5
10
Snowy days
0
0
0
October weather is still as good as in September.It’s getting colder in October. From +75°F in the day, the average maximum temperature lowers to +72°F.Prepare for more rain. Average rainfall goes from 4 mm to 29 mm.It feels drier, as humidity decreases from 81% to 79%.The average wind speed doesn’t change much during October, staying around 2 m/s.The good news is there are likely to be more sunny days in October, from 9 to 10.
Next month (November) brings a further decline in the weather.
Wind speed in San Francisco in October based on historical data.
Last Year
Historical Data
The average wind speed is 1 m/s getting up to 2 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in San Francisco is gradually increasing during October, going from 1 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during October in San Francisco based on historical data.
Last Year
Historical Data
Typically, there is a 13% chance of rain on an average day in October, with total rainfall of approximately 11 mm. The maximum amount of rainfall per day is around 7 mm, which is considered light rain.San Francisco is amazing in October with as little as 4 rainy days on average, so plan adventures in the great outdoors.
Here’s how October is compared with other months in the amount of precipitation, total mm:
San Francisco wettest month is December, where a typical day has a 39% chance of precipitation and 117 mm of rainfall per day. July, on the other hand, is the driest month with a mere 0% chance of precipitation and 0 mm of rainfall per day.
How was the weather last October in San Francisco?
This is the weather in San Francisco in October 2023:
1 October
☁️
+70°F
2 October
☀️
+70°F
3 October
☀️
+73°F
4 October
☀️
+88°F
5 October
☀️
+91°F
6 October
☀️
+90°F
7 October
☀️
+90°F
8 October
☀️
+86°F
9 October
☁️
+69°F
10 October
☁️
+69°F
11 October
☀️
+70°F
12 October
☀️
+74°F
13 October
☁️
+71°F
14 October
☁️
+71°F
15 October
☁️
+74°F
16 October
☁️
+72°F
17 October
☁️
+74°F
18 October
☀️
+83°F
19 October
☀️
+86°F
20 October
☁️
+83°F
21 October
☁️
+69°F
22 October
🌧️
+67°F
23 October
🌧️
+70°F
24 October
☁️
+68°F
25 October
☁️
+66°F
26 October
☀️
+66°F
27 October
☀️
+62°F
28 October
☀️
+68°F
29 October
☀️
+74°F
30 October
☀️
+73°F
31 October
☁️
+72°F
In October 2023 San Francisco had 16 sunny days, 13 cloudy days, and 2 rainy days. The average maximum temperature was +75°F, with an absolute maximum of +91°F and a minimum of +63°F. The average humidity was 78%, with a maximum of 100% and a minimum of 28%. The average wind speed was 1 m/s, with a maximum of 5 m/s and a minimum of 0 m/s.
Are you planning a trip in October?
Climate Change Over the Years
This is how San Francisco climate has changed over the last 43 years.
The climate in San Francisco in October has not changed that much over the last 43 years.
The average temperature was the lowest in 1982 (+65°F) and the highest in 2014 (+70°F). The driest year was 2013 with only 127 mm of rainfall, and the wettest year was 1983 with 1162 mm.
FAQ
Frequently asked questions about the weather in San Francisco in October:
Is October a good time to visit San Francisco?
October is a really good time to go to San Francisco. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit San Francisco.
Can you sunbathe in San Francisco in October?
October has mild temperatures in San Francisco. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Can you swim in San Francisco in October?
Swimming in San Francisco in October is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.
Is San Francisco rainy in October?
San Francisco is usually dry in October. Plan your packing around outdoor activities and exploring.
Is it sunny in San Francisco in October?
The amount of sunny days in San Francisco during October varies; prepare for a mix of clouds and sun.
For this page, we’ve looked at the typical weather in San Francisco, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
