Planning a trip to San Diego in October? You are in luck! The weather is generally good, with an average maximum temperature of +73°F and approximately 8 sunny days. Just be prepared for some rain, as there are usually around 6 rainy days and 20 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+73°F
Avg. max. temperature
+48°F
Min.
+97°F
Max.
20 mm
Total precipitation
71%
Avg. humidity
2 m/s
Avg. wind
8 ☀️
Sunny Days
17 ⛅️
Cloudy
6 🌦
Rainy
Our opinion: San Diego has good weather in October.
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Average temperature in San Diego in October
Here are the expected maximum, average and minimum temperatures in San Diego for October based on the historical data.
Last Year
Historical Data
Going from a maximum of +82°F during the day to a minimum of +48°F during the night, the temperature in October averages around +73°F.
The average maximum temperature goes up 26% by the end of the month, compared with the beginning of the month, from +70°F to +79°F.
Is San Diego warm or cold in October?
San Diego is typically warm in October.
Maximum temperatures go down compared to the previous month from +75°F to +73°F. The minimum temperature also goes down from +66°F to +63°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
October is one of the warmest months in San Diego, here is the comparison with other months:
Water temperature in San Diego in October
Water in San Diego in October is Fresh. It varies from +62°F to +68°F, with an average of +65°F.This is almost similar to the air temperature, which averages +73°F.
In October, water temperatures are average relative to the rest of the year:
The warmest water temperatures in San Diego are reached in August, when the average sea temperature rises to +68°F. The coldest water temperatures are in February, with an average of +59°F.
Can you swim in San Diego in October?
Water temperature (+65°F) in San Diego in October might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
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
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.
Climate in San Diego in October
San Diego weather looks like this, on average, in October and the surrounding months.
September
October
November
Avg. temperature
+75°F
+73°F
+70°F
Min. temperature
+55°F
+48°F
+41°F
Max. temperature
+100°F
+97°F
+95°F
Rainfall
10 mm
20 mm
34 mm
Wind
2 m/s
2 m/s
2 m/s
Avg. water temperature
+67°F
+65°F
+63°F
Humidity
75%
71%
67%
Air pressure
1011 HPa
1013 HPa
1016 HPa
Sunny days
6
8
9
Cloudy days
20
17
14
Rainy days
4
6
7
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 +73°F.Prepare for more rain. Average rainfall goes from 10 mm to 20 mm.It feels drier, as humidity decreases from 75% to 71%.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 6 to 8.
November brings much the same weather, it remains good.
Wind speed in San Diego in October based on historical data.
Last Year
Historical Data
The average wind speed is 3 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in San Diego is gradually decreasing during October, going from 3 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during October in San Diego based on historical data.
Last Year
Historical Data
Typically, there is a 16% chance of rain on an average day in October, with total rainfall of approximately 9 mm. The maximum amount of rainfall per day is around 3 mm, which is considered light rain.On average, there are about 5 rainy days during October, so prepare to bring an umbrella.
Here’s how October is compared with other months in the amount of precipitation, total mm:
San Diego wettest month is February, where a typical day has a 34% chance of precipitation and 84 mm of rainfall per day. July, on the other hand, is the driest month with a mere 6% chance of precipitation and 2 mm of rainfall per day.
How was the weather last October in San Diego?
This is the weather in San Diego in October 2023:
1 October
🌧️
+70°F
2 October
☀️
+71°F
3 October
☀️
+75°F
4 October
☀️
+79°F
5 October
☀️
+82°F
6 October
☀️
+81°F
7 October
🌫️
+79°F
8 October
☁️
+78°F
9 October
🌫️
+74°F
10 October
☁️
+72°F
11 October
☁️
+71°F
12 October
☁️
+72°F
13 October
☁️
+71°F
14 October
🌫️
+75°F
15 October
☀️
+78°F
16 October
🌫️
+76°F
17 October
🌫️
+75°F
18 October
🌫️
+72°F
19 October
🌫️
+76°F
20 October
🌫️
+78°F
21 October
☀️
+76°F
22 October
☁️
+72°F
23 October
🌧️
+70°F
24 October
☀️
+69°F
25 October
☁️
+67°F
26 October
☁️
+70°F
27 October
☁️
+69°F
28 October
☀️
+69°F
29 October
☀️
+77°F
30 October
☀️
+77°F
31 October
☀️
+78°F
In October 2023 San Diego had 12 sunny days, 9 cloudy days, and 2 rainy days. The average maximum temperature was +73°F, with an absolute maximum of +82°F and a minimum of +66°F. The average humidity was 79%, with a maximum of 100% and a minimum of 24%. The average wind speed was 3 m/s, with a maximum of 8 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 Diego climate has changed over the last 43 years.
The climate in San Diego in October has not changed that much over the last 43 years.
The average temperature was the lowest in 2001 (+67°F) and the highest in 2014 (+74°F). The driest year was 2002 with only 156 mm of rainfall, and the wettest year was 2023 with 1311 mm.
FAQ
Frequently asked questions about the weather in San Diego in October:
Is October a good time to visit San Diego?
October is a really good time to go to San Diego. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit San Diego.
Can you sunbathe in San Diego in October?
October is warm in San Diego. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Can you swim in San Diego in October?
In general, you can swim in San Diego in October, if you want to, at an average water temperature of +65°F. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.
Is San Diego rainy in October?
San Diego is usually dry in October. Plan your packing around outdoor activities and exploring.
Is it sunny in San Diego in October?
Usually, it’s not very sunny in San Diego in October, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.
For this page, we’ve looked at the typical weather in San Diego, 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.
