Weather in San Jose in October 2025
- October is usually the wettest month of the year in San Jose;
Average weather
Average temperature in San Jose in October
The expected average maximum temperature in October is +77°F with a maximum of +82°F and a minimum of +63°F.
The average maximum temperature goes down 27% by the end of the month, compared with the beginning of the month, from +82°F to +77°F.
Is San Jose warm or cold in October?
San Jose is typically warm in October.
Maximum temperatures go up compared to the previous month from +75°F to +75°F. The minimum temperature also goes up from +63°F to +63°F.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how October is compared to other months in San Jose:
Water temperature in San Jose in October
Water in San Jose in October is Very warm. It varies from +80°F to +85°F, with an average of +82°F. Note that the air temperature is lower than the water temperature, averaging around +75°F.
The water temperature in October is one of the coldest of the entire year:
Can you swim in San Jose in October?
Climate in San Jose in October
| September | October | November | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +75°F | +75°F | +75°F | ||||
| Min. temperature | ||||||
| +57°F | +57°F | +57°F | ||||
| Max. temperature | ||||||
| +84°F | +84°F | +84°F | ||||
| Rainfall | ||||||
| 670 mm | 684 mm | 485 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Avg. water temperature | ||||||
| +84°F | +82°F | +82°F | ||||
| Humidity | ||||||
| 85% | 85% | 81% | ||||
| Air pressure | ||||||
| 1014 HPa | 1014 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 0 | 0 | 0 | ||||
| Cloudy days | ||||||
| 0 | 0 | 0 | ||||
| Rainy days | ||||||
| 16 | 21 | 26 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
October weather is still as ok as in September. The temperature levels stay the same in the area of +75°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 670 mm to 684 mm. Humidity levels don’t change as the month goes on, averaging around 85%. The average wind speed doesn’t change much during October, staying around 2 m/s. The amount of sunny days stay about the same, averaging 0 sunny days during the month.
November brings much the same weather, it remains ok.
Wind
The average wind speed is 2 m/s getting up to 3 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in San Jose is gradually decreasing during October, going from 3 m/s to 2 m/s over the course of the month.
Rain
How was the weather last October in San Jose?
Climate Change Over the Years
The climate in San Jose in October has not changed that much over the last 43 years.
The average temperature was the lowest in 1999 (+74°F) and the highest in 2013 (+79°F). The driest year was 2023 with only 3365 mm of rainfall, and the wettest year was 1995 with 7044 mm.
FAQ
Is October a good time to visit San Jose?
Can you sunbathe in San Jose in October?
Can you swim in San Jose in October?
Is San Jose rainy in October?
Is it sunny in San Jose in October?
Monthly weather in San Jose
Source of the data
For this page, we’ve looked at the typical weather in San Jose, 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.