San Jose, CA weather in October
San Jose is mild and mostly dry in October: highs average 76°F and nights drop to about 53°F. There are about 3 days with rain. A great month for outdoor plans.
- Normal high
- 76°F
- Normal low
- 53°F
- Wet days
- 3
- 0.5 in total
- Muggy days
- 0
- dew point 65°F+
How October changes from start to finish
| October 1 | October 31 | |
|---|---|---|
| Normal high | 79°F | 72°F |
| Normal low | 56°F | 49°F |
| Chance of a wet day | 6% | 16% |
| Sunrise / sunset | 7:03 am / 6:51 pm | 7:31 am / 6:11 pm |
| Daylight | 11.8 h | 10.7 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Pacific Time).
A typical October day
- 6 am56°Fdew point 50°F
- 9 am62°Fdew point 52°F
- Noon67°Fdew point 51°F
- 3 pm69°Fdew point 50°F
- 6 pm62°Fdew point 50°F
- 9 pm60°Fdew point 50°F
NOAA hourly normals (local standard time) from San Francisco Intl Airport (32 mi away); average wind 9 mph; clear or few clouds in 54% of daytime hours, mostly cloudy or overcast in 29%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F22 of 31
- Hot dayshigh 90°F or more1 of 31
- Muggy daysdaily mean dew point 65°F or more0 of 31
- Wet daysat least 0.01 in of rain or melted snow3 of 31
- Notable rainat least 0.10 in1 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per October, counted from daily records for each year 1991-2020.
Rain in October
Normal precipitation is 0.5 in; a dry October brings about 0.06 in and a wet one about 0.7 in (25th and 75th percentiles). Days with half an inch or more are rare.
How October varies from year to year
- Warmest October, 1991-20202020: average high 82°F
- Coolest October2000: average high 71°F
- Wettest October2009: 2.4 in
- Driest October2002: no measurable precipitation
- Highest reading96°F (October 2, 2012)
- Lowest reading41°F (October 31, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
October compared with September and November
| September | October | November | |
|---|---|---|---|
| Normal high | 81°F | 76°F | 66°F |
| Normal low | 57°F | 53°F | 46°F |
| Wet days | 1 | 3 | 7 |
| Comfortable days | 17 | 22 | 17 |
| Daylight | 12.4 h | 11.2 h | 10.2 h |
Highs change by -5°F from September and -10°F into November.
Nearby alternatives in October
- Warmer: Solvang, CA214 mi · high 84°F · 3 wet days
- Cooler: San Francisco, CA42 mi · high 70°F · 4 wet days
How San Jose ranks in October
- Normal high144th warmest of 378 cities; 42nd of 60 in California
- Wet days58th driest of 378
- Comfortable days6th most of 340
Heating and cooling
October has 72 heating degree days and 49 cooling degree days (base 65°F), 4% of the year's total heating and cooling demand.
Questions
How hot is San Jose in October?
The normal high is 76°F and the normal low is 53°F. From 1991 to 2020 the hottest October reading was 96°F (October 2, 2012).
Does it rain a lot in San Jose in October?
About 3 days in October have at least 0.01 in of precipitation, and the normal total is 0.5 in. The wettest October in 1991-2020 was in 2009 (2.4 in); the driest was in 2002, with no measurable precipitation.
Is October a good time to visit San Jose?
October ranks 4th of 12 months on our comfort score for San Jose (77 out of 100). It has about 22 comfortable days and about 1 day at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain and frost dates: San Jose (USW00023293), 2.1 mi NW of the city center, 51 ft . NOAA normals and daily records, 1991-2020.
- Snowfall and snow depth: San Jose (USC00047821), 0.8 mi NNW of the city center, 67 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: San Francisco Intl Airport (USW00023234), 32 mi NW of the city center, 8 ft (73 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: N Y. Mineta Sn Jo Intl Apt (724945-23293), 2.1 mi NW of the city center, 49 ft . Hourly observations, 1991-2020.