October weather forecast
San Jose, CA

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A sunset panorama of the lit city of San Jose, California
A sunset panorama of the lit city of San Jose, California

Weather in October

The month of October in San Jose is a charming mixture of extended summer and early autumn. The weather amalgamates warm temperatures with a gradual increase in rainfall to 0.16in and a slight drop in daylight hours. The wind speed remains consistent, averagely blowing at a speed of 4.4mph (7.1km/h). October accommodates the seamless transition from summer to autumn with a blend of warm, sunny days and cool, crisp evenings.

Temperature

October signifies a minor drop in average high-temperature, transitioning from a moderately hot 79.7°F (26.5°C) in September to an agreeable 72.7°F (22.6°C). During October, San Jose records a consistent average nighttime temperature of 52.7°F (11.5°C).

Humidity

In San Jose, the average relative humidity in October is 62%.

Rainfall

In San Jose, during October, the rain falls for 2.5 days and regularly aggregates up to 0.16" (4mm) of precipitation. Throughout the year, there are 51.5 rainfall days, and 4.06" (103mm) of precipitation is accumulated.

Daylight

In October, the average length of the day is 11h and 13min.
On the first day of the month, sunrise is at 7:03 am and sunset at 6:50 pm. On the last day of October, in San Jose, sunrise is at 7:32 am and sunset at 6:10 pm PDT.

Sunshine

In San Jose, the average sunshine in October is 7.2h.

UV index

The average daily maximum UV index in October in San Jose is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 4 during October morphs into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To guard against the harmful effects of the Sun, minimize exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What is the temperature in October in San Jose?

San Jose in October has an average high-temperature of 72.7°F (22.6°C) and an average low-temperature of 52.7°F (11.5°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 84.2°F (29°C).

What is the average humidity in October in San Jose?

The average relative humidity in October is 62%.

How much does it rain in San Jose in October?

In San Jose, during October, the rain falls for 2.5 days and regularly aggregates up to 0.16" (4mm) of precipitation.

What is the average length of the day in October in San Jose?

In October, the average day length in San Jose is 11h and 13min.

What time are sunrise and sunset in October in San Jose?

In October, on the first day of the month, sunrise is at 7:03 am and sunset at 6:50 pm. On the last day of the month, in San Jose, sunrise is at 7:32 am and sunset at 6:10 pm PDT.

How many hours of sunshine does San Jose have in October?

In San Jose, California, the average sunshine duration in October is 7.2h.

What is the UV index reading in October in San Jose?

In October, the average daily maximum UV index in San Jose, California, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
San Jose, CA

Average temperature in October - San Jose, CA
  • Average high temperature in October: 72.7°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in October: 52.7°F

The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is December (43°F).

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Average pressure in October
San Jose, CA

Average pressure in October - San Jose, CA
  • Average pressure in October: 29.98"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed in October
San Jose, CA

Average wind speed in October - San Jose, CA
  • Average wind speed in October: 4.4mph

The windiest months (with the highest average wind speed) are April and May (5.8mph).
The calmest months (with the lowest average wind speed) are September and October (4.4mph).

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Average humidity in October
San Jose, CA

Average humidity in October - San Jose, CA
  • Average humidity in October: 62%

The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July and September (60%).

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Average rainfall in October
San Jose, CA

Average rainfall in October - San Jose, CA
  • Average rainfall in October: 0.16"

The wettest month (with the highest rainfall) is March (0.83").
The driest months (with the least rainfall) are June, July and August (0.04").

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Average rainfall days in October
San Jose, CA

Average rainfall days in October - San Jose, CA
  • Average rainfall days in October: 2.5 days

The month with the highest number of rainy days is March (9.8 days).
The month with the least rainy days is August (0.4 days).

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Average daylight in October /
Average sunshine in October
San Jose, CA

Average daylight in October / Average sunshine in October - San Jose, CA
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in October: 7h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in October
San Jose, CA

Average sunshine days in October - San Jose, CA
  • Average sunshine days in October: 26.8 days

The month with the most sunshine days is August (29.7 days).
The month with the least sunshine days is March (19.5 days).

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Average UV index in October
San Jose, CA

Average UV index in October - San Jose, CA
  • Average UV index in October: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in October
San Jose, CA

Average cloud cover in October - San Jose, CA
  • Average cloud cover in October: 15

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in October
San Jose, CA

Average visibility in October - San Jose, CA
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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San Jose, California, USA

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