October weather forecast and climate
San Jose, CA

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

October, the same as September, in San Jose, California, is an agreeable autumn month, with average temperature fluctuating between 72.7°F (22.6°C) and 52.7°F (11.5°C).

Temperature

In San Jose, California, the average high-temperature marginally drops, from a warm 79.7°F (26.5°C) in September, to a pleasant 72.7°F (22.6°C). The average low-temperature,, is 52.7°F (11.5°C).

Humidity

The average relative humidity in San Jose, California, is 62%.

Rainfall

In San Jose, in October, it is raining for 2.5 days, with typically 0.16" (4mm) of accumulated 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 in San Jose is 11.2h.

Sunshine

The average sunshine in San Jose is 7.2h.

UV index

In San Jose, California, the average daily maximum UV index in October is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the average humidity in October in San Jose?

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

How much does it rain in San Jose in October?

In San Jose, California, in October, during 2.5 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

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

The average length of the day in October in San Jose, California, is 11.2h.

How long on average sun shines in October in San Jose?

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

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

In October, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to the Sun's UV rays.

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"

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

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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%).
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: 11.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.6h).

  • Average sunshine in October: 7.2h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6h).

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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

Months with the highest UV index are June, July and August (UV index 6).
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

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

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