October weather forecast and climate
Santa Clara, CA

Weather in October

October, the same as September, in Santa Clara, California, is an agreeable autumn month, with average temperature varying between 72.3°F (22.4°C) and 52.9°F (11.6°C).

Temperature

In Santa Clara, the average high-temperature slightly decreases, from a warm 79.2°F (26.2°C) in September, to an agreeable 72.3°F (22.4°C). In October, in Santa Clara, the average low-temperature is 52.9°F (11.6°C).

Humidity

The average relative humidity in October is 62%.

Rainfall

In Santa Clara, California, in October, it is raining for 4.2 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, there are 70.2 rainfall days, and 9.8" (249mm) of precipitation is accumulated.

Daylight

In Santa Clara, the average length of the day in October is 11.2h.

Sunshine

In Santa Clara, the average sunshine is 7.2h.

UV index

In October, the average daily maximum UV index in Santa Clara, California, is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 4 in October transform into the following instructions:
Take precautions - Protection against sun damage is advised. 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 temperature in October in Santa Clara?

The average high-temperature, in October, in Santa Clara, California, is 72.3°F (22.4°C), while the average low-temperature is 52.9°F (11.6°C).

What is the average humidity in October in Santa Clara?

In Santa Clara, the average relative humidity in October is 62%.

How much does it rain in Santa Clara in October?

In October, in Santa Clara, the rain falls for 4.2 days. Throughout October, 0.43" (11mm) of precipitation is accumulated.

How many hours of daylight does Santa Clara have in October?

In Santa Clara, California, the average length of the day in October is 11.2h.

How many hours of sunshine does Santa Clara have in October?

The average sunshine in October is 7.2h.

What is the UV index reading in October in Santa Clara?

In Santa Clara, California, the average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.

Average temperature in October
Santa Clara, CA

Average temperature in October - Santa Clara, CA
  • Average high temperature in October: 72.3°F

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is December (56.7°F).

  • Average low temperature in October: 52.9°F

The month with the highest average low temperature is August (56.3°F).
The coldest months (with the lowest average low temperature) are January and February (43.3°F).

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Average pressure in October
Santa Clara, CA

Average pressure in October - Santa Clara, 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
Santa Clara, CA

Average wind speed in October - Santa Clara, CA
  • Average wind speed in October: 4.5mph

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

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Average humidity in October
Santa Clara, CA

Average humidity in October - Santa Clara, 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 (61%).

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Average rainfall in October
Santa Clara, CA

Average rainfall in October - Santa Clara, CA
  • Average rainfall in October: 0.43"

The wettest month (with the highest rainfall) is March (1.77").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in October
Santa Clara, CA

Average rainfall days in October - Santa Clara, CA
  • Average rainfall days in October: 4.2 days

The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is August (0.8 days).

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Average daylight in October /
Average sunshine in October
Santa Clara, CA

Average daylight in October / Average sunshine in October - Santa Clara, 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
Santa Clara, CA

Average sunshine days in October - Santa Clara, CA
  • Average sunshine days in October: 25.4 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (16.7 days).

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Average UV index in October
Santa Clara, CA

Average UV index in October - Santa Clara, 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
Santa Clara, CA

Average cloud cover in October - Santa Clara, CA
  • Average cloud cover in October: 16

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
Santa Clara, CA

Average visibility in October - Santa Clara, 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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