January weather forecast and climate
Santa Clara, CA

Weather in January

January, like December, is another mild winter month in Santa Clara, California, with average temperature fluctuating between 58.5°F (14.7°C) and 43.3°F (6.3°C).

Temperature

In Santa Clara, California, the average high-temperature is practically the same as in December - a still mild 58.5°F (14.7°C). In Santa Clara, in January, the average low-temperature is 43.3°F (6.3°C).

Humidity

The average relative humidity in January is 72%.

Rainfall

In Santa Clara, during 9.2 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, in Santa Clara, there are 70.2 rainfall days, and 9.8" (249mm) of precipitation is accumulated.

Daylight

In Santa Clara, California, the average length of the day is 9.9h.

Sunshine

The average sunshine in January is 6.3h.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 3 in January interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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 January in Santa Clara?

In Santa Clara, California, in January, the average high-temperature is 58.5°F (14.7°C), and the average low-temperature is 43.3°F (6.3°C).

What is the average humidity in January in Santa Clara?

The average relative humidity in January in Santa Clara is 72%.

How much does it rain in Santa Clara in January?

In Santa Clara, California, during January, the rain falls for 9.2 days and regularly aggregates up to 1.54" (39mm) of precipitation.

What is the average length of the day in January in Santa Clara?

In January, the average length of the day is 9.9h.

How long on average sun shines in January in Santa Clara?

In Santa Clara, California, the average sunshine in January is 6.3h.

What are the months with the lowest UV index in Santa Clara?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Santa Clara.

How high is the UV index in January in Santa Clara?

In January, the average daily maximum UV index in Santa Clara is 3. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in January
Santa Clara, CA

Average temperature in January - Santa Clara, CA
  • Average high temperature in January: 58.5°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 January: 43.3°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 January
Santa Clara, CA

Average pressure in January - Santa Clara, CA
  • Average pressure in January: 30.13"

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 January
Santa Clara, CA

Average wind speed in January - Santa Clara, CA
  • Average wind speed in January: 4.7mph

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 January
Santa Clara, CA

Average humidity in January - Santa Clara, CA
  • Average humidity in January: 72%

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 January
Santa Clara, CA

Average rainfall in January - Santa Clara, CA
  • Average rainfall in January: 1.54"

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 January
Santa Clara, CA

Average rainfall days in January - Santa Clara, CA
  • Average rainfall days in January: 9.2 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 January /
Average sunshine in January
Santa Clara, CA

Average daylight in January / Average sunshine in January - Santa Clara, CA
  • Average daylight in January: 9.9h

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 January: 6.3h

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 January
Santa Clara, CA

Average sunshine days in January - Santa Clara, CA
  • Average sunshine days in January: 20.7 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 January
Santa Clara, CA

Average UV index in January - Santa Clara, CA
  • Average UV index in January: 3

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 January
Santa Clara, CA

Average cloud cover in January - Santa Clara, CA
  • Average cloud cover in January: 30

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 January
Santa Clara, CA

Average visibility in January - Santa Clara, CA
  • Average visibility in January: 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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