April weather forecast
Santa Clara, CA

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Weather in April

As Santa Clara transitions into April, the weather revels in a perfectly balanced spring spirit. It's noticeably warmer compared to March, without overheating or compromising comfort. The rainfall level notably drops while sunshine hours extend, offering yet another perfect balance nature has to offer. This adds a lively energy to the city, making it a great time for outdoor recreations or relaxed picnics in the charming city parks. The relatively mild temperatures, the delightful combination of sun and shade, and the fluttering butterflies against a blue sky backdrop, paint a stunning portrait of Santa Clara in April.

Temperature

April in Santa Clara welcomes an average high-temperature of a still refreshing 66.7°F (19.3°C), not much different from the preceding month. The nighttime temperature in Santa Clara, California, during April, averages of 45.5°F (7.5°C).

Humidity

In April, the average relative humidity is 69%.

Rainfall

In April, in Santa Clara, the rain falls for 7.5 days. Throughout April, 0.67" (17mm) of precipitation is accumulated. In Santa Clara, during the entire year, the rain falls for 70.2 days and collects up to 9.8" (249mm) of precipitation.

Daylight

The average length of the day in April is 13h and 11min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:30 pm. On the last day of April, in Santa Clara, sunrise is at 6:12 am and sunset at 7:57 pm PDT.

Sunshine

In April, the average sunshine is 10.4h.

UV index

In Santa Clara, the average daily maximum UV index in April is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In April, a daily UV index of 5 turns into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

What is the temperature in April in Santa Clara?

The high-temperature in Santa Clara, California, during April is 66.7°F (19.3°C) and the low-temperature is 45.5°F (7.5°C).

What is the average humidity in April in Santa Clara?

In April, the average relative humidity in Santa Clara is 69%.

How many days does it rain in April in Santa Clara?

In Santa Clara, in April, during 7.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

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

The average day length in April in Santa Clara is 13h and 11min.

What time are sunrise and sunset in April in Santa Clara?

In April, on the first day of the month, sunrise is at 6:51 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:57 pm PDT.

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

In Santa Clara, California, the average sunshine duration in April is 10.4h.

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

In April, the average daily maximum UV index in Santa Clara is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Santa Clara, CA

Average temperature in April - Santa Clara, CA
  • Average high temperature in April: 66.7°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 April: 45.5°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 April
Santa Clara, CA

Average pressure in April - Santa Clara, CA
  • Average pressure in April: 30.04"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 April
Santa Clara, CA

Average wind speed in April - Santa Clara, CA
  • Average wind speed in April: 5.8mph

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 April
Santa Clara, CA

Average humidity in April - Santa Clara, CA
  • Average humidity in April: 69%

The month with the highest relative humidity is March (73%).
The months with the lowest relative humidity are July and September (61%).

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Average rainfall in April
Santa Clara, CA

Average rainfall in April - Santa Clara, CA
  • Average rainfall in April: 0.67"

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 April
Santa Clara, CA

Average rainfall days in April - Santa Clara, CA
  • Average rainfall days in April: 7.5 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 April /
Average sunshine in April
Santa Clara, CA

Average daylight in April / Average sunshine in April - Santa Clara, CA
  • Average daylight in April: 13h 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 April: 10h and 2min

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 April
Santa Clara, CA

Average sunshine days in April - Santa Clara, CA
  • Average sunshine days in April: 21.3 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 April
Santa Clara, CA

Average UV index in April - Santa Clara, CA
  • Average UV index in April: 5

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 April
Santa Clara, CA

Average cloud cover in April - Santa Clara, CA
  • Average cloud cover in April: 26

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 April
Santa Clara, CA

Average visibility in April - Santa Clara, CA
  • Average visibility in April: 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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Santa Clara, California, USA

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