Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
As March transitions into April, the average high-temperature rests at a still refreshing 66.7°F (19.3°C), maintaining a close resemblance to the previous month. Santa Clara's nighttime temperature during April is consistently averaged at a frosty 45.5°F (7.5°C).Humidity
In April, the average relative humidity is 69%.Rainfall
In Santa Clara, during April, the rain falls for 7.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, in Santa Clara, there are 70.2 rainfall days, and 9.8" (249mm) of precipitation is accumulated.Daylight
In April, the average length of the day 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, sunrise is at 6:12 am and sunset at 7:57 pm PDT.
Sunshine
In Santa Clara, the average sunshine in April is 10.4h.UV index
In Santa Clara, the average daily maximum UV index in April is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: During April, 5 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
How many hours of daylight does Santa Clara have in April?
When are sunrise and sunset in April?
How many hours of sunshine does Santa Clara have in April?
What is the UV index intensity in April?
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).
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).
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).
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%).
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").
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).
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).
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).
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).
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).
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).
Santa Clara, California, USA
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