April weather forecast
Santa Cruz, CA

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Sandy beach, scenic trees, and residential homes of the bay area in Santa Cruz, California
Sandy beach, scenic trees, and residential homes of the bay area in Santa Cruz, California

Weather in April

April carries significant weather changes with it in Santa Cruz, striking a balance between warming temperatures and dissipating rainfall. Average rainfall drops significantly from 2.48" (63mm) in March to 0.94" (24mm) in April. Sunny days are frequent, and the increasing daylight hours close to an appreciable 13.2 hours bring vibrancy to Santa Cruz's scenic beauty. Outdoor lovers can experience the charm of Santa Cruz under more favorable conditions as the city starts to feel the vibes of impending summer.

Temperature

March's transformation into April witnesses an average high-temperature of a comfortable 63.1°F (17.3°C) in Santa Cruz, noting a minor change from the preceding month. An average low-temperature of 47.3°F (8.5°C) is common during the nights of April.

Humidity

In Santa Cruz, the average relative humidity in April is 73%.

Rainfall

In Santa Cruz, California, in April, during 9 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In Santa Cruz, during the entire year, the rain falls for 77.9 days and collects up to 14.45" (367mm) of precipitation.

Ocean temperature

With an average ocean temperature of 54°F (12.2°C), April is the month with the coldest seawater.
Note: Engaging in a swim in 54°F (12.2°C) can threaten life. Brief exposure to 55.4°F (13°C) waters is uneasy, and submersion below 50°F (10°C) can lead to cold shock and disrupted breathing patterns, varying by individual.

Daylight

In Santa Cruz, the average length of the day in April is 13h and 10min.
On the first day of the month, sunrise is at 6:52 am and sunset at 7:31 pm. On the last day of April, in Santa Cruz, sunrise is at 6:13 am and sunset at 7:56 pm PDT.

Sunshine

The average sunshine in April in Santa Cruz is 10h.

UV index

In Santa Cruz, the average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 4 in April transforms into this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What are the temperatures in Santa Cruz in April?

In Santa Cruz, in April, the average high-temperature is 63.1°F (17.3°C), and the average low-temperature is 47.3°F (8.5°C).

What is the average humidity in April in Santa Cruz?

The average relative humidity in April in Santa Cruz, California, is 73%.

How much does it rain in Santa Cruz in April?

In Santa Cruz, in April, it is raining for 9 days, with typically 0.94" (24mm) of accumulated precipitation.

What is the month with the coldest ocean in Santa Cruz?

April is the month with the coldest seawater in Santa Cruz, California, with an average ocean temperature of 54°F (12.2°C).

What is the water temperature in April in Santa Cruz?

In April, the average ocean temperature is 54°F (12.2°C). Swimming in 54°F (12.2°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

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

The average day length in April in Santa Cruz is 13h and 10min.

When are sunrise and sunset in April in Santa Cruz?

In April, on the first day of the month, sunrise is at 6:52 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 7:56 pm PDT.

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

In April, the average sunshine duration in Santa Cruz, California, is 10h.

What is the UV index reading in April in Santa Cruz?

The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unsafe 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 Cruz, CA

Average temperature in April - Santa Cruz, CA
  • Average high temperature in April: 63.1°F

The warmest months (with the highest average high temperature) are August and September (73°F).
The month with the lowest average high temperature is December (57.2°F).

  • Average low temperature in April: 47.3°F

The month with the highest average low temperature is September (55.2°F).
The coldest month (with the lowest average low temperature) is February (45.5°F).

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Average pressure in April
Santa Cruz, CA

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

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Average wind speed in April
Santa Cruz, CA

Average wind speed in April - Santa Cruz, CA
  • Average wind speed in April: 7.4mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in April
Santa Cruz, CA

Average humidity in April - Santa Cruz, CA
  • Average humidity in April: 73%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in April
Santa Cruz, CA

Average rainfall in April - Santa Cruz, CA
  • Average rainfall in April: 0.94"

The wettest month (with the highest rainfall) is December (2.8").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in April
Santa Cruz, CA

Average rainfall days in April - Santa Cruz, CA
  • Average rainfall days in April: 9 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (1.2 days).

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Average sea temperature in April
Santa Cruz, CA

Average sea temperature in April - Santa Cruz, CA
  • Average sea temperature in April: 53.9°F

The best month for swimming (with the highest average sea temperature) is September (58.2°F).
The coldest month (with the lowest average sea temperature) is April (53.9°F).

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Average daylight in April /
Average sunshine in April
Santa Cruz, CA

Average daylight in April / Average sunshine in April - Santa Cruz, 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 42min).

  • Average sunshine in April: 10h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).

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Average sunshine days in April
Santa Cruz, CA

Average sunshine days in April - Santa Cruz, CA
  • Average sunshine days in April: 19.9 days

The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (16.4 days).

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Average UV index in April
Santa Cruz, CA

Average UV index in April - Santa Cruz, CA
  • Average UV index in April: 4

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are February and November (UV index 3).

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Average cloud cover in April
Santa Cruz, CA

Average cloud cover in April - Santa Cruz, CA
  • Average cloud cover in April: 30

The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are July and September (Cloud cover 15).

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Average visibility in April
Santa Cruz, CA

Average visibility in April - Santa Cruz, 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 Cruz, California, USA

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