April weather forecast
Cayucos, CA

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Weather in April

April, the same as March, is another comfortable spring month in Cayucos, California, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 65.3°F (18.5°C).

Temperature

April reports an average high-temperature of a still enjoyable 65.3°F (18.5°C), slightly varied from March's 62.6°F (17°C). Cayucos, in April, witnesses an average low-temperature of 49.3°F (9.6°C).

Humidity

In Cayucos, the average relative humidity in April is 68%.

Rainfall

In Cayucos, in April, during 6.2 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Cayucos, during the entire year, the rain falls for 53.7 days and collects up to 8.58" (218mm) of precipitation.

Ocean temperature

April and May, with an average ocean temperature of 54.3°F (12.4°C), are months with the coldest seawater.
Note: Swimming in 54.3°F (12.4°C) poses a severe threat. Even short exposure to 55.4°F (13°C) is chilling, and going below 50°F (10°C) can cause breathing irregularities and intense cold shock, based on one's stamina.

Daylight

The average length of the day in April is 13h and 7min.
On the first day of April, sunrise is at 6:48 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:49 pm PDT.

Sunshine

The average sunshine in April is 10.8h.

UV index

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily maximum UV index of 4 in April interprets into the following advice:
Undertake protective steps - Preventing sun damage is advised. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Cayucos in April?

During April, Cayucos experiences an average high-temperature of 65.3°F (18.5°C) and a low-temperature of 49.3°F (9.6°C).

What is the average humidity in April?

The average relative humidity in April is 68%.

How many days does it rain in April?

In Cayucos, during April, the rain falls for 6.2 days and regularly aggregates up to 0.51" (13mm) of precipitation.

What months are the ocean coldest?

The months with the coldest seawater are April and May, with an average ocean temperature of 54.3°F (12.4°C).

What is the water temperature in April in Cayucos?

In Cayucos, the average seawater temperature in April is 54.3°F (12.4°C). Swimming in 54.3°F (12.4°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.

How many hours of daylight does Cayucos have in April?

The average day length in April is 13h and 7min.

What time are sunrise and sunset in April?

In April, on the first day of the month, sunrise is at 6:48 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:49 pm PDT.

How long on average sun shines in April?

The average sunshine duration in April is 10.8h.

What is the month with the lowest UV index?

January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index.

What is the UV index intensity in April?

The average daily maximum UV index in April in Cayucos, California, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.

Average temperature in April
Cayucos, CA

Average temperature in April - Cayucos, CA
  • Average high temperature in April: 65.3°F

The warmest month (with the highest average high temperature) is September (76.3°F).
The month with the lowest average high temperature is December (59.2°F).

  • Average low temperature in April: 49.3°F

The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is February (47.3°F).

Average pressure in April
Cayucos, CA

Average pressure in April - Cayucos, CA
  • Average pressure in April: 30.02"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June and September (29.91"Hg).

Average wind speed in April
Cayucos, CA

Average wind speed in April - Cayucos, CA
  • Average wind speed in April: 7.8mph

The windiest month (with the highest average wind speed) is May (7.9mph).
The calmest months (with the lowest average wind speed) are August and September (6mph).

Average humidity in April
Cayucos, CA

Average humidity in April - Cayucos, CA
  • Average humidity in April: 68%

The month with the highest relative humidity is March (70%).
The months with the lowest relative humidity are September and October (61%).

Average rainfall in April
Cayucos, CA

Average rainfall in April - Cayucos, CA
  • Average rainfall in April: 0.51"

The wettest month (with the highest rainfall) is January (1.81").
The driest month (with the least rainfall) is August (0.04").

Average rainfall days in April
Cayucos, CA

Average rainfall days in April - Cayucos, CA
  • Average rainfall days in April: 6.2 days

The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.7 days).

Average sea temperature in April
Cayucos, CA

Average sea temperature in April - Cayucos, CA
  • Average sea temperature in April: 54.3°F

The best months for swimming (with the highest average sea temperature) are August and October (58.6°F).
The coldest month (with the lowest average sea temperature) is April (54.3°F).

Average daylight in April /
Average sunshine in April
Cayucos, CA

Average daylight in April / Average sunshine in April - Cayucos, CA
  • Average daylight in April: 13h and 1min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in April: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in April
Cayucos, CA

Average sunshine days in April - Cayucos, CA
  • Average sunshine days in April: 23.1 days

The month with the most sunshine days is August (28.8 days).
The month with the least sunshine days is February (20.1 days).

Average UV index in April
Cayucos, CA

Average UV index in April - Cayucos, CA
  • Average UV index in April: 4

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).

Average cloud cover in April
Cayucos, CA

Average cloud cover in April - Cayucos, CA
  • Average cloud cover in April: 20

The month with the most cloud cover is March (Cloud cover 28).
The months with the least cloud cover are August and September (Cloud cover 7).

Average visibility in April
Cayucos, CA

Average visibility in April - Cayucos, 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).

Cayucos, California, USA

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