April weather forecast and climate
Monterey, CA

The rugged mountainous coast of Big Sur in Monterey, California
The rugged mountainous coast of Big Sur in Monterey, California

Weather in April

April is a comfortable spring month in Monterey, California, with average temperature fluctuating between 61.3°F (16.3°C) and 47.3°F (8.5°C).

Temperature

In Monterey, the average high-temperature in April is essentially the same as in March - an enjoyable 61.3°F (16.3°C). In Monterey, the average low-temperature is 47.3°F (8.5°C).

Humidity

In April, the average relative humidity is 75%.

Rainfall

In Monterey, in April, it is raining for 8 days, with typically 0.83" (21mm) of accumulated precipitation. In Monterey, during the entire year, the rain falls for 73.6 days and collects up to 11.77" (299mm) of precipitation.

Ocean temperature

The month with the coldest seawater is April, with an average ocean temperature of 53.8°F (12.1°C).
Note: Swimming in 53.8°F (12.1°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.

Daylight

In April, the average length of the day is 13.2h.

Sunshine

In Monterey, the average sunshine in April is 10.3h.

UV index

The average daily maximum UV index in Monterey is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 4 in April interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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.
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FAQ

What is the temperature in April in Monterey?

In Monterey, California, in April, the average high-temperature is 61.3°F (16.3°C), and the average low-temperature is 47.3°F (8.5°C).

What is the average humidity in April in Monterey?

In Monterey, California, the average relative humidity in April is 75%.

How many days does it rain in April in Monterey?

In Monterey, California, during April, the rain falls for 8 days and regularly aggregates up to 0.83" (21mm) of precipitation.

When is the ocean coldest in Monterey?

With an average ocean temperature of 53.8°F (12.1°C), April is the month with the coldest seawater.

What is the water temperature in April in Monterey?

In Monterey, the average seawater temperature in April is 53.8°F (12.1°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Monterey have in April?

In April, the average length of the day in Monterey is 13.2h.

How many hours of sunshine does Monterey have in April?

In April, the average sunshine in Monterey is 10.3h.

How high is the UV index in April in Monterey?

In April, the average daily maximum UV index in Monterey is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in April
Monterey, CA

Average temperature in April - Monterey, CA
  • Average high temperature in April: 61.3°F

The warmest month (with the highest average high temperature) is September (72.5°F).
The month with the lowest average high temperature is December (57.2°F).

  • Average low temperature in April: 47.3°F

Months with the highest average low temperature are August and September (55.2°F).
The coldest month (with the lowest average low temperature) is February (46°F).

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Average pressure in April
Monterey, CA

Average pressure in April - Monterey, CA
  • Average pressure in April: 30.04"

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

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Average wind speed in April
Monterey, CA

Average wind speed in April - Monterey, CA
  • Average wind speed in April: 7.5mph

The windiest months (with the highest average wind speed) are April and May (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in April
Monterey, CA

Average humidity in April - Monterey, CA
  • Average humidity in April: 75%

Months with the highest relative humidity are March and May (76%).
The month with the lowest relative humidity is November (68%).

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Average rainfall in April
Monterey, CA

Average rainfall in April - Monterey, CA
  • Average rainfall in April: 0.83"

The wettest month (with the highest rainfall) is December (2.4").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in April
Monterey, CA

Average rainfall days in April - Monterey, CA
  • Average rainfall days in April: 8 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (1.1 days).

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Average sea temperature in April
Monterey, CA

Average sea temperature in April - Monterey, CA
  • Average sea temperature in April: 53.8°F

The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

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

Average daylight in April / Average sunshine in April - Monterey, CA
  • Average daylight in April: 13.2h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in April: 10.3h

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

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Average sunshine days in April
Monterey, CA

Average sunshine days in April - Monterey, CA
  • Average sunshine days in April: 20.3 days

The month with the most sunshine days is July (27.3 days).
The month with the least sunshine days is March (16.8 days).

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Average UV index in April
Monterey, CA

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

Months with the highest UV index are June, July, August and September (UV index 5).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in April
Monterey, CA

Average cloud cover in April - Monterey, CA
  • Average cloud cover in April: 27

The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 9).

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Average visibility in April
Monterey, CA

Average visibility in April - Monterey, CA
  • Average visibility in April: 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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