Oceanside
California, USA
Long-term weather forecast
Long-term weather forecast

April weather forecast and climate
Oceanside, CA

An evening panoramic view of people on the clean beach of Oceanside City in California, with buildings and palm trees with sun rays and a cloudy sky
An evening panoramic view of people on the clean beach of Oceanside City in California, with buildings and palm trees with sun rays and a cloudy sky
April, like March, in Oceanside, California, is another enjoyable spring month, with average temperature fluctuating between 55.9°F (13.3°C) and 66°F (18.9°C).

Temperature

In April, the average high-temperature is almost the same as in March - a still comfortable 66°F (18.9°C). In Oceanside, in April, the average low-temperature is 55.9°F (13.3°C).

Rainfall

During April, Oceanside regularly aggregates up to 0.9" (23.4mm) of precipitation. Throughout the year, 11.1" (282.7mm) of rain is accumulated.

Ocean temperature

In Oceanside, California, in April, the average water temperature is 60.4°F (15.8°C).
Note: For swimming, a surface water temperature of 60.4°F (15.8°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

Daylight

In Oceanside, the average length of the day in April is 13h.

What is the temperature in April in Oceanside?

In Oceanside, California, in April, the average high-temperature is 66°F (18.9°C), and the average low-temperature is 55.9°F (13.3°C).

How much does it rain in Oceanside in April?

In Oceanside, in April, 0.9" (23.4mm) of precipitation is typically accumulated.

How cold is the water in April in Oceanside?

In Oceanside, California, the average seawater temperature in April is 60.4°F (15.8°C). Swimming in 60.4°F (15.8°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

What is the average length of the day in April in Oceanside?

In April, the average length of the day in Oceanside is 13h.
Average temperature in April - Oceanside, CA
  • Average high temperature in April: 66°F

The warmest month (with the highest average high temperature) is July (73.9°F).
Months with the lowest average high temperature are January, February and December (64°F).

  • Average low temperature in April: 55.9°F

The month with the highest average low temperature is July (64°F).
Coldest months (with the lowest average low temperature) are January and December (45°F).

Average rainfall in April - Oceanside, CA
  • Average rainfall in April: 0.9"

The wettest month (with the highest rainfall) is January (2.4").
The driest month (with the lowest rainfall) is July (0").

Average sea temperature in April - Oceanside, CA
  • Average sea temperature in April: 60.4°F

The best month for swimming (with the highest average sea temperature) is August (68°F).
Coldest months (with the lowest average sea temperature) are January and February (58.7°F).

Average daylight in April - Oceanside, CA
  • Average daylight in April: 13h

The month with the longest days is June (Average daylight: 14.3h).
The month with shortest days is December (Average daylight: 10h).