World sea water temperatures

Water temperature in Oceanside (CA) in April

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Is it warm enough to swim in Oceanside in April? Average water temperature in Oceanside in April is 60.6°F and therefore is not suitable for comfortable swimming. The warmest sea in Oceanside in April is 66.6°F, and the coldest is 55°F. Average high air temperature in Oceanside in April is 66°F, and average low temperature is 56°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Oceanside

Changes water temperature in Oceanside in April 2025, 2024

To get an accurate forecast for the water temperature in Oceanside for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Oceanside, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of April.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
April 158.5°F59.2°F56.8°F66.2°F
April 256.1°F59.2°F56.1°F65.7°F
April 355.9°F60.1°F55.9°F65.7°F
April 457.4°F60.6°F56.3°F65.7°F
April 557.2°F59.7°F55°F65.3°F
April 656.5°F59.2°F55°F64.8°F
April 757°F59.2°F55.9°F64.2°F
April 859.2°F59.4°F56.1°F63.7°F
April 960.1°F59.5°F55.8°F63.3°F
April 1060.3°F59.9°F56.3°F63.3°F
April 1160.4°F60.6°F57.7°F63.3°F
April 1261.3°F59.9°F56.8°F62.8°F
April 1361°F59.4°F56.5°F63.1°F
April 1461.3°F59°F56.5°F63.3°F
April 1561.2°F59.4°F56.8°F63.3°F
Day 2025 2024 Min Max
April 1661°F59.9°F57.4°F63.3°F
April 1761°F60.6°F57.7°F63.5°F
April 1860.8°F61.2°F57.7°F63.9°F
April 1959.9°F61.2°F57.6°F64.2°F
April 2059°F61.3°F56.8°F64.6°F
April 2159.7°F61.7°F56.8°F64.4°F
April 2260.6°F61.7°F56.7°F64.2°F
April 2361.3°F62.1°F56.8°F63.9°F
April 2461.7°F62.4°F57°F64.2°F
April 2561.7°F62.4°F57.2°F64.9°F
April 2660.8°F61.5°F57.7°F65.1°F
April 2761.3°F61.5°F58.5°F65.7°F
April 2860.8°F62.2°F58.8°F66.6°F
April 2961.5°F62.2°F58.8°F66.2°F
April 3062.6°F62.4°F58.3°F65.8°F
Oceanside water temp chart in April

Average water temperature in Oceanside in April over a decade

20162017201820192020
63°F62.1°F60.4°F61.9°F62.1°F
20212022202320242025
61.9°F61°F58.3°F60.6°F59.9°F

Oceanside sea state in April

Chart comparing the height of waves in Oceanside in April over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Oceanside in April

Weather and climate in Oceanside in April

This data display average monthly climate indicators in Oceanside in April based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature66°F
  • Average LOW temperature56°F
  • Average rainfall23mm/0.9''

Oceanside water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in April?

Want to know where the water temperature in April is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Best Beach Resorts in California in April

Places with the warmest average sea water temperature in California in April. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Santa Monica58.6°F54°F63.9°F
La Jolla Cove61.2°F55.6°F68.7°F
Lake Tahoe44.6°F40.8°F52.7°F
Los Angeles58.8°F54.9°F63.7°F
Encinitas61°F54.9°F68.5°F
Moonlight Beach61°F55°F68.4°F
Cardiff61°F55°F68.4°F
San Elijo State Beach61°F55°F68.4°F
Swami's Beach61°F55°F68.4°F

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Oceanside has a "Blue Flag" [1] award

Sandy beach

This place is suitable for families with children

Current rating: 4,5 (4 votes cast)

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Oceanside is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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