All data are in degrees Fahrenheit

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Water temperature in Oceanside

Detailed information about the current water temperature in Oceanside. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Oceanside now

74.2

°F

July 26, 08:53

Trend:

increasing

Yesterday:

73.9°F

Tomorrow:

74.3°F

Sunrise:

05:58

Sunset:

19:53

Day Length:

13 h. 55 min.

Oceanside in August

Minimum:

58.7°F

Average:

60.1°F

Maximum:

63.0°F

Sea water temperature in Oceanside today

As of now, in Oceanside, the water temperature is 74.2°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.5°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 75.0°F on 2016, while the historical minimum was 68.9°F on 2025.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 73.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Oceanside

Date Current Year

actual* / forecast**

last year 10 years average
Jul 12 70.6°F 67.7°F 70.3°F
Jul 13 70.9°F 69.7°F 70.7°F
Jul 14 71.6°F 69.5°F 71.1°F
Jul 15 72.5°F 69.7°F 71.5°F
Jul 16 73.9°F 70.0°F 71.7°F
Jul 17 74.0°F 70.1°F 71.8°F
Jul 18 73.8°F 70.2°F 71.6°F
Jul 19 73.7°F 70.4°F 71.9°F
Jul 20 74.3°F 70.5°F 72.1°F
Jul 21 75.2°F 70.8°F 72.0°F
Jul 22 74.4°F 70.7°F 72.1°F
Jul 23 73.9°F 70.9°F 71.8°F
Jul 24 74.0°F 71.0°F 71.7°F
Jul 25 73.9°F 70.4°F 71.8°F
Jul 26 74.2°F 68.9°F 71.6°F
Jul 27 74.3°F 68.6°F 71.8°F
Jul 28 74.1°F 67.2°F 71.6°F
Jul 29 74.0°F 66.5°F 71.5°F
Jul 30 73.9°F 66.1°F 71.3°F
Jul 31 73.6°F 66.8°F 71.1°F
Aug 1 73.7°F 68.7°F 71.2°F
Aug 2 73.9°F 69.4°F 71.3°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Oceanside by month

In an average year, Oceanside offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Oceanside was recorded on August 11, 2018, reaching a 79.1°F. While the coldest temperature occurred on April 7, 2023, dipping to 55.0°F. The average readings by season are 60.3°F in Winter, 61.8°F in Spring, 69.8°F in Summer, and 67.6°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Laguna Beach 72.6°F 33mi
San Diego 71.9°F 35mi
Tijuana 72.0°F 53mi
Long Beach 70.8°F 61mi

* current water temperature in this city

** straight line distance from Oceanside