What is the current water temperature in Oceanside?

Q: What is the current water temperature in Oceanside?

As of now, in Oceanside, the water temperature is 18.9°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

United States > Oceanside

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.

66.0

°F

April 3, 08:02

Trend:

stable

Yesterday:

66.1°F

Tomorrow:

66.2°F

Sunrise:

06:35

Sunset:

19:11

Day Length:

12 h. 36 min.

Oceanside in April

Minimum:

58.9°F

Average:

60.2°F

Maximum:

62.9°F

Sea water temperature in Oceanside today

As of now, in Oceanside, the water temperature is 66.0°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 6.3°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 61.1°F on 2017, while the historical minimum was 56.0°F on 2025.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 66.6°F, with minimum temperature starting at 66.2°F, while the maximum might reach 67.2°F.

Daily water temperature in Oceanside

Date	Current Year actual* / forecast**	last year	10 years average
Mar 20	65.9°F	57.6°F	60.6°F
Mar 21	66.7°F	57.8°F	60.7°F
Mar 22	66.8°F	58.2°F	60.7°F
Mar 23	66.7°F	58.4°F	60.8°F
Mar 24	66.3°F	59.3°F	60.8°F
Mar 25	66.8°F	59.2°F	60.7°F
Mar 26	66.2°F	58.8°F	60.4°F
Mar 27	66.4°F	58.5°F	60.4°F
Mar 28	67.3°F	59.3°F	60.4°F
Mar 29	66.6°F	59.0°F	60.2°F
Mar 30	66.6°F	58.8°F	60.2°F
Mar 31	65.7°F	58.7°F	59.9°F
Apr 1	65.6°F	59.0°F	60.0°F
Apr 2	66.1°F	58.2°F	60.2°F
Apr 3	66.0°F	56.0°F	59.7°F
Apr 4	66.2°F	56.2°F	59.9°F
Apr 5	66.3°F	57.7°F	60.0°F
Apr 6	66.2°F	56.8°F	59.9°F
Apr 7	66.4°F	56.0°F	60.1°F
Apr 8	66.7°F	56.6°F	60.4°F
Apr 9	67.2°F	58.9°F	60.9°F
Apr 10	67.1°F	59.6°F	60.8°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, 61.6°F in Spring, 69.7°F in Summer, and 67.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Laguna Beach	64.5°F	33mi
San Diego	65.4°F	35mi
Tijuana	64.1°F	53mi
Long Beach	62.9°F	61mi

* current water temperature in this city

** straight line distance from Oceanside