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 18.09°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.

64.6

°F

May 31, 08:26

Trend:

increasing

Yesterday:

64.4°F

Tomorrow:

64.6°F

Sunrise:

05:42

Sunset:

19:53

Day Length:

14 h. 11 min.

Oceanside in June

Minimum:

58.6°F

Average:

60.1°F

Maximum:

63.1°F

Sea water temperature in Oceanside today

As of now, in Oceanside, the water temperature is 64.6°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 about the same as 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 66.7°F on 2025, while the historical minimum was 63.0°F on 2017.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 64.8°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
May 17	65.8°F	64.1°F	64.2°F
May 18	65.5°F	63.8°F	64.2°F
May 19	65.7°F	64.1°F	64.5°F
May 20	65.9°F	64.2°F	64.5°F
May 21	66.7°F	65.2°F	64.4°F
May 22	67.3°F	66.8°F	64.5°F
May 23	67.4°F	67.7°F	64.5°F
May 24	67.5°F	67.5°F	64.6°F
May 25	67.5°F	67.6°F	64.7°F
May 26	66.6°F	67.0°F	64.7°F
May 27	65.0°F	67.6°F	64.7°F
May 28	64.7°F	67.5°F	64.6°F
May 29	64.5°F	67.7°F	64.6°F
May 30	64.4°F	66.6°F	64.5°F
May 31	64.6°F	66.7°F	64.6°F
Jun 1	64.6°F	68.0°F	64.6°F
Jun 2	64.5°F	67.7°F	64.5°F
Jun 3	64.6°F	67.2°F	64.6°F
Jun 4	64.7°F	67.0°F	64.7°F
Jun 5	64.9°F	66.2°F	65.0°F
Jun 6	65.0°F	66.0°F	65.1°F
Jun 7	65.1°F	66.0°F	65.1°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, 69.7°F in Summer, and 67.6°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Laguna Beach	62.2°F	33mi
San Diego	63.7°F	35mi
Tijuana	62.8°F	53mi
Long Beach	59.9°F	61mi

* current water temperature in this city

** straight line distance from Oceanside