All data are in degrees Fahrenheit

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Water temperature in Santa Monica

Detailed information about the current water temperature in Santa Monica. 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 Santa Monica now

77.3

°F

December 16, 08:38

Trend:

increasing

Yesterday:

76.6°F

Tomorrow:

77.6°F

Sunrise:

06:13

Sunset:

20:06

Day Length:

13 h. 53 min.

Santa Monica in December

Minimum:

76.6°F

Average:

78.8°F

Maximum:

81.2°F

Sea water temperature in Santa Monica today

As of now, in Santa Monica, the water temperature is 77.3°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.0°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

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 77.2°F on 2020, while the historical minimum was 73.0°F on 2016.

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 minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 77.8°F, with minimum temperature starting at 77.6°F, while the maximum might reach 78.3°F.

Daily water temperature in Santa Monica

Date Current Year

actual* / forecast**

last year 10 years average
Dec 2 71.4°F 74.7°F 73.9°F
Dec 3 72.6°F 74.7°F 73.8°F
Dec 4 72.8°F 74.6°F 73.9°F
Dec 5 72.2°F 74.6°F 73.8°F
Dec 6 72.9°F 74.0°F 73.9°F
Dec 7 72.8°F 75.3°F 74.2°F
Dec 8 73.9°F 75.2°F 74.1°F
Dec 9 73.8°F 75.0°F 74.1°F
Dec 10 75.0°F 74.9°F 74.6°F
Dec 11 75.2°F 74.2°F 74.6°F
Dec 12 75.2°F 72.6°F 74.7°F
Dec 13 74.5°F 72.7°F 74.6°F
Dec 14 75.6°F 73.0°F 75.2°F
Dec 15 76.6°F 73.9°F 75.4°F
Dec 16 77.3°F 74.9°F 75.3°F
Dec 17 77.6°F 75.1°F 75.6°F
Dec 18 77.6°F 75.3°F 75.6°F
Dec 19 77.6°F 75.1°F 75.6°F
Dec 20 77.6°F 75.2°F 75.6°F
Dec 21 78.0°F 75.7°F 76.0°F
Dec 22 78.3°F 75.3°F 76.3°F
Dec 23 78.0°F 74.4°F 76.0°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 Santa Monica by month

In Santa Monica, the months December through April offer comfortable swimming conditions, which amounts to 157 swimming days.
The warmest water in Santa Monica was recorded on February 6, 2025, reaching a 83.4°F. While the coldest temperature occurred on June 14, 2016, dipping to 59.3°F. The average readings by season are 77.8°F in Winter, 74.8°F in Spring, 65.4°F in Summer, and 69.2°F in Autumn.