Sea Temperature in Oceanside in December

Complete information on the sea temperature range in the Pacific Ocean in Oceanside in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Oceanside. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Water Temperature Range in Oceanside in December

14°C

MINIMUN

16°C

AVERAGE

18°C

MAXIMUM

Historical Data of Water Temperature in December in Oceanside

Water Temperature Chart for Pacific Ocean in Oceanside in December

Sea Temperature Table in Oceanside in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	15°C	18°C	16°C	16.8°C
Dec 2	15°C	17°C	16°C	16.3°C
Dec 3	15°C	16°C	15°C	15.8°C
Dec 4	16°C	16°C	16°C	16.3°C
Dec 5	16°C	17°C	16°C	16.5°C
Dec 6	15°C	16°C	16°C	16.0°C
Dec 7	15°C	17°C	16°C	16.0°C
Dec 8	15°C	15°C	17°C	15.8°C
Dec 9	15°C	15°C	17°C	15.8°C
Dec 10	14°C	17°C	16°C	16.0°C
Dec 11	15°C	17°C	15°C	15.8°C
Dec 12	15°C	17°C	15°C	16.0°C
Dec 13	14°C	16°C	16°C	15.5°C
Dec 14	14°C	16°C	15°C	15.3°C
Dec 15	14°C	16°C	14°C	15.0°C
Dec 16	15°C	16°C	15°C	15.5°C
Dec 17	14°C	17°C	15°C	15.3°C
Dec 18	14°C	16°C	15°C	15.3°C
Dec 19	15°C	17°C	15°C	15.5°C
Dec 20	15°C	16°C	15°C	15.3°C
Dec 21	15°C	17°C	14°C	15.3°C
Dec 22	14°C	16°C	15°C	15.0°C
Dec 23	14°C	17°C	14°C	15.3°C
Dec 24	14°C	17°C	15°C	15.3°C
Dec 25	14°C	17°C	15°C	15.5°C
Dec 26	14°C	17°C	15°C	15.3°C
Dec 27	14°C	17°C	15°C	15.3°C
Dec 28	15°C	17°C	15°C	15.5°C
Dec 29	15°C	17°C	15°C	15.5°C
Dec 30	14°C	17°C	14°C	15.0°C

Oceanside Climate and Swimming Opportunities in December

19°C

Average Day Air Temperature

7°C

Average Night Air Temperature

48 mm

Precipitation Amount per Month

5 days

Number of Rainy Days

10 hrs

Daylight
per Day

7 hrs

Sunshine
per Day

9 km/h

Average Wind Speed

65%

Average
humidity

Oceanside lies within the California in United States. The average daytime temperature in Oceanside in December is 66°F (19°C), while the nighttime average is 45°F (7°C). There are typically five rainy days during the month, with a total precipitation of 1.9 inches (48 mm). The daylight duration in December in Oceanside is 10 hours, with an average of 7 hours of sunshine per day. The average wind speed in December is 6 mph (9 km/h), and the humidity level is around 65%.

The water temperature in Oceanside in December ranges from 59°F to 61°F (15°C to 16°C). At the beginning of the month, the average temperature is around 61°F (16°C), shifting to 61°F (16°C) by mid-December and reaching 59°F (15°C) in the last ten days. Overall, the average sea temperature in Oceanside for December is 61°F (16°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Oceanside

What is the sea temperature in Oceanside in December?

The water temperature in the Pacific Ocean in Oceanside in December ranges from 59°F to 61°F (15°C to 16°C).

Is it possible to swim in the Pacific Ocean in Oceanside in December?

The average sea temperature in Oceanside in December is 61°F (16°C), and the air temperature is 66°F (19°C), so ideal conditions for a refreshing swim, though some may still find it a bit cool.