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

8°C

MINIMUN

10°C

AVERAGE

12°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	11°C	11°C	10°C	11.0°C
Dec 2	10°C	11°C	10°C	10.8°C
Dec 3	10°C	10°C	10°C	10.5°C
Dec 4	10°C	10°C	10°C	10.5°C
Dec 5	10°C	11°C	10°C	10.8°C
Dec 6	10°C	11°C	10°C	10.5°C
Dec 7	10°C	11°C	10°C	10.5°C
Dec 8	10°C	10°C	11°C	10.3°C
Dec 9	10°C	10°C	11°C	10.3°C
Dec 10	10°C	10°C	10°C	10.3°C
Dec 11	10°C	10°C	10°C	10.3°C
Dec 12	10°C	11°C	10°C	10.5°C
Dec 13	10°C	11°C	10°C	10.5°C
Dec 14	10°C	11°C	10°C	10.5°C
Dec 15	10°C	11°C	10°C	10.5°C
Dec 16	10°C	10°C	10°C	10.0°C
Dec 17	10°C	10°C	10°C	10.3°C
Dec 18	9°C	11°C	10°C	10.3°C
Dec 19	10°C	11°C	9°C	10.3°C
Dec 20	10°C	10°C	9°C	9.8°C
Dec 21	10°C	11°C	9°C	10.0°C
Dec 22	9°C	11°C	9°C	10.0°C
Dec 23	10°C	11°C	9°C	10.3°C
Dec 24	10°C	11°C	9°C	10.0°C
Dec 25	10°C	11°C	9°C	10.0°C
Dec 26	9°C	10°C	9°C	9.5°C
Dec 27	10°C	11°C	9°C	9.8°C
Dec 28	9°C	11°C	9°C	9.5°C
Dec 29	10°C	11°C	9°C	9.8°C
Dec 30	11°C	11°C	9°C	10.0°C

Oceanside Climate and Swimming Opportunities in December

10°C

Average Day Air Temperature

2°C

Average Night Air Temperature

347 mm

Precipitation Amount per Month

21 days

Number of Rainy Days

9 hrs

Daylight
per Day

2 hrs

Sunshine
per Day

19 km/h

Average Wind Speed

85%

Average
humidity

Oceanside lies within the Oregon in United States. The average daytime temperature in Oceanside in December is 49°F (10°C), while the nighttime average is 36°F (2°C). There are typically 21 rainy days during the month, with a total precipitation of 13.7 inches (347 mm). The daylight duration in December in Oceanside is 9 hours, with an average of 2 hours of sunshine per day. The average wind speed in December is 12 mph (19 km/h), and the humidity level is around 85%.

The water temperature in Oceanside in December ranges from 48°F to 52°F (9°C to 11°C). At the beginning of the month, the average temperature is around 52°F (11°C), shifting to 50°F (10°C) by mid-December and reaching 50°F (10°C) in the last ten days. Overall, the average sea temperature in Oceanside for December is 50°F (10°C). Still too cold for most swimmers. Only short dips in proper gear are advisable.

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 48°F to 52°F (9°C to 11°C).

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

The average sea temperature in Oceanside in December is 50°F (10°C), and the air temperature is 49°F (10°C), so still too cold for most swimmers. Only short dips in proper gear are advisable.