Sea Temperature in San Diego in January

Complete information on the sea temperature range in the Pacific Ocean in San Diego in January. Historical daily data. Climate details for January. Tips on swimming conditions and beach relaxation in San Diego. 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 San Diego in January

55°F

MINIMUN

59°F

AVERAGE

63°F

MAXIMUM

Historical Data of Water Temperature in January in San Diego

Water Temperature Chart for Pacific Ocean in San Diego in January

Sea Temperature Table in San Diego in January Over the Past Years

Day	2024	2023	2022	Average
Jan 1	59°C	61°C	59°C	59°C
Jan 2	59°C	61°C	59°C	59°C
Jan 3	59°C	61°C	59°C	59°C
Jan 4	59°C	61°C	59°C	59°C
Jan 5	59°C	61°C	59°C	59°C
Jan 6	59°C	61°C	59°C	59°C
Jan 7	57°C	59°C	59°C	58°C
Jan 8	59°C	57°C	59°C	58°C
Jan 9	59°C	59°C	59°C	58°C
Jan 10	59°C	55°C	59°C	57°C
Jan 11	57°C	61°C	59°C	58°C
Jan 12	59°C	61°C	59°C	59°C
Jan 13	59°C	61°C	59°C	59°C
Jan 14	59°C	61°C	59°C	59°C
Jan 15	59°C	61°C	59°C	59°C
Jan 16	59°C	61°C	59°C	59°C
Jan 17	59°C	61°C	59°C	59°C
Jan 18	59°C	61°C	59°C	59°C
Jan 19	59°C	61°C	59°C	59°C
Jan 20	59°C	61°C	59°C	59°C
Jan 21	59°C	61°C	59°C	59°C
Jan 22	59°C	61°C	59°C	59°C
Jan 23	59°C	61°C	59°C	59°C
Jan 24	59°C	61°C	59°C	59°C
Jan 25	61°C	61°C	59°C	59°C
Jan 26	59°C	61°C	57°C	58°C
Jan 27	57°C	59°C	59°C	58°C
Jan 28	57°C	59°C	59°C	58°C
Jan 29	57°C	59°C	59°C	58°C
Jan 30	59°C	61°C	59°C	59°C

San Diego Climate and Swimming Opportunities in January

66°F

Average Day Air Temperature

48°F

Average Night Air Temperature

2 in

Precipitation Amount per Month

6 days

Number of Rainy Days

10 hrs

Daylight
per Day

8 hrs

Sunshine
per Day

6 mph

Average Wind Speed

65%

Average
humidity

San Diego lies within the California in United States. The average daytime temperature in San Diego in January is 67°F (19°C), while the nighttime average is 48°F (9°C). There are typically six rainy days during the month, with a total precipitation of 2.1 inches (54 mm). The daylight duration in January in San Diego is 10 hours, with an average of 8 hours of sunshine per day. The average wind speed in January is 6 mph (10 km/h), and the humidity level is around 65%.

The water temperature in San Diego in January ranges from 57°F to 59°F (14°C to 15°C). At the beginning of the month, the average temperature is around 59°F (15°C), shifting to 59°F (15°C) by mid-January and reaching 59°F (15°C) in the last ten days. Overall, the average sea temperature in San Diego for January is 59°F (15°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in January in Nearby Cities

Frequently Asked Questions About Water Temperatures in January in San Diego

What is the sea temperature in San Diego in January?

The water temperature in the Pacific Ocean in San Diego in January ranges from 57°F to 59°F (14°C to 15°C).

Is it possible to swim in the Pacific Ocean in San Diego in January?

The average sea temperature in San Diego in January is 59°F (15°C), and the air temperature is 67°F (19°C), so ideal conditions for a refreshing swim, though some may still find it a bit cool.