Sea Temperature in Half Moon Bay in April

Complete information on the sea temperature range in the Pacific Ocean in Half Moon Bay in April. Historical daily data. Climate details for April. Tips on swimming conditions and beach relaxation in Half Moon Bay. 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 Half Moon Bay in April

50°F

MINIMUN

55°F

AVERAGE

61°F

MAXIMUM

Historical Data of Water Temperature in April in Half Moon Bay

Water Temperature Chart for Pacific Ocean in Half Moon Bay in April

Sea Temperature Table in Half Moon Bay in April Over the Past Years

Day	2024	2023	2022	Average
Apr 1	54°C	57°C	52°C	55°C
Apr 2	54°C	57°C	57°C	55°C
Apr 3	55°C	57°C	57°C	56°C
Apr 4	57°C	55°C	54°C	55°C
Apr 5	55°C	57°C	55°C	56°C
Apr 6	55°C	57°C	55°C	56°C
Apr 7	55°C	57°C	57°C	56°C
Apr 8	55°C	55°C	57°C	56°C
Apr 9	55°C	57°C	54°C	55°C
Apr 10	57°C	57°C	54°C	55°C
Apr 11	57°C	57°C	57°C	57°C
Apr 12	57°C	57°C	54°C	56°C
Apr 13	57°C	57°C	52°C	55°C
Apr 14	59°C	57°C	55°C	57°C
Apr 15	59°C	57°C	54°C	56°C
Apr 16	59°C	59°C	50°C	56°C
Apr 17	59°C	57°C	55°C	56°C
Apr 18	59°C	57°C	57°C	57°C
Apr 19	57°C	59°C	50°C	55°C
Apr 20	59°C	59°C	50°C	56°C
Apr 21	59°C	59°C	52°C	56°C
Apr 22	59°C	57°C	54°C	56°C
Apr 23	59°C	59°C	54°C	57°C
Apr 24	59°C	57°C	57°C	57°C
Apr 25	59°C	57°C	50°C	55°C
Apr 26	59°C	57°C	57°C	57°C
Apr 27	57°C	57°C	55°C	56°C
Apr 28	59°C	57°C	50°C	55°C
Apr 29	59°C	57°C	50°C	55°C

Half Moon Bay Climate and Swimming Opportunities in April

66°F

Average Day Air Temperature

50°F

Average Night Air Temperature

2 in

Precipitation Amount per Month

6 days

Number of Rainy Days

13 hrs

Daylight
per Day

10 hrs

Sunshine
per Day

10 mph

Average Wind Speed

70%

Average
humidity

Half Moon Bay lies within the California in United States. The average daytime temperature in Half Moon Bay in April is 66°F (19°C), while the nighttime average is 49°F (10°C). There are typically six rainy days during the month, with a total precipitation of 2.0 inches (50 mm). The daylight duration in April in Half Moon Bay is 13 hours, with an average of 10 hours of sunshine per day. The average wind speed in April is 10 mph (16 km/h), and the humidity level is around 70%.

The water temperature in Half Moon Bay in April ranges from 54°F to 57°F (12°C to 14°C). At the beginning of the month, the average temperature is around 55°F (13°C), shifting to 55°F (13°C) by mid-April and reaching 55°F (13°C) in the last ten days. Overall, the average sea temperature in Half Moon Bay for April is 55°F (13°C). Ideal conditions for a refreshing swim, though some may still find it a bit cool.

Sea Temperature in April in Nearby Cities

Frequently Asked Questions About Water Temperatures in April in Half Moon Bay

What is the sea temperature in Half Moon Bay in April?

The water temperature in the Pacific Ocean in Half Moon Bay in April ranges from 54°F to 57°F (12°C to 14°C).

Is it possible to swim in the Pacific Ocean in Half Moon Bay in April?

The average sea temperature in Half Moon Bay in April is 55°F (13°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.