Sea Temperature in Port Isabel in December

Complete information on the sea temperature range in the Gulf of Mexico (Gulf of America) in Port Isabel in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Port Isabel. 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 Port Isabel in December

61°F

MINIMUN

68°F

AVERAGE

75°F

MAXIMUM

Historical Data of Water Temperature in December in Port Isabel

Water Temperature Chart for Gulf of Mexico (Gulf of America) in Port Isabel in December

Sea Temperature Table in Port Isabel in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	73°C	70°C	68°C	71°C
Dec 2	73°C	70°C	68°C	71°C
Dec 3	73°C	70°C	68°C	71°C
Dec 4	75°C	70°C	68°C	72°C
Dec 5	73°C	68°C	68°C	71°C
Dec 6	72°C	68°C	68°C	70°C
Dec 7	72°C	70°C	70°C	71°C
Dec 8	72°C	72°C	68°C	70°C
Dec 9	72°C	72°C	68°C	70°C
Dec 10	72°C	68°C	72°C	71°C
Dec 11	70°C	70°C	70°C	70°C
Dec 12	70°C	68°C	70°C	69°C
Dec 13	68°C	68°C	70°C	69°C
Dec 14	70°C	68°C	70°C	70°C
Dec 15	70°C	68°C	68°C	69°C
Dec 16	70°C	68°C	70°C	70°C
Dec 17	72°C	68°C	68°C	70°C
Dec 18	72°C	68°C	68°C	70°C
Dec 19	72°C	66°C	66°C	67°C
Dec 20	72°C	68°C	66°C	69°C
Dec 21	70°C	66°C	64°C	68°C
Dec 22	70°C	66°C	66°C	69°C
Dec 23	70°C	68°C	64°C	69°C
Dec 24	70°C	68°C	66°C	69°C
Dec 25	70°C	68°C	66°C	69°C
Dec 26	70°C	68°C	64°C	69°C
Dec 27	72°C	68°C	63°C	69°C
Dec 28	72°C	66°C	63°C	69°C
Dec 29	72°C	66°C	64°C	69°C
Dec 30	72°C	66°C	63°C	69°C

Port Isabel Climate and Swimming Opportunities in December

66°F

Average Day Air Temperature

54°F

Average Night Air Temperature

1 in

Precipitation Amount per Month

7 days

Number of Rainy Days

10 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

12 mph

Average Wind Speed

78%

Average
humidity

Port Isabel lies within the Texas in United States. The average daytime temperature in Port Isabel in December is 67°F (19°C), while the nighttime average is 53°F (12°C). There are typically seven rainy days during the month, with a total precipitation of 1.5 inches (38 mm). The daylight duration in December in Port Isabel is 10 hours, with an average of 4 hours of sunshine per day. The average wind speed in December is 12 mph (20 km/h), and the humidity level is around 78%.

The water temperature in Port Isabel in December ranges from 66°F to 72°F (19°C to 22°C). At the beginning of the month, the average temperature is around 72°F (22°C), shifting to 70°F (21°C) by mid-December and reaching 68°F (20°C) in the last ten days. Overall, the average sea temperature in Port Isabel for December is 70°F (21°C).

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Port Isabel

What is the sea temperature in Port Isabel in December?

The water temperature in the Gulf of Mexico (Gulf of America) in Port Isabel in December ranges from 66°F to 72°F (19°C to 22°C).

Is it possible to swim in the Gulf of Mexico (Gulf of America) in Port Aransas in December?

The average sea temperature in Port Aransas in December is 66°F (19°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.