Sea Temperature in Castro Marim in December

Complete information on the sea temperature range in the Atlantic Ocean in Castro Marim in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Castro Marim. 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 Castro Marim in December

15°C

MINIMUN

17.5°C

AVERAGE

20°C

MAXIMUM

Historical Data of Water Temperature in December in Castro Marim

Water Temperature Chart for Atlantic Ocean in Castro Marim in December

Sea Temperature Table in Castro Marim in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	18°C	17°C	18°C	17.5°C
Dec 2	19°C	17°C	18°C	17.8°C
Dec 3	19°C	18°C	17°C	17.8°C
Dec 4	19°C	18°C	18°C	17.8°C
Dec 5	18°C	17°C	18°C	17.5°C
Dec 6	19°C	17°C	18°C	17.8°C
Dec 7	18°C	17°C	17°C	17.3°C
Dec 8	18°C	18°C	17°C	17.3°C
Dec 9	18°C	18°C	17°C	17.5°C
Dec 10	18°C	17°C	17°C	17.0°C
Dec 11	18°C	17°C	17°C	17.0°C
Dec 12	18°C	18°C	16°C	17.3°C
Dec 13	18°C	17°C	17°C	17.3°C
Dec 14	17°C	18°C	17°C	17.0°C
Dec 15	18°C	17°C	17°C	17.0°C
Dec 16	17°C	17°C	17°C	16.8°C
Dec 17	18°C	17°C	17°C	17.0°C
Dec 18	17°C	17°C	17°C	16.8°C
Dec 19	16°C	17°C	17°C	16.5°C
Dec 20	17°C	17°C	17°C	16.8°C
Dec 21	17°C	17°C	16°C	16.5°C
Dec 22	17°C	17°C	18°C	17.0°C
Dec 23	17°C	17°C	17°C	16.8°C
Dec 24	17°C	17°C	16°C	16.5°C
Dec 25	17°C	17°C	17°C	16.8°C
Dec 26	17°C	17°C	16°C	16.8°C
Dec 27	17°C	17°C	17°C	16.8°C
Dec 28	18°C	18°C	17°C	17.5°C
Dec 29	17°C	17°C	18°C	17.0°C
Dec 30	17°C	17°C	18°C	17.3°C

Castro Marim Climate and Swimming Opportunities in December

17°C

Average Day Air Temperature

9°C

Average Night Air Temperature

99 mm

Precipitation Amount per Month

9 days

Number of Rainy Days

9 hrs

Daylight
per Day

5 hrs

Sunshine
per Day

14 km/h

Average Wind Speed

77%

Average
humidity

Castro Marim lies within the Faro District in Portugal. The average daytime temperature in Castro Marim in December is 17°C (62°F), while the nighttime average is 9°C (48°F). There are typically nine rainy days during the month, with a total precipitation of 99 mm (3.9 inches). The daylight duration in December in Castro Marim is 9 hours, with an average of 5 hours of sunshine per day. The average wind speed in December is 14 km/h (9 mph), and the humidity level is around 77%.

The water temperature in Castro Marim in December ranges from 16°C to 17°C (61°F to 63°F). At the beginning of the month, the average temperature is around 18°C (64°F), shifting to 17°C (63°F) by mid-December and reaching 17°C (63°F) in the last ten days. Overall, the average sea temperature in Castro Marim for December is 17°C (63°F). 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 Castro Marim

What is the sea temperature in Castro Marim in December?

The water temperature in the Atlantic Ocean in Castro Marim in December ranges from 16°C to 17°C (61°F to 63°F).

Is it possible to swim in the Atlantic Ocean in Castro Marim in December?

The average sea temperature in Castro Marim in December is 17°C (63°F), and the air temperature is 17°C (62°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.