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Sea Temperature in Chatham in December

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

4°C

MINIMUN

7.5°C

AVERAGE

11°C

MAXIMUM

Historical Data of Water Temperature in December in Chatham

Water Temperature Chart for Atlantic Ocean in Chatham in December

Sea Temperature Table in Chatham in December Over the Past Years

Day202420232022Average
Dec 19°C8°C9°C8.8°C
Dec 29°C8°C9°C8.5°C
Dec 39°C8°C9°C8.5°C
Dec 48°C8°C9°C8.3°C
Dec 58°C8°C9°C8.3°C
Dec 68°C8°C9°C8.3°C
Dec 78°C8°C9°C8.3°C
Dec 87°C8°C8°C8.0°C
Dec 97°C7°C8°C7.8°C
Dec 106°C7°C9°C7.5°C
Dec 117°C8°C8°C8.0°C
Dec 128°C8°C8°C8.0°C
Dec 138°C8°C7°C7.8°C
Dec 147°C7°C7°C7.3°C
Dec 157°C7°C7°C7.3°C
Dec 166°C7°C7°C7.0°C
Dec 177°C7°C7°C7.5°C
Dec 186°C7°C7°C7.0°C
Dec 196°C7°C6°C6.8°C
Dec 207°C8°C6°C7.3°C
Dec 217°C8°C6°C7.3°C
Dec 226°C7°C5°C6.3°C
Dec 236°C7°C6°C6.5°C
Dec 246°C6°C6°C6.3°C
Dec 256°C6°C6°C6.3°C
Dec 265°C6°C5°C5.8°C
Dec 276°C7°C5°C6.0°C
Dec 286°C7°C4°C5.8°C
Dec 296°C7°C5°C6.3°C
Dec 306°C7°C5°C6.0°C
Massachusetts, United StatesMassachusetts, United StatesMassachusetts, United States

Chatham Climate and Swimming Opportunities in December

6°C

Average Day Air Temperature

0°C

Average Night Air Temperature

111 mm

Precipitation Amount per Month

12 days

Number of Rainy Days

9 hrs

Daylight
per Day

4 hrs

Sunshine
per Day

23 km/h

Average Wind Speed

68%

Average
humidity

Chatham lies within the Massachusetts in United States. The average daytime temperature in Chatham in December is 44°F (6°C), while the nighttime average is 31°F (-0°C). There are typically 12 rainy days during the month, with a total precipitation of 4.4 inches (111 mm). The daylight duration in December in Chatham is 9 hours, with an average of 4 hours of sunshine per day. The average wind speed in December is 14 mph (23 km/h), and the humidity level is around 68%.

The water temperature in Chatham in December ranges from 41°F to 48°F (5°C to 9°C). At the beginning of the month, the average temperature is around 46°F (8°C), shifting to 46°F (8°C) by mid-December and reaching 43°F (6°C) in the last ten days. Overall, the average sea temperature in Chatham for December is 45°F (7°C). Still too cold for most swimmers. Only short dips in proper gear are advisable.

Frequently Asked Questions About Water Temperatures in December in Chatham

What is the sea temperature in Chatham in December?

The water temperature in the Atlantic Ocean in Chatham in December ranges from 41°F to 48°F (5°C to 9°C).

Is it possible to swim in the Atlantic Ocean in Chatham in December?

The average sea temperature in Chatham in December is 45°F (7°C), and the air temperature is 44°F (6°C), so still too cold for most swimmers. Only short dips in proper gear are advisable.