December Weather in Cotuit, United States

Last updated: June 24, 2025

In December, the average temperature in Cotuit, United States hovers around 4°C (40°F). Expect a chilly minimum of -12°C (11°F) and a warm maximum of 16°C (61°F). This month also sees about 129 mm (5.1 in) of precipitation over 11 days, contributing to an average humidity level of 80%. Prepare accordingly for a mix of rainy and cool conditions!

December Temperature in Cotuit

In December in Cotuit, the average temperature is 4°C (40°F). Maximums can reach 16°C (61°F), while minimums can drop as low as -12°C (11°F). Be prepared for a mix of chilly and mild weather during your travels.

December Weather in Cotuit: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Cotuit, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cotuit, December typically has an average temperature of 4°C (40°F), with highs reaching up to 16°C (61°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec353638465463717267604940
Data source: Temperature data for Cotuit generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Cotuit

In Cotuit in December, the precipitation amount is 129 mm (5.1 in) spread over 11 days, indicating a wet period for the area.

December Precipitation Trends in Cotuit

The chart displays monthly precipitation patterns in Cotuit, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Cotuit, December typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec93118116134119908486117168103129
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cotuit

In Cotuit in December, humidity is 80%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring careful planning for warmth and moisture management.

December Average Humidity in Cotuit

This chart illustrates the average monthly humidity levels in Cotuit, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Cotuit is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%84%82%79%75%78%76%76%76%75%80%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cotuit

In Cotuit in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Cotuit, you can visit Hourly UV Index in Cotuit.

Maximum UV Index Levels in Cotuit for December

The chart shows the monthly maximum UV Index (UVI) for Cotuit in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Cotuit typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468910998642
Data source: Cotuit December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Cotuit Compares to Other Months

Weather in Cotuit varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cotuit, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Cotuit, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (35°F)93 mm (3.7 inches)84%moderate
February Weather2°C (36°F)118 mm (4.6 inches)84%moderate
March Weather3°C (38°F)116 mm (4.6 inches)82%high
April Weather8°C (46°F)133 mm (5.3 inches)79%very high
May Weather12°C (54°F)119 mm (4.7 inches)75%very high
June Weather17°C (63°F)90 mm (3.5 inches)78%very high
July Weather22°C (71°F)84 mm (3.3 inches)76%very high
August Weather22°C (73°F)86 mm (3.4 inches)76%very high
September Weather20°C (67°F)117 mm (4.6 inches)75%very high
October Weather15°C (60°F)168 mm (6.6 inches)75%high
November Weather9°C (49°F)103 mm (4.0 inches)80%moderate
December Weather4°C (40°F)129 mm (5.1 inches)80%low

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