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December Weather in Coupeville, United States

Last updated: June 24, 2025

In December, the average temperature in Coupeville, United States hovers around 7°C (44°F), with a minimum dipping as low as -6°C (21°F) and a maximum reaching 12°C (55°F). Expect 177 mm (7.0 in) of precipitation spread over 20 days, contributing to an average humidity of 87%. Be prepared for a wet and chilly atmosphere as you explore this picturesque destination!

December Temperature in Coupeville

In December in Coupeville, the average temperature is 7°C (44°F). Maximums can reach 12°C (55°F) and minimums can drop as low as -6°C (21°F). Be prepared for chilly weather and pack accordingly for your travels.

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

The chart illustrates December temperature patterns in Coupeville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Coupeville, December typically has an average temperature of 7°C (44°F), with highs reaching up to 12°C (55°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec444245495357596158524844
Data source: Temperature data for Coupeville 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 Coupeville

In Coupeville in December, the precipitation amount reaches 177 mm (7.0 in) over the course of 20 days.

December Precipitation Trends in Coupeville

The chart displays monthly precipitation patterns in Coupeville, 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 Coupeville, December typically receives around 177 mm (7.0 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec150154118865453282687133189177
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Coupeville

In Coupeville in December, humidity is 87%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring travelers to layer up to stay warm and dry.

December Average Humidity in Coupeville

This chart illustrates the average monthly humidity levels in Coupeville, 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 Coupeville is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Coupeville

In Coupeville in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Coupeville.

Maximum UV Index Levels in Coupeville for December

The chart shows the monthly maximum UV Index (UVI) for Coupeville 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 Coupeville typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987521
Data source: Coupeville 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 Coupeville Compares to Other Months

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

This table compares monthly weather conditions in Coupeville, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)150 mm (5.9 inches)86%low
February Weather6°C (42°F)154 mm (6.1 inches)85%moderate
March Weather7°C (45°F)118 mm (4.6 inches)86%moderate
April Weather9°C (49°F)86 mm (3.4 inches)86%high
May Weather12°C (54°F)54 mm (2.1 inches)81%very high
June Weather14°C (57°F)53 mm (2.1 inches)83%very high
July Weather15°C (60°F)28 mm (1.1 inches)84%very high
August Weather16°C (61°F)26 mm (1.0 inches)77%very high
September Weather14°C (58°F)87 mm (3.4 inches)76%high
October Weather11°C (53°F)133 mm (5.2 inches)88%moderate
November Weather9°C (48°F)189 mm (7.4 inches)87%low
December Weather7°C (44°F)177 mm (7.0 inches)87%low

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