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December Weather in Harwich, United Kingdom

Last updated: August 27, 2025

In December, the average temperature in Harwich, United Kingdom hovers around 7°C (44°F), with lows dipping to 0°C (32°F) and highs reaching up to 13°C (56°F). Expect significant precipitation, with about 101 mm (4.0 in) falling over 16 days, contributing to a high humidity level of 92%.

December Temperature in Harwich

In December in Harwich, the average temperature is 7°C (44°F). Maximum temperatures can reach 13°C (56°F), while minimums may drop to as low as 0°C (32°F). Travelers should prepare for chilly weather and pack accordingly to enjoy their visit comfortably.

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

The chart illustrates December temperature patterns in Harwich, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harwich, December typically has an average temperature of 7°C (44°F), with highs reaching up to 13°C (56°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec414345485461646460554844
Data source: Temperature data for Harwich 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 Harwich

In Harwich in December, the total precipitation amount is 101 mm (4.0 in) spread over 16 days.

December Precipitation Trends in Harwich

The chart displays monthly precipitation patterns in Harwich, 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 Harwich, December typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec5964562557646675579255101
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Harwich

In Harwich in December, humidity is 92%. With an average temperature of 7°C (44°F), this humidity feels like an oppressive blanket, making outdoor activities uncomfortable and travel cumbersome as the dampness seeps into your clothes and chills your bones.

December Average Humidity in Harwich

This chart illustrates the average monthly humidity levels in Harwich, 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 Harwich is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Harwich

In Harwich 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 Harwich.

Maximum UV Index Levels in Harwich for December

The chart shows the monthly maximum UV Index (UVI) for Harwich 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 Harwich typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Harwich 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 Harwich Compares to Other Months

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

This table compares monthly weather conditions in Harwich, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)59 mm (2.3 inches)91%low
February Weather6°C (43°F)64 mm (2.5 inches)89%low
March Weather7°C (45°F)56 mm (2.2 inches)86%moderate
April Weather9°C (48°F)25 mm (1.0 inches)85%moderate
May Weather12°C (54°F)57 mm (2.2 inches)82%high
June Weather16°C (61°F)64 mm (2.5 inches)81%very high
July Weather18°C (64°F)66 mm (2.6 inches)76%very high
August Weather18°C (65°F)75 mm (2.9 inches)73%high
September Weather16°C (61°F)57 mm (2.3 inches)80%moderate
October Weather13°C (55°F)92 mm (3.6 inches)89%moderate
November Weather9°C (48°F)55 mm (2.2 inches)92%low
December Weather7°C (44°F)101 mm (4.0 inches)92%low

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