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December Weather in Bayside, United States

Last updated: June 24, 2025

In December, the average temperature in Bayside, United States hovers around 7°C (45°F). Expect nightly chills, with minimum temperatures dipping to 0°C (32°F), while daytime highs can reach a pleasant 18°C (64°F). Be prepared for 165 mm (6.5 in) of precipitation spread across 13 days, contributing to the region's average humidity of 86%. Ideal for cozy adventures, don't forget your umbrella!

December Temperature in Bayside

In December in Bayside, the average temperature is 7°C (45°F), with maximums reaching 18°C (64°F) and minimums dipping as low as 0°C (32°F). Travelers should prepare for a mild climate with potential chilly evenings, making it a great time for outdoor exploration.

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

The chart illustrates December temperature patterns in Bayside, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayside, December typically has an average temperature of 7°C (45°F), with highs reaching up to 18°C (64°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec464546495256596159544945
Data source: Temperature data for Bayside 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 Bayside

In Bayside in December, the precipitation amount is 165 mm (6.5 in) spread over 13 days.

December Precipitation Trends in Bayside

The chart displays monthly precipitation patterns in Bayside, 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 Bayside, December typically receives around 165 mm (6.5 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec2192121761086422652962133165
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Bayside

In Bayside in December, humidity is 86%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and necessitating cozy layers to stay warm while navigating the moist air.

December Average Humidity in Bayside

This chart illustrates the average monthly humidity levels in Bayside, 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 Bayside is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%85%82%81%79%70%60%62%72%87%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Bayside

In Bayside 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 Bayside, you can visit Hourly UV Index in Bayside.

Maximum UV Index Levels in Bayside for December

The chart shows the monthly maximum UV Index (UVI) for Bayside 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 Bayside typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478101110108642
Data source: Bayside 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 Bayside Compares to Other Months

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

This table compares monthly weather conditions in Bayside, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)219 mm (8.6 inches)86%moderate
February Weather7°C (45°F)212 mm (8.3 inches)85%moderate
March Weather8°C (46°F)176 mm (6.9 inches)85%high
April Weather9°C (49°F)108 mm (4.2 inches)82%very high
May Weather11°C (52°F)64 mm (2.5 inches)81%very high
June Weather14°C (57°F)22 mm (0.9 inches)79%extreme
July Weather15°C (59°F)6 mm (0.2 inches)70%very high
August Weather16°C (61°F)5 mm (0.2 inches)60%very high
September Weather15°C (59°F)29 mm (1.1 inches)62%very high
October Weather12°C (54°F)62 mm (2.4 inches)72%high
November Weather10°C (49°F)133 mm (5.2 inches)87%moderate
December Weather7°C (45°F)165 mm (6.5 inches)86%low

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