Seaside Heights weather in December 2025

Expect daytime maximum temperatures of 7°C in Seaside Heights in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 11 days with some rainfall and typically 100 mm of rainfall in the month.

• 7
  7°C max day temperature
• 5
  5 hours of sunshine per day
• 11
  11 days with some rainfall
• -2
  -2°C min night temperature
• 9
  9 hours of daylight per day
• 0
  No heat & humidity
• 100
  100 mm of monthly rainfall
• 2
  2 (Low) UV index
• 8
  8°C sea temperature

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Seaside Heights by month

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The December weather guide for New Jersey (Seaside Heights) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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Seaside Heights December sunrise & sunset times

Browse the sunrise and sunset times for Seaside Heights in December 2025. Select a month to view Seaside Heights sunrise and sunset times for the next 12 months.

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