Hertfordshire weather in December 2026

Expect daytime maximum temperatures of 7°C in Hertfordshire, UK in December based on long-term weather averages. There are 2 hours of sunshine per day on average with 15 days with some rainfall and typically 64 mm of rainfall in the month.

  • 7°C maximum daytime temperature in December in Hertfordshire (Watford)7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 15 days with some rainfall in December in Hertfordshire (Watford)15
    15 days with some rainfall
  • 2°C minimum night-time temperature in December in Hertfordshire (Watford)2
    2°C min night temperature
  • 8 hours of daylight per day in December in Hertfordshire (Watford)8
    8 hours of daylight per day
  • No heat & humidity in December in Hertfordshire (Watford)0
    No heat & humidity
  • 64 mm monthly rainfall in December in Hertfordshire (Watford)64
    64 mm of monthly rainfall
  • No UV (maximum) index in December in Hertfordshire (Watford)0
    No UV (Maximum) Index UV index

More about Hertfordshire

Hertfordshire by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec