Grantham weather in December 2025

Expect daytime maximum temperatures of 7°C in Grantham, England 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 54 mm of rainfall in the month.

  • 7°C maximum daytime temperature in December in Grantham7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 15 days with some rainfall in December in Grantham15
    15 days with some rainfall
  • 1°C minimum night-time temperature in December in Grantham1
    1°C min night temperature
  • 8 hours of daylight per day in December in Grantham8
    8 hours of daylight per day
  • No heat & humidity in December in Grantham0
    No heat & humidity
  • 54 mm monthly rainfall in December in Grantham54
    54 mm of monthly rainfall
  • No UV (maximum) index in December in Grantham0
    No UV (Maximum) Index UV index

More about Grantham

Grantham by month

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

Recommended for England

Avis sale: up to 10% off car hire

  • Save up to 10% on car hire for select destinations
  • Book car hire in Europe, Australia, New Zealand & more
  • Travel: 1 Mar-14 Dec 2025. Black out periods apply
Go to Avis deal >>

Expires at 23:59 on Tuesday 18th Mar 2025 · View all Avis offers

AvisCar hire finder

The December weather guide for England (Grantham) 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)

Back to top

More about England

How cold is it in Grantham in December?

Daytime temperatures usually reach 7°C in Grantham in December, falling to 1°C at night.

How sunny is it in Grantham in December?

There are normally 2 hours of bright sunshine each day in Grantham in December - that's 21% of daylight hours.

Does it rain in Grantham in December?

There are usually 15 days with some rain in Grantham in December and the average monthly rainfall is 54mm.

Grantham December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:53 15:50
Tuesday, 16th December 2025 08:10 15:46
Wednesday, 31st December 2025 08:15 15:56

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^