Mount Gambier weather in December 2025

Expect 22°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Mount Gambier in December. Check more long-term weather averages for Mount Gambier in December before you book your next holiday to South Australia in 2025/2026.

  • 22°C maximum daytime temperature in December in Mount Gambier22
    22°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in December in Mount Gambier8
    8 days with some rainfall
  • 10°C minimum night-time temperature in December in Mount Gambier10
    10°C min night temperature
  • 15 hours of daylight per day in December in Mount Gambier15
    15 hours of daylight per day
  • No heat & humidity in December in Mount Gambier0
    No heat & humidity
  • 40 mm monthly rainfall in December in Mount Gambier40
    40 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in December in Mount Gambier11
    11 (Extreme) UV index

More about Mount Gambier

Mount Gambier by month

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

Recommended for South Australia

Travelbag sale: up to 40% off select hotels & resorts

  • Save up to 40% on holidays to select hotels & resorts
  • Book beach holidays, city breaks & tours in 2025/2026
  • Destinations across Europe, Americas, Asia, Africa & beyond
Go to Travelbag deal >>

Expires at 23:59 on Friday 31st Jan 2025 · View all Travelbag offers

TravelbagHoliday deal finder

The December weather guide for South Australia (Mount Gambier) 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 Australia

How hot is it in Mount Gambier in December?

Daytime temperatures usually reach 22°C in Mount Gambier in December, falling to 10°C at night.

How sunny is it in Mount Gambier in December?

There are normally 8 hours of bright sunshine each day in Mount Gambier in December - that's 54% of daylight hours.

Does it rain in Mount Gambier in December?

There are usually 8 days with some rain in Mount Gambier in December and the average monthly rainfall is 40mm.

Mount Gambier December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:39 19:13
Tuesday, 16th December 2025 04:39 19:26
Wednesday, 31st December 2025 04:47 19:32

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^