The temperatures in Umina in December are quite cold with temperatures between 5°C and 11°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Umina. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
You can expect a few days of snow in Umina during December. It’s important to get out your snow boots and warm mittens to stay warm while you explore Umina.
Our weather forecast can give you a great sense of what weather to expect in Umina in December 2025.
If you’re planning to visit Umina in the near future, we highly recommend that you review the 14 day weather forecast for Umina before you arrive.
Temperatures
11° / 5°
Rainy Days
8
Snowy Days
5
Dry Days
19
Rainfall
141
mm
Sun Hours
11.4
Hrs