Mount Isa Weather in December

December in Mount Isa averages 38°C (100°F) during the day and 24°C (75°F) at night. Quite a bit of rainfall is typical this month, with around 66 mm (2.6 in) on average. An umbrella is a good idea.

Rainfall in Mount Isa in December

Historically, the month has about 8 days of rain, averaging 66 mm (2.6 in) in total. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Mount Isa in December

If you're visiting Mount Isa in December, expect highs of 38°C (100°F) and overnight lows around 24°C (75°F). If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. With overnight lows of 24°C (75°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Keep in mind that while these are the average temperatures, there can be days that are even hotter. It's essential to be prepared for such heat. Wearing light, breathable fabrics and protecting yourself from the sun's intensity with hats or shades can make a difference. Hydration is key, so remember to drink plenty of water. Especially if you find yourself outdoors for a longer period.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Mount Isa. Our weather planner can help you explore destinations with more pleasant weather conditions.