December Weather in Mount Isa

Last updated: March 2, 2024

The weather in Mount Isa, Australia, during December is characterized by an average temperature of 32°C (90°F). Highs can soar to 42°C (108°F), while lows may dip to 19°C (66°F). Typically, the humidity level in Mount Isa throughout December hovers around 47%.

19°C (66°F)

Minimum temperature

32°C (90°F)

Average temperature

42°C (108°F)

Maximum temperature

47%

Humidity

Precipitation and Sunshine hours

In December, Mount Isa averages 20 mm (0.8 inches) of rainfall, typically over the course of 3 rainy days. The month enjoys an average of 13 hours 21 minutes of daylight, with the sun shining for approximately 11 hours 1 minutes each day. Additionally, there is a 62% probability of sunny days during this period.

20 mm (0.8 inches)

Precipitation

3 rainy days

Rainy days

11 hours 1 minutes

Sunshine hours

62%

Chance of sun

UV Index

In December, the UV Index in Mount Isa reaches a maximum of 16, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 3 6 10 14 16 16 14 10 6 3 1 1
Exposure Low Moderate High VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 25 min 30 min 45 min

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