December Weather in Saint Marys

Last updated: March 2, 2024

The weather in Saint Marys, Australia, during December is characterized by an average temperature of 15°C (59°F). Highs can soar to 23°C (74°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Saint Marys throughout December hovers around 76%.

9°C (49°F)

Minimum temperature

15°C (59°F)

Average temperature

23°C (74°F)

Maximum temperature

76%

Humidity

Precipitation and Sunshine hours

In December, Saint Marys averages 95 mm (3.7 inches) of rainfall, typically over the course of 10 rainy days. The month enjoys an average of 15 hours 6 minutes of daylight, with the sun shining for approximately 11 hours 38 minutes each day. Additionally, there is a 47% probability of sunny days during this period.

95 mm (3.7 inches)

Precipitation

10 rainy days

Rainy days

11 hours 38 minutes

Sunshine hours

47%

Chance of sun

UV Index

In December, the UV Index in Saint Marys reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 2 5 8 10 12 13 12 10 7 5 2 1
Exposure Low Moderate VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 15 min 10 min 15 min 25 min 30 min 45 min

Compare Saint Marys's Climate with Cities Worldwide