St Mary Weather & Climate: Best Time to Visit

The temperature in St Mary remains steady throughout the year, providing a consistently very warm climate. Average daytime temperatures reach a very warm 32°C (90°F) in August. In January, the coolest month of the year, temperatures drop to a comfortable 28°C (82°F).

At night, temperatures range from around 25°C (77°F) in August to 22°C (72°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

St Mary has a relatively rainy climate with high precipitation levels, averaging 1050 mm (41 in) of rainfall annually. St Mary can be quite wet during October, receiving approximately 143 mm (5.6 in) of precipitation over 16 rainy days.

In contrast, during the driest month (February), you will experience much drier conditions, with 55 mm (2.2 in) of precipitation spread across 6 rainy days. For more details, please visit our St Mary Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Despite minor fluctuations, St Mary enjoys a fairly consistent amount of sunshine throughout the year. In July, you can expect approximately 8.8 hours of daily sunshine, while even in October, St Mary still receives about 7.5 hours.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in St Mary.

The city experiences its highest humidity in October, reaching 81%. In July, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year