Climate Insights for Saint George

The climate in Saint George is warm and mild. The average annual temperature is 22°C and approximately 1345mm of precipitation falls per year. Saint George receives a notable amount of rainfall throughout the year, including during its driest month. Saint George is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, September, July. The coldest months are March, January, February, when temperatures can drop to 17°C.

Saint George sees moderate temperature variation throughout the year, ranging from 17°C to 28°C. The warmest month is August, when average highs reach 28°C and the mean temperature sits around 27°C. March is the coolest month, with minimum temperatures around 17°C and an average of 18°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between October and November, with a 2°C shift in average temperatures.

Saint George is a fairly wet location, receiving approximately 1345mm of precipitation annually, which averages out to around 112mm per month. The wettest month is January, averaging 148mm of rainfall. September and March also tend to see above-average precipitation. The driest month is April, with just 65mm. That's 83mm less than January, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

Saint George is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8km/h in winter, 7km/h in spring, 5km/h in summer, 7km/h in autumn.

It is currently summer in Saint George, which began on June 21, 2026. Saint George is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 28°C, while the coldest stretch bottoms out in March near 17°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Saint George is during April and May, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 80mm per month. By contrast, August can be uncomfortably hot with highs reaching 28°C, while March is the coldest period with lows dropping to 17°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Saint George based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.