Climate Insights for St. George's

The climate in St. George's is warm and mild. The average annual temperature is 22°C and approximately 1,407 mm of precipitation falls per year. St. George's receives a notable amount of rainfall throughout the year, including during its driest month. St. George's 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, February, January, when temperatures can drop to 17°C.The climate in St. George's is warm and mild. The average annual temperature is 72°F and approximately 55.4 in of precipitation falls per year. St. George's receives a notable amount of rainfall throughout the year, including during its driest month. St. George's 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, February, January, when temperatures can drop to 63°F.

St. George's 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 May and June, with a 3°C shift in average temperatures.St. George's sees moderate temperature variation throughout the year, ranging from 63°F to 82°F. The warmest month is August, when average highs reach 82°F and the mean temperature sits around 81°F. March is the coolest month, with minimum temperatures around 63°F and an average of 65°F. Daily temperature variation is modest, with an average difference of 3°F between highs and lows. The sharpest temperature change occurs between May and June, with a 5°F shift in average temperatures.

St. George's is a fairly wet location, receiving approximately 1,407 mm of precipitation annually, which averages out to around 117 mm per month. The wettest month is September, averaging 148 mm of rainfall. October and January also tend to see above-average precipitation. The driest month is April, with just 79 mm. That's 69 mm less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.St. George's is a fairly wet location, receiving approximately 55.4 in of precipitation annually, which averages out to around 4.6 in per month. The wettest month is September, averaging 5.8 in of rainfall. October and January also tend to see above-average precipitation. The driest month is April, with just 3.1 in. That's 2.7 in less than September, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around.

St. George's is moderately windy, with an average annual wind speed of 25km/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 32km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 14km/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 30km/h in winter, 26km/h in spring, 19km/h in summer, 25km/h in autumn.St. George's is very windy, with an average annual wind speed of 16mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is January, averaging 20mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 11mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9mph 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 19mph in winter, 16mph in spring, 12mph in summer, 16mph in autumn.

The best time to visit St. George's is during April and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 89 mm 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 best time to visit St. George's is during April and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 67°F with modest rainfall averaging 3.5 in per month. By contrast, August can be uncomfortably hot with highs reaching 82°F, while March is the coldest period with lows dropping to 63°F. 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 St. George's 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.The table below shows monthly climate averages for St. George's based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.