Climate Insights for Grand Sable

The climate in Grand Sable is warm and mild. The average annual temperature is 24°C and approximately 1162mm of precipitation falls per year. January is the wettest month, receiving around 230mm of rainfall. Grand Sable is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: February, January, March. The coldest months are August, July, September, when temperatures can drop to 20°C.

Grand Sable has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is February, when average highs reach 28°C and the mean temperature sits around 26°C. August is the coolest month, with minimum temperatures around 20°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.

Grand Sable is a moderately rainy area, receiving approximately 1162mm of precipitation annually, which averages out to around 97mm per month. The wettest month is January, averaging 230mm of rainfall. February and March also tend to see above-average precipitation. The driest month is September, with just 30mm. That's 201mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Grand Sable is moderately windy, with an average annual wind speed of 26km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 30km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in March, with average winds dropping to 23km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 7km/h 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 29km/h in winter, 25km/h in spring, 24km/h in summer, 24km/h in autumn.

It is currently autumn in Grand Sable, which began on March 20, 2026. Grand Sable is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in February at around 28°C, while the coldest stretch bottoms out in August near 20°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Grand Sable is during May, June, July, August, September, October and November, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 48mm per month. By contrast, February can be uncomfortably hot with temperatures reaching 28°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Grand Sable 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.