Climate Insights for Gros Cailloux

The climate in Gros Cailloux is warm and mild. The average annual temperature is 24°C and approximately 980mm of precipitation falls per year. February is the wettest month, receiving around 199mm of rainfall. Gros Cailloux 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: March, February, January. The coldest months are August, September, July, when temperatures can drop to 21°C.

Gros Cailloux has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is March, when average highs reach 28°C and the mean temperature sits around 27°C. August is the coolest month, with minimum temperatures around 21°C and an average of 22°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows.

Gros Cailloux is a moderately rainy area, receiving approximately 980mm of precipitation annually, which averages out to around 82mm per month. The wettest month is February, averaging 199mm of rainfall. January and March also tend to see above-average precipitation. The driest month is August, with just 22mm. That's 176mm less than February, 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.

Gros Cailloux is relatively calm, with an average annual wind speed of 6km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in February, 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 2km/h gap between the calmest and windiest months.

It is currently winter in Gros Cailloux, which began on June 21, 2026. Gros Cailloux 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 March at around 28°C, while the coldest stretch bottoms out in August near 21°C. Spring is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Gros Cailloux 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 23°C with modest rainfall averaging 34mm per month. By contrast, March 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 Gros Cailloux 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.