Climate Insights for Great Harbour Cay Airport

The climate in Great Harbour Cay Airport is hot. The average annual temperature is 25°C and approximately 1091mm of precipitation falls per year. Great Harbour Cay Airport receives a notable amount of rainfall throughout the year, including during its driest month. Great Harbour Cay Airport is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, March, when temperatures can drop to 22°C.

Great Harbour Cay Airport has relatively stable temperatures year-round, staying within a 7°C range. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 28°C. January is the coolest month, with minimum temperatures around 22°C and an average of 23°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows.

Great Harbour Cay Airport is a moderately rainy area, receiving approximately 1091mm of precipitation annually, which averages out to around 91mm per month. The wettest month is September, averaging 190mm of rainfall. October and August also tend to see above-average precipitation. The driest month is February, with just 47mm. That's 142mm less than September, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Great Harbour Cay Airport is moderately windy, with an average annual wind speed of 21km/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 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/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 23km/h in winter, 21km/h in spring, 18km/h in summer, 20km/h in autumn.

It is currently autumn in Great Harbour Cay Airport, which began on September 23, 2026. Great Harbour Cay Airport 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 29°C, while the coldest stretch bottoms out in January near 22°C. Winter is next, beginning on December 21, 2026 (87 days from now).

The best time to visit Great Harbour Cay Airport is during January, February, March, April and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 58mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 29°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 Great Harbour Cay Airport 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.