Climate Overview
The climate in Great Harbour Cay Airport is hot. The average annual temperature is 25°C and approximately 1176mm 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, March, February, when temperatures can drop to 22°C.
Temperature
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 1°C between highs and lows.
Precipitation
Great Harbour Cay Airport is a moderately rainy area, receiving approximately 1176mm of precipitation annually, which averages out to around 98mm per month. The wettest month is September, averaging 204mm of rainfall. October and May also tend to see above-average precipitation. The driest month is March, with just 33mm. That's 171mm less than September, 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.
Wind
Great Harbour Cay Airport 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 January, averaging 7km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, 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.
Seasons
84 days until Autumn
It is currently summer in Great Harbour Cay Airport, which began on June 21, 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. Autumn is next, beginning on September 23, 2026 — 84 days from now.
Spring
Temperatures range from 22 to 26°C. Precipitation is moderate at around 241mm for the season, averaging 80mm per month. Winds are generally light, averaging 6km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 26 to 29°C. Rainfall is heavy, totalling around 303mm across the season with a monthly average of 101mm. Winds are generally light, averaging 5km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 28°C. Rainfall is heavy, totalling around 449mm across the season with a monthly average of 150mm. Winds are generally light, averaging 6km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 24°C. Precipitation is moderate at around 182mm for the season, averaging 61mm per month. Winds are generally light, averaging 7km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
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 55mm 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.
Monthly Climate Data
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.
