Climate Overview
The climate in Groote Eylandt Airport is hot. The average annual temperature is 27°C and approximately 969mm of precipitation falls per year. February is the wettest month, receiving around 235mm of rainfall. Groote Eylandt Airport 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: December, November, January. The coldest months are July, August, June, when temperatures can drop to 22°C.
Temperature
Groote Eylandt Airport has relatively stable temperatures year-round, staying within a 9°C range. The warmest month is December, when average highs reach 31°C and the mean temperature sits around 29°C. July 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 3°C between highs and lows. The sharpest temperature change occurs between September and October, with a 2°C shift in average temperatures.
Precipitation
Groote Eylandt Airport is a moderately rainy area, receiving approximately 969mm of precipitation annually, which averages out to around 81mm per month. The wettest month is February, averaging 235mm of rainfall. January and March also tend to see above-average precipitation. The driest month is August, with just 1mm. That's 234mm 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.
Wind
Groote Eylandt 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 May, averaging 25km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in October, with average winds dropping to 19km/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.
Seasons
89 days until Winter
It is currently autumn in Groote Eylandt Airport, which began on March 20, 2026. Groote Eylandt Airport 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 December at around 31°C, while the coldest stretch bottoms out in July near 22°C. Winter is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 24 to 31°C. Precipitation is minimal, with only around 38mm for the entire season. Winds are moderate at around 19km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 27 to 31°C. Rainfall is heavy, totalling around 623mm across the season with a monthly average of 208mm. Winds are moderate at around 21km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 25 to 30°C. Rainfall is heavy, totalling around 302mm across the season with a monthly average of 101mm. Winds are moderate at around 22km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 22 to 26°C. Precipitation is minimal, with only around 5mm for the entire season. Winds are moderate at around 23km/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 Groote Eylandt Airport is during June, July and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 24°C with modest rainfall averaging 2mm per month. By contrast, December can be uncomfortably hot with temperatures reaching 31°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Groote Eylandt 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.
