Heron Island has a subtropical climate with prevailing southeast trade winds and 1 to 3m swells from the SE-E. Winds are more variable during the summer months with frequent northerlies. The majority of the rain falls from December – June while the winter and spring months are relatively dry.

Mean summer (Dec–Mar) temperature range: 23.0°C overnight – 29.0°C during the day.
Mean winter (Jun–Aug) temperature range: 16.5°C overnight – 22.5°C during the day.



There are two daily tide cycles with a maximum range of approximately 3 metres. Subtract 31 minutes from Gladstone tide times for Heron Island.