Climate Chart of Bruny Island, Australia

Climate overview

Temperature

Monthly mean temperatures are highest in January, at 13.1 °C, and lowest in August, at 6.6 °C. These are monthly averages, not daytime maximum temperatures, so they describe the general temperature pattern rather than the warmest conditions visitors may encounter on an individual day. Across the calendar months, the unweighted mean of the monthly mean temperatures is 9.6 °C. It summarizes the monthly averages without weighting them by the number of days in each month.

Rain

Mean daily rainfall is highest in October, at 2.96 mm/day, and lowest in January, at 1.68 mm/day. These are daily mean amounts, not monthly totals; the lower figure does not mean that every day in that month will be dry or indicate how often rain occurs. The unweighted mean across the monthly mean daily rainfall values is 2.21 mm/day. Use it as a broad summary, not as a prediction of rainfall on a particular day.

Sunshine

Mean daily sunshine duration is highest in December, at 11.13 hours/day, and lowest in June, at 5.61 hours/day. These averages can help describe the monthly pattern for outdoor planning, but sunshine duration is not the same as day length and does not guarantee clear conditions on a given day. The unweighted mean of the monthly mean daily sunshine durations is 8.40 hours/day. It summarizes the calendar-month means rather than representing a day-weighted annual average.

Snow

The highest monthly mean daily snowfall is recorded in August, at 0.25 mm/day. The unweighted mean across monthly mean daily snowfall values is 0.06 mm/day. These amounts describe averages, not the number of snowy days, snow depth or snow cover, and they do not establish skiing conditions.