Climate Chart of Sydney, Australia

Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023

Climate overview

Temperature

The monthly mean temperature is highest in January, at 22.6 °C, and lowest in July, at 12.1 °C. These values describe averages over each month, not typical afternoon highs, so they are best read as a guide to the broad temperature pattern rather than a forecast of daytime conditions. The unweighted mean of the monthly means is 17.6 °C; it summarizes the calendar-month averages without weighting them by the number of days in each month.

Rain

Mean daily rainfall reaches its highest monthly average in March, at 4.71 mm/day, and its lowest in September, at 1.46 mm/day. The figures are daily averages for those months, not monthly rainfall totals, and a lower average does not guarantee dry days or show how often rain occurs. Across the monthly averages, the unweighted mean daily amount is 2.53 mm/day.

Sunshine

Average daily sunshine is highest in December, at 11.22 hours/day, and lowest in June, at 7.60 hours/day. The unweighted mean across the monthly averages is 9.53 hours/day. These durations can help with broad outdoor-scheduling expectations, but sunshine hours are not the same as day length and do not guarantee clear skies on a particular date.

Best Travel Time Guide for Sydney, Australia: Ideal Seasons and Weather Insights

For visitors prioritising cooler monthly mean conditions, July is the relevant option, with a mean temperature of 12.1 °C; this is not a measure of daytime highs, so check forecasts when planning specific outdoor activities. For lower average daily rainfall, consider September, when the mean is 1.46 mm/day. That average does not promise rain-free days or indicate rain frequency, so retain flexible plans and bring suitable rain protection. Visitors prioritising sunshine duration may find December useful to consider, with mean daily sunshine of 11.22 hours/day; this is a duration average, not a guarantee of clear weather or a measure of daylight length. Rain preparation is particularly relevant when considering March, which has the highest mean daily rainfall at 4.71 mm/day. These are separate criteria rather than a single best-time ranking, and day-to-day conditions can differ from the monthly averages.

Climate Data Overview for Sydney, Australia

Explore the comprehensive climate data for Sydney, Australia. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.

• See also climate change in Sydney
• Explore the climate in Australia