Climate Insights for Wollongong

The climate in Wollongong is warm and mild. The average annual temperature is 18°C and approximately 1,333 mm of precipitation falls per year. Wollongong receives a notable amount of rainfall throughout the year, including during its driest month. Wollongong 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: January, February, March. The coldest months are July, August, June, when temperatures can drop to 13°C.The climate in Wollongong is warm and mild. The average annual temperature is 65°F and approximately 52.5 in of precipitation falls per year. Wollongong receives a notable amount of rainfall throughout the year, including during its driest month. Wollongong 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: January, February, March. The coldest months are July, August, June, when temperatures can drop to 55°F.

Wollongong has relatively stable temperatures year-round, staying within a 10°C range. January is the warmest month, though highs remain moderate at 23°C with a mean of 22°C. July is the coolest month, with minimum temperatures around 13°C and an average of 14°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between April and May, with a 2°C shift in average temperatures.Wollongong sees moderate temperature variation throughout the year, ranging from 55°F to 74°F. January is the warmest month, though highs remain moderate at 74°F with a mean of 71°F. July is the coolest month, with minimum temperatures around 55°F and an average of 58°F. Daily temperature variation is modest, with an average difference of 5°F between highs and lows. The sharpest temperature change occurs between April and May, with a 4°F shift in average temperatures.

Wollongong is a fairly wet location, receiving approximately 1,333 mm of precipitation annually, which averages out to around 111 mm per month. The wettest month is March, averaging 211 mm of rainfall. February and June also tend to see above-average precipitation. The driest month is September, with just 73 mm. That's 138 mm less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.Wollongong is a fairly wet location, receiving approximately 52.5 in of precipitation annually, which averages out to around 4.4 in per month. The wettest month is March, averaging 8.3 in of rainfall. February and June also tend to see above-average precipitation. The driest month is September, with just 2.9 in. That's 5.4 in less than March, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Wollongong is mildly breezy, with an average annual wind speed of 20km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 18km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.Wollongong is very windy, with an average annual wind speed of 12mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is June, averaging 13mph, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in April, with average winds dropping to 11mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2mph between the calmest and windiest months.

The best time to visit Wollongong is during September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 85 mm per month. By contrast, January can be uncomfortably hot with highs reaching 23°C, while July is the coldest period with lows dropping to 13°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Wollongong is during September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 65°F with modest rainfall averaging 3.3 in per month. By contrast, January can be uncomfortably hot with highs reaching 74°F, while July is the coldest period with lows dropping to 55°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Wollongong 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.The table below shows monthly climate averages for Wollongong based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.