Climate Insights for Appin

The climate in Appin is temperate. The average annual temperature is 18°C and approximately 834mm of precipitation falls per year. Appin receives a notable amount of rainfall throughout the year, including during its driest month. Appin 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, December. The coldest months are July, August, June, when temperatures can drop to 8°C.

Appin sees moderate temperature variation throughout the year, ranging from 8°C to 28°C. The warmest month is January, when average highs reach 28°C and the mean temperature sits around 23°C. July is the coolest month, with minimum temperatures around 8°C and an average of 12°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

Appin is a moderately rainy area, receiving approximately 834mm of precipitation annually, which averages out to around 69mm per month. The wettest month is March, averaging 132mm of rainfall. February and June also tend to see above-average precipitation. The driest month is May, with just 41mm. That's 90mm 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.

Appin is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently winter in Appin, which began on June 21, 2026. Appin 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 January at around 28°C, while the coldest stretch bottoms out in July near 8°C. Spring is next, beginning on September 23, 2026 — 93 days from now.

The best time to visit Appin is during January, April, May, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 60mm per month. By contrast, July can be quite cold with temperatures dropping to 8°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Appin 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.