Climate Insights for Port Pirie

The climate in Port Pirie is temperate. The average annual temperature is 18°C and approximately 306mm of precipitation falls per year. November is the wettest month, receiving around 36mm of rainfall. Port Pirie 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, June, August, when temperatures can drop to 8°C.

Temperatures in Port Pirie vary considerably across the year, with a 22°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 30°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 8°C and an average of 11°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

Port Pirie is a quite dry location, receiving approximately 306mm of precipitation annually, which averages out to around 26mm per month. The wettest month is November, averaging 36mm of rainfall. October and June also tend to see above-average precipitation. The driest month is February, with just 7mm. That's 29mm less than November, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Port Pirie is mildly breezy, with an average annual wind speed of 14km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 15km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 12km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months.

It is currently winter in Port Pirie, which began on June 21, 2026. Port Pirie 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 30°C, while the coldest stretch bottoms out in July near 8°C. Spring is next, beginning on September 23, 2026 (7 days from now).

The best time to visit Port Pirie is during January, February, March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 23mm per month. By contrast, July can be quite cold with temperatures dropping to 8°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Port Pirie 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.