Climate Insights for Murchison

The climate in Murchison is warm and mild. The average annual temperature is 23°C and approximately 441mm of precipitation falls per year. February is the wettest month, receiving around 117mm of rainfall. Murchison 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: December, November, January. The coldest months are July, June, August, when temperatures can drop to 11°C.

Temperatures in Murchison vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is December, when average highs reach 32°C and the mean temperature sits around 27°C. July is the coolest month, with minimum temperatures around 11°C and an average of 18°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 3°C shift in average temperatures.

Murchison is a relatively dry area, receiving approximately 441mm of precipitation annually, which averages out to around 37mm per month. The wettest month is February, averaging 117mm of rainfall. December and January also tend to see above-average precipitation. The driest month is August, with just 3mm. That's 113mm less than February, 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.

Murchison is mildly breezy, with an average annual wind speed of 16km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 19km/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. There is moderate seasonal variation in wind speed, with a 7km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 14km/h in winter, 18km/h in spring, 17km/h in summer, 14km/h in autumn.

It is currently winter in Murchison, which began on June 21, 2026. Murchison 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 December at around 32°C, while the coldest stretch bottoms out in July near 11°C. Autumn is next, beginning on March 20, 2026 — 3 days from now.

The best time to visit Murchison is during April, May, June, July, August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 12mm per month. By contrast, December can be uncomfortably hot with temperatures reaching 32°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Murchison 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.