Mount Isa Weather in September

Mount Isa in September sees very high temperatures, with highs around 33°C (91°F) and overnight lows of 16°C (61°F). With just 6.8 mm (0.3 in) of rainfall on average, rain is rarely an issue.

Rainfall in Mount Isa in September

Typically, you can expect about 2 days of rain this month, with 6.8 mm (0.3 in) on average. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.

Temperature in Mount Isa in September

Mount Isa in September is worth a visit. The temperature is excellent, with 33°C (91°F) during the day and 16°C (61°F) at night. If you're spending a lot of time outdoors, it helps to plan around the warmer part of the day. Nights cool down to 16°C (61°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. May, June, July and August typically offer the best weather for Mount Isa.