Portsmith Weather Forecast
- 22
- 30
Possible shower
- 20
- 31
Mostly sunny
- 21
- 31
Mostly sunny
- 21
- 31
Partly cloudy
- 21
- 31
Possible shower
- 21
- 31
Partly cloudy
- 19
- 30
Partly cloudy
Today 19 Sep Cairns
Partly cloudy. Medium chance of showers, most likely in the morning. Winds southeasterly 20 to 30 km/h becoming light in the evening.
Portsmith Temperature Statistics View More
September Temperature
Cairns Airport (8km)
Lowest 12 September, 2025
16.9 °CAverage September
23.9 °CHighest 5 September, 2025
31.4 °C
Climate (2020–Present)
Cairns Airport (8km)
Average Low 2020–2025
21.8 °CAverage 2020–2025
25.2 °CAverage High 2020–2025
30 °C