Seasonal Climate Outlook

Bureau of Meteorology seasonal climate outlook

The Bureau of Meteorology's climate forecast system for monthly and seasonal climate outlooks is called the Australian Community Climate Earth-System Simulator – Seasonal (ACCESS–S). It is a dynamical (physics-based) forecast modelling system and is a collaboration between the Bureau of Meteorology and the UK Meteorological Office.

The Bureau of Meteorology’s current seasonal outlook is indicating a 30-50% chance of exceeding median rainfall for October to December for the SWLD. Predictive skill is mostly poor to moderate (45-65% consistent).

Temperature outlooks for October to December 2018, from the Bureau indicate greater than 80% chance of above average day-time maxima for the SWLD. Skill is moderate to good at 65-75% consistent. Minimum temperature outlooks indicate greater than 75% chance of above average night-time minima for the SWLD, with skill poor to good at 50-75% consistent.

Rainfall outlook for October to December 2018 for Western Australia from the Bureau of Meteorology, indicating a 30-50% chance of exceeding median rainfall.
Rainfall outlook for October to December 2018 for Western Australia from the Bureau of Meteorology
Percent Consistent skill of the Bureau of Meteorology’s outlook for October to December rainfall, indicating a 45 to 65 % consistent skill over the SWLD.
Percent consistent skill of the Bureau of Meteorology’s outlook for October to December rainfall