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 35-50% chance of exceeding median rainfall for summer, December 2018 to February 2019 for the South West Land Division (SWLD). Predictive skill is moderate to good (55-75% consistent).

Temperature outlooks for summer, December 2018 to February 2019, from the Bureau indicate 60-80% chance of above average day-time maxima for the SWLD away from the coasts. Skill is moderate to good at 55-75% consistent. Minimum temperature outlooks indicate 60-75% chance of above average night-time minima for most of the SWLD except the northwestern areas with 50-60% chance, with skill mostly moderate to good at 55-75% consistent.

Rainfall outlook for summer, December 2018 to February 2019 for Western Australia from the Bureau of Meteorology, indicating a 35-20% chance of exceeding median rainfall
Rainfall outlook for summer, December 2018 to February 2019 for Western Australia from the Bureau of Meteorology.
Percent Consistent skill of the Bureau of Meteorology’s outlook for summer, December to February rainfall, indicating a 55 to 75 % consistent skill over the SWLD.
Percent Consistent skill of the Bureau of Meteorology’s outlook for summer, December to February rainfall

Seasons