Little Armstrong Bay Swell ForecastAustraliaWAPerthLittle Armstrong Bay1-Day3-Day5-Day Graph Plots Open in Graphs Swell Height and Direction Forecast NOAA WaveWatch III Swell Period Forecast NOAA WaveWatch IIILittle Armstrong Bay swell forecast issued yesterday at 9:59 pm. Next forecast at approx. 9:59 pm.Get WillyWeather+ to remove ads