Boullanger Island Weather Forecast
- 11
- 25
Shower or two
- 10
- 21
Shower or two
- 5
- 21
Sunny
- 7
- 24
Sunny
- 9
- 25
Sunny
- 10
- 25
Mostly sunny
- 12
- 24
Showers
Today 21 May Central West
Mostly sunny. Slight chance of a shower near the coast, most likely later this evening. Near zero chance of rain elsewhere. The chance of a thunderstorm in the south. Winds west to southwesterly 15 to 25 km/h tending south to southwesterly 20 to 30 km/h in the late afternoon.
Lancelin Coastal Waters
Jurien Bay to Two Rocks- Wind
- Southerly 15 to 20 knots, reaching up to 25 knots offshore in the evening.
- Seas
- Around 1 metre, increasing to 1 to 2 metres during the afternoon.
- 1st Swell
- Southwesterly 2 to 2.5 metres.
- Weather
- Partly cloudy. 70% chance of showers. The chance of a thunderstorm.
- Weather Situation
- A ridge over southeast WA is moving east. A weak cold front is moving across the south coast today and then the Eucla on Friday. A new ridge develops over southwest WA on Friday, associated with a high pressure system expected to move across southern WA on the weekend.
Boullanger Island Temperature Statistics View More
May Temperature
Jurien Bay (2km)
Lowest 2 May, 2026
4.2 °CAverage May
16.4 °CHighest 19 May, 2026
28.4 °C
Climate (2021–Present)
Jurien Bay (2km)
Average Low 2021–2026
13.8 °CAverage 2021–2026
19.8 °CAverage High 2021–2026
25.8 °C