Guillotine Beach Weather Forecast
- 14
- 23
Showers
- 11
- 19
Shower or two
- 10
- 19
Showers easing
- 10
- 20
Showers
- 12
- 21
Showers
- 11
- 21
Shower or two
- 9
- 21
Mostly sunny
Today 13 May South West
Cloudy. High chance of showers in the southwest, medium chance elsewhere. The chance of a thunderstorm in the southwest. Winds northwesterly 25 to 35 km/h tending westerly 20 to 30 km/h in the late afternoon then becoming light in the evening.
Leeuwin Coastal Waters
Cape Naturaliste to Walpole- Wind
- West to northwesterly 20 to 25 knots, reaching up to 30 knots in the early afternoon. Winds turning southwesterly 15 to 20 knots in the late afternoon.
- Seas
- 2 to 2.5 metres, decreasing to 1 to 1.5 metres by early evening.
- 1st Swell
- Westerly 3 metres inshore, increasing to 4 metres offshore.
- Weather
- Partly cloudy. 80% chance of showers. The chance of a thunderstorm.
- Weather Situation
- A ridge over eastern and central WA is slowly weakening. A weak cold front will move across the South West Capes later Wednesday afternoon and then the remainder of the South West Land Division into the evening and Thursday. Further weak cold fronts will brush past the south coast on Thursday night into Friday and again on Saturday. A new ridge will extend over central WA later Friday and into the weekend.
Guillotine Beach Temperature Statistics View More
May Temperature
Cape Naturaliste (32km)
Lowest 5 May, 2026
9.3 °CAverage May
16.1 °CHighest 11 May, 2026
22.7 °C
Climate (2021–Present)
Cape Naturaliste (32km)
Average Low 2021–2026
13.3 °CAverage 2021–2026
17.2 °CAverage High 2021–2026
22.7 °C