Boston Weather Forecast
- 12
- 18
Partly cloudy
- 11
- 20
Partly cloudy
- 11
- 20
Partly cloudy
- 11
- 21
Partly cloudy
- 12
- 20
Shower or two
- 11
- 18
Shower or two
- 11
- 18
Shower or two
Today 19 May Port Lincoln
Partly cloudy. Slight chance of a shower, becoming less likely this morning. Light winds becoming southwesterly 15 to 25 km/h in the morning then becoming light in the evening.
Spencer Gulf Coastal Waters
- Wind
- Westerly 15 to 20 knots turning southwesterly during the morning.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres during the morning.
- 1st Swell
- South to southwesterly below 1 metre, increasing to 1 to 1.5 metres south of Port Neill to Port Victoria.
- Weather
- Partly cloudy. 50% chance of showers.
- Weather Situation
- A ridge of high pressure lies across SA. A cold front clipped the southeast this morning, followed by a high pressure system which becomes dominant. The high is expected to move into the Tasman Sea by Friday as a cold front moves across the Bight.
Boston Temperature Statistics View More
May Temperature
Port Lincoln Airport (6km)
Lowest 18 May, 2026
8.6 °CAverage May
15.4 °CHighest 1 May, 2026
30.6 °C
Climate (2021–Present)
Port Lincoln Airport (6km)
Average Low 2021–2026
11.5 °CAverage 2021–2026
15.8 °CAverage High 2021–2026
21.3 °C