Port Lincoln weather in September
Temperature, sea and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Poor
Best time to visit: January – March
What is the weather like in Port Lincoln in September?
In September, Port Lincoln is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 14.7 °C – swimming is only for the hardy. The sun shines for around 7 hours a day. Rain falls on about 7 days, adding up to 40 mm. All in all, September is not an ideal month for a holiday in Port Lincoln.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 22 | 28 | 34 |
| Day | 15° | 17° | 19° |
| Night | 10° | 11° | 12° |
| Sea | 14° | 15° | 16° |
| Sun | 6 h | 7 h | 8 h |
| Rain days | 9 | 7 | 6 |
More details for September
- Daylight
- 11 h 50 min06:27 – 18:17
- UV index
- 6 · highclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 27 km/haverage daily peakAll months
- Cloud cover
- 51 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+9:30Australia/Adelaide
How the score comes together
- Temperatureweight 35 %0 %
- Seaweight 25 %0 %
- Sunshineweight 20 %63 %
- Few rainy daysweight 20 %76 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Sun, sea & sand”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
Port Lincoln in September: quick answers
Is Port Lincoln hot in September?
No. In September, Port Lincoln is mild: daytime highs average 17 °C and nights drop to about 11 °C.
Can you swim in Port Lincoln in September?
Only if you don't mind cold water: in September the sea averages just 14.7 °C. Comfortable swimming is possible in February.
Does it rain much in Port Lincoln in September?
Rain falls on about 7 days, adding up to 40 mm.
Port Lincoln month by month
The whole year in Port LincolnAll destinations: AustraliaWhere to go in SeptemberSea temperature in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences