Swan Island Rainfall Forecast

Today 23 Sep
50%< 1mm
Thu 24 Sep
25%< 1mm
Fri 25 Sep
10%< 1mm
Sat 26 Sep
15%< 1mm
Sun 27 Sep
70%1–5mm
Mon 28 Sep
40%< 1mm
Tue 29 Sep
15%< 1mm

Swan Island Rainfall Statistics View More

September Rainfall

Williamtown RAAF Base (18km)

Total Rainfall 2026
616.8mm
Daily Average 2026
2.3mm
Wettest Day 29 May, 2026
69.4mm
Wet Days 2026
120/266 (45%)
Total Rainfall August
41.8mm
Daily Average August
1.3mm
Wettest Day 26 August, 2026
13.4mm
Wet Days August
17/31 (55%)
Total Rainfall September
14.2mm
Daily Average September
0.6mm
Wettest Day 22 September, 2026
12.8mm
Wet Days September
6/23 (26%)

Climate (2021–2025)

Williamtown RAAF Base (18km)

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Annual Average 2021–2025
1357.5mm
Monthly Average 2021–2026
103.8mm
Daily Average 2021–2026
3.4mm
Wettest Day 23 May, 2025
149mm

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