Swan Island Rainfall Forecast

Today 30 May
10%< 1mm
Sun 31 May
25%< 1mm
Mon 1 Jun
5%< 1mm
Tue 2 Jun
75%1–5mm
Wed 3 Jun
15%< 1mm
Thu 4 Jun
10%< 1mm
Fri 5 Jun
35%< 1mm

Swan Island Rainfall Statistics View More

May Rainfall

Williamtown RAAF Base (km)

Total Rainfall 2026
436.6mm
Daily Average 2026
2.9mm
Wettest Day 29 May, 2026
69.4mm
Wet Days 2026
66/150 (44%)
Total Rainfall April
24.2mm
Daily Average April
0.8mm
Wettest Day 5 April, 2026
15mm
Wet Days April
9/30 (30%)
Total Rainfall May
188mm
Daily Average May
6.5mm
Wettest Day 29 May, 2026
69.4mm
Wet Days May
20/30 (67%)

Climate (2010–Present)

Williamtown RAAF Base (km)

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Annual Average 2021–2025
1357.5mm
Monthly Average 2021–2026
102.7mm
Daily Average 2021–2026
3.4mm
Wettest Day 23 May, 2025
149mm

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