Foster Islands Rainfall Forecast

Today 18 Sep
35%< 1mm
Fri 19 Sep
90%5–10mm
Sat 20 Sep
85%1–5mm
Sun 21 Sep
65%1–5mm
Mon 22 Sep
50%< 2mm
Tue 23 Sep
15%< 1mm
Wed 24 Sep
15%< 1mm

Foster Islands Rainfall Statistics View More

September Rainfall

Swan Island (12km)

Total Rainfall 2025
296.8mm
Daily Average 2025
1.2mm
Wettest Day 24 May, 2025
26.2mm
Wet Days 2025
99/261 (38%)
Total Rainfall August
44.4mm
Daily Average August
1.4mm
Wettest Day 30 August, 2025
18.6mm
Wet Days August
16/31 (52%)
Total Rainfall September
24.6mm
Daily Average September
1.5mm
Wettest Day 4 September, 2025
10.2mm
Wet Days September
6/18 (33%)

Climate (2010–Present)

Swan Island (12km)

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Annual Average 2020–2024
534.8mm
Monthly Average 2020–2025
44mm
Daily Average 2020–2025
1.5mm
Wettest Day 4 January, 2021
45.8mm

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