Portland Offshore Rainfall Forecast

Today 30 Oct
50%< 1mm
Fri 31 Oct
30%< 1mm
Sat 1 Nov
5%< 1mm
Sun 2 Nov
70%1–5mm
Mon 3 Nov
70%1–10mm
Tue 4 Nov
75%5–10mm
Wed 5 Nov
70%1–5mm

Portland Offshore Rainfall Statistics View More

October Rainfall

Cape Nelson Lighthouse (9km)

Total Rainfall 2025
608.2mm
Daily Average 2025
2mm
Wettest Day 23 July, 2025
28.6mm
Wet Days 2025
155/303 (51%)
Total Rainfall September
101.8mm
Daily Average September
3.4mm
Wettest Day 30 September, 2025
25.2mm
Wet Days September
25/30 (83%)
Total Rainfall October
58.4mm
Daily Average October
2mm
Wettest Day 1 October, 2025
11mm
Wet Days October
18/30 (60%)

Climate (2010–Present)

Cape Nelson Lighthouse (9km)

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Annual Average 2020–2024
711.8mm
Monthly Average 2020–2025
61mm
Daily Average 2020–2025
2mm
Wettest Day 1 December, 2024
57mm

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