Cape Portland Rainfall Forecast

Today 15 Aug
90%1–5mm
Sat 16 Aug
45%< 1mm
Sun 17 Aug
15%< 1mm
Mon 18 Aug
10%< 1mm
Tue 19 Aug
10%< 1mm
Wed 20 Aug
10%< 1mm
Thu 21 Aug
15%< 1mm

Cape Portland Rainfall Statistics View More

August Rainfall

Swan Island (12km)

Total Rainfall 2025
237.6mm
Daily Average 2025
1.1mm
Wettest Day 24 May, 2025
26.2mm
Wet Days 2025
84/227 (37%)
Total Rainfall July
50.8mm
Daily Average July
1.6mm
Wettest Day 26 July, 2025
15mm
Wet Days July
20/31 (65%)
Total Rainfall August
9.8mm
Daily Average August
0.8mm
Wettest Day 5 August, 2025
2.8mm
Wet Days August
7/15 (47%)

Climate (2010–Present)

Swan Island (12km)

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Annual Average 2020–2024
534.8mm
Monthly Average 2020–2025
43.3mm
Daily Average 2020–2025
1.4mm
Wettest Day 4 January, 2021
45.8mm

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