Portland Bay Rainfall Forecast

Today 22 Aug
60%< 2mm
Sat 23 Aug
45%< 1mm
Sun 24 Aug
10%< 1mm
Mon 25 Aug
60%< 2mm
Tue 26 Aug
95%10–15mm
Wed 27 Aug
90%5–15mm
Thu 28 Aug
85%5–15mm

Portland Bay Rainfall Statistics View More

August Rainfall

Portland Airport (25km)

Total Rainfall 2025
492.2mm
Daily Average 2025
2.1mm
Wettest Day 8 June, 2025
30.8mm
Wet Days 2025
128/234 (55%)
Total Rainfall July
182mm
Daily Average July
5.9mm
Wettest Day 23 July, 2025
23.8mm
Wet Days July
26/31 (84%)
Total Rainfall August
46.8mm
Daily Average August
2.2mm
Wettest Day 16 August, 2025
14.6mm
Wet Days August
15/22 (68%)

Climate (2010–Present)

Portland Airport (25km)

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Annual Average 2020–2024
837mm
Monthly Average 2020–2025
69.9mm
Daily Average 2020–2025
2.4mm
Wettest Day 1 December, 2024
58.8mm

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