Portland Bay Rainfall Forecast

Today 13 Sep
50%< 1mm
Mon 14 Sep
90%1–5mm
Tue 15 Sep
55%< 1mm
Wed 16 Sep
20%< 1mm
Thu 17 Sep
5%< 1mm
Fri 18 Sep
No Rain
Sat 19 Sep
10%< 1mm

Portland Bay Rainfall Statistics View More

September Rainfall

Portland Airport (25km)

Total Rainfall 2026
547.6mm
Daily Average 2026
2.2mm
Wettest Day 2 June, 2026
28.4mm
Wet Days 2026
153/256 (60%)
Total Rainfall August
78.2mm
Daily Average August
2.5mm
Wettest Day 3 August, 2026
9.8mm
Wet Days August
26/31 (84%)
Total Rainfall September
18mm
Daily Average September
1.6mm
Wettest Day 2 September, 2026
8.6mm
Wet Days September
7/13 (54%)

Climate (2021–2025)

Portland Airport (25km)

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Annual Average 2021–2025
811mm
Monthly Average 2021–2026
64.9mm
Daily Average 2021–2026
2.2mm
Wettest Day 1 December, 2024
58.8mm

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