Portland Bay Rainfall Forecast

Today 17 Dec
No Rain
Thu 18 Dec
25%< 1mm
Fri 19 Dec
35%< 1mm
Sat 20 Dec
30%< 1mm
Sun 21 Dec
85%5–15mm
Mon 22 Dec
35%< 1mm
Tue 23 Dec
45%< 1mm

Portland Bay Rainfall Statistics View More

December Rainfall

Portland Airport (25km)

Total Rainfall 2025
744.2mm
Daily Average 2025
2.2mm
Wettest Day 8 June, 2025
30.8mm
Wet Days 2025
182/351 (52%)
Total Rainfall November
7.4mm
Daily Average November
0.3mm
Wettest Day 3 November, 2025
7mm
Wet Days November
3/30 (10%)
Total Rainfall December
0mm
Daily Average December
0mm
Wettest Day 1 December, 2025
0mm
Wet Days December
–

Climate (2010–Present)

Portland Airport (25km)

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Annual Average 2020–2024
837mm
Monthly Average 2020–2025
68.6mm
Daily Average 2020–2025
2.3mm
Wettest Day 1 December, 2024
58.8mm

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