Portland Airport Rainfall Forecast

Today 12 Aug
95%5–10mm
Wed 13 Aug
10%< 1mm
Thu 14 Aug
5%< 1mm
Fri 15 Aug
100%10–20mm
Sat 16 Aug
75%1–5mm
Sun 17 Aug
75%1–5mm
Mon 18 Aug
45%< 1mm

Portland Airport Rainfall Statistics View More

August Rainfall

Portland Airport (0km)

Total Rainfall 2025
463.6mm
Daily Average 2025
2.1mm
Wettest Day 8 June, 2025
30.8mm
Wet Days 2025
120/224 (54%)
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
18.2mm
Daily Average August
1.7mm
Wettest Day 5 August, 2025
9mm
Wet Days August
7/12 (58%)

Climate (2010–Present)

Portland Airport (0km)

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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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