Bay Island Rainfall Forecast

Today 19 Dec
35%< 1mm
Sat 20 Dec
10%< 1mm
Sun 21 Dec
30%< 1mm
Mon 22 Dec
45%< 2mm
Tue 23 Dec
35%< 1mm
Wed 24 Dec
50%1–5mm
Thu 25 Dec
65%1–10mm

Bay Island Rainfall Statistics View More

December Rainfall

Williamson Airfield (21km)

Total Rainfall 2025
864.2mm
Daily Average 2025
2.5mm
Wettest Day 4 February, 2025
84mm
Wet Days 2025
102/353 (29%)
Total Rainfall November
121.8mm
Daily Average November
4.1mm
Wettest Day 17 November, 2025
50.2mm
Wet Days November
11/30 (37%)
Total Rainfall December
19.6mm
Daily Average December
1.2mm
Wettest Day 1 December, 2025
16.6mm
Wet Days December
6/19 (32%)

Climate (2010–Present)

Williamson Airfield (21km)

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Annual Average 2020–2024
708mm
Monthly Average 2020–2025
58.8mm
Daily Average 2020–2025
2mm
Wettest Day 4 February, 2025
84mm

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