Observation Island Rainfall Forecast

Today 20 Dec
90%> 100mm
Sun 21 Dec
90%45–85mm
Mon 22 Dec
85%30–50mm
Tue 23 Dec
85%15–35mm
Wed 24 Dec
85%15–35mm
Thu 25 Dec
80%15–35mm
Fri 26 Dec
80%15–35mm

Observation Island Rainfall Statistics View More

December Rainfall

Centre Island (17km)

Total Rainfall 2025
874.8mm
Daily Average 2025
2.5mm
Wettest Day 13 April, 2025
135.8mm
Wet Days 2025
70/354 (20%)
Total Rainfall November
32.6mm
Daily Average November
1.1mm
Wettest Day 16 November, 2025
25.8mm
Wet Days November
3/30 (10%)
Total Rainfall December
54.8mm
Daily Average December
2.9mm
Wettest Day 19 December, 2025
54.6mm
Wet Days December
2/20 (10%)

Climate (2010–Present)

Centre Island (17km)

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Annual Average 2020–2024
1135.4mm
Monthly Average 2020–2025
92mm
Daily Average 2020–2025
3mm
Wettest Day 19 March, 2024
289mm

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