Harbour Islets Rainfall Forecast

Today 18 Aug
25%< 1mm
Wed 19 Aug
100%20–25mm
Thu 20 Aug
95%5–10mm
Fri 21 Aug
95%1–5mm
Sat 22 Aug
80%1–5mm
Sun 23 Aug
60%< 1mm
Mon 24 Aug
65%1–5mm

Harbour Islets Rainfall Statistics View More

August Rainfall

Three Hummock Island (36km)

Total Rainfall 2026
502.2mm
Daily Average 2026
2.5mm
Wettest Day 5 June, 2026
47.8mm
Wet Days 2026
104/230 (45%)
Total Rainfall July
101mm
Daily Average July
4.8mm
Wettest Day 7 July, 2026
39.6mm
Wet Days July
15/31 (48%)
Total Rainfall August
58mm
Daily Average August
3.6mm
Wettest Day 4 August, 2026
21.8mm
Wet Days August
12/18 (67%)

Climate (2021–2025)

Three Hummock Island (36km)

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Annual Average 2021–2025
592.7mm
Monthly Average 2021–2026
66.5mm
Daily Average 2021–2026
2.7mm
Wettest Day 18 October, 2022
82.4mm

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