Henderson Islets Rainfall Forecast

Today 13 Sep
25%< 1mm
Mon 14 Sep
85%1–5mm
Tue 15 Sep
95%1–5mm
Wed 16 Sep
25%< 1mm
Thu 17 Sep
15%< 1mm
Fri 18 Sep
10%< 1mm
Sat 19 Sep
30%< 1mm

Henderson Islets Rainfall Statistics View More

September Rainfall

Three Hummock Island (32km)

Total Rainfall 2026
547.4mm
Daily Average 2026
2.5mm
Wettest Day 5 June, 2026
47.8mm
Wet Days 2026
116/256 (45%)
Total Rainfall August
79.4mm
Daily Average August
3.5mm
Wettest Day 4 August, 2026
21.8mm
Wet Days August
15/31 (48%)
Total Rainfall September
23.8mm
Daily Average September
2.2mm
Wettest Day 2 September, 2026
5mm
Wet Days September
9/13 (69%)

Climate (2021–2025)

Three Hummock Island (32km)

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Annual Average 2021–2025
592.7mm
Monthly Average 2021–2026
66.2mm
Daily Average 2021–2026
2.7mm
Wettest Day 18 October, 2022
82.4mm

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