Harrison Island Rainfall Forecast

Today 20 May
No Rain
Thu 21 May
5%< 1mm
Fri 22 May
5%< 1mm
Sat 23 May
5%< 1mm
Sun 24 May
10%< 1mm
Mon 25 May
20%< 1mm
Tue 26 May
40%< 1mm

Harrison Island Rainfall Statistics View More

May Rainfall

Williamson Airfield (37km)

Total Rainfall 2026
500.4mm
Daily Average 2026
3.6mm
Wettest Day 12 January, 2026
121.6mm
Wet Days 2026
51/140 (36%)
Total Rainfall April
10mm
Daily Average April
0.3mm
Wettest Day 28 April, 2026
6.8mm
Wet Days April
6/30 (20%)
Total Rainfall May
11.2mm
Daily Average May
0.6mm
Wettest Day 15 May, 2026
5mm
Wet Days May
7/20 (35%)

Climate (2010–Present)

Williamson Airfield (37km)

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Annual Average 2021–2025
705.4mm
Monthly Average 2021–2026
63.5mm
Daily Average 2021–2026
2.1mm
Wettest Day 12 January, 2026
121.6mm

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