Wainaku Rainfall Forecast

Today 14 May
80%
Fri 15 May
65%
Sat 16 May
70%
Sun 17 May
65%
Mon 18 May
75%
Tue 19 May
75%
Wed 20 May
70%

Wainaku Rainfall Statistics

May Rainfall

Hilo, Hilo International Airport (2.5 miles)

Total Rainfall 2026
48.8in
Daily Average 2026
0.4in
Wettest Day 14 March, 2026
5.6in
Wet Days 2026
95/134 (71%)
Total Rainfall April
7in
Daily Average April
0.2in
Wettest Day 7 April, 2026
2.2in
Wet Days April
20/30 (67%)
Total Rainfall May
3.2in
Daily Average May
0.3in
Wettest Day 1 May, 2026
0.7in
Wet Days May
10/14 (71%)

Climate (2010–Present)

Hilo, Hilo International Airport (2.5 miles)

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Annual Average 2021–2025
99.9in
Monthly Average 2021–2026
8.1in
Daily Average 2021–2026
0.3in
Wettest Day 18 February, 2023
11.1in

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