Opihi Rock Rainfall Forecast

Today 21 May
80%
Fri 22 May
65%
Sat 23 May
65%
Sun 24 May
60%
Mon 25 May
60%
Tue 26 May
60%
Wed 27 May
60%

Opihi Rock Rainfall Statistics

May Rainfall

Hilo, Hilo International Airport (13 miles)

Total Rainfall 2026
53.9in
Daily Average 2026
0.4in
Wettest Day 14 March, 2026
5.6in
Wet Days 2026
101/141 (72%)
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
8.4in
Daily Average May
0.5in
Wettest Day 17 May, 2026
1.7in
Wet Days May
16/21 (76%)

Climate (2010–Present)

Hilo, Hilo International Airport (13 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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