Koili Point Rainfall Forecast

Today 12 Sep
30%
Sun 13 Sep
30%
Mon 14 Sep
45%
Tue 15 Sep
60%
Wed 16 Sep
75%
Thu 17 Sep
65%
Fri 18 Sep
35%

Koili Point Rainfall Statistics

September Rainfall

Hilo, Hilo International Airport (5 miles)

Total Rainfall 2026
112.2in
Daily Average 2026
0.4in
Wettest Day 15 August, 2026
6.8in
Wet Days 2026
206/255 (81%)
Total Rainfall August
21in
Daily Average August
0.7in
Wettest Day 15 August, 2026
6.8in
Wet Days August
27/31 (87%)
Total Rainfall September
6.5in
Daily Average September
0.7in
Wettest Day 10 September, 2026
1.8in
Wet Days September
10/12 (83%)

Climate (2021–2025)

Hilo, Hilo International Airport (5 miles)

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Annual Average 2021–2025
99.9in
Monthly Average 2021–2026
8.6in
Daily Average 2021–2026
0.3in
Wettest Day 18 February, 2023
11.1in

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