Keaau Rainfall Forecast

Today 7 Sep
95%
Tue 8 Sep
95%
Wed 9 Sep
85%
Thu 10 Sep
60%
Fri 11 Sep
45%
Sat 12 Sep
50%
Sun 13 Sep
30%

Keaau Rainfall Statistics

September Rainfall

Hilo, Hilo International Airport (6.8 miles)

Total Rainfall 2026
107.4in
Daily Average 2026
0.4in
Wettest Day 15 August, 2026
6.8in
Wet Days 2026
200/250 (80%)
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
1.7in
Daily Average September
0.4in
Wettest Day 2 September, 2026
0.7in
Wet Days September
4/7 (57%)

Climate (2021–2025)

Hilo, Hilo International Airport (6.8 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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