Hawaiian Beaches Rainfall Forecast

Today 18 Sep
45%
Fri 19 Sep
75%
Sat 20 Sep
75%
Sun 21 Sep
55%
Mon 22 Sep
45%
Tue 23 Sep
35%
Wed 24 Sep
35%

Hawaiian Beaches Rainfall Statistics

September Rainfall

Hilo, Hilo International Airport (14.9 miles)

Total Rainfall 2025
38.1in
Daily Average 2025
0.1in
Wettest Day 19 March, 2025
1.7in
Wet Days 2025
185/261 (71%)
Total Rainfall August
1.5in
Daily Average August
0.05in
Wettest Day 30 August, 2025
0.3in
Wet Days August
18/31 (58%)
Total Rainfall September
1.9in
Daily Average September
0.1in
Wettest Day 10 September, 2025
0.8in
Wet Days September
9/18 (50%)

Climate (2010–Present)

Hilo, Hilo International Airport (14.9 miles)

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Annual Average 2020–2024
112.2in
Monthly Average 2020–2025
8.7in
Daily Average 2020–2025
0.3in
Wettest Day 18 February, 2023
11.1in

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