0.01in

Rain Today

Rain Last Hour
0in

Recorded at Hilo, Hilo International Airport Updated 22 mins ago (13.4 miles away)

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Real-Time Extremes

Hottest 94.9 °F
Goodyear Municipal, AZ
Coldest 28.3 °F
Anaktuvuk Pass, Anaktuvuk Pass Airport, AK
Windiest 32.2mph
Skagway, AK
Wettest (Last Hour) 0.4in
Dumas, Moore County Airport, TX
Most Humid 100%
North Palm Beach County General Aviation Airport, FL
Least Humid 9%
Mount Washington, NH
Highest Pressure 1036.9 hPa
Salida - Monarch Pass, CO
Lowest Pressure 990.2 hPa
Shemya, Eareckson AFB, AK

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Opihi Rock Rainfall Forecast

Today 17 Sep
65%
Thu 18 Sep
35%
Fri 19 Sep
70%
Sat 20 Sep
70%
Sun 21 Sep
55%
Mon 22 Sep
40%
Tue 23 Sep
35%

Opihi Rock Rainfall Statistics

September Rainfall

Hilo, Hilo International Airport (13 miles)

Total Rainfall 2025
38.1in
Daily Average 2025
0.1in
Wettest Day 19 March, 2025
1.7in
Wet Days 2025
184/260 (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
8/17 (47%)

Climate (2010–Present)

Hilo, Hilo International Airport (13 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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