Honolulu Rainfall Forecast

Today 17 May
30%
Mon 18 May
30%
Tue 19 May
30%
Wed 20 May
10%
Thu 21 May
10%
Fri 22 May
10%
Sat 23 May
10%

Honolulu Rainfall Statistics

May Rainfall

Daniel K Inouye International Airport (5 miles)

Total Rainfall 2026
20.7in
Daily Average 2026
0.2in
Wettest Day 13 March, 2026
5.5in
Wet Days 2026
41/137 (30%)
Total Rainfall April
2.9in
Daily Average April
0.1in
Wettest Day 7 April, 2026
1.1in
Wet Days April
8/30 (27%)
Total Rainfall May
0.5in
Daily Average May
0.03in
Wettest Day 15 May, 2026
0.4in
Wet Days May
3/17 (18%)

Climate (2010–Present)

Daniel K Inouye International Airport (5 miles)

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Annual Average 2021–2025
14.8in
Monthly Average 2021–2026
1.4in
Daily Average 2021–2026
0.05in
Wettest Day 6 December, 2021
7.9in

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