Brother Islands Rainfall Forecast

Today 15 May
95%
Sat 16 May
95%
Sun 17 May
70%
Mon 18 May
90%
Tue 19 May
75%
Wed 20 May
75%
Thu 21 May
75%

Brother Islands Rainfall Statistics

May Rainfall

Port Heiden, Port Heiden Airport (70.8 miles)

Total Rainfall 2026
1in
Daily Average 2026
0.01in
Wettest Day 4 May, 2026
0.4in
Wet Days 2026
14/135 (10%)
Total Rainfall April
0.4in
Daily Average April
0.01in
Wettest Day 8 April, 2026
0.1in
Wet Days April
9/30 (30%)
Total Rainfall May
0.5in
Daily Average May
0.04in
Wettest Day 4 May, 2026
0.4in
Wet Days May
2/15 (13%)

Climate (2010–Present)

Port Heiden, Port Heiden Airport (70.8 miles)

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Annual Average 2021–2025
12.9in
Monthly Average 2021–2026
1.1in
Daily Average 2021–2026
0.04in
Wettest Day 29 October, 2025
0.9in

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