Guam Rainfall Forecast

Today 16 Aug
No Rain
Sun 17 Aug
5%
Mon 18 Aug
5%
Tue 19 Aug
10%
Wed 20 Aug
35%
Thu 21 Aug
25%
Fri 22 Aug
10%

Guam Rainfall Statistics

August Rainfall

Cape Girardeau, Cape Girardeau Regional Airport (26.1 miles)

Total Rainfall 2025
38.5in
Daily Average 2025
0.2in
Wettest Day 4 April, 2025
4.5in
Wet Days 2025
75/228 (33%)
Total Rainfall July
5.2in
Daily Average July
0.2in
Wettest Day 7 July, 2025
1.3in
Wet Days July
11/31 (35%)
Total Rainfall August
0.4in
Daily Average August
0.03in
Wettest Day 5 August, 2025
0.1in
Wet Days August
4/16 (25%)

Climate (2010–Present)

Cape Girardeau, Cape Girardeau Regional Airport (26.1 miles)

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Annual Average 2020–2024
45.8in
Monthly Average 2020–2025
3.9in
Daily Average 2020–2025
0.1in
Wettest Day 4 April, 2025
4.5in

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