Alamo Rainfall Forecast

Today 9 May
20%
Sun 10 May
5%
Mon 11 May
80%
Tue 12 May
No Rain
Wed 13 May
No Rain
Thu 14 May
No Rain
Fri 15 May
5%

Alamo Rainfall Statistics

May Rainfall

San Marcos, San Marcos Municipal Airport (5 miles)

Total Rainfall 2026
9.2in
Daily Average 2026
0.1in
Wettest Day 4 April, 2026
2in
Wet Days 2026
23/129 (18%)
Total Rainfall April
6.1in
Daily Average April
0.2in
Wettest Day 4 April, 2026
2in
Wet Days April
11/30 (37%)
Total Rainfall May
1.1in
Daily Average May
0.2in
Wettest Day 1 May, 2026
1.1in
Wet Days May
1/9 (11%)

Climate (2010–Present)

San Marcos, San Marcos Municipal Airport (5 miles)

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Annual Average 2021–2025
15.4in
Monthly Average 2021–2026
1.4in
Daily Average 2021–2026
0.05in
Wettest Day 6 April, 2023
2.8in

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