Arroyo Rainfall Forecast

Today 14 Dec
60%
Mon 15 Dec
20%
Tue 16 Dec
40%
Wed 17 Dec
40%
Thu 18 Dec
40%
Fri 19 Dec
25%
Sat 20 Dec
35%

Arroyo Rainfall Statistics

December Rainfall

San Juan, Luis Munoz Marin International Airport (33.6 miles)

Total Rainfall 2025
63.2in
Daily Average 2025
0.2in
Wettest Day 31 August, 2025
2.3in
Wet Days 2025
273/348 (78%)
Total Rainfall November
4.5in
Daily Average November
0.2in
Wettest Day 28 November, 2025
1.6in
Wet Days November
23/30 (77%)
Total Rainfall December
0.8in
Daily Average December
0.1in
Wettest Day 4 December, 2025
0.3in
Wet Days December
9/14 (64%)

Climate (2010–Present)

San Juan, Luis Munoz Marin International Airport (33.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

Annual Average 2020–2024
64.8in
Monthly Average 2020–2025
5.4in
Daily Average 2020–2025
0.2in
Wettest Day 27 October, 2023
5.2in

Get WillyWeather+ to remove ads