Portsmouth Island Rainfall Forecast

Today 18 Dec
25%
Fri 19 Dec
95%
Sat 20 Dec
No Rain
Sun 21 Dec
5%
Mon 22 Dec
No Rain
Tue 23 Dec
15%
Wed 24 Dec
15%

Portsmouth Island Rainfall Statistics

December Rainfall

Piney Island, Bt-11 Bombing Range (21.7 miles)

Total Rainfall 2025
25.1in
Daily Average 2025
0.1in
Wettest Day 2 August, 2025
2.5in
Wet Days 2025
85/352 (24%)
Total Rainfall November
1.9in
Daily Average November
0.1in
Wettest Day 2 November, 2025
0.8in
Wet Days November
6/30 (20%)
Total Rainfall December
1.8in
Daily Average December
0.1in
Wettest Day 2 December, 2025
0.8in
Wet Days December
6/18 (33%)

Climate (2010–Present)

Piney Island, Bt-11 Bombing Range (21.7 miles)

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Annual Average 2020–2024
33.3in
Monthly Average 2020–2025
2.5in
Daily Average 2020–2025
0.1in
Wettest Day 3 August, 2021
4.8in

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