Chichester Reservoir Rainfall Forecast

Today 11 Dec
90%15–30mm
Fri 12 Dec
80%5–20mm
Sat 13 Dec
30%< 1mm
Sun 14 Dec
40%< 2mm
Mon 15 Dec
70%1–10mm
Tue 16 Dec
50%1–5mm
Wed 17 Dec
20%< 1mm

Chichester Reservoir Rainfall Statistics View More

December Rainfall

Upper Chichester (Simmonds) (44km)

Total Rainfall 2025
1806mm
Daily Average 2025
5.3mm
Wettest Day 20 May, 2025
171mm
Wet Days 2025
128/345 (37%)
Total Rainfall November
44mm
Daily Average November
1.5mm
Wettest Day 27 November, 2025
19mm
Wet Days November
7/30 (23%)
Total Rainfall December
4mm
Daily Average December
0.4mm
Wettest Day 8 December, 2025
3mm
Wet Days December
2/11 (18%)

Climate (2010–Present)

Upper Chichester (Simmonds) (44km)

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Annual Average 2020–2024
933.8mm
Monthly Average 2021–2025
121.1mm
Daily Average 2021–2025
4mm
Wettest Day 20 May, 2025
171mm

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