Selwyn Rainfall Forecast

Today 18 Sep
10%< 1mm
Fri 19 Sep
90%5–15mm
Sat 20 Sep
85%1–5mm
Sun 21 Sep
85%1–5mm
Mon 22 Sep
75%1–5mm
Tue 23 Sep
15%< 1mm
Wed 24 Sep
15%< 1mm

Selwyn Rainfall Statistics View More

September Rainfall

Archerton (18km)

Total Rainfall 2025
757mm
Daily Average 2025
2.9mm
Wettest Day 27 July, 2025
51.4mm
Wet Days 2025
117/261 (45%)
Total Rainfall August
121.6mm
Daily Average August
3.9mm
Wettest Day 27 August, 2025
34.2mm
Wet Days August
18/31 (58%)
Total Rainfall September
41.8mm
Daily Average September
2.5mm
Wettest Day 17 September, 2025
18.2mm
Wet Days September
8/18 (44%)

Climate (2010–Present)

Archerton (18km)

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Annual Average 2020–2024
1380.9mm
Monthly Average 2020–2025
110.8mm
Daily Average 2020–2025
3.7mm
Wettest Day 8 June, 2023
134.2mm

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