Selwyn Rainfall Forecast

Today 18 May
95%5–10mm
Tue 19 May
65%1–5mm
Wed 20 May
25%< 1mm
Thu 21 May
15%< 1mm
Fri 22 May
10%< 1mm
Sat 23 May
15%< 1mm
Sun 24 May
60%1–5mm

Selwyn Rainfall Statistics View More

May Rainfall

Archerton (18km)

Total Rainfall 2026
313.8mm
Daily Average 2026
2.5mm
Wettest Day 23 February, 2026
45mm
Wet Days 2026
50/138 (36%)
Total Rainfall April
53.6mm
Daily Average April
1.8mm
Wettest Day 10 April, 2026
31.8mm
Wet Days April
10/30 (33%)
Total Rainfall May
62.2mm
Daily Average May
3.7mm
Wettest Day 4 May, 2026
35.6mm
Wet Days May
9/18 (50%)

Climate (2010–Present)

Archerton (18km)

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Annual Average 2021–2025
1313.8mm
Monthly Average 2021–2026
110.5mm
Daily Average 2021–2026
3.7mm
Wettest Day 8 June, 2023
134.2mm

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