Average annual temperature is 12.3 °C
Absolute maximum temperature: 30.7 °C
Absolute minimum temperature: -2.1 °C
Number of sunny days: 144 days
Number of rainy days: 221 days
Look at detailed online map of Selwyn
* Weather data for Selwyn New Zealand is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.4 | 30.7 | 28.0 | 22.9 | 22.2 | 18.7 | 16.2 | 16.8 | 20.9 | 23.1 | 25.5 | 29.1 |
| Average daytime temperature (°C) | 22.2 | 22.2 | 19.7 | 17.4 | 16.0 | 12.0 | 11.7 | 12.3 | 15.7 | 17.5 | 18.4 | 21.9 |
| Average temperature (°C) | 17.1 | 17.2 | 14.7 | 12.9 | 11.9 | 8.3 | 7.3 | 7.0 | 10.7 | 11.8 | 12.9 | 16.0 |
| Average night temperature (°C) | 13.6 | 13.4 | 10.9 | 9.7 | 9.1 | 5.6 | 3.7 | 3.1 | 7.2 | 7.6 | 8.9 | 12.3 |
| Absolute minimum temperature (°C) | 10.0 | 7.2 | 4.7 | 3.9 | 3.0 | -2.1 | -1.0 | -1.4 | 2.8 | 1.8 | 4.3 | 7.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 15.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 | 15.0 |
| Daylight mean duration (h) | 15.0 | 13.8 | 12.4 | 10.9 | 9.6 | 9.0 | 9.3 | 10.4 | 11.8 | 13.3 | 14.6 | 15.4 |
| Daylight minimum duration (h) | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 8.0 | 8.0 | 9.0 | 11.0 | 12.0 | 14.0 | 15.0 |
| Sunshine mean duration (h) | 10.7 | 9.7 | 8.1 | 7.6 | 5.3 | 4.5 | 6.2 | 7.5 | 7.9 | 9.9 | 10.5 | 10.1 |
| Precipitation (mm) | 69 | 99 | 125 | 82 | 67 | 73 | 144 | 26 | 74 | 53 | 86 | 46 |
| Sunny days | 13 | 9 | 11 | 12 | 10 | 14 | 11 | 19 | 9 | 11 | 13 | 12 |
| Rainy days | 18 | 19 | 20 | 18 | 21 | 16 | 20 | 12 | 21 | 20 | 17 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Selwyn during the most sunny months:
Months with the longest average daylight duration in Selwyn:
The largest precipitation sum in Selwyn is at