Average annual temperature is 12.5 °C
Absolute maximum temperature: 24.7 °C
Absolute minimum temperature: 0.5 °C
Number of sunny days: 77 days
Number of rainy days: 288 days
Look at detailed online map of Eltham
* Weather data for Eltham 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) | 24.1 | 24.7 | 22.1 | 20.4 | 19.5 | 16.0 | 14.0 | 13.9 | 19.4 | 20.1 | 19.8 | 23.9 |
| Average daytime temperature (°C) | 20.4 | 20.1 | 18.8 | 17.5 | 15.2 | 12.6 | 11.7 | 11.2 | 14.5 | 15.8 | 16.4 | 20.0 |
| Average temperature (°C) | 16.7 | 16.4 | 14.6 | 13.7 | 12.3 | 9.2 | 9.0 | 7.3 | 10.7 | 11.5 | 12.5 | 15.9 |
| Average night temperature (°C) | 13.9 | 13.7 | 11.3 | 10.9 | 10.3 | 6.4 | 6.7 | 4.1 | 7.9 | 8.2 | 9.4 | 12.8 |
| Absolute minimum temperature (°C) | 9.7 | 9.7 | 6.6 | 5.8 | 3.9 | 2.3 | 2.2 | 0.5 | 2.9 | 2.8 | 4.4 | 7.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.6 | 13.6 | 12.3 | 11.0 | 10.0 | 9.4 | 9.7 | 10.6 | 11.8 | 13.1 | 14.3 | 14.9 |
| Daylight minimum duration (h) | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 8.1 | 8.3 | 10.0 | 7.4 | 5.7 | 6.9 | 6.7 | 7.5 | 8.4 | 9.1 | 9.7 | 9.2 |
| Precipitation (mm) | 330 | 153 | 132 | 144 | 215 | 58 | 75 | 94 | 158 | 78 | 129 | 133 |
| Sunny days | 5 | 3 | 9 | 7 | 2 | 9 | 3 | 8 | 11 | 6 | 7 | 7 |
| Rainy days | 26 | 25 | 22 | 23 | 29 | 21 | 28 | 23 | 19 | 25 | 23 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Eltham is at