Average annual temperature is 14.3 °C
Absolute maximum temperature: 23.6 °C
Absolute minimum temperature: 3.6 °C
Number of sunny days: 140 days
Number of rainy days: 225 days
Look at detailed online map of Greville Harbour
* Weather data for Greville Harbour 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) | 23.2 | 23.6 | 22.5 | 19.4 | 19.7 | 16.7 | 15.5 | 14.7 | 16.0 | 21.2 | 20.3 | 22.0 |
| Average daytime temperature (°C) | 20.7 | 20.9 | 19.8 | 17.5 | 16.3 | 14.0 | 13.2 | 12.3 | 14.5 | 16.1 | 17.1 | 19.5 |
| Average temperature (°C) | 18.0 | 18.2 | 17.0 | 15.4 | 14.5 | 12.2 | 11.3 | 10.0 | 12.3 | 13.0 | 14.0 | 16.6 |
| Average night temperature (°C) | 15.9 | 16.2 | 15.1 | 13.7 | 13.0 | 10.7 | 9.5 | 7.9 | 10.5 | 10.8 | 11.9 | 14.4 |
| Absolute minimum temperature (°C) | 13.6 | 12.2 | 8.9 | 10.4 | 7.6 | 7.3 | 5.1 | 3.6 | 8.3 | 6.5 | 8.3 | 10.8 |
| 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 | 13.0 | 14.0 | 15.0 |
| Daylight mean duration (h) | 14.7 | 13.7 | 12.3 | 11.0 | 9.9 | 9.3 | 9.6 | 10.5 | 11.8 | 13.2 | 14.4 | 15.0 |
| Daylight minimum duration (h) | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 | 9.0 | 9.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 9.8 | 10.1 | 10.4 | 7.9 | 6.0 | 6.7 | 7.3 | 8.3 | 8.9 | 10.9 | 11.1 | 10.4 |
| Precipitation (mm) | 103 | 105 | 66 | 154 | 238 | 70 | 36 | 71 | 79 | 48 | 56 | 103 |
| Sunny days | 12 | 7 | 11 | 17 | 8 | 11 | 15 | 8 | 11 | 15 | 11 | 14 |
| Rainy days | 19 | 21 | 20 | 13 | 23 | 19 | 16 | 23 | 19 | 16 | 19 | 17 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Greville Harbour is at