Average annual temperature is 24.2 °C
Absolute maximum temperature: 28.8 °C
Absolute minimum temperature: 19.4 °C
Number of sunny days: 88 days
Number of rainy days: 277 days
Look at detailed online map of Nikao
* Weather data for Nikao Cook Islands is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 27.3 | 28.0 | 28.8 | 27.5 | 26.9 | 25.8 | 25.9 | 25.4 | 24.6 | 25.1 | 25.0 | 25.6 |
| Average daytime temperature (°C) | 25.9 | 27.2 | 27.2 | 26.1 | 25.2 | 24.7 | 24.6 | 23.8 | 22.8 | 23.5 | 23.6 | 25.0 |
| Average temperature (°C) | 25.2 | 26.5 | 26.4 | 25.3 | 24.4 | 23.9 | 23.8 | 23.0 | 22.2 | 22.8 | 23.0 | 24.5 |
| Average night temperature (°C) | 24.4 | 25.4 | 25.6 | 24.5 | 23.6 | 23.1 | 22.9 | 22.3 | 21.5 | 22.1 | 22.4 | 24.0 |
| Absolute minimum temperature (°C) | 22.5 | 23.2 | 23.7 | 23.0 | 22.0 | 21.7 | 20.7 | 20.3 | 19.4 | 20.5 | 21.0 | 22.6 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.3 | 12.8 | 12.2 | 11.6 | 11.1 | 10.9 | 11.0 | 11.4 | 12.0 | 12.6 | 13.1 | 13.4 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 9.6 | 10.9 | 8.8 | 9.8 | 7.8 | 7.5 | 7.5 | 8.7 | 9.7 | 9.7 | 11.0 | 10.4 |
| Precipitation (mm) | 238 | 73 | 319 | 147 | 143 | 159 | 115 | 62 | 131 | 81 | 20 | 56 |
| Sunny days | 5 | 3 | 4 | 4 | 8 | 11 | 7 | 10 | 7 | 10 | 8 | 11 |
| Rainy days | 26 | 25 | 27 | 26 | 23 | 19 | 24 | 21 | 23 | 21 | 22 | 20 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Nikao is at