Average annual temperature is 16.0 °C
Absolute maximum temperature: 22.9 °C
Absolute minimum temperature: 7.9 °C
Number of sunny days: 6 days
Number of rainy days: 359 days
Look at detailed online map of Iwa
* Weather data for Iwa Papua New Guinea is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 21.9 | 22.2 | 22.6 | 22.6 | 21.9 | 21.6 | 21.8 | 20.7 | 21.8 | 21.5 | 22.9 | 22.4 |
| Average daytime temperature (°C) | 20.0 | 19.7 | 20.3 | 20.0 | 19.6 | 19.3 | 18.9 | 18.0 | 18.7 | 19.3 | 20.5 | 20.7 |
| Average temperature (°C) | 16.5 | 16.5 | 16.4 | 16.3 | 16.4 | 15.9 | 15.4 | 15.0 | 15.4 | 15.8 | 16.2 | 16.8 |
| Average night temperature (°C) | 13.8 | 14.2 | 13.6 | 13.5 | 14.3 | 13.4 | 12.9 | 13.3 | 12.8 | 13.4 | 12.8 | 13.7 |
| Absolute minimum temperature (°C) | 11.2 | 12.5 | 11.3 | 11.6 | 11.7 | 11.0 | 9.9 | 7.9 | 9.3 | 9.3 | 9.7 | 11.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.5 | 12.3 | 12.1 | 12.0 | 11.8 | 11.7 | 11.8 | 11.9 | 12.1 | 12.3 | 12.4 | 12.5 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 8.1 | 6.9 | 8.2 | 7.6 | 5.6 | 7.0 | 7.2 | 6.4 | 7.3 | 7.0 | 9.2 | 8.9 |
| Precipitation (mm) | 258 | 334 | 324 | 275 | 479 | 343 | 216 | 399 | 382 | 490 | 248 | 363 |
| Sunny days | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 |
| Rainy days | 30 | 27 | 31 | 30 | 31 | 30 | 31 | 31 | 30 | 29 | 28 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Iwa is at