Average annual temperature is 14.2 °C
Absolute maximum temperature: 22.5 °C
Absolute minimum temperature: 5.8 °C
Number of sunny days: 11 days
Number of rainy days: 354 days
Look at detailed online map of Iumbi Island
* Weather data for Iumbi Island 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) | 22.0 | 21.4 | 21.2 | 21.3 | 22.0 | 21.7 | 21.2 | 21.6 | 21.9 | 21.4 | 22.5 | 22.0 |
| Average daytime temperature (°C) | 19.5 | 19.1 | 19.5 | 19.1 | 19.0 | 19.4 | 19.0 | 18.8 | 19.1 | 19.3 | 20.2 | 20.5 |
| Average temperature (°C) | 14.4 | 14.4 | 14.2 | 14.2 | 14.4 | 14.3 | 14.0 | 13.8 | 14.0 | 13.8 | 14.4 | 14.8 |
| Average night temperature (°C) | 10.8 | 11.6 | 10.9 | 10.9 | 11.6 | 11.0 | 10.8 | 10.9 | 11.1 | 10.0 | 10.6 | 11.5 |
| Absolute minimum temperature (°C) | 9.1 | 9.4 | 9.1 | 8.3 | 9.7 | 8.6 | 7.9 | 7.1 | 7.6 | 5.8 | 7.0 | 9.7 |
| 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) | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.8 | 11.8 | 11.9 | 12.1 | 12.2 | 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) | 7.7 | 5.9 | 7.7 | 7.0 | 6.5 | 8.7 | 8.4 | 8.4 | 7.9 | 8.4 | 9.0 | 7.9 |
| Precipitation (mm) | 355 | 340 | 337 | 451 | 449 | 317 | 296 | 194 | 401 | 290 | 249 | 380 |
| Sunny days | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 1 | 1 | 3 | 3 | 0 |
| Rainy days | 31 | 28 | 30 | 30 | 31 | 30 | 29 | 30 | 29 | 28 | 27 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Iumbi Island is at