Average annual temperature is 26.4 °C
Absolute maximum temperature: 32.6 °C
Absolute minimum temperature: 22.5 °C
Number of sunny days: 4 days
Number of rainy days: 361 days
Look at detailed online map of Isi
* Weather data for Isi 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) | 32.0 | 31.3 | 32.1 | 31.1 | 32.0 | 31.7 | 32.0 | 31.4 | 31.5 | 32.5 | 32.1 | 32.6 |
| Average daytime temperature (°C) | 30.0 | 29.2 | 30.0 | 29.6 | 30.0 | 29.5 | 29.8 | 29.8 | 30.0 | 30.8 | 30.7 | 30.1 |
| Average temperature (°C) | 26.2 | 26.0 | 26.3 | 26.1 | 26.6 | 26.1 | 26.4 | 26.3 | 26.3 | 26.8 | 26.9 | 26.6 |
| Average night temperature (°C) | 23.6 | 23.5 | 23.5 | 23.7 | 24.2 | 23.8 | 23.9 | 23.5 | 23.7 | 23.9 | 24.1 | 24.2 |
| Absolute minimum temperature (°C) | 22.8 | 22.8 | 22.5 | 22.9 | 23.3 | 22.9 | 22.7 | 22.5 | 22.6 | 23.0 | 23.0 | 23.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.1 | 12.2 | 12.2 | 12.3 |
| Daylight minimum 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 |
| Sunshine mean duration (h) | 8.1 | 6.4 | 8.7 | 7.3 | 7.7 | 8.5 | 8.7 | 9.0 | 9.1 | 9.4 | 9.6 | 8.4 |
| Precipitation (mm) | 420 | 526 | 381 | 495 | 425 | 414 | 503 | 404 | 440 | 376 | 357 | 513 |
| Sunny days | 0 | 0 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 28 | 30 | 29 | 31 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |