Average annual temperature is 21.7 °C
Absolute maximum temperature: 28.7 °C
Absolute minimum temperature: 18.1 °C
Number of sunny days: 2 days
Number of rainy days: 363 days
Look at detailed online map of Swach Ketjil
* Weather data for Swach Ketjil 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) | 28.3 | 28.2 | 28.3 | 27.6 | 28.6 | 27.2 | 27.6 | 27.9 | 27.9 | 28.7 | 28.4 | 28.4 |
| Average daytime temperature (°C) | 26.1 | 25.9 | 26.4 | 25.4 | 26.2 | 25.5 | 25.4 | 25.7 | 25.5 | 26.3 | 26.3 | 25.9 |
| Average temperature (°C) | 21.8 | 21.7 | 21.8 | 21.6 | 22.1 | 21.6 | 21.6 | 21.4 | 21.4 | 21.9 | 22.0 | 21.9 |
| Average night temperature (°C) | 19.3 | 19.5 | 19.3 | 19.5 | 19.6 | 19.3 | 19.2 | 18.9 | 19.1 | 19.3 | 19.5 | 19.9 |
| Absolute minimum temperature (°C) | 18.4 | 18.5 | 18.2 | 18.1 | 18.5 | 18.3 | 18.2 | 18.1 | 18.1 | 18.4 | 18.1 | 19.2 |
| 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 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Daylight mean duration (h) | 12.3 | 12.2 | 12.1 | 12.0 | 12.0 | 11.9 | 12.0 | 12.0 | 12.1 | 12.2 | 12.3 | 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) | 7.3 | 5.7 | 7.4 | 6.0 | 7.0 | 7.8 | 7.9 | 8.0 | 7.3 | 8.4 | 7.8 | 6.0 |
| Precipitation (mm) | 332 | 401 | 417 | 446 | 367 | 267 | 270 | 296 | 388 | 350 | 328 | 408 |
| Sunny days | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 29 | 30 | 31 | 31 | 30 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Swach Ketjil is at