Average annual temperature is 23.5 °C
Absolute maximum temperature: 32.4 °C
Absolute minimum temperature: 18.4 °C
Number of sunny days: 11 days
Number of rainy days: 354 days
Look at detailed online map of Siwarima
* Weather data for Siwarima 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) | 32.4 | 31.6 | 30.6 | 30.3 | 29.7 | 29.7 | 28.5 | 29.3 | 28.9 | 30.4 | 30.6 | 31.2 |
| Average daytime temperature (°C) | 29.2 | 28.9 | 28.6 | 27.9 | 26.8 | 27.1 | 26.8 | 27.1 | 27.0 | 28.1 | 28.7 | 29.5 |
| Average temperature (°C) | 24.3 | 24.1 | 23.7 | 23.5 | 23.1 | 23.0 | 22.8 | 22.5 | 22.7 | 23.4 | 24.1 | 24.6 |
| Average night temperature (°C) | 21.2 | 21.0 | 20.7 | 20.7 | 20.9 | 20.7 | 20.4 | 19.6 | 20.1 | 20.6 | 21.1 | 21.4 |
| Absolute minimum temperature (°C) | 20.2 | 19.4 | 19.7 | 19.9 | 19.6 | 19.8 | 19.2 | 18.4 | 18.4 | 19.1 | 19.9 | 20.7 |
| 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 | 11.8 | 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) | 8.7 | 8.2 | 8.2 | 7.7 | 6.1 | 7.9 | 7.7 | 8.6 | 7.6 | 8.2 | 9.3 | 9.4 |
| Precipitation (mm) | 549 | 374 | 415 | 418 | 760 | 594 | 620 | 407 | 739 | 367 | 330 | 442 |
| Sunny days | 4 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 4 | 0 | 0 |
| Rainy days | 27 | 28 | 31 | 30 | 31 | 29 | 31 | 30 | 29 | 27 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Siwarima is at