Average annual temperature is 25.0 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: 20.1 °C
Number of sunny days: 2 days
Number of rainy days: 363 days
Look at detailed online map of Old Simog
* Weather data for Old Simog 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) | 32.5 | 32.7 | 32.7 | 32.0 | 33.0 | 31.4 | 32.0 | 32.3 | 32.0 | 33.0 | 32.1 | 33.2 |
| Average daytime temperature (°C) | 29.5 | 29.7 | 30.4 | 29.0 | 29.8 | 29.4 | 29.3 | 29.7 | 29.5 | 30.2 | 30.1 | 29.8 |
| Average temperature (°C) | 24.9 | 25.0 | 25.1 | 24.7 | 25.3 | 24.9 | 24.9 | 24.8 | 24.9 | 25.2 | 25.3 | 25.1 |
| Average night temperature (°C) | 22.0 | 22.2 | 22.1 | 22.2 | 22.6 | 22.0 | 22.2 | 21.9 | 22.1 | 22.0 | 22.5 | 22.5 |
| Absolute minimum temperature (°C) | 20.8 | 21.3 | 21.3 | 21.1 | 21.4 | 20.8 | 20.9 | 20.1 | 21.1 | 20.8 | 21.2 | 21.6 |
| 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 | 11.9 | 12.0 | 12.1 | 12.2 | 12.3 | 12.3 |
| Daylight minimum duration (h) | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 |
| Sunshine mean duration (h) | 7.1 | 6.1 | 7.7 | 6.5 | 6.9 | 7.6 | 7.7 | 8.1 | 7.6 | 8.2 | 7.6 | 6.2 |
| Precipitation (mm) | 359 | 484 | 421 | 428 | 334 | 251 | 227 | 235 | 385 | 294 | 296 | 584 |
| Sunny days | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rainy days | 31 | 28 | 31 | 30 | 31 | 28 | 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 Old Simog is at