Average annual temperature is 26.8 °C
Absolute maximum temperature: 33.7 °C
Absolute minimum temperature: 20.4 °C
Number of sunny days: 16 days
Number of rainy days: 349 days
Look at detailed online map of Bukit Mertajam
* Weather data for Bukit Mertajam Malaysia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.0 | 32.0 | 33.2 | 32.1 | 33.5 | 32.9 | 31.9 | 33.2 | 33.7 | 32.4 | 30.7 | 31.5 |
| Average daytime temperature (°C) | 29.0 | 29.4 | 30.2 | 30.6 | 30.4 | 31.1 | 30.7 | 31.2 | 30.7 | 29.9 | 29.6 | 29.6 |
| Average temperature (°C) | 25.7 | 25.8 | 26.4 | 27.1 | 27.5 | 27.8 | 27.5 | 27.6 | 27.3 | 26.5 | 26.4 | 26.4 |
| Average night temperature (°C) | 22.9 | 22.9 | 23.1 | 24.2 | 25.0 | 24.7 | 24.8 | 24.8 | 24.6 | 24.1 | 24.2 | 24.2 |
| Absolute minimum temperature (°C) | 21.5 | 21.7 | 20.4 | 22.4 | 24.3 | 23.6 | 23.8 | 23.5 | 23.5 | 22.9 | 23.4 | 22.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.8 | 12.0 | 12.1 | 12.2 | 12.4 | 12.4 | 12.4 | 12.3 | 12.1 | 12.0 | 11.9 | 11.8 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 8.2 | 9.2 | 10.0 | 9.2 | 8.6 | 9.7 | 9.1 | 9.4 | 6.7 | 6.4 | 6.7 | 7.2 |
| Precipitation (mm) | 175 | 149 | 150 | 351 | 380 | 238 | 171 | 333 | 272 | 820 | 373 | 402 |
| Sunny days | 3 | 0 | 1 | 0 | 2 | 4 | 3 | 1 | 2 | 0 | 0 | 0 |
| Rainy days | 28 | 28 | 30 | 30 | 29 | 26 | 28 | 30 | 28 | 31 | 30 | 31 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Bukit Mertajam is at