Average annual temperature is 27.8 °C
Absolute maximum temperature: 36.3 °C
Absolute minimum temperature: 20.6 °C
Number of sunny days: 138 days
Number of rainy days: 227 days
Look at detailed online map of Surabaya
* Weather data for Surabaya Indonesia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 31.6 | 30.9 | 31.3 | 31.2 | 31.4 | 32.1 | 32.3 | 31.9 | 33.3 | 35.4 | 36.3 | 35.4 |
| Average daytime temperature (°C) | 30.1 | 29.6 | 30.0 | 30.1 | 30.2 | 31.2 | 31.2 | 31.1 | 32.1 | 33.7 | 34.4 | 32.8 |
| Average temperature (°C) | 26.6 | 26.2 | 26.7 | 27.2 | 27.9 | 28.2 | 27.4 | 27.4 | 28.0 | 29.5 | 29.6 | 28.4 |
| Average night temperature (°C) | 24.4 | 24.3 | 24.3 | 25.1 | 24.9 | 24.7 | 22.9 | 23.0 | 22.9 | 24.7 | 25.3 | 24.8 |
| Absolute minimum temperature (°C) | 23.3 | 23.4 | 22.9 | 23.8 | 22.9 | 23.0 | 20.7 | 20.6 | 20.6 | 23.3 | 23.8 | 23.7 |
| 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) | 12.5 | 12.3 | 12.1 | 11.9 | 11.8 | 11.7 | 11.7 | 11.9 | 12.1 | 12.3 | 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) | 9.2 | 7.6 | 9.6 | 9.1 | 10.2 | 10.9 | 10.6 | 11.0 | 11.1 | 11.5 | 11.1 | 10.4 |
| Precipitation (mm) | 254 | 359 | 273 | 243 | 76 | 3 | 28 | 1 | 0 | 4 | 56 | 176 |
| Sunny days | 0 | 0 | 0 | 0 | 15 | 16 | 21 | 28 | 29 | 22 | 6 | 1 |
| Rainy days | 31 | 28 | 31 | 30 | 16 | 14 | 10 | 3 | 1 | 9 | 24 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Surabaya is at