Average annual temperature is 27.1 °C
Absolute maximum temperature: 34.9 °C
Absolute minimum temperature: 19.5 °C
Number of sunny days: 85 days
Number of rainy days: 280 days
Look at detailed online map of Surabayan
* Weather data for Surabayan 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) | 31.8 | 30.2 | 31.1 | 31.5 | 32.9 | 33.3 | 33.9 | 33.7 | 34.9 | 34.5 | 34.7 | 34.4 |
| Average daytime temperature (°C) | 29.7 | 28.5 | 29.4 | 30.5 | 31.1 | 31.7 | 32.2 | 31.7 | 32.7 | 33.3 | 32.5 | 31.9 |
| Average temperature (°C) | 26.1 | 25.8 | 26.2 | 26.8 | 27.2 | 27.4 | 26.8 | 26.6 | 27.2 | 28.8 | 28.2 | 27.9 |
| Average night temperature (°C) | 23.7 | 23.8 | 23.4 | 23.8 | 23.3 | 23.3 | 22.2 | 21.7 | 22.0 | 24.3 | 24.7 | 24.6 |
| Absolute minimum temperature (°C) | 22.3 | 22.4 | 22.4 | 22.8 | 21.4 | 22.4 | 20.3 | 19.5 | 19.8 | 22.1 | 23.7 | 23.3 |
| 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 | 12.0 | 11.8 | 11.7 | 11.8 | 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) | 9.1 | 6.1 | 9.9 | 10.2 | 10.3 | 10.7 | 10.5 | 10.9 | 11.1 | 11.0 | 10.5 | 10.7 |
| Precipitation (mm) | 237 | 354 | 260 | 169 | 125 | 63 | 56 | 6 | 2 | 30 | 165 | 155 |
| Sunny days | 0 | 0 | 1 | 1 | 6 | 1 | 14 | 17 | 26 | 12 | 3 | 4 |
| Rainy days | 31 | 28 | 30 | 29 | 25 | 29 | 17 | 14 | 4 | 19 | 27 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Surabayan is at