Surabaya enjoys 256 sunny days a year. Summers are intensely hot — air conditioning is essential. On the other hand, air quality is a concern.
Surabaya, Indonesia is a 6.9M-resident city with 256 sunny days and 0 frost days annually and an annual PM2.5 of 33.5 µg/m³. Indonesia's second-largest city.
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Dinner outside
Monthly climate metrics across temperature, precipitation, wind, and UV.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | |||||||||||||
| Daily high°C | 32 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 32 | 32 |
| Daily mean°C | 29 | 28 | 29 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 30 | 29 | 29 |
| Daily low°C | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 27 | 27 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 36 | 35 | 37 | 37 | 37 | 36 | 36 | 36 | 37 | 37 | 37 | 36 | 36 |
| Mean feelsDaily mean feels-like°C | 31 | 31 | 32 | 34 | 34 | 33 | 32 | 33 | 34 | 34 | 34 | 31 | 33 |
| Low feelsDaily low feels-like°C | 26 | 26 | 28 | 28 | 28 | 27 | 26 | 26 | 27 | 28 | 29 | 27 | 27 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 80 | 83 | 79 | 78 | 72 | 71 | 67 | 65 | 62 | 68 | 73 | 80 | 73 |
| Dewpoint°C | 24.5 | 24.6 | 24.9 | 25.1 | 24.5 | 23.9 | 22.5 | 22.1 | 22.4 | 23.6 | 24.7 | 24.8 | 24.0 |
| Precipitation | |||||||||||||
| Rainfallmm | 296 | 333 | 232 | 245 | 78 | 39 | 19 | 7 | 29 | 66 | 222 | 363 | 1928 |
| Rain days≥1mm | 29 | 28 | 29 | 27 | 14 | 11 | 5 | 1 | 8 | 13 | 27 | 29 | 221 |
| Wind | |||||||||||||
| Wind avgm/s | 2.1 | 2.3 | 1.6 | 1.4 | 1.9 | 1.8 | 2.1 | 2.6 | 2.3 | 1.5 | 1.4 | 1.7 | 1.9 |
| Wind gustsm/s | 5.2 | 4.5 | 3.5 | 3.1 | 3.6 | 3.6 | 3.8 | 4.6 | 4.2 | 3.1 | 3.1 | 4.5 | 3.9 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 9.0 | 9.7 | 9.3 | 9.0 | 9.9 | 9.9 | 10.1 | 10.3 | 10.0 | 10.0 | 10.0 | 9.0 | 9.7 |
| Clear skyindex | 21% | 25% | 33% | 40% | 52% | 52% | 61% | 74% | 60% | 39% | 34% | 22% | 43% |
| UV indexmax avg | 8.4 | 9.0 | 8.8 | 8.8 | 8.1 | 7.8 | 9.2 | 10.7 | 11.9 | 10.5 | 8.5 | 8.2 | 9.2 |
Outdoor activities in Surabaya are challenging most of the year. February through January are the toughest stretch. Dinner Outside manages 0/12 comfortable months.
Tap any month for details · Click activity name for overview
Feels-like °C
Dinner outside
Monthly climate metrics across temperature, precipitation, wind, and UV.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temperature | |||||||||||||
| Daily high°C | 32 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 33 | 33 | 33 | 32 | 32 |
| Daily mean°C | 29 | 28 | 29 | 30 | 30 | 30 | 29 | 30 | 30 | 30 | 30 | 29 | 29 |
| Daily low°C | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 27 | 28 | 28 | 27 | 27 |
| Thermal comfort | |||||||||||||
| High feelsDaily high feels-like°C | 36 | 35 | 37 | 37 | 37 | 36 | 36 | 36 | 37 | 37 | 37 | 36 | 36 |
| Mean feelsDaily mean feels-like°C | 31 | 31 | 32 | 34 | 34 | 33 | 32 | 33 | 34 | 34 | 34 | 31 | 33 |
| Low feelsDaily low feels-like°C | 26 | 26 | 28 | 28 | 28 | 27 | 26 | 26 | 27 | 28 | 29 | 27 | 27 |
| Humidity | |||||||||||||
| HumidityRelative humidity% | 80 | 83 | 79 | 78 | 72 | 71 | 67 | 65 | 62 | 68 | 73 | 80 | 73 |
| Dewpoint°C | 24.5 | 24.6 | 24.9 | 25.1 | 24.5 | 23.9 | 22.5 | 22.1 | 22.4 | 23.6 | 24.7 | 24.8 | 24.0 |
| Precipitation | |||||||||||||
| Rainfallmm | 296 | 333 | 232 | 245 | 78 | 39 | 19 | 7 | 29 | 66 | 222 | 363 | 1928 |
| Rain days≥1mm | 29 | 28 | 29 | 27 | 14 | 11 | 5 | 1 | 8 | 13 | 27 | 29 | 221 |
| Wind | |||||||||||||
| Wind avgm/s | 2.1 | 2.3 | 1.6 | 1.4 | 1.9 | 1.8 | 2.1 | 2.6 | 2.3 | 1.5 | 1.4 | 1.7 | 1.9 |
| Wind gustsm/s | 5.2 | 4.5 | 3.5 | 3.1 | 3.6 | 3.6 | 3.8 | 4.6 | 4.2 | 3.1 | 3.1 | 4.5 | 3.9 |
| Sun & UV | |||||||||||||
| Sunshinehrs/day | 9.0 | 9.7 | 9.3 | 9.0 | 9.9 | 9.9 | 10.1 | 10.3 | 10.0 | 10.0 | 10.0 | 9.0 | 9.7 |
| Clear skyindex | 21% | 25% | 33% | 40% | 52% | 52% | 61% | 74% | 60% | 39% | 34% | 22% | 43% |
| UV indexmax avg | 8.4 | 9.0 | 8.8 | 8.8 | 8.1 | 7.8 | 9.2 | 10.7 | 11.9 | 10.5 | 8.5 | 8.2 | 9.2 |
Outdoor activities in Surabaya are challenging most of the year. February through January are the toughest stretch. Dinner Outside manages 0/12 comfortable months.
Tap any month for details · Click activity name for overview
Air Quality
Surabaya reports an annual PM2.5 of 33.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Surabaya reports an annual PM2.5 of 33.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
PM2.5 annual average of 33.5 µg/m³ exceeds the WHO interim target of 15 µg/m³. The WHO guideline value is 5 µg/m³.
Data sources: WHO (air quality), OECD (safety).
Why not Surabaya? Honestly, air quality is a meaningful downside — at 33.5 µg/m³ annual PM2.5, Surabaya sits above the EU limit, which may matter for allergy sufferers or long-term residents.
Poor fit