Surabaya weather in August
August in Surabaya: hot, dry — one of the best months to visit.
#1 of 12 months in Surabaya · #547 of 897 destinations to visit in August · comfort 77/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Surabaya in August
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Surabaya climate normals — August
| Daytime high | 32°C / 89°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 76°F | |
| Rainfall | 13 mm / 0.5 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 21°C / 70°F | |
| Sunshine | 11 h/day | |
| Daylight | 11.9 h | |
| Wind | 14 km/h / 9 mph | |
| Air quality (US AQI) | 61 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Surabaya in August — FAQ
- Is August a good time to visit Surabaya?
- August in Surabaya: hot, dry — one of the best months to visit. It ranks #1 of 12 months for Surabaya on SeasonMap's comfort score (77/100).
- What is the weather like in Surabaya in August?
- In August, Surabaya averages a daily high of 31.8°C and a low of 24.4°C, with about 13.2 mm of rain over roughly 2.4 rainy days.
- What is the air quality in Surabaya in August?
- Surabaya has a mean US Air Quality Index of about 61 in August.