San Salvador weather in August
August in San Salvador: sweltering, soaked, with very humid — a fair time to visit.
#9 of 12 months in San Salvador · #518 of 604 destinations to visit in August · comfort 56/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
San Salvador climate normals — August
| Daytime high | 29°C / 84°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Feels like (high) | 34°C / 93°F | |
| Rainfall | 268 mm / 10.5 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 22°C / 71°F | |
| Sunshine | 10 h/day | |
| Daylight | 12.6 h | |
| Wind | 7 km/h / 5 mph | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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San Salvador in August — FAQ
- Is August a good time to visit San Salvador?
- August in San Salvador: sweltering, soaked, with very humid — a fair time to visit. It ranks #9 of 12 months for San Salvador on SeasonMap's comfort score (56/100).
- What is the weather like in San Salvador in August?
- In August, San Salvador averages a daily high of 29°C and a low of 21.8°C, with about 267.6 mm of rain over roughly 26 rainy days.
- What is the air quality in San Salvador in August?
- San Salvador has a mean US Air Quality Index of about 55 in August.