Santa Barbara weather in August
August in Santa Barbara: hot, dry, with clean air — one of the best months to visit.
#1 of 12 months in Santa Barbara · #4 of 897 destinations to visit in August · comfort 97/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Santa Barbara in August
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Santa Barbara climate normals — August
| Daytime high | 29°C / 84°F | 🥵 hot |
|---|---|---|
| Nighttime low | 19°C / 67°F | |
| Rainfall | 5 mm / 0.2 in | ☀️ dry |
| Rainy days | 1 days | |
| Humidity | 61% | 💧 humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 12.3 h/day | |
| Daylight | 13.4 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Santa Barbara in August — FAQ
- Is August a good time to visit Santa Barbara?
- August in Santa Barbara: hot, dry, with clean air — one of the best months to visit. It ranks #1 of 12 months for Santa Barbara on SeasonMap's comfort score (97/100).
- What is the weather like in Santa Barbara in August?
- In August, Santa Barbara averages a daily high of 29°C and a low of 19.4°C, with about 4.5 mm of rain over roughly 0.8 rainy days.
- What is the air quality in Santa Barbara in August?
- Santa Barbara has a mean US Air Quality Index of about 37 in August.