Santorini weather in August
August in Santorini: hot, dry, with very humid — one of the best months to visit.
#1 of 12 months in Santorini · #123 of 604 destinations to visit in August · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Santorini climate normals — August
| Daytime high | 27°C / 80°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 2 mm / 0.1 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 21°C / 70°F | |
| Sunshine | 12.6 h/day | |
| Daylight | 13.5 h | |
| Wind | 31 km/h / 19 mph | |
| Air quality (US AQI) | 64 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Santorini in August — FAQ
- Is August a good time to visit Santorini?
- August in Santorini: hot, dry, with very humid — one of the best months to visit. It ranks #1 of 12 months for Santorini on SeasonMap's comfort score (88/100).
- What is the weather like in Santorini in August?
- In August, Santorini averages a daily high of 26.7°C and a low of 24°C, with about 1.7 mm of rain over roughly 0.4 rainy days.
- What is the air quality in Santorini in August?
- Santorini has a mean US Air Quality Index of about 64 in August.