Santorini weather in April
April in Santorini: cool, dry — a great time to visit.
#7 of 12 months in Santorini · #342 of 604 destinations to visit in April · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Santorini climate normals — April
| Daytime high | 17°C / 63°F | 🙂 cool |
|---|---|---|
| Nighttime low | 14°C / 57°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 12 mm / 0.5 in | ☀️ dry |
| Rainy days | 2 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 11°C / 51°F | |
| Sunshine | 11.4 h/day | |
| Daylight | 13.1 h | |
| Wind | 33 km/h / 20 mph | |
| Air quality (US AQI) | 54 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Santorini in April — FAQ
- Is April a good time to visit Santorini?
- April in Santorini: cool, dry — a great time to visit. It ranks #7 of 12 months for Santorini on SeasonMap's comfort score (78/100).
- What is the weather like in Santorini in April?
- In April, Santorini averages a daily high of 17.2°C and a low of 13.9°C, with about 11.7 mm of rain over roughly 1.8 rainy days.
- What is the air quality in Santorini in April?
- Santorini has a mean US Air Quality Index of about 54 in April.