Santorini · SpringMonth summary
Santorini weather in May
✅ Good
🌡️ Temperature min / max
16°C – 21°C
🌧 Rainy days
9% of days
☀️ Sunshine
12.8h per day on average
🌊 🌊 Season
Spring
⭐ ⭐ Weather score
8.4/10
📅 📅 Best month
July (9.9/10)
Quick decision
Should you visit Santorini in May?
✅ Good
✅ Yes if: you want good weather with lower prices than peak season.
❌ No if: you need guaranteed perfect weather — some mixed days are possible.
Our take: Favourable conditions in May (8.4/10). July scores higher but the gap is small.
By trip type
Santorini in May by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ⚠️ Possible
- 💰 💰 Budget : 🌿 Shoulder
Local context
What to expect in May
🎯 Good diving season — comfortable water temperature and satisfactory visibility Spring marks the start of the good season in Santorini. Temperatures rise (21°C) and tourists have not yet arrived en masse. Rain is virtually absent (9% of days) — ideal for planning without a backup. A good balance between weather and crowds, even if July (9.9/10) remains theoretically better.
Browse by month
All months for Santorini
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ⛅ January | 10°C | 14°C | 32% | 1.5 | 8.8h | 6.3/10 |
| ⛅ February | 11°C | 14°C | 24% | 1.6 | 9.2h | 7.0/10 |
| ⛅ March | 12°C | 16°C | 21% | 1.4 | 10.8h | 7.1/10 |
| 🌤️ April | 13°C | 18°C | 13% | 0.4 | 11.7h | 7.6/10 |
| 🌤️ May | 16°C | 21°C | 9% | 0.4 | 12.8h | 8.4/10 |
| ☀️ June | 21°C | 26°C | 4% | 0.2 | 13.3h | 9.5/10 |
| ☀️ July | 23°C | 28°C | 1% | 0.0 | 13.1h | 9.9/10 |
| ☀️ August | 23°C | 28°C | 3% | 0.1 | 12.7h | 9.7/10 |
| ☀️ September | 22°C | 26°C | 3% | 0.2 | 11.5h | 9.1/10 |
| 🌤️ October | 18°C | 22°C | 8% | 0.4 | 10.0h | 8.2/10 |
| 🌤️ November | 15°C | 19°C | 15% | 0.8 | 9.0h | 7.4/10 |
| ⛅ December | 12°C | 16°C | 31% | 1.7 | 8.5h | 7.0/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In May, Santorini averages 21°C, 9% rainy days and 12.8h of sunshine per day. Overall weather score: 8.4/10.
See methodology →
Comparison
May vs July (best month)
The best month is July (score 9.9/10). Difference:
- 🌡️ Max temperature : +7°C
- 🌧 Rainy days : -8%
- ☀️ Sunshine : +0.3h/day
FAQ
FAQ — Santorini in May
Is May a good time to visit Santorini?
May is an excellent time to visit Santorini (score 8.4/10). With 21°C, 12.8h of sunshine and 9% rain, conditions are very favourable.
What to do in Santorini in May?
With 21°C and 12.8h of sunshine, all outdoor activities are possible: hiking, sightseeing and terraces.
Accommodation
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