Weather in Santorini Island for May 2026
In general, the average temperature in Santorini Island at the beginning of May is 18.6 °C. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 21.3 °C by the end of May.
With an average of 5 rainy days, Santorini Island experiences minimal rainfall in May.
Is May a good time to visit Santorini Island? check out the best time to travel to Santorini Island page.
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Santorini Island Weather May
Temperatures trend during May in Santorini Island
May weather in Santorini Island day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 May |  Patchy rain possible | 18° /16° | 1.1 mm | 5 | |
| 2 May |  Sunny | 19° /16° | 0.6 mm | 5 | |
| 3 May | Sunny | 19° /16° | 0.1 mm | 5 | |
| 4 May | Sunny | 18° /16° | 0.6 mm | 5 | |
| 5 May | Sunny | 18° /16° | 0.8 mm | 5 | |
| 6 May | Sunny | 19° /16° | 0 mm | 5 | |
| 7 May |  Overcast | 19° /17° | 0 mm | 5 | |
| 8 May |  Cloudy | 20° /17° | 0.1 mm | 5 | |
| 9 May | Sunny | 19° /17° | 0.2 mm | 5 | |
| 10 May | Sunny | 19° /16° | 1.7 mm | 5 | |
| 11 May | Sunny | 17° /16° | 0.2 mm | 5 | |
| 12 May | Sunny | 19° /16° | 1 mm | 5 | |
| 13 May | Sunny | 19° /17° | 0 mm | 5 | |
| 14 May | Sunny | 19° /16° | 0 mm | 5 | |
| 15 May | Sunny | 20° /17° | 0 mm | 5 | |
| 16 May | Sunny | 20° /18° | 0 mm | 5 | |
| 17 May | Sunny | 20° /18° | 0 mm | 5 | |
| 18 May | Sunny | 20° /18° | 0 mm | 5 | |
| 19 May | Sunny | 20° /17° | 0 mm | 5 | |
| 20 May | Sunny | 20° /18° | 0.1 mm | 5 | |
| 21 May | Sunny | 20° /18° | 0.4 mm | 6 | |
| 22 May | Patchy rain possible | 20° /17° | 1.2 mm | 5 | |
| 23 May | Sunny | 20° /18° | 0.1 mm | 6 | |
| 24 May | Sunny | 21° /18° | 0 mm | 6 | |
| 25 May | Sunny | 22° /19° | 0.2 mm | 6 | |
| 26 May | Sunny | 21° /18° | 0.1 mm | 6 | |
| 27 May | Sunny | 21° /19° | 0.1 mm | 6 | |
| 28 May | Sunny | 22° /19° | 0 mm | 6 | |
| 29 May | Sunny | 21° /19° | 0.1 mm | 5 | |
| 30 May |  Partly cloudy | 21° /19° | 0.4 mm | 6 | |
| 31 May | Sunny | 21° /19° | 1.5 mm | 6 | |
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Santorini Island weather in May vs April vs June
| April | May | June | |
|---|---|---|---|
| Weather | Sunny | Sunny | Sunny |
| Temperatures | 17°/15° | 19°/18° | 23°/22° |
| Rainfall | 12 mm | 11 mm | 3 mm |
| Wind | 32.6 km/h | 28.7 km/h | 29.2 km/h |
| Humidity | 71% | 76% | 75% |
| Rainy days | 6 days | 5 days | 1 days |
| Dry days | 24 days | 26 days | 29 days |
Planning a trip to Santorini Island? Discover the best time to visit
Santorini Island in May - FAQ
What to pack to Santorini Island in May?
As you prepare for your trip to Santorini Island in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Santorini Island, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Layered Clothing: Light sweaters, long-sleeve shirts, light jackets, and comfortable pants
May rainfall patterns in Santorini Island
UV exposure in Santorini Island during May
Quick links
Where is Santorini Island?Get accurate weather forecasts for Santorini Island, located at latitude 36.406 and longitude 25.457. Stay updated with localized weather information tailored for Santorini Island.