VacationSage
The year at a glance
ExcellentGoodFairPoor Click a month to compare destinations.
The short answer
Go in May–October. The least comfortable stretch is January–February.
- Warmest month: July, average high 30°C (85°F).
- Coolest month: January, average high 14°C (57°F), lows near 10°C (49°F).
- Wettest month: January, about 103 mm (4.1 in) of rain.
- Driest month: July, about 0 mm (0.0 in).
Quick facts
- Currency
- Euro
- Language
- Greek
- Plugs
- Type C, Type F
- Drives on the
- right
- Calling code
- +30
- Airports
- Santorini (Thira) National Airport (JTR)
- Population
- 17,430
Temperature and rain through the year
Average highAverage lowRain (mm, right axis)
Top sights in Santorini
- Santorini caldera caldera in Thira municipality, Greece
- Nea Kameni island in the Santorini caldera
- Palea Kameni island in the Santorini caldera
- St. John the Baptist Cathedral, Santorini church building in Fira, South Aegean, Greece
Ranked by how widely each place is covered across Wikipedia's language editions, a rough measure of fame rather than a recommendation.
Travel advisories
United States
Level 1 Exercise Normal Precautions
Read the full advisory at travel.state.gov
Checked 2026-11-02.
United Kingdom
No FCDO warning against travel to any part of Greece.
Latest change (2026-10-07): Updated information on European Entry-Exit System (EES) (‘Entry requirements’ page).
Checked 2026-11-02.
Advisories are summarised from official sources and can change quickly; always read the source before you travel.
Month by month
| Month | Score | High | Low | Rain | Cloud | Dew point | Daylight |
|---|---|---|---|---|---|---|---|
| January | 3.9 Poor | 14°C 57°F | 10°C 49°F | 103 mm 4.1 in | 32% | 7°C45°F dry | 9.8 h |
| February | 4.3 Poor | 14°C 58°F | 10°C 49°F | 84 mm 3.3 in | 31% | 7°C45°F dry | 10.7 h |
| March | 6.0 Fair | 16°C 61°F | 11°C 51°F | 55 mm 2.2 in | 26% | 7°C45°F dry | 11.7 h |
| April | 8.0 Excellent | 19°C 66°F | 13°C 55°F | 25 mm 1.0 in | 21% | 10°C49°F dry | 12.9 h |
| May | 10.0 Excellent | 23°C 74°F | 16°C 62°F | 14 mm 0.5 in | 14% | 12°C54°F comfortable | 13.9 h |
| June | 10.0 Excellent | 28°C 82°F | 21°C 69°F | 3 mm 0.1 in | 4% | 15°C59°F comfortable | 14.5 h |
| July | 9.7 Excellent | 30°C 85°F | 23°C 74°F | 0 mm 0.0 in | 0% | 17°C62°F sticky | 14.3 h |
| August | 9.6 Excellent | 30°C 85°F | 23°C 74°F | 1 mm 0.1 in | 1% | 18°C64°F sticky | 13.4 h |
| September | 10.0 Excellent | 26°C 80°F | 20°C 69°F | 10 mm 0.4 in | 4% | 16°C60°F comfortable | 12.2 h |
| October | 9.7 Excellent | 23°C 74°F | 18°C 64°F | 47 mm 1.8 in | 16% | 14°C57°F comfortable | 11.0 h |
| November | 7.7 Good | 19°C 67°F | 14°C 57°F | 66 mm 2.6 in | 28% | 12°C54°F comfortable | 10.0 h |
| December | 5.0 Fair | 16°C 60°F | 11°C 52°F | 92 mm 3.6 in | 33% | 8°C47°F dry | 9.5 h |
Public holidays in the next 12 months
Holidays can mean closures, festivals and busier transport. National public holidays for Greece; school holidays are not included.
- December 2026
- Χριστούγεννα
- Σύναξη της Υπεραγίας Θεοτόκου
- January 2027
- Πρωτοχρονιά
- Θεοφάνεια
- March 2027
- Καθαρά Δευτέρα
- Εικοστή Πέμπτη Μαρτίου
- April 2027
- Μεγάλη Παρασκευή
- May 2027
- Εργατική Πρωτομαγιά
- Δευτέρα του Πάσχα
- Εργατική Πρωτομαγιά (παρατηρήθηκε)
- June 2027
- Δευτέρα του Αγίου Πνεύματος
- August 2027
- Κοίμηση της Θεοτόκου
- October 2027
- Ημέρα του Όχι
More in Europe
Temperature, rain and dew point are 1991–2020 averages from a ~4 km climate grid; cloud cover is a 1981–2010 average. Recent years run warmer in most places, and a single trip can differ a lot. How this is calculated.