Snorkeling in Santorini
Snorkeling in Santorini comes down to warm, calm water. The most comfortable months are July to September, with highs around 85°F (29°C) and the sea at about 75°F (24°C).
Photo: Giles Laurent, CC BY-SA 4.0
Top snorkeling in Santorini
Santorini Adventurous Catamaran Experience with SnorkelingFrom $110View 
Small-Group Santorini Sea Caves Kayak Trip with Snorkeling & PicnicFrom $154View 
Santorini Fishing Private Cruise boat tour - BBQ, SnorkelingFrom $458View
Tours from Viator. Good Outing may earn a commission when you book, at no cost to you.
How to pick a good snorkeling trip
- Check whether gear, a wetsuit and reef-safe sunscreen are included or extra.
- Morning trips usually have calmer, clearer water before the afternoon wind picks up.
- If you're a nervous swimmer, ask for a flotation vest and a guide in the water.
- Smaller boats reach quieter spots; big boats often moor at the busiest reef.
Santorini month by month
Averages for Santorini; sea temperatures offshore, 1991–2020.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F (°C) | 58 (14) | 58 (15) | 61 (16) | 67 (20) | 74 (23) | 82 (28) | 86 (30) | 86 (30) | 81 (27) | 73 (23) | 67 (19) | 60 (16) |
| Low °F (°C) | 50 (10) | 51 (10) | 52 (11) | 56 (14) | 62 (17) | 70 (21) | 74 (23) | 74 (24) | 70 (21) | 64 (18) | 58 (15) | 53 (12) |
| Rain, in | 2.1 | 1.6 | 1.8 | 0.5 | 0.3 | 0.1 | 0.0 | 0.1 | 0.1 | 0.6 | 1.3 | 2.1 |
| Sea °F (°C) | 62 (17) | 61 (16) | 61 (16) | 62 (17) | 66 (19) | 72 (22) | 75 (24) | 76 (24) | 75 (24) | 72 (22) | 68 (20) | 64 (18) |
| Sunset (15th) | 5:26 pm | 5:59 pm | 6:25 pm | 7:52 pm | 8:18 pm | 8:38 pm | 8:37 pm | 8:10 pm | 7:27 pm | 6:43 pm | 5:10 pm | 5:04 pm |
Questions
When is the best time for snorkeling in Santorini?
July to September. Expect highs around 85°F (29°C) and the sea at about 75°F (24°C). The least comfortable months are January and February, when the sea drops to about 61°F.
How warm is the water in Santorini?
The sea averages 61°F (16°C) in February and 76°F (24°C) in August. Below about 75°F most people want a wetsuit for a long swim or dive.
Where can I book snorkeling in Santorini?
The tours above book on Viator. Compare group size, duration, what is included and the cancellation terms before you pick one.
