Normally the average daily weather in Skiathos right-through May is 17. Through the month the highs are about 23 with lows of 11. The table below has some further insights:
| Month | Degrees Celsius |
|---|---|
| Temperature | 17 |
| High Temperature | 23 |
| Low Temperature | 11 |
| Sunshine Per Day | 11 |
Useful Links: Skiathos Weather: Average Weather & Yearly Climate