Greece
Skiathos in May: weather, sea & travel advice
This month's data profile
Strong month under the current formula
Skiathos in May is climatically well suited to city breaks, active holidays and hiking and family holidays. The average daily high is around 21 °C, and the sea is about 19 °C. With about 6 rainy days it is dry.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
79/100 · #5
Warmth
#5
Dryness
#4
Sun
#4
Sea warmth
#6
Published best categories: City break, Active
Skiathos · MayPhoto: Shi Annan · CC BY-SA 4.0Climate facts
- Average high
- 21 °C
- Average low
- 17 °C
- Sea
- 19 °C
- Rainy days (est.)
- 6 rainy days (est.)
- Sun (est.)
- 8 h/day
- Humidity
- 70 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| April | 17 | 13 | 6 | 36 | 6.6 | 73 | 3.4 | 15 | 61 |
| May (selected) | 21 | 17 | 6 | 25 | 8.0 | 70 | 3.0 | 19 | 79 |
| June | 25 | 22 | 4 | 23 | 9.2 | 65 | 2.9 | 23 | 93 |
How do the previous and next months compare?
Baseline: May (79/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| April | -18 | -4.2 °C | -4.2 °C | +0.9 | +10.9 mm | -1.4 h | +2.6 % | +0.4 m/s | -3.4 °C |
| June | +14 | +4.5 °C | +4.8 °C | -1.2 | -2.7 mm | +1.2 h | -5 % | -0.1 m/s | +4.3 °C |
All twelve months in context
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Frequently asked questions
How warm is Skiathos in May?
The average daily high is around 21 °C, with an average daily low of about 17 °C.
Can you swim in Skiathos in May?
The sea is about 19 °C (refreshing).
Does it rain a lot in Skiathos in May?
The curated estimate is about 6 rainy days per month, not a directly measured long-term average. Total precipitation averages around 25 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Skiathos?
By the climate score, June, July, August and September are the strongest months for Skiathos. For a beach trip: June, July, August and September. May is not among them.