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Best time to visit Serifos: month by month
Short answer
June and September are the best months: average highs of about 23–24°C, 1–3 rainy days and a sea warm enough for swimming, with prices below August. July and August are the warmest (about 26°C) and driest but the busiest, and the meltemi wind can blow hard for days. May and October suit walking, but some places are closed and ferries are fewer.
Month by month
| Month | High | Low | Rainy days | Crowds |
|---|---|---|---|---|
| Jan | 15°C | 12°C | 14 | low |
| Feb | 14°C | 12°C | 8 | low |
| Mar | 14°C | 12°C | 9 | low |
| Apr | 16°C | 15°C | 4 | low |
| May | 19°C | 18°C | 3 | medium |
| Jun | 23°C | 22°C | 1 | high |
| Jul | 26°C | 24°C | 0 | very high |
| Aug | 26°C | 25°C | 2 | very high |
| Sep | 24°C | 23°C | 3 | high |
| Oct | 21°C | 20°C | 3 | medium |
| Nov | 19°C | 17°C | 6 | low |
| Dec | 17°C | 15°C | 11 | low |
Temperatures and rainy days: Copernicus ERA5 averages, 2021–2023. Crowd levels are our estimate.
Season by season
Spring (Mar–May)
Highs rise from about 14°C in March to 19°C in May, with rain falling from about 9 days to 3; good for walking the old paths, but the sea is still cool and many tavernas open only from May.
Summer (Jun–Aug)
Highs of about 23–26°C and lows of 22–25°C, with almost no rain; the best beach weather, but the meltemi can be strong in July and August and August is crowded.
Autumn (Sep–Nov)
September stays around 24°C with 3 rainy days and warm sea; October is about 21°C and calmer, while November drops to about 19°C with more rain and many places closing.
Winter (Dec–Feb)
Highs of about 14–17°C and 8–14 rainy days a month; very quiet, with most tourist businesses closed and limited ferry links.
Events worth planning around
- Orthodox Easter — March, April or May, depending on the year; a major family and church holiday across Greece
- Feast of the Dormition of the Virgin (Dekapentavgoustos) — 15 August, a national holiday and the busiest week of the year
- Village festivals (panigyria) on saints' days — through the summer; ask locally for dates
When to avoid
Avoid the first three weeks of August if you dislike crowds and high prices, as Serifos fills with holidaymakers from Athens. Winter is not a beach trip: most tavernas and rooms are closed and boats are infrequent.
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Common questions
What is the best month to visit Serifos?
June and September: warm, dry weather, swimmable sea and lower prices than August.
Is Serifos windy in summer?
Yes, the meltemi often blows from the north in July and August. Pick south-facing beaches on windy days.
Is Serifos open in winter?
The island is lived in all year, but most tourist rooms and tavernas close and ferries are limited.