August · Greece
Best time to visit Sifnos in August Weather, crowds & prices
Weather in Sifnos in August
Average temperature 26°C, 6 mm of rain, about 31 days with 6+ hours of sunshine and 74% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
9.8/10
Ranked #4 of 12 months
- Avg temp
- 26°C
- Rainfall
- 6 mm
- Humidity
- 74%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Sifnos scores 9.8/10 for beach and coastal travel - an above-average month (#4 of 12). Expect around 26°C, 6 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Sifnos is the Cycladic island of potters and chefs, with white villages, old trails and the Chrysopigi monastery.
August ranks 4th of 12 for Sifnos — one of the best windows
August averages 26°C (80°F) and humidity near 74%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 6 mm for the month, with about 31 days with 6+ hours of sunshine and 13.4 hours of daylight to work with.
A 9.8/10 puts this among the year's best months in Sifnos (4th of 12); only July scores higher, at 9.9/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
Plan for peak pricing, with this is one of the busiest months here.
Frequently asked
- What is the weather like in Sifnos in August?
- In August, Sifnos averages 26°C, 6 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.8/10.
- Is August a good time to visit Sifnos?
- August earns a 9.8/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sifnos in August?
- Expect about 6 mm of rain in August. Average humidity is 74% and there are about 31 days with 6+ hours of sunshine.
Curated in Sifnos
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Sifnos, Greece. Live activities and tours from GetYourGuide, matched to this destination.