August · Greece
Best time to visit Kythnos in August Weather, crowds & prices
Weather in Kythnos in August
Average temperature 27°C, 12 mm of rain, about 31 days with 6+ hours of sunshine and 71% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
9.9/10
Ranked #3 of 12 months
- Avg temp
- 27°C
- Rainfall
- 12 mm
- Humidity
- 71%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Kythnos scores 9.9/10 for beach and coastal travel - one of the top 12-month picks (#3). Expect around 27°C, 12 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Kythnos keeps dry stone walls, a divided hilltop capital and the sandy sandbar at Kolona in the western Cyclades.
August ranks 3rd of 12 for Kythnos — one of the best windows
August averages 27°C (80°F) and humidity near 71%, so the practical pattern is early mornings, a long midday break, and evenings back outside.
Rain is a non-issue at 12 mm for the month, with about 31 days with 6+ hours of sunshine and 13.4 hours of daylight to work with.
A 9.9/10 puts this among the year's best months in Kythnos (3rd of 12); only June 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. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Kythnos in August?
- In August, Kythnos averages 27°C, 12 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.9/10.
- Is August a good time to visit Kythnos?
- August earns a 9.9/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Kythnos in August?
- Expect about 12 mm of rain in August. Average humidity is 71% and there are about 31 days with 6+ hours of sunshine.
Curated in Kythnos
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Things to do in Kythnos
Kythnos, Greece. Live activities and tours from GetYourGuide, matched to this destination.