July · Greece
Best time to visit Kythnos in July Weather, crowds & prices
Weather in Kythnos in July
Average temperature 26°C, 4 mm of rain, about 31 days with 6+ hours of sunshine and 69% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
July score
9.9/10
Ranked #2 of 12 months
- Avg temp
- 26°C
- Rainfall
- 4 mm
- Humidity
- 69%
- Days with 6h+ sun
- 31
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
July in Kythnos scores 9.9/10 for beach and coastal travel - one of the top 12-month picks (#2). Expect around 26°C, 4 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.
July ranks 2nd of 12 for Kythnos — one of the best windows
Days in July average 26°C (80°F) — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
At just 4 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 14.3 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Kythnos at 9.9/10 (2nd of 12), just behind June at 9.9/10.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary.
Expect peak pricing, and 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 July?
- In July, Kythnos averages 26°C, 4 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.9/10.
- Is July a good time to visit Kythnos?
- July 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 July?
- Expect about 4 mm of rain in July. Average humidity is 69% and there are about 31 days with 6+ hours of sunshine.
Curated in Kythnos
Tickets & experiences
Things to do in Kythnos
Kythnos, Greece. Live activities and tours from GetYourGuide, matched to this destination.