Kos weather in August
August in Kos: warm, dry, with very humid — an excellent time to visit.
#4 of 12 months in Kos · #351 of 897 destinations to visit in August · comfort 85/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Kos in August
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Kos climate normals — August
| Daytime high | 27°C / 81°F | 🌤 warm |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Rainfall | 1 mm / 0 in | ☀️ dry |
| Rainy days | 0 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 12.5 h/day | |
| Daylight | 13.5 h | |
| Wind | 31 km/h / 19 mph | |
| Air quality (US AQI) | 81 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Kos in August — FAQ
- Is August a good time to visit Kos?
- August in Kos: warm, dry, with very humid — an excellent time to visit. It ranks #4 of 12 months for Kos on SeasonMap's comfort score (85/100).
- What is the weather like in Kos in August?
- In August, Kos averages a daily high of 27.4°C and a low of 25°C, with about 0.5 mm of rain over roughly 0.2 rainy days.
- What is the air quality in Kos in August?
- Kos has a mean US Air Quality Index of about 81 in August.