Kos weather in April
April in Kos: nice, a little rain — a great time to visit.
#7 of 12 months in Kos · #613 of 897 destinations to visit in April · comfort 76/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Kos in April
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Kos climate normals — April
| Daytime high | 18°C / 64°F | 😎 nice |
|---|---|---|
| Nighttime low | 15°C / 59°F | |
| Rainfall | 38 mm / 1.5 in | 🌦 some rain |
| Rainy days | 5 days | |
| Humidity | 75% | 💧 humid |
| Dew point | 12°C / 53°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 13.2 h | |
| Wind | 32 km/h / 20 mph | |
| Air quality (US AQI) | 53 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Kos in April — FAQ
- Is April a good time to visit Kos?
- April in Kos: nice, a little rain — a great time to visit. It ranks #7 of 12 months for Kos on SeasonMap's comfort score (76/100).
- What is the weather like in Kos in April?
- In April, Kos averages a daily high of 17.5°C and a low of 14.8°C, with about 38.2 mm of rain over roughly 4.8 rainy days.
- What is the air quality in Kos in April?
- Kos has a mean US Air Quality Index of about 53 in April.