Kos · SummerMonth summary
Kos weather in August
✅ Excellent
🌡️ Temperature min / max
25°C – 30°C
🌧 Rainy days
1% of days
☀️ Sunshine
13.0h per day on average
🌊 🌊 Season
Summer
⭐ ⭐ Weather score
9.2/10
📅 📅 Best month
June (9.8/10)
Quick decision
Should you visit Kos in August?
✅ Excellent
✅ Yes if: you're looking for maximum sunshine — 13.0h per day on average.
❌ No if: you struggle with heat — temperatures regularly exceed 30°C.
Our take: Kos in August ticks all the boxes: warmth, sunshine, minimal rain.
By trip type
Kos in August by trip type
- 🏙️ 🏙️ City break / culture : ✅ Good
- 🚶 🚶 Outdoor activities : ✅ Good
- 🏖️ Beach / swimming : ✅ Good
- 💰 💰 Budget : 💸 Peak season
Local context
What to expect in August
🎯 Hike early morning to avoid the heat — temperatures reach 30°C by 11am In the height of summer, Kos sees high temperatures (30°C). Heat is a factor for outdoor activities. Rain is virtually absent (1% of days) — ideal for planning without a backup. This is one of the best times of year to visit Kos.
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All months for Kos
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | Sun h/d | Score |
|---|---|---|---|---|---|---|
| 🌦️ January | 11°C | 15°C | 42% | 3.7 | 9.0h | 5.8/10 |
| ⛅ February | 12°C | 16°C | 32% | 2.5 | 9.9h | 7.0/10 |
| ⛅ March | 13°C | 17°C | 23% | 1.7 | 11.0h | 7.2/10 |
| 🌤️ April | 15°C | 19°C | 16% | 1.0 | 12.1h | 7.7/10 |
| 🌤️ May | 18°C | 22°C | 12% | 0.5 | 13.4h | 8.6/10 |
| ☀️ June | 22°C | 27°C | 4% | 0.3 | 14.0h | 9.8/10 |
| ☀️ July | 24°C | 30°C | 1% | 0.0 | 13.8h | 9.4/10 |
| ☀️ August | 25°C | 30°C | 1% | 0.0 | 13.0h | 9.2/10 |
| ☀️ September | 23°C | 27°C | 4% | 0.2 | 12.0h | 9.4/10 |
| 🌤️ October | 19°C | 23°C | 11% | 0.7 | 10.1h | 8.3/10 |
| 🌤️ November | 16°C | 20°C | 28% | 2.7 | 9.8h | 7.4/10 |
| ⛅ December | 13°C | 17°C | 38% | 3.7 | 8.9h | 7.0/10 |
Ideal
Fair
Challenging climate
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In August, Kos averages 30°C, 1% rainy days and 13.0h of sunshine per day. Overall weather score: 9.2/10.
See methodology →
Comparison
August vs June (best month)
The best month is June (score 9.8/10). Difference:
- 🌡️ Max temperature : -3°C
- 🌧 Rainy days : +3%
- ☀️ Sunshine : +1.0h/day
FAQ
FAQ — Kos in August
Is August a good time to visit Kos?
August is an excellent time to visit Kos (score 9.2/10). With 30°C, 13.0h of sunshine and 1% rain, conditions are very favourable.
Is it too hot in Kos in August?
Temperatures reach 30°C. It's intense but manageable with sunscreen and water. Sunshine: 13.0h/day.
Accommodation
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Activities & tours
Activities and tours in Kos
Guided tours, skip-the-line tickets and local experiences.
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