Year-round weather and climate in Kos, Greece
Average temperatures in Kos run from an average low of 11°C52°F in February up to an average high of 33°C91°F in July. July is the driest month at 0 rainy days; December the wettest at 15. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 19K
- Currency
- EUR
- Language
- Greek
- Time zone
- Athens
Best time to visit
The most pleasant weather falls in August, September, and October, offering a perfect balance of comfortable temperatures and clear skies.
Rain character
Tropical Downpours: Expect intense bursts of rain during wetter months. Pack quick-drying footwear and a compact umbrella.
Day-to-night swing
Evening Chill: Temperatures drop by a noticeable 7°C13°F when the sun goes down. A light sweater or jacket is usually all you need for evening plans.
Seasonality Profile
Mediterranean: Hot, bone-dry summers giving way to mild, occasionally wet winters.
Evening vibe
Outdoor Haven: With over half the year supporting mild evenings, open-air dining and rooftop bars are the norm. Pack smart-casual, breathable evening wear.
Sightseeing stamina
Summer Heat Fatigue: Midday heat in July and August is intense. Pack high-SPF sunscreen and a wide-brimmed hat.
Average temperatures, sunshine, and rainfall
Average monthly weather in Kos, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Jul is typically driest at 0 days (0mm); Dec the wettest at 15 days (162mm).
| Month | Average high | Average low | Sunshine hours | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 16°C / 60°F | 12°C / 54°F | 8h | 11 | 109mm |
| Feb | 15°C / 59°F | 11°C / 52°F | 10h | 5 | 33mm |
| Mar | 17°C / 63°F | 13°C / 55°F | 10h | 9 | 45mm |
| Apr | 20°C / 68°F | 15°C / 60°F | 12h | 7 | 34mm |
| May | 23°C / 74°F | 17°C / 63°F | 13h | 5 | 26mm |
| Jun | 29°C / 85°F | 22°C / 72°F | 14h | 2 | 12mm |
| Jul | 33°C / 91°F | 26°C / 78°F | 14h | 0 | 0mm |
| Aug | 31°C / 88°F | 25°C / 77°F | 13h | 0 | 1mm |
| Sep | 29°C / 84°F | 24°C / 75°F | 12h | 3 | 10mm |
| Oct | 25°C / 77°F | 20°C / 68°F | 10h | 0 | 1mm |
| Nov | 21°C / 69°F | 16°C / 61°F | 9h | 13 | 135mm |
| Dec | 17°C / 63°F | 14°C / 57°F | 8h | 15 | 162mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Kos?
The most sunshine in Kos comes around July, averaging 14 hours a month. If you're heading there then, pack your sunglasses and sunscreen.
What clothes should I pack for Kos?
Your packing list depends entirely on when you travel. Temperatures in Kos swing from an average low of 11°C52°F in February up to 33°C91°F in July. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Kos?
Kos gets rain on about 70 days out of the year. The wettest month is December. If you're traveling during the rainy season, you'll definitely want to pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Kos with Packola.
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