Temp
25° C
average
Rain
12 mm
per month
Sun
87 %
chance
Humidity
64 %
average
What’s the weather like in Kos in September?
In September, Kos experiences a transition from the hot summer weather to cooler temperatures and occasional rainfall. The weather remains pleasantly warm throughout the month, making it an ideal time to visit for those who prefer milder temperatures.
Average daily temperatures
The average daily temperature in Kos in September ranges from around 22°C (72°F) to 27°C (81°F). While the days can still feel quite warm, especially during the first half of the month, the evenings tend to be cooler, so it is advisable to bring a light jacket or sweater for the evenings.
Sunshine and rainfall
In September, Kos enjoys an average of 11 hours of sunshine per day, providing ample opportunity for outdoor activities and sightseeing. Despite the decreasing temperatures, the sea remains pleasantly warm, perfect for swimming and water sports.
September also marks the start of the wetter season in Kos, with an average of 30mm of rainfall throughout the month. However, the showers are usually short-lived and sporadic, allowing for plenty of sunny days. It is advisable to carry a light raincoat or umbrella in case of unexpected showers.
