Kos Town Weather in September
September in Kos Town typically sees daytime highs of 26°C (79°F) and nighttime lows of 23°C (73°F). Expect some rainfall during the month. It falls within the summer season.
Rainfall in Kos Town in September
Typically, about 5 days will experience rainfall, with an average of 16 mm (0.6 in) for the month. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.
Temperature in Kos Town in September
Kos Town has perfect weather in September, with days reaching 26°C (79°F) and nights cooling to 23°C (73°F). Experience the summer season in September. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. At 23°C (73°F) overnight, nights are warm enough to sit outside comfortably in light clothing.
Sunshine in Kos Town in September
There are approximately 271 hours of sunshine this month, resulting in mostly clear days.
Average water temperature in September
The water is 26°C (79°F) this month — warm enough that getting in requires no effort at all. Good conditions for swimming, snorkeling, or just floating around.If you favor pleasant temperatures and minimal rainfall, September is one of the best months to visit Kos Town.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Greece, check out our Kos Town's climate page.
Kos Town Temperature in September
Min Temperature
23°C (73°F)
Max Temperature
26°C (79°F)
Water Temperature
26°C (79°F) *
Chance of Rain
15%
Precipitation
16 mm (0.6 in)
Rainy days
5 days
Sunshine
271 hours *
Percentage Sunshine
*
Daily Historical Temperatures
44-year average (1982-2025)
Based on our historical records, temperatures in Kos Town typically stay consistent throughout September, with daily highs averaging around 26°C (79°F). Nights are warm, with lows typically ranging from 19°C (66°F) to 22°C (72°F).
Average temperatures in September
Daily Historical Precipitation
44-year average (1982-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Kos Town in September
Browse day-by-day weather records for Kos Town spanning 45 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kos Town historical weather extremes in September
Our historical data for Kos Town spans 1982 to 2025, revealing these weather extremes.
- Kos Town recorded its highest September temperature of 37°C (99°F) on September 5, 2006.
- The lowest daytime temperature in September was 21°C (70°F), recorded on September 27, 2014.
- Kos Town registered its coldest September night on September 13, 2004, with temperatures dropping to 11°C (52°F).
Best Places in Greece in September
Find out more about the weather in Greece and which places have the best travel conditions in this month. See all of Greece in September →
perfect weather
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tolerable
unpleasant
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What to Wear in Kos Town in September
Warm but pleasant conditions in Kos Town in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Dry conditions mean you won't need to worry about rain protection. Expect water temperatures of around 26°C (79°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Kos Town in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Greece, check out our Kos Town's climate page.
Temperature Rainfall Sunshine Water Temp
See the full Kos Town climate overview or explore weather in Greece.
