Kos Town Weather in May
May in Kos Town typically sees daytime highs of 21°C (70°F) and nighttime lows of 18°C (64°F). Expect some rainfall during the month.
Rainfall in Kos Town in May
You can typically expect 4 days of rain this month, averaging around 16 mm (0.6 in). When rain does fall, showers tend to be light and brief. Most days will be dry.
Temperature in Kos Town in May
Kos Town has perfect weather in May, with days reaching 21°C (70°F) and nights cooling to 18°C (64°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. At 18°C (64°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Kos Town in May
Enjoy a sunny month with about 286 hours of sunshine, the clear skies make Kos Town even more beautiful.
Average water temperature in May
The water sits at 21°C (70°F), which is a nice temperature for swimming. Not too cold, not too warm — most visitors are happy to spend time in the water.If you're a fan of comfortable temperatures and drier conditions, May is a great time to visit.
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 May
Min Temperature
18°C (64°F)
Max Temperature
21°C (70°F)
Water Temperature
21°C (70°F) *
Chance of Rain
14%
Precipitation
16 mm (0.6 in)
Rainy days
4 days
Sunshine
286 hours *
Percentage Sunshine
*
Daily Historical Temperatures
43-year average (1983-2025)
Based on our historical records, temperatures in Kos Town typically rise from around 23°C (73°F) at the start of May to approximately 26°C (79°F) by the end. Nights are pleasant, with lows typically ranging from 14°C (57°F) to 18°C (64°F).
Average temperatures in May
Daily Historical Precipitation
43-year average (1983-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Kos Town in May
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 May
According to our 43 years of weather records for Kos Town, the following extremes were recorded between 1983 and 2026.
- On May 17, 2020, temperatures climbed to 37°C (99°F), marking the warmest May day on record.
- Kos Town experienced its chilliest May day on May 3, 2026, reaching only 13°C (55°F).
- Kos Town registered its coldest May night on May 6, 2026, with temperatures dropping to 7°C (45°F).
Best Places in Greece in May
Find out more about the weather in Greece and which places have the best travel conditions in this month. See all of Greece in May →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Kos Town in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. With minimal rainfall expected, you can leave the rain gear at home. With water temperatures around 21°C (70°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in Kos Town in May
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.
