🇬🇷 Weather in Kos Town in May
This is what the weather in Kos Town (Kos, Greece) was like in May in 2017–2026.
Key facts at a glance
Avg. daytime high
24.1 °C
23.0 °C – 26.3 °C
Avg. night-time low
17.9 °C
17.0 °C – 20.1 °C
Avg. rain days in period
4.2
14 % of days · ≥ 1.0 mm
Avg. precipitation in period
19.0 mm
0.9 mm – 50.2 mm
Avg. cloud cover
36 %
This data source has no sunshine hours – average cloud cover shown instead.
Avg. sea temperature
19.8 °C
Sea point approx. 3 km from the location
Extremes: Highest temperature 37.9 °C (17 May 2020) · Lowest temperature 11.3 °C (4 May 2026) · Avg. daily peak wind 21 km/h
Weather mix of all days
- 147Sunny
- 91Partly cloudy
- 30Cloudy
- 32Light rain
- 10Rain
Summary
- On average 24.1 °C during the day and 17.9 °C at night.
- On average 4.2 rain days (Rain day = at least 1.0 mm of precipitation) with 19.0 mm of precipitation in total.
- In 1 of 10 years there was not a single rain day.
- The sea averaged 19.8 °C.
- Prevailing: Sunny.
- Warmest year: 2018 (avg. 26.3 °C), coolest: 2025 (avg. 23.0 °C).
- Wettest year: 2023 (50.2 mm), driest: 2021 (0.9 mm).
- Extremes: 37.9 °C on 17 May 2020 and 11.3 °C on 4 May 2026.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Precipitation & rain days
Year by year
2026
Avg. max23.0°Avg. min17.0°- Rain days
- 4 Rain days
- Precipitation
- 18.7 mm
- Avg. cloud cover
- 35 % cloudy
- Sea temperature
- 19.6 °C
Max 28.6 °C · Min 11.3 °C
2025
Avg. max23.0°Avg. min17.4°- Rain days
- 5 Rain days
- Precipitation
- 28.6 mm
- Avg. cloud cover
- 41 % cloudy
- Sea temperature
- 19.4 °C
Max 27.2 °C · Min 13.8 °C
2024
Avg. max24.3°Avg. min18.1°- Rain days
- 5 Rain days
- Precipitation
- 17.4 mm
- Avg. cloud cover
- 33 % cloudy
- Sea temperature
- 20.1 °C
Max 29.1 °C · Min 14.6 °C
2023
Avg. max23.2°Avg. min17.1°- Rain days
- 10 Rain days
- Precipitation
- 50.2 mm
- Avg. cloud cover
- 52 % cloudy
- Sea temperature
- 19.0 °C
Max 31.1 °C · Min 13.7 °C
2022
Avg. max24.6°Avg. min17.5°- Rain days
- 1 Rain days
- Precipitation
- 3.3 mm
- Avg. cloud cover
- 26 % cloudy
- Sea temperature
- 19.3 °C
Max 31.8 °C · Min 13.1 °C
2021
Avg. max25.0°Avg. min18.2°- Rain days
- 0 Rain days
- Precipitation
- 0.9 mm
- Avg. cloud cover
- 26 % cloudy
- Sea temperature
- 19.8 °C
Max 32.9 °C · Min 15.0 °C
2020
Avg. max25.2°Avg. min18.0°- Rain days
- 3 Rain days
- Precipitation
- 12.1 mm
- Avg. cloud cover
- 31 % cloudy
- Sea temperature
- 19.6 °C
Max 37.9 °C · Min 14.7 °C
2019
Avg. max23.2°Avg. min17.6°- Rain days
- 1 Rain days
- Precipitation
- 5.4 mm
- Avg. cloud cover
- 41 % cloudy
- Sea temperature
- 19.9 °C
Max 28.5 °C · Min 14.4 °C
2018
Avg. max26.3°Avg. min20.1°- Rain days
- 7 Rain days
- Precipitation
- 25.2 mm
- Avg. cloud cover
- 35 % cloudy
- Sea temperature
- 21.5 °C
Max 31.1 °C · Min 17.1 °C
2017
Avg. max23.4°Avg. min17.9°- Rain days
- 6 Rain days
- Precipitation
- 28.5 mm
- Avg. cloud cover
- 39 % cloudy
- Sea temperature
- 19.7 °C
Max 27.5 °C · Min 15.6 °C
Frequently asked questions
- How warm is it in Kos Town in May?
- Daytime highs averaged 24.1 °C, night-time lows 17.9 °C. The highest value of the past 10 years was 37.9 °C (17 May 2020), the lowest 11.3 °C (4 May 2026).
- How often does it rain in Kos Town in May?
- On average there were 4.2 rain days (at least 1 mm) with 19.0 mm of precipitation in total. In 1 of 10 years there was no rain day at all.
- How warm is the sea in Kos Town in May?
- The sea temperature averaged 19.8 °C (open-sea point approx. 3 km from the town).
Check your exact travel dates
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Other destinations in May
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Sea point approx. 3 km from the location (36.920, 27.300)
- Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)