The weather in Syros on tuesday 20 May 2025
The average max temperature in Syros on 20 May is normally around 25°C. For comparison: the highest daytime temperature in the past 10 years was 30°C in 2020, while the lowest was 20°C in 2022.
There’s no chance of precipitation, as there’s been no record of it on this day in the past 10 years. The wind often comes from the Southwest with a maximum strength of 5 Bft.The UV index can reach 9.
Temperature on 20 May in Syros per year
This chart shows the average temperature on 20 May in Syros, measured in degrees Celsius, over the past years.
Precipitation on 20 May in Syros over the past years
This chart shows the total measured precipitation in millimetres on 20 May in Syros over the past years.
Average Weather in Syros by Month
Click on a month below to see detailed weather info for Syros. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.