The weather in Sifnos on tuesday 21 October 2025
The average max temperature in Sifnos on 21 October is normally around 23°C. For comparison, the highest daytime temperature in the past 10 years was 26°C in 2023, while the lowest was 20°C in 2022.
There’s a very small chance of precipitation, as only 1 of the past 10 years saw 8 mm of precipitation on this day.The wind often comes from the South with a maximum speed of 4 Bft.The UV index can reach 6.
Temperature on 21 October in Sifnos per year
This chart shows the average temperature on 21 October in Sifnos, measured in degrees Celsius, over the past years.
Precipitation on 21 October in Sifnos over the past years
This chart shows the total measured precipitation in millimeters on 21 October in Sifnos over the past years.
Average weather in Sifnos by month
Click on a month below to see detailed weather info for Sifnos. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.