The weather in Sully Island on saturday 21 December 2024
The average max temperature in Sully Island on 21 December is normally around 11°C. For comparison: the highest daytime temperature in the past 10 years was 13°C in 2015, while the lowest was 6°C in 2021.
There’s a very good chance of precipitation, as 9 out of the last 10 years had some, with an average of 4,9 mm on this day. The wind often comes from the Southwest with a maximum strength of 5 Bft.The UV index can reach 1.
20 December
Temperature on 21 December in Sully Island per year
This chart shows the average temperature on 21 December in Sully Island, measured in degrees Celsius, over the past years.
Precipitation on 21 December in Sully Island over the past years
This chart shows the total measured precipitation in millimetres on 21 December in Sully Island over the past years.
Average Weather in Sully Island by Month
Click on a month below to see detailed weather info for Sully Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Sully Island for all months at once
