Normal weather in St Mary's in December
The weather in St Mary's in December has an average temperature of around 12°C during the day. On average, December sees 79 mm of rain in St Mary's. The wind speed is 6 Beaufort and mainly comes from Southwest.
After November, December in St Mary's starts with a temperature of 11°C and ends around January at 12°C.
December averages for St Mary's
 Average temperature | 12°C |
 Highest daytime temperature | 13°C |
| Lowest daytime temperature | 11°C |
 Total rainfall | 79 mm |
| Rainy days | 20 days |
Temperature per day in December in St Mary's
This graph shows the average daily maximum temperatures in December in St Mary's, indicated in degrees Celsius.
Precipitation per day in December in St Mary's
This graph shows the average daily precipitation in December in St Mary's, indicated in millimeters.
UV index per day in December in St Mary's
This graph shows the average daily UV index in December in St Mary's.
Yearly temperature in December in St Mary's
This graph shows the average yearly temperature in December in St Mary's, measured in degrees Celsius, over the past years.
Yearly total precipitation in December in St Mary's
This graph shows the average yearly precipitation in millimeters in December in St Mary's, over the past years.
Average daily weather in December
Click on a day to get more information about the average weather on that day.
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Average weather in St Mary's per month
Click on a month below to see in detail how the weather typically is in St Mary's and what to expect. Based on the historical weather data of St Mary's, you can view the average temperature, precipitation, wind, and UV index for each day of the month.