IrelandThe weather in December in Saint Johns Port
It's cold in December in Saint Johns Port with an average temperature of 9°C. Temperatures this month range from a low of 7°C to a high of 11°C. At night, you can expect temperatures between 3°C and 6°C.
Looking for sun? December isn’t a good month to be in Saint Johns Port. There’s too much chance of rain this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in December for Saint Johns Port, Ireland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 15°C in 2015, Saint Johns Port reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was -1°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of -5°C to a highest value of 11°C.
Precipitation and snowfall
In December, there is an average of 132 mm of precipitation, spread over 16 days. Of the total precipitation, about 1,6 cm falls as snow in December. The wind speed is around 5 Bft, mostly coming from the South.
Daily weather in December for Saint Johns Port
Click on any day in December to get detailed info about the usual weather on that day in Saint Johns Port. Check out the historical temperatures and precipitation over the past 10 years on this day.
December weather comparison
| Saint Johns Port | New York | |
|---|---|---|
| Average temperature | 9°C | 9°C |
| Max. temperature | 11°C | 12°C |
| Min. temperature | 3°C | -5°C |
| Total precipitation | 132 mm | 133 mm |
| Rainy days | 16 days | 17 days |
| Total snowfall | 1,6 cm | 9,7 cm |
| Snowy days | 1 day | 3 days |
Start of December
The month of December starts in Saint Johns Port with cold temps, averaging around 9°C during the day and nights around 5°C.
Mid December
By mid-December, daytime temps rise to around 10°C, with nights around 5°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of December
By the end of December, the average daytime temperature in Saint Johns Port is around 9°C, while nighttime temps are about 5°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
UV index
The UV index is a maximum of 1 this month. That's a low value on the intensity scale of 1 to 11. The risk of sunburn is minimal at this time.
Check out the climate of Saint Johns Port for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in December in Saint Johns Port, Ireland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in December in Saint Johns Port
Temperature in December in Saint Johns Port over the years
Precipitation charts
These charts show the average amount of precipitation in December in Saint Johns Port, Ireland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in December in Saint Johns Port
Total precipitation in December in Saint Johns Port over the years
Daily Snowfall in December in Saint Johns Port
Snowfall in December in Saint Johns Port per year
Daily UV index in December in Saint Johns Port
This chart shows the average daily UV index in December in Saint Johns Port, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in December in Saint Johns Port
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Average weather in Saint Johns Port by month
Click on a month below to see detailed weather info for Saint Johns Port. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.