Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
January
Weather in January
Temperature
The coldest period in Shannon tends to be January, when average temperatures fluctuate between a high of 7.8°C (46°F) and a low of 3.1°C (37.6°F).Humidity
In January, the average relative humidity in Shannon is 89%.Rainfall
In Shannon, in January, it is raining for 16.9 days, with typically 41mm (1.61") of accumulated precipitation. Throughout the year, there are 204.6 rainfall days, and 512mm (20.16") of precipitation is accumulated.Snowfall
Months with snowfall in Shannon are January through March and December. In Shannon, in January, during 0.8 snowfall days, 18mm (0.71") of snow is typically accumulated. Throughout the year, there are 3.2 snowfall days, and 57mm (2.24") of snow is accumulated.Sea temperature
In Shannon, Ireland, the average seawater temperature in January is 10.2°C (50.4°F).Note: In 10.2°C (50.4°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).
Daylight
In January, the average length of the day in Shannon, Ireland, is 8h and 16min.On the first day of the month, sunrise is at 8:47 am and sunset at 4:30 pm. On the last day of January, in Shannon, sunrise is at 8:19 am and sunset at 5:17 pm GMT.
Sunshine
January and December, with an average of 4h of sunshine, are months with the least sunshine in Shannon.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Shannon. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index, 2 in January, converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. To protect against the Sun's most potent rays, avoid direct exposure around midday. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Shannon?
What are January temperatures in Shannon?
What is the average humidity in January in Shannon?
How much does it rain in Shannon in January?
How much does it snow in Shannon in January?
What is the sea water temperature in January in Shannon?
How many hours of daylight does Shannon have in January?
When is the sunrise / sunset in January in Shannon?
What is the month with the least sunshine in Shannon?
How many hours of sunshine does Shannon have in January?
What are the months with the lowest UV index in Shannon?
What is the UV index reading in January in Shannon?
Average temperature in January
Shannon, Ireland
- Average high temperature in January: 7.8°C
The warmest month (with the highest average high temperature) is July (18°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in January: 3.1°C
The month with the highest average low temperature is July (11.1°C).
The coldest months (with the lowest average low temperature) are February and March (2.9°C).
Average pressure in January
Shannon, Ireland
- Average pressure in January: 1011.4mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in January
Shannon, Ireland
- Average wind speed in January: 18.9km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest month (with the lowest average wind speed) is July (13.3km/h).
Average humidity in January
Shannon, Ireland
- Average humidity in January: 89%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is April (84%).
Average rainfall in January
Shannon, Ireland
- Average rainfall in January: 41mm
The wettest month (with the highest rainfall) is December (56mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in January
Shannon, Ireland
- Average rainfall days in January: 16.9 days
The month with the highest number of rainy days is August (20.4 days).
The month with the least rainy days is February (14.8 days).
Average snowfall in January
Shannon, Ireland
- Average snowfall in January: 18mm
The month with the highest snowfall is December (21mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Shannon, Ireland
- Average snowfall days in January: 0.8 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average sea temperature in January
Shannon, Ireland
- Average sea temperature in January: 10.2°C
The best month for swimming (with the highest average sea temperature) is August (15.8°C).
The coldest month (with the lowest average sea temperature) is March (9.4°C).
Average daylight in January /
Average sunshine in January
Shannon, Ireland
- Average daylight in January: 8h and 2min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in January: 4h and 0min
The month with the most sunshine is June (Average sunshine: 7h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).
Average sunshine days in January
Shannon, Ireland
- Average sunshine days in January: 11.3 days
The month with the most sunshine days is December (12.6 days).
The month with the least sunshine days is July (7.6 days).
Average UV index in January
Shannon, Ireland
- Average UV index in January: 2
The months with the highest UV index are May and June (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in January
Shannon, Ireland
- Average cloud cover in January: 62
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in January
Shannon, Ireland
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, November and December (9km).
The months with the lowest visibility are May, June, July, August, September and October (8km).
