January weather forecastRerrin, Ireland
January
Weather in January
January, the same as December, in Rerrin, Ireland, is another chilly winter month, with an average temperature varying between 8.8°C (47.8°F) and 5.9°C (42.6°F).Temperature
The shift into January records an average high-temperature of a still chilly 8.8°C (47.8°F), subtly varied from December's 9.2°C (48.6°F). Nighttime temperature reflects an average dip to a cold 5.9°C (42.6°F) in January, subtly cooler than its daytime highs.Humidity
The average relative humidity in January is 84%.Rainfall
In Rerrin, during January, the rain falls for 21.6 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, in Rerrin, there are 224 rainfall days, and 816mm (32.13") of precipitation is accumulated.Snowfall
January through April and December are months with snowfall in Rerrin. January is the month with the most snowfall. Snow falls for 0.5 days and accumulates 8mm (0.31") of snow.Daylight
In January, the average length of the day in Rerrin is 8h and 26min.On the first day of January in Rerrin, sunrise is at 8:45 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 8:19 am and sunset at 5:25 pm GMT.
Sunshine
The average sunshine in January is 3.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rerrin. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In January, a daily UV index of 2 turns into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Rerrin, Ireland
- Average high temperature in January: 8.8°C
The warmest month (with the highest average high temperature) is July (16.6°C).
The month with the lowest average high temperature is February (8.4°C).
- Average low temperature in January: 5.9°C
The month with the highest average low temperature is July (12.7°C).
The coldest months (with the lowest average low temperature) are February and March (5.4°C).
Average pressure in January
Rerrin, Ireland
- Average pressure in January: 1012.2mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.8mbar).
Average wind speed in January
Rerrin, Ireland
- Average wind speed in January: 25.1km/h
The windiest month (with the highest average wind speed) is December (25.7km/h).
The calmest month (with the lowest average wind speed) is July (16.2km/h).
Average humidity in January
Rerrin, Ireland
- Average humidity in January: 84%
The months with the highest relative humidity are July, August and September (86%).
The month with the lowest relative humidity is April (81%).
Average rainfall in January
Rerrin, Ireland
- Average rainfall in January: 81mm
The wettest month (with the highest rainfall) is December (106mm).
The driest month (with the least rainfall) is May (45mm).
Average rainfall days in January
Rerrin, Ireland
- Average rainfall days in January: 21.6 days
The month with the highest number of rainy days is January (21.6 days).
The month with the least rainy days is September (16 days).
Average snowfall in January
Rerrin, Ireland
- Average snowfall in January: 8mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Rerrin, Ireland
- Average snowfall days in January: 0.5 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Rerrin, Ireland
- Average daylight in January: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January: 3h and 36min
The month with the most sunshine is June (Average sunshine: 7h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in January
Rerrin, Ireland
- Average sunshine days in January: 7.2 days
The month with the most sunshine days is April (11.5 days).
The month with the least sunshine days is February (7 days).
Average UV index in January
Rerrin, Ireland
- Average UV index in January: 2
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in January
Rerrin, Ireland
- Average cloud cover in January: 66
The months with the most cloud cover are January and December (Cloud cover 66).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in January
Rerrin, Ireland
- Average visibility in January: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





