January weather forecastDalkey, Ireland
January
Weather in January
January, the same as December, in Dalkey, Ireland, is another chilly winter month, with an average temperature fluctuating between 7.8°C (46°F) and 4.5°C (40.1°F).Temperature
January and February, with an average high-temperature of 7.8°C (46°F), are the coldest months.Humidity
In Dalkey, the average relative humidity in January is 84%.Rainfall
In Dalkey, during January, the rain falls for 16.6 days and regularly aggregates up to 41mm (1.61") of precipitation. Throughout the year, in Dalkey, Ireland, there are 200.5 rainfall days, and 530mm (20.87") of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Dalkey. In Dalkey, in January, during 1.3 snowfall days, 5mm (0.2") of snow is typically accumulated. Throughout the year, in Dalkey, there are 4.6 snowfall days, and 24mm (0.94") of snow is accumulated.Daylight
In Dalkey, the average length of the day in January is 8h and 11min.On the first day of the month, sunrise is at 8:39 am and sunset at 4:16 pm. On the last day of January, in Dalkey, sunrise is at 8:10 am and sunset at 5:04 pm GMT.
Sunshine
In Dalkey, the average sunshine in January is 4.4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: In January, the UV index of 2 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Dalkey, Ireland
- Average high temperature in January: 7.8°C
The warmest months (with the highest average high temperature) are July and August (16.9°C).
The months with the lowest average high temperature are January and February (7.8°C).
- Average low temperature in January: 4.5°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).
Average pressure in January
Dalkey, Ireland
- Average pressure in January: 1011.6mbar
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
Dalkey, Ireland
- Average wind speed in January: 25.8km/h
The windiest month (with the highest average wind speed) is December (25.9km/h).
The calmest month (with the lowest average wind speed) is July (15.9km/h).
Average humidity in January
Dalkey, Ireland
- Average humidity in January: 84%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is March (82%).
Average rainfall in January
Dalkey, Ireland
- Average rainfall in January: 41mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in January
Dalkey, Ireland
- Average rainfall days in January: 16.6 days
The month with the highest number of rainy days is July (20.4 days).
The months with the least rainy days are March and September (14.9 days).
Average snowfall in January
Dalkey, Ireland
- Average snowfall in January: 5mm
The month with the highest snowfall is December (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in January
Dalkey, Ireland
- Average snowfall days in January: 1.3 days
The months with the highest number of snowfall days are January and February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in January /
Average sunshine in January
Dalkey, Ireland
- Average daylight in January: 8h and 12min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in January: 4h and 24min
The month with the most sunshine is May (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 4h and 18min).
Average sunshine days in January
Dalkey, Ireland
- Average sunshine days in January: 10.9 days
The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is July (7.2 days).
Average UV index in January
Dalkey, 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
Dalkey, Ireland
- Average cloud cover in January: 55
The months with the most cloud cover are February and November (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in January
Dalkey, Ireland
- Average visibility in January: 10km
The months with the highest visibility are January, March, October and November (10km).
The months with the lowest visibility are February, April, May, June, July, August, September and December (9km).
