January weather forecast
Derrymullen, Ireland

January

Weather in January

January, like December, is a frosty winter month in Derrymullen, Ireland, with an average temperature ranging between max 6.6°C (43.9°F) and min 1.9°C (35.4°F).

Temperature

January brings the lowest temperatures, with an average high of 6.6°C (43.9°F) and an average low of 1.9°C (35.4°F).

Humidity

In January, the average relative humidity is 91%.

Rainfall

January and October are months with the least rain in Derrymullen when the rain falls for 10.5 days and typically aggregates up to 13mm (0.51") of rain.

Snowfall

January through April, November and December are months with snowfall. The months with the most snowfall are January and February, with an average 15mm (0.59") of accumulated snow.

Daylight

In Derrymullen, the average length of the day in January is 8h and 11min.
On the first day of January in Derrymullen, sunrise is at 8:42 am and sunset at 4:19 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 5:07 pm GMT.

Sunshine

In January, the average sunshine is 3.8h.

UV index

The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 2 in January leads to these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What time of the year is the coldest in Derrymullen?
In Derrymullen, January records the average lowest temperatures, peaking at 6.6°C (43.9°F) and reaching a low of 1.9°C (35.4°F).
How cold is it in Derrymullen in January?
The average high-temperature and low-temperature in Derrymullen, Ireland, during January are 6.6°C (43.9°F) and 1.9°C (35.4°F) respectively.
What is the average humidity in January in Derrymullen?
The average relative humidity in January in Derrymullen is 91%.
What is the driest month in Derrymullen?
January and October are months with the least rain when the rain falls for 10.5 days and typically aggregates up to 13mm (0.51") of rain.
How many days does it rain in January in Derrymullen?
In Derrymullen, during January, the rain falls for 10.5 days and regularly aggregates up to 13mm (0.51") of precipitation.
When does it snow the most in Derrymullen?
The months with the most snowfall in Derrymullen are January and February, with an average 15mm (0.59") of accumulated snow.
How many days does it snow in January in Derrymullen?
In January, in Derrymullen, Ireland, it is snowing for 2.3 days. Throughout January, 15mm (0.59") of snow is accumulated.
What is the average length of the day in January in Derrymullen?
The average day length in January in Derrymullen is 8h and 11min.
When is the sunrise / sunset in January in Derrymullen?
In January, on the first day of the month, sunrise is at 8:42 am and sunset at 4:19 pm. On the last day of the month, in Derrymullen, Ireland, sunrise is at 8:13 am and sunset at 5:07 pm GMT.
How long on average sun shines in January in Derrymullen?
The average sunshine duration in January in Derrymullen, Ireland, is 3.8h.
When is the lowest UV index in Derrymullen?
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
How high is the UV index in January in Derrymullen?
In January, the average daily maximum UV index in Derrymullen is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in January - Derrymullen, Ireland
Average temperature in January
Derrymullen, Ireland
  • Average high temperature in January: 6.6°C

The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (6.6°C).

  • Average low temperature in January: 1.9°C

The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).

Average pressure in January - Derrymullen, Ireland
Average pressure in January
Derrymullen, 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 - Derrymullen, Ireland
Average wind speed in January
Derrymullen, Ireland
  • Average wind speed in January: 19.7km/h

The windiest month (with the highest average wind speed) is January (19.7km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).

Average humidity in January - Derrymullen, Ireland
Average humidity in January
Derrymullen, Ireland
  • Average humidity in January: 91%

The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and May (86%).

Average rainfall in January - Derrymullen, Ireland
Average rainfall in January
Derrymullen, Ireland
  • Average rainfall in January: 13mm

The wettest month (with the highest rainfall) is August (26mm).
The driest months (with the least rainfall) are January and October (13mm).

Average rainfall days in January - Derrymullen, Ireland
Average rainfall days in January
Derrymullen, Ireland
  • Average rainfall days in January: 10.5 days

The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is October (9.8 days).

Average snowfall in January - Derrymullen, Ireland
Average snowfall in January
Derrymullen, Ireland
  • Average snowfall in January: 15mm

The months with the highest snowfall are January and February (15mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

Average snowfall days in January - Derrymullen, Ireland
Average snowfall days in January
Derrymullen, Ireland
  • Average snowfall days in January: 2.3 days

The month with the highest number of snowfall days is February (2.7 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 - Derrymullen, Ireland
Average daylight in January /
Average sunshine in January
Derrymullen, Ireland
  • Average daylight in January: 8h and 1min

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: 3h and 5min

The month with the most sunshine is April (Average sunshine: 6h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in January - Derrymullen, Ireland
Average sunshine days in January
Derrymullen, Ireland
  • Average sunshine days in January: 15.7 days

The month with the most sunshine days is December (15.8 days).
The month with the least sunshine days is July (7.8 days).

Average UV index in January - Derrymullen, Ireland
Average UV index in January
Derrymullen, Ireland
  • Average UV index in January: 2

The months with the highest UV index are May, June and August (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 - Derrymullen, Ireland
Average cloud cover in January
Derrymullen, Ireland
  • Average cloud cover in January: 63

The month with the most cloud cover is July (Cloud cover 69).
The month with the least cloud cover is April (Cloud cover 58).

Average visibility in January - Derrymullen, Ireland
Average visibility in January
Derrymullen, Ireland
  • Average visibility in January: 9km

The months with the highest visibility are January, February, March and December (9km).
The month with the lowest visibility is July (7km).

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