January weather forecastKillyleagh, United Kingdom

January

Weather in January

January, like December, is another chilly winter month in Killyleagh, United Kingdom, with an average temperature varying between 5.2°C (41.4°F) and 7.7°C (45.9°F).

Temperature

The arrival of January coincides with an average high-temperature of a still frosty 7.7°C (45.9°F), indicating a minimal shift from December's 8.5°C (47.3°F). Killyleagh's nighttime average temperature in January subtly descends to a wintry 5.2°C (41.4°F) from the daily highs.

Humidity

In Killyleagh, United Kingdom, the average relative humidity in January is 82%.

Rainfall

In Killyleagh, in January, during 13.6 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Killyleagh, during the entire year, the rain falls for 167.4 days and collects up to 395mm (15.55") of precipitation.

Snowfall

January through March, November and December are months with snowfall in Killyleagh, United Kingdom. In Killyleagh, in January, snow falls for 1.3 days, with typically accumulated 5mm (0.2") of snow. Throughout the year, in Killyleagh, there are 5.4 snowfall days, and 23mm (0.91") of snow is accumulated.

Daylight

The average length of the day in January is 8h and 1min.
On the first day of January in Killyleagh, United Kingdom, sunrise is at 8:43 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 4:58 pm GMT.

Sunshine

The months with the least sunshine are January, February and November, with an average of 4.1h of sunshine.

UV index

The months with the lowest UV index in Killyleagh are January through March and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in January interprets into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.

Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in January, in Killyleagh, records 7.7°C (45.9°F), while the low-temperature is 5.2°C (41.4°F).

In January, the average relative humidity in Killyleagh, United Kingdom, is 82%.

In Killyleagh, United Kingdom, in January, during 13.6 rainfall days, 26mm (1.02") of precipitation is typically accumulated.

In Killyleagh, in January, snow falls for 1.3 days, with typically accumulated 5mm (0.2") of snow.

The average day length in January in Killyleagh, United Kingdom, is 8h and 1min.

On the first day of January, sunrise is at 8:43 am and sunset at 4:08 pm. On the last day of the month, sunrise is at 8:13 am and sunset at 4:58 pm GMT.

January, February and November, with an average of 4.1h of sunshine, are months with the least sunshine in Killyleagh, United Kingdom.

In Killyleagh, the average sunshine duration in January is 4.1h.

January through March and December, with an average maximum UV index of 2, are months with the lowest UV index in Killyleagh, United Kingdom.

In January, the average daily maximum UV index in Killyleagh is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

8.5°C

7.7°C

7.5°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

30.7km/h

29.4km/h

28.6km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

15.5

14.6

12.8

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Killyleagh, United Kingdom

Average high temperature in January: 7.7°C

The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (7.5°C).

Average low temperature in January: 5.2°C

The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.9°C).

Average pressure in January
Killyleagh, United Kingdom

Average pressure in January: 1010.6mbar

The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).

Average wind speed in January
Killyleagh, United Kingdom

Average wind speed in January: 28km/h

The windiest month (with the highest average wind speed) is December (28.9km/h).
The calmest month (with the lowest average wind speed) is June (17.3km/h).

Average humidity in January
Killyleagh, United Kingdom

Average humidity in January: 82%

The months with the highest relative humidity are July and August (85%).
The months with the lowest relative humidity are March, April and November (81%).

Average rainfall in January
Killyleagh, United Kingdom

Average rainfall in January: 26mm

The wettest month (with the highest rainfall) is November (52mm).
The driest month (with the least rainfall) is May (20mm).

Average rainfall days in January
Killyleagh, United Kingdom

Average rainfall days in January: 13.6 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is September (10.8 days).

Average snowfall in January
Killyleagh, United Kingdom

Average snowfall in January: 5mm

The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in January
Killyleagh, United Kingdom

Average snowfall days in January: 1.3 days

The month with the highest number of snowfall days is February (1.6 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
Killyleagh, United Kingdom

Average daylight in January: 8h and 0min

The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).

Average sunshine in January: 4h and 6min

The months with the most sunshine are May and June (Average sunshine: 7h and 54min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).

Average sunshine days in January
Killyleagh, United Kingdom

Average sunshine days in January: 14.6 days

The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is August (9.5 days).

Average UV index in January
Killyleagh, United Kingdom

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, March and December (UV index 2).

Average cloud cover in January
Killyleagh, United Kingdom

Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are April and May (Cloud cover 49).

Average visibility in January
Killyleagh, United Kingdom

Average visibility in January: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).