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 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
Weather in January
Temperature
The transition into January reveals an average high-temperature of a still chilly 8.8°C (47.8°F), mirroring a close resemblance to December. Castlebay maintains a near steady average temperature of 6.8°C (44.2°F) during the nights of January, demonstrating little drop from daytime highs.Humidity
The average relative humidity in January is 76%.Rainfall
In Castlebay, in January, it is raining for 23.7 days, with typically 80mm (3.15") of accumulated precipitation. Throughout the year, there are 242.8 rainfall days, and 799mm (31.46") of precipitation is accumulated.Snowfall
Months with snowfall are January and February. January is the first month it typically snows in Castlebay. Throughout January, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. In Castlebay, during the entire year, snow falls for 0.6 days and aggregates up to 6mm (0.24") of snow.Daylight
In Castlebay, the average length of the day in January is 7h and 33min.On the first day of the month, sunrise is at 9:07 am and sunset at 3:59 pm. On the last day of January, sunrise is at 8:31 am and sunset at 4:55 pm GMT.
Sunshine
January has the least sunshine of the year in Castlebay, with an average of 2.6h of sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in January converts into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What are January temperatures in Castlebay?
What is the average humidity in January in Castlebay?
How much does it rain in Castlebay in January?
When does it start to snow in Castlebay?
What is the average length of the day in January in Castlebay?
What time are sunrise and sunset in January in Castlebay?
What is the month with the least sunshine in Castlebay?
How long on average sun shines in January in Castlebay?
What are the months with the lowest UV index in Castlebay?
How high is the UV index in January in Castlebay?
Average temperature in January
Castlebay, United Kingdom
- Average high temperature in January: 8.8°C
The warmest month (with the highest average high temperature) is August (14.5°C).
The months with the lowest average high temperature are February and March (8.2°C).
- Average low temperature in January: 6.8°C
The month with the highest average low temperature is August (13°C).
The coldest month (with the lowest average low temperature) is February (6.3°C).
Average pressure in January
Castlebay, United Kingdom
- Average pressure in January: 1005.9mbar
The month with the highest atmospheric pressure is May (1014.3mbar).
The month with the lowest atmospheric pressure is November (1004.9mbar).
Average wind speed in January
Castlebay, United Kingdom
- Average wind speed in January: 42.4km/h
The windiest month (with the highest average wind speed) is January (42.4km/h).
The calmest month (with the lowest average wind speed) is June (23.9km/h).
Average humidity in January
Castlebay, United Kingdom
- Average humidity in January: 76%
The month with the highest relative humidity is July (85%).
The months with the lowest relative humidity are November and December (75%).
Average rainfall in January
Castlebay, United Kingdom
- Average rainfall in January: 80mm
The wettest month (with the highest rainfall) is December (87mm).
The driest month (with the least rainfall) is April (31mm).
Average rainfall days in January
Castlebay, United Kingdom
- Average rainfall days in January: 23.7 days
The month with the highest number of rainy days is January (23.7 days).
The month with the least rainy days is April (15.8 days).
Average snowfall in January
Castlebay, United Kingdom
- Average snowfall in January: 1mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in January
Castlebay, United Kingdom
- Average snowfall days in January: 0.2 days
The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are May, June, July, August, September, October, November and December (0 days).
Average daylight in January /
Average sunshine in January
Castlebay, United Kingdom
- Average daylight in January: 7h and 3min
The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 54min).
- Average sunshine in January: 2h and 4min
The month with the most sunshine is June (Average sunshine: 8h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in January
Castlebay, United Kingdom
- Average sunshine days in January: 4.7 days
The month with the most sunshine days is April (11.7 days).
The month with the least sunshine days is January (4.7 days).
Average UV index in January
Castlebay, United Kingdom
- Average UV index in January: 2
The months with the highest UV index are May, June, July and September (UV index 4).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in January
Castlebay, United Kingdom
- Average cloud cover in January: 71
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is April (Cloud cover 54).
Average visibility in January
Castlebay, United Kingdom
- Average visibility in January: 9km
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (10km).
The months with the lowest visibility are January and July (9km).
Castlebay, United Kingdom
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