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
January
Weather in January
Temperature
January and February are identified as the coldest months, with an average high-temperature of 7.3°C (45.1°F).Humidity
The months with the highest humidity are January and December, with an average relative humidity of 87%.Rainfall
In Ystradgynlais, during January, the rain falls for 16.1 days and regularly aggregates up to 48mm (1.89") of precipitation. In Ystradgynlais, during the entire year, the rain falls for 181.3 days and collects up to 568mm (22.36") of precipitation.Snowfall
Months with snowfall in Ystradgynlais are January through March and December. January is the month with the most snowfall in Ystradgynlais. Snow falls for 2 days and accumulates 12mm (0.47") of snow.Daylight
In January, the average length of the day is 8h and 25min.On the first day of January in Ystradgynlais, sunrise is at 8:21 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:00 pm GMT.
Sunshine
With an average of 3.7h of sunshine, January has the least sunshine of the year in Ystradgynlais, United Kingdom.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ystradgynlais. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In January, an average UV index of 2 transforms into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest in Ystradgynlais?
What is the temperature in January in Ystradgynlais?
What are the most humid months in Ystradgynlais?
What is the average humidity in January in Ystradgynlais?
How much does it rain in Ystradgynlais in January?
When does it snow the most in Ystradgynlais?
How much does it snow in Ystradgynlais in January?
How many hours of daylight does Ystradgynlais have in January?
When are sunrise and sunset in January in Ystradgynlais?
What is the month with the least sunshine in Ystradgynlais?
How many hours of sunshine does Ystradgynlais have in January?
What is the month with the lowest UV index in Ystradgynlais?
What is the UV index reading in January in Ystradgynlais?
Average temperature in January
Ystradgynlais, United Kingdom
- Average high temperature in January: 7.3°C
The warmest month (with the highest average high temperature) is July (18.2°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in January: 3.9°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).
Average pressure in January
Ystradgynlais, United Kingdom
- Average pressure in January: 1013.7mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in January
Ystradgynlais, United Kingdom
- Average wind speed in January: 21.9km/h
The windiest month (with the highest average wind speed) is December (22.4km/h).
The calmest month (with the lowest average wind speed) is June (14.9km/h).
Average humidity in January
Ystradgynlais, United Kingdom
- Average humidity in January: 87%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (81%).
Average rainfall in January
Ystradgynlais, United Kingdom
- Average rainfall in January: 48mm
The wettest months (with the highest rainfall) are November and December (66mm).
The driest month (with the least rainfall) is May (31mm).
Average rainfall days in January
Ystradgynlais, United Kingdom
- Average rainfall days in January: 16.1 days
The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (12.6 days).
Average snowfall in January
Ystradgynlais, United Kingdom
- Average snowfall in January: 12mm
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Ystradgynlais, United Kingdom
- Average snowfall days in January: 2 days
The month with the highest number of snowfall days is January (2 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
Ystradgynlais, United Kingdom
- Average daylight in January: 8h and 2min
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 4min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in January
Ystradgynlais, United Kingdom
- Average sunshine days in January: 10.5 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in January
Ystradgynlais, 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, November and December (UV index 2).
Average cloud cover in January
Ystradgynlais, United Kingdom
- Average cloud cover in January: 62
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 47).
Average visibility in January
Ystradgynlais, United Kingdom
- 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).
