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
January and February are identified as the coldest months, with an average high-temperature of -0.3°C (31.5°F).Humidity
The months with the highest humidity are January and February, with an average relative humidity of 88%.Rainfall
In January, the rain falls for 8.1 days. Throughout January, 17mm (0.67") of precipitation is accumulated. In Roja, during the entire year, the rain falls for 139.3 days and collects up to 295mm (11.61") of precipitation.Snowfall
January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 12.9 days and accumulates 45mm (1.77") of snow.Daylight
In Roja, the average length of the day in January is 7h and 26min.On the first day of the month, sunrise is at 09:10 and sunset at 15:53. On the last day of January, in Roja, sunrise is at 08:32 and sunset at 16:51 EET.
Sunshine
In January, the average sunshine in Roja is 2.5h.UV index
The months with the lowest UV index in Roja, Latvia, are January, March and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 1 during January translates into the following directions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What month is the coldest in Roja?
How cold is it in Roja in January?
What is the most humid month in Roja?
What is the average humidity in January in Roja?
How many days does it rain in January in Roja?
When does it snow the most in Roja?
How many days does it snow in January in Roja?
How many hours of daylight does Roja have in January?
When is the sunrise / sunset in January in Roja?
How long on average sun shines in January in Roja?
When is the lowest UV index in Roja?
What is the UV index intensity in January in Roja?
Average temperature in January
Roja, Latvia
- Average high temperature in January: -0.3°C
The warmest month (with the highest average high temperature) is July (20.6°C).
The months with the lowest average high temperature are January and February (-0.3°C).
- Average low temperature in January: -3°C
The months with the highest average low temperature are July and August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (-3°C).
Average pressure in January
Roja, Latvia
- Average pressure in January: 1013.1mbar
The month with the highest atmospheric pressure is October (1015.6mbar).
The month with the lowest atmospheric pressure is December (1010.5mbar).
Average wind speed in January
Roja, Latvia
- Average wind speed in January: 22km/h
The windiest month (with the highest average wind speed) is December (24.4km/h).
The calmest month (with the lowest average wind speed) is May (15.5km/h).
Average humidity in January
Roja, Latvia
- Average humidity in January: 88%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are May, June, July and August (75%).
Average rainfall in January
Roja, Latvia
- Average rainfall in January: 17mm
The wettest month (with the highest rainfall) is July (43mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in January
Roja, Latvia
- Average rainfall days in January: 8.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (7 days).
Average snowfall in January
Roja, Latvia
- Average snowfall in January: 45mm
The month with the highest snowfall is January (45mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in January
Roja, Latvia
- Average snowfall days in January: 12.9 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Roja, Latvia
- Average daylight in January: 7h and 2min
The month with the longest days is June (Average daylight: 17h and 54min).
The month with the shortest days is December (Average daylight: 6h and 42min).
- Average sunshine in January: 2h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 12min).
Average sunshine days in January
Roja, Latvia
- Average sunshine days in January: 12.3 days
The month with the most sunshine days is May (16.5 days).
The month with the least sunshine days is July (11 days).
Average UV index in January
Roja, Latvia
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, March and December (UV index 1).
Average cloud cover in January
Roja, Latvia
- Average cloud cover in January: 74
The months with the most cloud cover are January and December (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in January
Roja, Latvia
- Average visibility in January: 9km
The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).
Roja, Latvia
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