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 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
The average high-temperature during January registers at a hot 30°C (86°F), closely corresponding to the preceding month. January nights bring a pronounced temperature shift, with averages hovering around a comfortable 17.7°C (63.9°F).Heat index
The heat index in January is appraised at a hot 33°C (91.4°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.Consider that heat index readings are for situations in the shade and light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
January through March, with an average relative humidity of 59%, are the least humid months.Rainfall
January and February are months with the least rain in Santo Tomás La Unión, Guatemala, when the rain falls for 4.8 days and typically aggregates up to 7mm (0.28") of rain.Daylight
In Santo Tomás La Unión, the average length of the day in January is 11h and 23min.On the first day of January in Santo Tomás La Unión, sunrise is at 06:30 and sunset at 17:47. On the last day of the month, sunrise is at 06:34 and sunset at 18:04 CST.
Sunshine
The average sunshine in January is 8.2h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index in Santo Tomás La Unión. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 6 in January translates into these instructions:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Santo Tomás La Unión in January?
What are the least humid months in Santo Tomás La Unión?
What is the average humidity in January in Santo Tomás La Unión?
What is the driest month in Santo Tomás La Unión?
How many days does it rain in January in Santo Tomás La Unión?
How many hours of daylight does Santo Tomás La Unión have in January?
What time are sunrise and sunset in January in Santo Tomás La Unión?
How long on average sun shines in January in Santo Tomás La Unión?
What are the months with the highest UV index in Santo Tomás La Unión?
What are the months with the lowest UV index in Santo Tomás La Unión?
How high is the UV index in January in Santo Tomás La Unión?
Average temperature in January
Santo Tomás La Unión, Guatemala
- Average high temperature in January: 30°C
The warmest month (with the highest average high temperature) is March (31.5°C).
The month with the lowest average high temperature is September (28.5°C).
- Average low temperature in January: 17.7°C
The month with the highest average low temperature is May (20.5°C).
The coldest month (with the lowest average low temperature) is December (17.6°C).
Average pressure in January
Santo Tomás La Unión, Guatemala
- Average pressure in January: 1014.5mbar
The month with the highest atmospheric pressure is January (1014.5mbar).
The month with the lowest atmospheric pressure is October (1012.2mbar).
Average wind speed in January
Santo Tomás La Unión, Guatemala
- Average wind speed in January: 6.5km/h
The windiest month (with the highest average wind speed) is March (6.6km/h).
The calmest month (with the lowest average wind speed) is May (5.1km/h).
Average humidity in January
Santo Tomás La Unión, Guatemala
- Average humidity in January: 59%
The months with the highest relative humidity are September and October (79%).
The months with the lowest relative humidity are January, February and March (59%).
Average rainfall in January
Santo Tomás La Unión, Guatemala
- Average rainfall in January: 7mm
The wettest month (with the highest rainfall) is May (274mm).
The driest months (with the least rainfall) are January and February (7mm).
Average rainfall days in January
Santo Tomás La Unión, Guatemala
- Average rainfall days in January: 4.8 days
The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is January (4.8 days).
Average daylight in January /
Average sunshine in January
Santo Tomás La Unión, Guatemala
- Average daylight in January: 11h and 2min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in January: 8h and 1min
The months with the most sunshine are April and July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 24min).
Average sunshine days in January
Santo Tomás La Unión, Guatemala
- Average sunshine days in January: 24.4 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is September (1.5 days).
Average UV index in January
Santo Tomás La Unión, Guatemala
- Average UV index in January: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in January
Santo Tomás La Unión, Guatemala
- Average cloud cover in January: 12
The month with the most cloud cover is June (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 12).
Average visibility in January
Santo Tomás La Unión, Guatemala
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).
