January weather forecast
San Juan Tepezontes, El Salvador

In the first month of the year, San Juan Tepezontes weather features a typical round of higher temperature readings joined by minor rainfall. In contrast to the rest of the year, January encompasses minor humidity measures, making it slightly arid. Witness skimpy clouds in the sky that allow abundant sunshine for up to 7.7 hours per day. Barely one day of rainfall in January sets it apart from the months that follow. A warmer trend with a high of 31.5°C (88.7°F) and a low of 18.9°C (66°F) magnify January's heat.

Temperature

San Juan Tepezontes registers an average high-temperature of a still tropical 31.5°C (88.7°F) at the commencement of January, closely related to the preceding month. In San Juan Tepezontes, the January nights descend to a significantly cooler average of 18.9°C (66°F) compared to daytime highs.

Heat index

For January, the heat index is appraised at a very hot 37°C (98.6°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

In San Juan Tepezontes, the average relative humidity in January is 63%.

Rainfall

The month with the least rainfall in San Juan Tepezontes is January, when the rain falls for 1.5 days and typically collects 1mm (0.04") of precipitation.

Daylight

The average length of the day in January in San Juan Tepezontes is 11h and 26min.
On the first day of January, sunrise is at 06:19 and sunset at 17:39. On the last day of the month, sunrise is at 06:23 and sunset at 17:55 CST.

Sunshine

The months with the least sunshine in San Juan Tepezontes are January and December, with an average of 7.7h of sunshine.

UV index

The months with the lowest UV index in San Juan Tepezontes are January, June through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 6 in January interprets into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.