January weather forecast
Potonico, El Salvador

In Potonico, El Salvador, January is characterized by cooler temperatures and lower humidity compared to the months that follow. Wind speeds reach up to 7.5km/h (4.7mph), with maximum gusts clocking up to 11.5km/h (7.1mph). The precipitation in this month is minimal, resulting in fewer rainy days and more clear, sunny days. Despite the wind, the UV index stands at 6 indicating moderate exposure to sunlight. Therefore, residents and travelers are advised to exercise a degree of caution when engaging in outdoor activities during daytime hours.

Temperature

The advent of January observes an average high-temperature of a still hot 31.5°C (88.7°F), nearly identical to December's 30.8°C (87.4°F). Potonico logs a substantial downturn to a comfortable 18.9°C (66°F) during January nights, a considerable shift from daytime highs.

Heat index

The heat index in January is estimated at a fiery hot 37°C (98.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In Potonico, the average relative humidity in January is 63%.

Rainfall

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

Daylight

In Potonico, the average length of the day in January is 11h and 25min.
On the first day of January, sunrise is at 06:19 and sunset at 17:38. On the last day of the month, sunrise is at 06:23 and sunset at 17:54 CST.

Sunshine

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

UV index

The months with the lowest UV index are January, June through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the maximum UV index of 6 suggests these recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.