January weather forecast
Jayaque, El Salvador

Tranquility defines January in Jayaque, El Salvador, as post festive lasts, the weather coaxes residents and visitors into a slow ease into the new year. A noticeable feature this month, due to an average rainfall of 1mm (0.04"), minimal rain showers are expected. Despite the fall in the mercury, sunlight dominates most of the day in this city. With a significant majority of the days deemed sunshine days, the skies remain clear. Jayaque displays a beautiful start of the year, setting the stage for the upcoming dry season.

Temperature

The arrival of January brings an average high-temperature of a tropical 30.6°C (87.1°F), closely following the temperature pattern of December. Jayaque experiences an average temperature drop to an enjoyable 19.4°C (66.9°F) during January nights.

Heat index

The heat index value for January is appraised at a torrid 35°C (95°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In Jayaque, El Salvador, the average relative humidity in January is 65%.

Rainfall

January is the month with the least rainfall in Jayaque. Rain falls for 1.9 days and accumulates 1mm (0.04") of precipitation.

Daylight

In Jayaque, the average length of the day in January is 11h and 26min.
On the first day of January in Jayaque, sunrise is at 06:21 and sunset at 17:41. On the last day of the month, sunrise is at 06:24 and sunset at 17:57 CST.

Sunshine

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

UV index

January, May, June, August through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 6 in January transforms into this advice:
Shield from overexposure. Defense against sun-related harm is required. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.