January weather forecast
San Esteban Catarina, El Salvador

Surrounded by moderate temperatures, January brings a shift from the chilly end of the previous year. Humidity is restrained, and the sun shines brightly for the larger part of the day. This equates to a pleasant weather experience in San Esteban Catarina. Notably, the temperature fluctuates between 18.9°C (66°F) and 32.3°C (90.1°F), favoring outdoor activities. As the month retreats, the weather sets the stage for the slightly warmer days ahead.

Temperature

In San Esteban Catarina, January's average high-temperature stands at a still tropical 32.3°C (90.1°F), closely related to the preceding month. San Esteban Catarina's January nights represent a significant downturn from the day's heat, with an average temperature of 18.9°C (66°F).

Heat index

The heat index value during January is computed to be a fiery hot 38°C (100.4°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in January is 62%.

Rainfall

January is the month with the least rainfall. Rain falls for 2.7 days and accumulates 2mm (0.08") of precipitation.

Daylight

The average length of the day in January in San Esteban Catarina is 11h and 26min.
On the first day of January, sunrise is at 06:18 and sunset at 17:38. On the last day of the month, sunrise is at 06:22 and sunset at 17:54 CST.

Sunshine

The average sunshine in January in San Esteban Catarina is 7.7h.

UV index

The months with the highest UV index in San Esteban Catarina are January through May and July, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In January, a regular UV index of 7 translates into these guidelines:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.