January weather forecast
San Rafael del Sur, Nicaragua

January in San Rafael del Sur is characterized by stable tropical conditions. The month begins the year on a dry note, a continuity from December. As winds pick up, with a common speed of 21.9km/h (13.6mph), January days welcome the new year with a fresh breeze. Comparatively clear skies ensure that sunlight is not significantly obstructed, promising substantial periods of sunshine. With sunset, cooler temperatures provide respite from the daytime heat.

Temperature

The transition into January shows a subtle variation to a still tropical 31.3°C (88.3°F) from December's 30.4°C (86.7°F) in the average high-temperature. Throughout January, San Rafael del Sur's nights cool down to an average of 23.8°C (74.8°F).

Heat index

During January, the heat index is computed to be a sweltering 37°C (98.6°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
The heat index's values are generally associated with conditions in shade and light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important 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.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In San Rafael del Sur, Nicaragua, the average relative humidity in January is 65%.

Rainfall

The only month without rainfall is January.

Daylight

The average length of the day in January is 11h and 31min.
On the first day of January, sunrise is at 06:05 and sunset at 17:32. On the last day of the month, sunrise is at 06:10 and sunset at 17:47 CST.

Sunshine

The months with the least sunshine are January and February, with an average of 7.6h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in San Rafael del Sur. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 7 transforms into these recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.