December weather forecast
San Marcos, Nicaragua

December in San Marcos sees a further increase in high temperatures to 29.9°C (85.8°F) and a slight drop in low temperatures to 22.2°C (72°F), with relative humidity reducing to 73%. The city greets the dry season with minimal rainfall of 21mm (0.83"), the lowest of the year. The wind speed records a jump, breezing through the city's streets. A slight reduction in daylight follows, making the days shorter. Despite the reduction in the sunshine days and a marginal increase in cloud cover, the city's weather remains charming, closing the year on a refreshing note.

Temperature

The onset of December in San Marcos manifests an average high-temperature of a still warm 29.9°C (85.8°F), demonstrating a minor variation from the preceding month. San Marcos experiences a steady low-temperature of 22.2°C (72°F) throughout December.

Heat index

The heat index in December is appraised at a very hot 36°C (96.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in December is 73%.

Rainfall

In San Marcos, in December, during 10.8 rainfall days, 21mm (0.83") of precipitation is typically accumulated. In San Marcos, during the entire year, the rain falls for 214.4 days and collects up to 1654mm (65.12") of precipitation.

Daylight

December has the shortest days of the year, with an average of 11h and 24min of daylight.
On the first day of December, sunrise is at 05:49 and sunset at 17:18. On the last day of the month, sunrise is at 06:04 and sunset at 17:31 CST.

Sunshine

In San Marcos, Nicaragua, the average sunshine in December is 8.4h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in San Marcos are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in December translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.