December weather forecast
Mazatlán, Nicaragua

December, the first month of the winter in Mazatlán, is also a moderately hot month, with an average temperature ranging between min 21.5°C (70.7°F) and max 29.8°C (85.6°F).

Temperature

The transition into December reveals an average high-temperature of a still moderately hot 29.8°C (85.6°F), mirroring a close resemblance to November. Throughout December, the average low-temperature in Mazatlán dips to an agreeable 21.5°C (70.7°F).

Heat index

December's average heat index is computed to be a fiery hot 35°C (95°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In December, the average relative humidity in Mazatlán is 72%.

Rainfall

In Mazatlán, in December, during 6.4 rainfall days, 12mm (0.47") of precipitation is typically accumulated. Throughout the year, there are 184 rainfall days, and 1415mm (55.71") of precipitation is accumulated.

Daylight

The month with the shortest days in Mazatlán is December, with an average of 11h and 24min of daylight.
On the first day of the month, sunrise is at 05:50 and sunset at 17:18. On the last day of December, sunrise is at 06:05 and sunset at 17:31 CST.

Sunshine

In December, the average sunshine is 8.5h.

UV index

January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index in Mazatlán. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 7 during December leads to these advisories:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.