September weather forecast
Masatepe, Nicaragua

September in Masatepe, Nicaragua, stands out as the wettest month, with average rainfall crossing 216mm (8.5"). The high rainfall transforms the city into a lush green landscape. Regular showers do not dampen the warmth, and temperatures persist at comfortable levels. The abundant rain and high humidity may lead to lower visibility, although it doesn’t take away the charm of long bright days. Looking ahead to October, though rain will persist, it will slightly recede compared to September.

Temperature

Masatepe transitions into September recording an average high-temperature of a still tropical 30.2°C (86.4°F), closely aligning with the preceding month's temperature. Masatepe's average low-temperature in September is measured at a warm 23.6°C (74.5°F).

Heat index

During September, the heat index is appraised at a torrid 39°C (102.2°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Heat index values are typically calculated for conditions of shade and a light breeze. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. 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. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In Masatepe, the average relative humidity in September is 82%.

Rainfall

In September, the rain falls for 27.5 days. Throughout September, 216mm (8.5") of precipitation is accumulated. In Masatepe, during the entire year, the rain falls for 214.4 days and collects up to 1654mm (65.12") of precipitation.

Daylight

The average length of the day in September is 12h and 11min.
On the first day of September, sunrise is at 05:34 and sunset at 17:54. On the last day of the month, sunrise is at 05:33 and sunset at 17:35 CST.

Sunshine

The average sunshine in September 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 are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 in September translates into these instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.