September weather forecast
San Rafael del Sur, Nicaragua

Coming in with 185mm (7.28") rainfall, September is considered as the wettest month of the year in San Rafael del Sur. The season exhibits dense cloud cover, contributing to the highest relative humidity of 80%. Reduced wind gusts and cooler temperatures sum up September as a rainy and tranquil month. Despite abundant cloud cover, the visibility remains just short of ideal.

Temperature

The arrival of September sees a recorded average high-temperature of a still hot 30.1°C (86.2°F), showing little divergence from the previous month's conditions. During September, San Rafael del Sur's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 25.1°C (77.2°F).

Heat index

For September, the heat index is computed to be a very hot 38°C (100.4°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Observations indicate that the heat index values are for shady locations with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
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. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

The average relative humidity in September is 80%.

Rainfall

In San Rafael del Sur, in September, during 27.1 rainfall days, 185mm (7.28") of precipitation is typically accumulated. In San Rafael del Sur, during the entire year, the rain falls for 177.4 days and collects up to 1153mm (45.39") of precipitation.

Daylight

The average length of the day in September in San Rafael del Sur is 12h and 11min.
On the first day of the month, sunrise is at 05:35 and sunset at 17:55. On the last day of September, in San Rafael del Sur, sunrise is at 05:34 and sunset at 17:36 CST.

Sunshine

In September, the average sunshine in San Rafael del Sur, Nicaragua, is 8.6h.

UV index

The months with the highest UV index in San Rafael del Sur are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: An average maximum UV index of 7 in September leads to these recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Enhance your sun protection with tightly woven, yet airy clothing.