September weather forecast
Ibaretama, Brazil

September, the first month of the spring in Ibaretama, is still a hot month, with temperature in the range of an average high of 34.3°C (93.7°F) and an average low of 22°C (71.6°F).

Temperature

The advent of September brings an average high-temperature of a still tropical 34.3°C (93.7°F), exhibiting minor difference from the previous month. September presents a pronounced divergence from daily peak temperatures, with the average low-temperature of 22°C (71.6°F).

Heat index

For most parts of September, the heat index is appraised at a scorching 42°C (107.6°F). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important 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, as evaporated sweat carries heat away from the body. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

September and October, with an average relative humidity of 57%, are the least humid months.

Rainfall

The months with the least rainfall in Ibaretama are September and October Rain falls for 6.2 days and accumulates 8mm (0.31") of rain.

Daylight

In September, the average length of the day is 12h and 5min.
On the first day of the month, sunrise is at 05:34 and sunset at 17:35. On the last day of September, sunrise is at 05:20 and sunset at 17:29 -03.

Sunshine

September has the most sunshine of the year, with an average of 9.3h of sunshine.

UV index

The months with the highest UV index are January, July through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 7 in September translates into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.