September weather forecast
Xapuri, Brazil

The first month of the spring, September, is still a tropical month in Xapuri, Brazil, with an average temperature varying between 34.3°C (93.7°F) and 21.6°C (70.9°F).

Temperature

Temperature records mark September as the warmest month, with highs averaging 34.3°C (93.7°F) and lows at 21.6°C (70.9°F).

Heat index

The heat index in September is computed to be an extremely hot 43°C (109.4°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in September in Xapuri is 61%.

Rainfall

In Xapuri, in September, it is raining for 15.1 days, with typically 52mm (2.05") of accumulated precipitation. Throughout the year, there are 253 rainfall days, and 1428mm (56.22") of precipitation is accumulated.

Daylight

In Xapuri, the average length of the day in September is 12h and 3min.
On the first day of September in Xapuri, sunrise is at 05:36 and sunset at 17:31. On the last day of the month, sunrise is at 05:17 and sunset at 17:29 -05.

Sunshine

The average sunshine in September is 9.3h.

UV index

July through October, with an average maximum UV index of 7, are months with the highest UV index in Xapuri. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: A typical high UV index of 7 in September suggests the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.