September weather forecastPicos, Brazil

Weather in September

The first month of the spring, September, is a very hot month in Picos, Brazil, with an average temperature ranging between max 35.5°C (95.9°F) and min 21.8°C (71.2°F).

Temperature

Picos's September showcases an average high-temperature of a sweltering 35.5°C (95.9°F), hardly distinct from August's 34.1°C (93.4°F). September in Picos, marked by an average low-temperature of 21.8°C (71.2°F), indicates a large temperature drop from the daytime peak.

Heat index

The heat index for September is appraised at a very hot 39°C (102.2°F). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The least humid month is September, with an average relative humidity of 42%.

Rainfall

Months with rainfall in Picos are January through July, September through December. September is the first month it rains in Picos. Throughout September, in the average 1.5 rainfall days, it receives 2mm (0.08") of precipitation. In Picos, during the entire year, the rain falls for 152.5 days and collects up to 872mm (34.33") of precipitation.

Daylight

In Picos, the average length of the day in September is 12h and 4min.
On the first day of September in Picos, sunrise is at 05:46 and sunset at 17:45. On the last day of the month, sunrise is at 05:30 and sunset at 17:40 -03.

Sunshine

August and September, with an average of 9.9h of sunshine, are months with the most sunshine in Picos.

UV index

The months with the highest UV index are September and October, with an average maximum UV index of 8. A UV Index reading of 8 to 10 represents a very high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum UV index of 8 in September translates into the following recommendations:
With the absence of protection, damage to skin and eyes can occur instantly. Ensure precautions are taken. 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. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.