September weather forecast
Groaíras, Brazil

September, the first month of the spring in Groaíras, is a very hot month, with an average temperature varying between 35.4°C (95.7°F) and 22.7°C (72.9°F).

Temperature

The arrival of September records an average high-temperature of a fiery hot 35.4°C (95.7°F), closely related to the 34.5°C (94.1°F) observed in August. Groaíras's average low-temperature of 22.7°C (72.9°F) in September reflects a considerable decline from the daytime peak.

Heat index

During September, the heat index is computed to be a life-threatening hot 45°C (113°F). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are largely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. 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. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

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

Rainfall

September is the month with the least rainfall. Rain falls for 5.1 days and accumulates 3mm (0.12") of precipitation.

Daylight

In September, the average length of the day in Groaíras, Brazil, is 12h and 5min.
On the first day of September, sunrise is at 05:40 and sunset at 17:42. On the last day of the month, sunrise is at 05:27 and sunset at 17:35 -03.

Sunshine

In Groaíras, the average sunshine in September is 9.1h.

UV index

The months with the highest UV index are July through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.