July weather forecast
Rio Uaçá, Brazil

July in Rio Uaçá, Brazil, is a tropical summer month, with an average temperature varying between 30.3°C (86.5°F) and 21.5°C (70.7°F).

Temperature

The average high-temperature during July registers at a hot 30.3°C (86.5°F), maintaining a close resemblance to the previous month. Nighttime temperature lowers to an average of 21.5°C (70.7°F) in July.

Heat index

For most parts of July, the heat index is calculated to be a blisteringly hot 41°C (105.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The average relative humidity in July is 86%.

Rainfall

In Rio Uaçá, during July, the rain falls for 26.3 days and regularly aggregates up to 101mm (3.98") of precipitation. In Rio Uaçá, during the entire year, the rain falls for 280.4 days and collects up to 1281mm (50.43") of precipitation.

Daylight

In July, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:39. On the last day of July, sunrise is at 06:23 and sunset at 18:40 -03.

Sunshine

The average sunshine in July is 7.5h.

UV index

July through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index, 7 during July, leads to the following recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.