July weather forecast
Manaus, Brazil

July, like June, is another hot winter month in Manaus, Brazil, with an average temperature ranging between min 22.7°C (72.9°F) and max 31.3°C (88.3°F).

Temperature

In July, the average high-temperature is relatively the same as in June - a still tropical 31.3°C (88.3°F). In July, in Manaus, Brazil, the average low-temperature is 22.7°C (72.9°F).

Heat index

In July, the average heat index is appraised at an extremely hot 42°C (107.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, pregnancy, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in July is 80%.

Rainfall

In July, the rain falls for 8 days. Throughout July, 85mm (3.35") of precipitation is accumulated. In Manaus, during the entire year, the rain falls for 160 days and collects up to 2307mm (90.83") of precipitation.

Daylight

The average length of the day in July in Manaus is 11h and 58min.
On the first day of July, sunrise is at 06:05 and sunset at 18:02. On the last day of the month, sunrise is at 06:07 and sunset at 18:05 -04.

Sunshine

In Manaus, the average sunshine in July is 6.9h.

UV index

The month with the lowest UV index in Manaus, Brazil, is July, with an average maximum UV index of 10. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 10 in July transform into the following instructions:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim.