June weather forecast
Manaus, Brazil

The first month of the winter, June, is still a tropical month in Manaus, Brazil, with an average temperature fluctuating between 31°C (87.8°F) and 23°C (73.4°F).

Temperature

In Manaus, the average high-temperature in June is essentially the same as in May - a still tropical 31°C (87.8°F). In Manaus, the average low-temperature is 23°C (73.4°F).

Heat index

In June, 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 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, clothing, wind). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. 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.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

In June, the average relative humidity in Manaus is 83%.

Rainfall

In Manaus, Brazil, during June, the rain falls for 11 days and regularly aggregates up to 115mm (4.53") of precipitation. In Manaus, during the entire year, the rain falls for 160 days and collects up to 2307mm (90.83") of precipitation.

Daylight

June has the shortest days of the year in Manaus, Brazil, with an average of 11h and 57min of daylight.
On the first day of June, sunrise is at 05:59 and sunset at 17:56. On the last day of the month, sunrise is at 06:05 and sunset at 18:02 -04.

Sunshine

In June, the average sunshine in Manaus is 6.2h.

UV index

In Manaus, the average daily maximum UV index in June is 11. A UV Index estimate of 11, and higher, represents an extreme threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 11 in June interpret into the following advice:
Practice all essential precautions. Protection against sun damage is crucial. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. 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.