June weather forecast
Altamira, Brazil

June, the first month of the winter in Altamira, is still a tropical month, with an average temperature ranging between max 31.8°C (89.2°F) and min 21.3°C (70.3°F).

Temperature

The shift to June signals an average high-temperature of a still hot 31.8°C (89.2°F), subtly varied from May's 30.6°C (87.1°F). In the month of June, the temperature in Altamira generally rests at an average low of 21.3°C (70.3°F).

Heat index

The average heat index in June is evaluated at an extremely hot 44°C (111.2°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', joins air temperature with relative humidity to produce a temperature perception for humans. 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 exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. 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

In June, the average relative humidity in Altamira is 80%.

Rainfall

In Altamira, in June, it is raining for 20.3 days, with typically 55mm (2.17") of accumulated precipitation. Throughout the year, in Altamira, there are 260.4 rainfall days, and 1317mm (51.85") of precipitation is accumulated.

Daylight

June has the shortest days of the year, with an average of 11h and 54min of daylight.
On the first day of June, sunrise is at 06:28 and sunset at 18:25. On the last day of the month, sunrise is at 06:34 and sunset at 18:30 -03.

Sunshine

In June, the average sunshine in Altamira is 8.3h.

UV index

The months with the highest UV index are June through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In June, the UV index of 7 transforms into the following advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.