June weather forecast
Alcântara, Brazil

The first month of the winter, June, is also a moderately hot month in Alcântara, Brazil, with temperature in the range of an average low of 24.6°C (76.3°F) and an average high of 29.4°C (84.9°F).

Temperature

June's onset records a minor alteration in the average high-temperature to a still warm 29.4°C (84.9°F) from May's 29.3°C (84.7°F). In Alcântara, the month of June brings a consistent average low-temperature of 24.6°C (76.3°F), slightly cooler than its daytime highs.

Heat index

In June, the average heat index is estimated at a very hot 36°C (96.8°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots 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 'feels like' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important 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.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The average relative humidity in June is 82%.

Rainfall

In June, in Alcântara, the rain falls for 27.6 days. Throughout June, 225mm (8.86") of precipitation is accumulated. Throughout the year, there are 291.1 rainfall days, and 2596mm (102.2") of precipitation is accumulated.

Sea temperature

In Alcântara, the average seawater temperature in June is 28.4°C (83.1°F).
Note: Water activities in surface temperatures between 25°C (77°F) and 29°C (84.2°F) are seen as exceptional and extremely agreeable for lengthened time spans.

Daylight

June has the shortest days of the year, with an average of 12h and 0min of daylight.
On the first day of June in Alcântara, sunrise is at 05:55 and sunset at 17:55. On the last day of the month, sunrise is at 06:01 and sunset at 18:01 -03.

Sunshine

In Alcântara, Brazil, the average sunshine in June is 8h.

UV index

April, June through November, with an average maximum UV index of 7, are months with the highest UV index in Alcântara. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 in June translates into this advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice! The Sun's UV exposure elevates with sand and water reflections.