July weather forecast
Vigia, Brazil

July is a tropical winter month in Vigia, Brazil, with an average temperature fluctuating between 23.9°C (75°F) and 30.2°C (86.4°F).

Temperature

In July, the average high-temperature registers at a tropical 30.2°C (86.4°F), nearly identical to June's 29.9°C (85.8°F). In July, the nighttime temperature lowers to an average of 23.9°C (75°F).

Heat index

For most parts of July, the heat index is computed to be a very hot 39°C (102.2°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.

Humidity

The average relative humidity in July is 81%.

Rainfall

In July, the rain falls for 29.4 days. Throughout July, 149mm (5.87") of precipitation is accumulated. In Vigia, during the entire year, the rain falls for 315.6 days and collects up to 2313mm (91.06") of precipitation.

Sea temperature

January, May through August and November, with an average sea temperature of 28.8°C (83.8°F), are months with the warmest seawater.
Note: Surface water temperatures falling between 25°C (77°F) and 29°C (84.2°F) are regarded as prime and extremely agreeable for enduring periods during any water activity.

Daylight

The average length of the day in July is 12h and 5min.
On the first day of July, sunrise is at 06:14 and sunset at 18:18. On the last day of the month, sunrise is at 06:16 and sunset at 18:21 -03.

Sunshine

In July, the average sunshine in Vigia is 9h.

UV index

January, June through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 7 during July translates into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.