May weather forecast
Vigia, Brazil

The last month of the autumn, May, is also a moderately hot month in Vigia, Brazil, with temperature in the range of an average low of 24.5°C (76.1°F) and an average high of 29.5°C (85.1°F).

Temperature

Vigia marks the start of May with an average high-temperature of a still moderately hot 29.5°C (85.1°F), hinting at a slight fluctuation from April's 28.8°C (83.8°F). Vigia's temperature during May nights registers a minor decrease to an average low of 24.5°C (76.1°F).

Heat index

The heat index value for May is computed to be a sweltering 38°C (100.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
The metrics for the heat index are tailored for both shady environments and light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In May, the average relative humidity is 86%.

Rainfall

In Vigia, during May, the rain falls for 30.3 days and regularly aggregates up to 305mm (12.01") of precipitation. 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 in Vigia.
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

In Vigia, the average length of the day in May is 12h and 5min.
On the first day of May, sunrise is at 06:07 and sunset at 18:12. On the last day of the month, sunrise is at 06:08 and sunset at 18:12 -03.

Sunshine

In Vigia, the average sunshine in May is 7.7h.

UV index

February through May, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A daily maximum UV index of 6 in May translates into the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Note! Reflective surfaces like sand and water heighten the UV radiation levels.