May weather forecast
Natal, Brazil

Come May, Natal embraces a definitive shift towards drier weather. The decline in rainfall from April is significant, dropping to just 82mm (3.23") for the month. Demonstrating considerably more sunshine during the day as summer sets in, Natal has less cloud cover than in preceding months. Sea temperatures show a slight dip, putting a slight chill in the water. Despite this, the overall climate remains quite welcoming to visitors, with a measurable drop in wind speed contributing to a calmer atmosphere.

Temperature

The dawn of May in Natal sees an average high-temperature of a moderately hot 29.6°C (85.3°F), subtly contrasting with April's 30°C (86°F). The nighttime temperature in Natal in May experiences a minor dip, averaging 25.4°C (77.7°F).

Heat index

The average heat index in May is calculated to be a sweltering 36°C (96.8°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In May, the average relative humidity in Natal is 78%.

Rainfall

In May, in Natal, the rain falls for 19.8 days. Throughout May, 82mm (3.23") of precipitation is accumulated. Throughout the year, there are 195.4 rainfall days, and 692mm (27.24") of precipitation is accumulated.

Sea temperature

In Natal, in May, the average water temperature is 28.6°C (83.5°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

Daylight

In May, the average length of the day in Natal, Brazil, is 11h and 51min.
On the first day of the month, sunrise is at 05:20 and sunset at 17:15. On the last day of May, sunrise is at 05:24 and sunset at 17:12 -03.

Sunshine

In Natal, Brazil, the average sunshine in May is 7.8h.

UV index

The months with the highest UV index in Natal are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 7 in May translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Attention! UV radiation is markedly stronger with water and sand reflections.