May weather forecast
Oviedo, FL

May, the last month of the spring in Oviedo, is another warm month, with temperature in the range of an average low of 69.3°F (20.7°C) and an average high of 85.6°F (29.8°C).

Temperature

The shift from April to May is characterized by an average high-temperature of a still warm 85.6°F (29.8°C), not significantly different from the 81.5°F (27.5°C) of April. In Oviedo, the expected average low-temperature for May is a pleasant 69.3°F (20.7°C).

Heat index

May's mean heat index is calculated to be a very hot 95°F (35°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Oviedo, the average relative humidity in May is 73%.

Rainfall

In Oviedo, in May, during 10.8 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Oviedo, during the entire year, the rain falls for 130.9 days and collects up to 12.17" (309mm) of precipitation.

Daylight

In May, the average length of the day in Oviedo is 13h and 35min.
On the first day of the month, sunrise is at 6:43 am and sunset at 8:00 pm. On the last day of May, in Oviedo, sunrise is at 6:27 am and sunset at 8:18 pm EDT.

Sunshine

The average sunshine in May is 10.8h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In May, the average maximum UV index of 7 translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.