May weather forecast
Chumael, Guinea-Bissau

May, the last month of the spring in Chumael, is another torrid month, with an average temperature ranging between max 37.6°C (99.7°F) and min 23.2°C (73.8°F).

Temperature

As Chumael steps into May, the average high-temperature is measured at a still sweltering 37.6°C (99.7°F), displaying minor differences from April's 39.5°C (103.1°F). Nighttime temperatures throughout May register a significant deviation from the day's highs, averaging at a warm 23.2°C (73.8°F).

Heat index

During May, the heat index is computed to be a life-threatening hot 53°C (127.4°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In May, the average relative humidity is 59%.

Rainfall

In Chumael, in May, it is raining for 4.4 days, with typically 16mm (0.63") of accumulated precipitation. In Chumael, during the entire year, the rain falls for 109.7 days and collects up to 868mm (34.17") of precipitation.

Daylight

The average length of the day in May in Chumael is 12h and 40min.
On the first day of May, sunrise is at 06:39 and sunset at 19:12. On the last day of the month, sunrise is at 06:33 and sunset at 19:19 GMT.

Sunshine

In Chumael, the average sunshine in May is 9.7h.

UV index

The months with the highest UV index are January through July, September through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: In May, a regular UV index of 7 translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.