May weather forecast
Suna, Guinea-Bissau

The last month of the spring, May, is another extremely hot month in Suna, Guinea-Bissau, with an average temperature ranging between max 41.3°C (106.3°F) and min 23.8°C (74.8°F).

Temperature

The arrival of May brings an average high-temperature of a still extremely hot 41.3°C (106.3°F), nearly identical to April's 42.1°C (107.8°F). A stark contrast in day to night temperatures can be seen in May, with an average low-temperature of 23.8°C (74.8°F).

Heat index

The heat index for May is appraised at a burning hot 54°C (129.2°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.
Note that heat index values are valued for light wind and location in the shade. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In May, the average relative humidity is 43%.

Rainfall

In May, the rain falls for 3.3 days. Throughout May, 5mm (0.2") of precipitation is accumulated. Throughout the year, there are 107.6 rainfall days, and 593mm (23.35") of precipitation is accumulated.

Daylight

In Suna, the average length of the day in May is 12h and 42min.
On the first day of May, sunrise is at 06:38 and sunset at 19:13. On the last day of the month, sunrise is at 06:32 and sunset at 19:21 GMT.

Sunshine

In May, the average sunshine is 9.8h.

UV index

The months with the highest UV index are March through May, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily maximum UV index of 8 in May translates into the following instructions:
Be sure to take precautions. Without protection, skin might suffer damage quickly. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.