May weather forecast
Biacha, Guinea-Bissau

The last month of the spring, May, is also a sweltering month in Biacha, Guinea-Bissau, with an average temperature varying between 23.8°C (74.8°F) and 35.3°C (95.5°F).

Temperature

The average high-temperature during May registers at a still sweltering 35.3°C (95.5°F), maintaining a close resemblance to the previous month. An average nighttime temperature of 23.8°C (74.8°F) is witnessed in Biacha throughout May.

Heat index

May's mean heat index is evaluated at a blisteringly hot 44°C (111.2°F). Heed: Expect heat cramps and heat exhaustion. Continued action may cause heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', measures the perceived warmth when incorporating the humidity present in the air. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. 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 May, the average relative humidity in Biacha is 56%.

Rainfall

In Biacha, Guinea-Bissau, in May, during 4 rainfall days, 11mm (0.43") of precipitation is typically accumulated. In Biacha, during the entire year, the rain falls for 103.1 days and collects up to 677mm (26.65") of precipitation.

Daylight

The average length of the day in May in Biacha is 12h and 41min.
On the first day of the month, sunrise is at 06:44 and sunset at 19:18. On the last day of May, in Biacha, sunrise is at 06:38 and sunset at 19:25 GMT.

Sunshine

The average sunshine in May is 9.8h.

UV index

January through June, September through December, with an average maximum UV index of 7, are months with the highest UV index in Biacha. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In May, the maximum UV index of 7 suggests this advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.