May weather forecast
Sindina, Guinea-Bissau

The last month of the spring, May, is also a blisteringly hot month in Sindina, Guinea-Bissau, with an average temperature fluctuating between 24.1°C (75.4°F) and 40.5°C (104.9°F).

Temperature

The initiation of May records an average high-temperature of a still scorching 40.5°C (104.9°F), displaying a near consistency with the previous month. May in Sindina, marked by an average low-temperature of 24.1°C (75.4°F), indicates a large temperature drop from the daytime peak.

Heat index

For most parts of May, the heat index is estimated at a blazing hot 52°C (125.6°F). Warning: Heat cramps and heat exhaustion are anticipated. Heatstroke is a risk with ongoing activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When there is an excess of moisture in the atmosphere, the efficiency of the evaporation process is lessened, leading to less efficient body cooling and a sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

In Sindina, Guinea-Bissau, the average relative humidity in May is 44%.

Rainfall

In Sindina, in May, it is raining for 3.3 days, with typically 4mm (0.16") of accumulated precipitation. In Sindina, during the entire year, the rain falls for 109.1 days and collects up to 654mm (25.75") of precipitation.

Daylight

In Sindina, Guinea-Bissau, the average length of the day in May is 12h and 42min.
On the first day of the month, sunrise is at 06:41 and sunset at 19:16. On the last day of May, sunrise is at 06:35 and sunset at 19:24 GMT.

Sunshine

In May, the average sunshine is 9.8h.

UV index

March through May, with an average maximum UV index of 8, are months with the highest UV index. A UV Index estimate of 8 to 10 represents a very high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum UV index of 8 during May translates into these guidelines:
Always safeguard yourself; without protection, skin and eyes can get damaged instantly. 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. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.