May weather forecast
Caiar, Guinea-Bissau

The last month of the spring, May, is also a fiery hot month in Caiar, Guinea-Bissau, with an average temperature ranging between max 37.6°C (99.7°F) and min 23.2°C (73.8°F).

Temperature

Caiar's average high-temperature in May sits at a still sweltering 37.6°C (99.7°F), showing little difference from the previous month. Caiar's May nights cool down significantly from the day's heat, to an average low-temperature of 23.2°C (73.8°F).

Heat index

For May, the heat index is appraised at a burning hot 53°C (127.4°F). Notice: Heat cramps and heat exhaustion are likely. Continued strenuous activity might lead to heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

In Caiar, the average relative humidity in May is 59%.

Rainfall

In Caiar, in May, during 4.4 rainfall days, 16mm (0.63") of precipitation is typically accumulated. Throughout the year, there are 109.7 rainfall days, and 868mm (34.17") of precipitation is accumulated.

Daylight

In May, the average length of the day is 12h and 38min.
On the first day of May in Caiar, sunrise is at 06:42 and sunset at 19:14. On the last day of the month, sunrise is at 06:37 and sunset at 19:21 GMT.

Sunshine

In May, the average sunshine is 9.7h.

UV index

January through July, September through December, with an average maximum UV index of 7, are months with the highest UV index in Caiar. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 7 in May transforms into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.