May weather forecastChapa, Guinea-Bissau

Weather in May

May, the last month of the spring in Chapa, is also a blistering month, with temperature in the range of an average high of 40.5°C (104.9°F) and an average low of 24.1°C (75.4°F).

Temperature

May brings a marginal elevation to a still extremely hot 40.5°C (104.9°F) from April's 41.3°C (106.3°F) in Chapa's average high-temperatures. Compared to daytime temperatures, Chapa's temperature drops significantly, averaging a moderately hot 24.1°C (75.4°F) during the nights of May.

Heat index

The heat index for May is estimated at a blazing hot 52°C (125.6°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.

Humidity

The average relative humidity in May is 44%.

Rainfall

In May, the rain falls for 3.3 days. Throughout May, 4mm (0.16") of precipitation is accumulated. In Chapa, during the entire year, the rain falls for 109.1 days and collects up to 654mm (25.75") of precipitation.

Daylight

In May, the average length of the day is 12h and 42min.
On the first day of May, sunrise is at 06:42 and sunset at 19:17. On the last day of the month, sunrise is at 06:36 and sunset at 19:25 GMT.

Sunshine

In Chapa, the average sunshine in May 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 reading of 8 to 10 represents a very high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 8 in May translates into these instructions:
Swift harm can befall unprotected skin and eyes. Prioritize safety. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.