May weather forecast
Antotinha, Guinea-Bissau

In May, Antotinha sees a visible shift as the weather takes a definitive turn towards the rainy season. Despite the consistent high temperatures of up to 40.5°C (104.9°F), a considerable increase in rainfall and humidity heralds the onset of the wet season. The landscapes of the city transform under a setting of elongated daylight hours and increased cloud coverage. The breezes perceptibly mellow out approaching the rainfall-heavy months. Despite the impending rains, the city continues to enjoy abundant sunshine, with only a slight tapering from the months before.

Temperature

May's weather records an average high-temperature of a still blistering 40.5°C (104.9°F), showing little deviation from April. Antotinha notes a substantial temperature decline from the daytime peaks throughout May, with an average nighttime temperature of 24.1°C (75.4°F).

Heat index

May's average heat index is estimated at a burning hot 52°C (125.6°F). Vigilance: Heat cramps and heat exhaustion are likely. The likelihood of heatstroke increases with continued activity.
In reference to the heat index, it's for places in shade and with a slight wind. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

The average relative humidity in May is 44%.

Rainfall

In Antotinha, in May, it is raining for 3.3 days, with typically 4mm (0.16") of accumulated precipitation. In Antotinha, 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 in Antotinha 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 19:24 GMT.

Sunshine

In May, the average sunshine in Antotinha 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 of 8 to 10 symbolizes a very high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The daily high UV index of 8 in May translates into this advice:
Take special precautions, as unprotected skin can be damaged and can burn quickly. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.