May weather forecast
Catió, Guinea-Bissau

May introduces a significant uptick in rainfall, measuring at 16mm (0.63"), indicative of Catió's wet season. The city transitions from the too hot summer days to a humid, rainy atmosphere with an appreciable dip in the temperature. The increased cloud cover, coupled with regular showers, contributes to moderate conditions amidst the rain-dominated phase. Despite the increased precipitation, sunlight endures slightly longer hours, producing somewhat clammy weather. Respectively, the city records a surge in humidity levels, announcing the official commencement of the monsoo showers.

Temperature

Catió commences May with an average high-temperature of a still very hot 37.6°C (99.7°F), maintaining a close resemblance to the previous month. Compared to daytime temperatures, Catió's temperature drops significantly, averaging a warm 23.2°C (73.8°F) during the nights of May.

Heat index

In May, the average heat index is estimated at a blazing hot 53°C (127.4°F). Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.
Heat index evaluations are typically in the context of light winds and shaded environments. 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 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

The average relative humidity in May is 59%.

Rainfall

In Catió, 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

The average length of the day in May is 12h and 39min.
On the first day of the month, sunrise is at 06:41 and sunset at 19:14. On the last day of May, in Catió, sunrise is at 06:36 and sunset at 19:21 GMT.

Sunshine

In Catió, the average sunshine in May is 9.7h.

UV index

The months with the highest UV index are January through July, September through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in May interprets into the following advice:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.