May weather forecast
Matadi, Democratic Republic of Congo

May represents a significant shift in weather, with a notably sharp decrease in rainfall from 142mm (5.59") to 69mm (2.72"). This shift is accompanied by a slight decrease in temperature and daylight hours. Despite this decline, the weather remains relatively warm and humid. The significant decrease in rainfall marks the end of the heavy rain period and the onset of the drier season.

Temperature

The shift from April to May in Matadi is characterized by an average high-temperature of a still hot 31.4°C (88.5°F), not significantly different from the 31.3°C (88.3°F) of April. Matadi in May experiences a low-temperature average of 22.2°C (72°F).

Heat index

The average heat index in May is computed to be a blisteringly hot 43°C (109.4°F). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.
Heat index evaluations are typically in the context of light winds and shaded environments. 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', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

In Matadi, the average relative humidity in May is 82%.

Rainfall

In Matadi, in May, during 19.5 rainfall days, 69mm (2.72") of precipitation is typically accumulated. Throughout the year, there are 212.4 rainfall days, and 988mm (38.9") of precipitation is accumulated.

Daylight

In May, the average length of the day in Matadi is 11h and 51min.
On the first day of the month, sunrise is at 06:06 and sunset at 18:00. On the last day of May, in Matadi, sunrise is at 06:09 and sunset at 17:58 WAT.

Sunshine

In May, the average sunshine is 6.2h.

UV index

The months with the highest UV index are January, March through May, August, September and November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in May transforms into this advice:
Avoid excessive sunlight. Those with lighter skin may 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. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.