May weather forecast
Brazzaville, Congo

In contrast to the previous months, Brazzaville in May witnesses a significant drop in the rainfall levels amounting to 101mm (3.98"). As summer takes its course, the humidity stays constant while heat reaches its peak during this period. Despite being under the cover of clouds, the city gets exposed to ample sunlight for sustainment. Nonetheless, patterns of wind, humidity, and temperature keep the weather from being too harsh.

Temperature

In May, the average high-temperature registers at a still tropical 30.8°C (87.4°F), nearly identical to April's 31°C (87.8°F). An average low-temperature of 22.1°C (71.8°F) is recorded during the nights in May.

Heat index

May's mean heat index is evaluated at an extremely hot 40°C (104°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

The average relative humidity in May in Brazzaville is 79%.

Rainfall

In Brazzaville, Congo, during May, the rain falls for 23.6 days and regularly aggregates up to 101mm (3.98") of precipitation. Throughout the year, in Brazzaville, there are 243.1 rainfall days, and 1109mm (43.66") of precipitation is accumulated.

Daylight

In May, the average length of the day in Brazzaville is 11h and 55min.
On the first day of May in Brazzaville, sunrise is at 05:57 and sunset at 17:54. On the last day of the month, sunrise is at 06:00 and sunset at 17:53 WAT.

Sunshine

In May, the average sunshine in Brazzaville, Congo, is 8.3h.

UV index

The months with the highest UV index are January, March through May, July through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 7 during May translates into the following guidance:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.