May weather forecast
Rumbek, South Sudan

As May unfolds, Rumbek finds itself in the throes of the wet season. Torrential downpours are frequent and hours of sunshine start to dwindle. The city sees its highest rainfall, a considerable 110mm (4.33") drenching the landscape and providing much-needed hydration to the flora. Umbrellas and rain jackets become quintessential accessories, as residents accommodate the daily spells of rain while carrying on with their chores.

Temperature

The commencement of May includes a gentle temperature shift, with the average high-temperature dropping a bit from a torrid 37.8°C (100°F) in April to a tropical 34.4°C (93.9°F). In Rumbek, an average nighttime temperature of 24.2°C (75.6°F) is expected during May.

Heat index

For May, the heat index is calculated to be a blistering 44°C (111.2°F). Take note: Heat exhaustion and heat cramps are expected. Heatstroke can occur with prolonged effort.
Know that the heat index computations account for shaded terrains and slight winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In Rumbek, the average relative humidity in May is 62%.

Rainfall

The month with the most rainfall in Rumbek is May, when the rain falls for 21.3 days and typically aggregates up to 110mm (4.33") of precipitation.

Daylight

The average length of the day in May in Rumbek, South Sudan, is 12h and 26min.
On the first day of the month, sunrise is at 05:47 and sunset at 18:09. On the last day of May, sunrise is at 05:44 and sunset at 18:13 CAT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

In Rumbek, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 7 in May translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.