May weather forecast
Port Harcourt, Nigeria

May solidifies Port Harcourt's reputation as a high-humidity destination. With rain being a regular occurrence, the wettest period of the year truly settles in. It is crucial to note, however, that despite the mounting rainfall touching 176mm (6.93"), there is no sign of extreme weather or hazards. With the sea maintaining a comfortable temperature, water-based activities are still enticing to many. Ultimately, the weather in May is a showcase of tropical moisture, interspersed with bright sunny spells.

Temperature

Port Harcourt's entry into May measures an average high-temperature of a still hot 30.3°C (86.5°F), closely parallel to the preceding month. Throughout May, the average low-temperature records at a warm 23.7°C (74.7°F).

Heat index

Throughout May, the heat index is estimated at a blisteringly hot 40°C (104°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in May is 83%.

Rainfall

In Port Harcourt, during May, the rain falls for 27.4 days and regularly aggregates up to 176mm (6.93") of precipitation. Throughout the year, there are 310.7 rainfall days, and 2138mm (84.17") of precipitation is accumulated.

Sea temperature

In May, the average sea temperature in Port Harcourt is 28.8°C (83.8°F).
Note: For swimming, diving, and various water activities, the temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are seen as highly enjoyable and comfortable for extended durations without any discomfort.

Daylight

The average length of the day in May is 12h and 20min.
On the first day of May in Port Harcourt, sunrise is at 06:20 and sunset at 18:37. On the last day of the month, sunrise is at 06:18 and sunset at 18:41 WAT.

Sunshine

In Port Harcourt, the average sunshine in May is 7.2h.

UV index

In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, a daily UV index of 6 turns into the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Stay aware! UV radiation is magnified when reflecting off sand and water.