December weather forecast
Port Harcourt, Nigeria

December concludes the annual weather cycle in Port Harcourt, bearing witness to a return to the lower end of the spectrum in terms of rainfall, with a recorded average of 45mm (1.77"). This decrease corresponds with an increase in sunshine hours per day, reaffirming the arrival of the dry months. Retaining a comfortable temperature range and a more exposed sun gives the city an enjoyable end-of-the-year climate. In essence, December in Port Harcourt presents a dry, sunlit, and mildly pleasant weather scenario, perfect for wrapping up the year on a high note.

Temperature

A minimal variation is noted in Port Harcourt's average high-temperature at the onset of December, reaching a still tropical 32°C (89.6°F) from November's 30.2°C (86.4°F). During the December nights, an average temperature of 22.8°C (73°F) is observed.

Heat index

Throughout December, the heat index is estimated at a scorching 41°C (105.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

The average relative humidity in December is 72%.

Rainfall

December is the month with the least rainfall in Port Harcourt. Rain falls for 17.5 days and accumulates 45mm (1.77") of precipitation.

Sea temperature

In Port Harcourt, in December, the average water temperature is 28.3°C (82.9°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is perceived as agreeably warm, making all water activities enjoyable without the risk of discomfort over lengthy durations.

Daylight

With an average of 11h and 54min of daylight, December has the shortest days of the year.
On the first day of December in Port Harcourt, sunrise is at 06:25 and sunset at 18:16. On the last day of the month, sunrise is at 06:39 and sunset at 18:30 WAT.

Sunshine

The month with the most sunshine is December, with an average of 9.6h of sunshine.

UV index

January, February, April, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The UV index of 7 during December leads to these advisories:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take caution! The UV rays from the Sun gain strength from sand and water reflections.