December weather forecast
Port Harcourt, Nigeria

Weather in December

The first month of the winter, December, is still a hot month in Port Harcourt, Nigeria, with temperature in the range of an average high of 32°C (89.6°F) and an average low of 22.8°C (73°F).

Temperature

In December, the average high-temperature is relatively the same as in November - a still tropical 32°C (89.6°F). In Port Harcourt, Nigeria, the average low-temperature is 22.8°C (73°F).

Heat index

The average heat index in December is evaluated at an extremely hot 41°C (105.8°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like differences in body mass, height, and shape, metabolic differences, pregnancy, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

The average relative humidity in December in Port Harcourt is 72%.

Rainfall

The month with the least rainfall is December, when the rain falls for 17.5 days and typically collects 45mm (1.77") of precipitation.

Sea temperature

In Port Harcourt, the average seawater temperature in December is 28.3°C (82.9°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

December has the shortest days of the year, with an average of 11h and 51min of daylight.
On the first day of the month, sunrise is at 06:24 and sunset at 18:16. On the last day of December, in Port Harcourt, sunrise is at 06:39 and sunset at 18:30 WAT.

Sunshine

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

UV index

The months with the highest UV index are January, February, April, November and December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Port Harcourt?

In Port Harcourt, in December, the average high-temperature is 32°C (89.6°F), and the average low-temperature is 22.8°C (73°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in December is evaluated at 41°C (105.8°F).

What is the average humidity in December in Port Harcourt?

In December, the average relative humidity is 72%.

What is the driest month in Port Harcourt?

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

How many days does it rain in December in Port Harcourt?

In Port Harcourt, during December, the rain falls for 17.5 days and regularly aggregates up to 45mm (1.77") of precipitation.

What is the water temperature in December in Port Harcourt?

In December, the average sea temperature in Port Harcourt is 28.3°C (82.9°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the month with the shortest days in Port Harcourt?

With an average of 11h and 51min of daylight, December has the shortest days of the year in Port Harcourt.

What is the average length of the day in December in Port Harcourt?

In December, the average day length in Port Harcourt, Nigeria, is 11h and 51min.

What time are sunrise and sunset in December in Port Harcourt?

On the first day of December in Port Harcourt, sunrise is at 06:24 and sunset at 18:16. On the last day of the month, sunrise is at 06:39 and sunset at 18:30 WAT.

What month has the most sunshine in Port Harcourt?

The month with the most sunshine in Port Harcourt, Nigeria, is December, with an average of 9.6h of sunshine.

How long on average sun shines in December in Port Harcourt?

In Port Harcourt, the average sunshine duration in December is 9.6h.

When is the highest UV index in Port Harcourt?

January, February, April, November and December, with an average maximum UV index of 7, are months with the highest UV index in Port Harcourt, Nigeria.

How high is the UV index in December in Port Harcourt?

In December, the average daily maximum UV index in Port Harcourt is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Average temperature in December
Port Harcourt, Nigeria

Average temperature in December - Port Harcourt, Nigeria
  • Average high temperature in December: 32°C

The warmest month (with the highest average high temperature) is January (32.8°C).
The month with the lowest average high temperature is July (26.8°C).

  • Average low temperature in December: 22.8°C

The month with the highest average low temperature is March (24.3°C).
The coldest month (with the lowest average low temperature) is August (21.8°C).

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Average pressure in December
Port Harcourt, Nigeria

Average pressure in December - Port Harcourt, Nigeria
  • Average pressure in December: 1010.4mbar

The month with the highest atmospheric pressure is July (1013.6mbar).
The month with the lowest atmospheric pressure is February (1009.7mbar).

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Average wind speed in December
Port Harcourt, Nigeria

Average wind speed in December - Port Harcourt, Nigeria
  • Average wind speed in December: 6.5km/h

The windiest month (with the highest average wind speed) is August (9.6km/h).
The calmest month (with the lowest average wind speed) is November (6.3km/h).

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Average humidity in December
Port Harcourt, Nigeria

Average humidity in December - Port Harcourt, Nigeria
  • Average humidity in December: 72%

The months with the highest relative humidity are July and September (88%).
The month with the lowest relative humidity is January (70%).

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Average rainfall in December
Port Harcourt, Nigeria

Average rainfall in December - Port Harcourt, Nigeria
  • Average rainfall in December: 45mm

The wettest month (with the highest rainfall) is July (293mm).
The driest month (with the least rainfall) is December (45mm).

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Average rainfall days in December
Port Harcourt, Nigeria

Average rainfall days in December - Port Harcourt, Nigeria
  • Average rainfall days in December: 17.5 days

The months with the highest number of rainy days are August and October (30.1 days).
The month with the least rainy days is January (14.9 days).

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Average sea temperature in December
Port Harcourt, Nigeria

Average sea temperature in December - Port Harcourt, Nigeria
  • Average sea temperature in December: 28.3°C

The best month for swimming (with the highest average sea temperature) is April (28.9°C).
The coldest month (with the lowest average sea temperature) is August (26.1°C).

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Average daylight in December /
Average sunshine in December
Port Harcourt, Nigeria

Average daylight in December / Average sunshine in December - Port Harcourt, Nigeria
  • Average daylight in December: 11h and 51min

The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 51min).

  • Average sunshine in December: 9h and 36min

The month with the most sunshine is December (Average sunshine: 9h and 36min).
The month with the least sunshine is August (Average sunshine: 3h and 24min).

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Average sunshine days in December
Port Harcourt, Nigeria

Average sunshine days in December - Port Harcourt, Nigeria
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is January (15.3 days).
The month with the least sunshine days is September (0.2 days).

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Average UV index in December
Port Harcourt, Nigeria

Average UV index in December - Port Harcourt, Nigeria
  • Average UV index in December: 7

The months with the highest UV index are January, February, April, November and December (UV index 7).
The months with the lowest UV index are July and August (UV index 5).

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Average cloud cover in December
Port Harcourt, Nigeria

Average cloud cover in December - Port Harcourt, Nigeria
  • Average cloud cover in December: 26

The month with the most cloud cover is August (Cloud cover 78).
The months with the least cloud cover are January and December (Cloud cover 26).

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Average visibility in December
Port Harcourt, Nigeria

Average visibility in December - Port Harcourt, Nigeria
  • Average visibility in December: 9km

The months with the highest visibility are January, February, March, April and December (9km).
The months with the lowest visibility are July, August, September and October (7km).

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