May weather forecast
Port Harcourt, Nigeria

Weather in May

May, the last month of the spring in Port Harcourt, is also a hot month, with an average temperature fluctuating between 23.7°C (74.7°F) and 30.3°C (86.5°F).

Temperature

In May, the average high-temperature is essentially the same as in April - a still hot 30.3°C (86.5°F). In May, the average low-temperature is 23.7°C (74.7°F).

Heat index

The average heat index in May is evaluated at a blistering 40°C (104°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 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like activity, pregnancy, clothing, and metabolic differences affect individual temperature impact. 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. 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 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 May in Port Harcourt is 83%.

Rainfall

In Port Harcourt, Nigeria, in May, it is raining for 27.4 days, with typically 176mm (6.93") of accumulated precipitation. In Port Harcourt, Nigeria, during the entire year, the rain falls for 310.7 days and collects up to 2138mm (84.17") of precipitation.

Sea temperature

In Port Harcourt, the average seawater temperature in May is 28.8°C (83.8°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Port Harcourt, the average length of the day in May is 12h and 20min.
On the first day of the month, sunrise is at 06:20 and sunset at 18:37. On the last day of May, in Port Harcourt, sunrise is at 06:18 and sunset at 18:40 WAT.

Sunshine

The average sunshine in May is 7.2h.

UV index

In Port Harcourt, Nigeria, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In May, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in May in Port Harcourt?

In Port Harcourt, Nigeria, in May, the average high-temperature is 30.3°C (86.5°F), and the average low-temperature is 23.7°C (74.7°F). in May, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is evaluated at 40°C (104°F).

What is the average humidity in May in Port Harcourt?

The average relative humidity in May is 83%.

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

In Port Harcourt, during May, the rain falls for 27.4 days and regularly aggregates up to 176mm (6.93") of precipitation.

What is the sea water temperature in May in Port Harcourt?

In May, the average sea temperature in Port Harcourt is 28.8°C (83.8°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Port Harcourt have in May?

In May, the average day length is 12h and 20min.

When is the sunrise / sunset in May in Port Harcourt?

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 18:40 WAT.

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

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

What is the UV index intensity in May in Port Harcourt?

The average daily maximum UV index in May in Port Harcourt, Nigeria, is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Port Harcourt, Nigeria

Average temperature in May - Port Harcourt, Nigeria
  • Average high temperature in May: 30.3°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 May: 23.7°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 May
Port Harcourt, Nigeria

Average pressure in May - Port Harcourt, Nigeria
  • Average pressure in May: 1011.2mbar

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 May
Port Harcourt, Nigeria

Average wind speed in May - Port Harcourt, Nigeria
  • Average wind speed in May: 7.5km/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 May
Port Harcourt, Nigeria

Average humidity in May - Port Harcourt, Nigeria
  • Average humidity in May: 83%

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 May
Port Harcourt, Nigeria

Average rainfall in May - Port Harcourt, Nigeria
  • Average rainfall in May: 176mm

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 May
Port Harcourt, Nigeria

Average rainfall days in May - Port Harcourt, Nigeria
  • Average rainfall days in May: 27.4 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 May
Port Harcourt, Nigeria

Average sea temperature in May - Port Harcourt, Nigeria
  • Average sea temperature in May: 28.8°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 May /
Average sunshine in May
Port Harcourt, Nigeria

Average daylight in May / Average sunshine in May - Port Harcourt, Nigeria
  • Average daylight in May: 12h and 20min

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 May: 7h and 12min

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 May
Port Harcourt, Nigeria

Average sunshine days in May - Port Harcourt, Nigeria
  • Average sunshine days in May: 2.5 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 May
Port Harcourt, Nigeria

Average UV index in May - Port Harcourt, Nigeria
  • Average UV index in May: 6

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 May
Port Harcourt, Nigeria

Average cloud cover in May - Port Harcourt, Nigeria
  • Average cloud cover in May: 51

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 May
Port Harcourt, Nigeria

Average visibility in May - Port Harcourt, Nigeria
  • Average visibility in May: 8km

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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