Climate and monthly weather forecast
Bonny, Nigeria

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The climate of Bonny

Bonny, located in Nigeria, is under the grip of a Tropical Monsoon climate, as denoted by its Köppen climate classification - Am. The dominating forces of this climatic condition paint a vivid picture of intense heat and significant rainfall throughout the year.

Monthly average high temperatures remain steady around 26°C (78.8°F) to 31°C (87.8°F) throughout the year, with the highest usually appearing around March, April and December when the temperature can reach up to 31°C (87.8°F). The average low temperatures, on the other hand, vary less dramatically, hovering in a range of 23.5°C (74.3°F) to 26°C (78.8°F). The most moderate months being July and August.

Parallel to this, the region also witnesses high relative humidity, with monthly averages ranging between 73% to 86% over the year. The atmosphere gets significantly humid between May and August, with average humidity crossing the 80% mark.

A notable aspect of Bonny's climate is its heavy rainfall. The city experiences significant precipitation, particularly during the summer months. The annual pattern of rainfall tends to peak at 374mm (14.72") in July, then slowly decline, reaching its lowest measure at 34mm (1.34") in December. Coupled with the rain, cloud cover also shows a similar trend, with the sky being most clouded from June to August.

The best time to visit Bonny

With the understanding of Bonny's climate, the period between December and March comes forward as the suitable time for a visit. During these months, there's a significant decline in rainfall, marking the arrival of the region’s driest weather. Furthermore, the cloud cover% is at its lowest, ensuring more sunshine hours. Also noteworthy is the optimal visibility, standing at 10km (6.2mi) during these months, that maximizes the opportunity to explore the city's vistas unobstructively.

The worst time to visit Bonny

Conversely, the span from June to August consistently appears as the least favorable time to visit Bonny, mainly due to the increased rainfall and humidity during these months. The showers often increase to extreme measures, particularly in July when the rainfall reaches a whopping 374mm (14.72"), and the rain frequents 29 to 30 days of the month making it inconvenient for outdoor activities.

Spring weather in Bonny

In the context of Bonny’s climate, 'spring-like' conditions prevail from February to April. Noteworthy to highlight are the temperatures that remain high, enticing the mercury to levels up to 30°C (86°F) to 31°C (87.8°F). Moreover, rainfall during this time starts to step-up from February’s modest 52mm (2.05"), reaching to a substantial 84mm (3.31") by April.

Summer weather in Bonny

The months from May to August characterize the 'Summer' period in Bonny. This span of time brings forth the most intense weather conditions of the year. Heavy rainfall, starting from 140mm (5.51") in May and peaking to 374mm (14.72") in July, combines with a high relative humidity of up to 86% in the same month.

Autumn weather in Bonny

The transition from September to November, reminiscent of an 'Autumn' period, brings forth a degree of relief with descending rainfall figures, starting from 263mm (10.35") in September and dropping to 113mm (4.45") by November. In addition, the region experiences a gradual rise in sunlight hours, making these months more pleasant compared to the severe summer.

Winter weather in Bonny

Annual 'Winter-like' conditions are mainly evident in Bonny during the months of December and January. While winter here is punctuated by high temperatures within 30°C (86°F) to 31.6°C (88.9°F), these months are the driest in comparison to the year, with rainfall hitting the annual low point in December at 34mm (1.34"). Not to forget, the humidity also lowers, providing a relatively comfortable and dry climate.

Weather in January

The year commences in Bonny, Nigeria, with peak sunshine hours reaching 9.4 hours a day and 11.5 days. Weather patterns during January typically lean towards dry conditions. However, rainfall in the region is not irregular, with some showers expected even in the drier months. Weather in January »

Weather in February

Jumping into February, Bonny experiences a slight drop in temperature from the previous month, with the maximum temperature sinking to 31.3°C (88.3°F) and the minimum elevating to 25.5°C (77.9°F). There is an increase in rainfall, paving the way for the upcoming wet season. Weather in February »

Weather in March

March marks the onset of the rainfall season in Bonny, Nigeria. The rainfall jumps to 75mm (2.95"), a noticeable increase from February. Cloudiness starts to dominate the sky, dimming the sunshine hours a bit. Despite the increased rainfall, the sea temperature holds its warm touch. Weather in March »

Weather in April

In April, the temperatures in Bonny, Nigeria descend mildly from March. Now the maximum temperature is 30.8°C (87.4°F) and the minimum 25.8°C (78.4°F). Rain showers further amplify by 84mm (3.31"), making April one of the wet months in the region. Weather in April »

Weather in May

May, in Bonny, Nigeria, showcases a significant uplift in rainfall. The region receives abundant rainfall of 140mm (5.51"). The temperatures continue their descent, signifying the peak of the rainy season. The climatic conditions favor the flora of the region, resulting in a vibrant and lush landscape. Weather in May »

Weather in June

The month of June in Bonny manifests the highest levels of rainfall throughout the year - a noticeable 247mm (9.72"). Moreover, the relative humidity marks its peak for the year, and sea temperatures dip slightly, indicating the severity of the rainy season. Weather in June »

Weather in July

Weather in Bonny, Nigeria during July follows a similar tread, with heavy rainfall of 374mm (14.72"), marking the month's highest for the year. However, a slight rise in sunshine hours brings balance to the climate, taking the edge off the persistent rain showers. Weather in July »

Weather in August

Entering August, the city of Bonny experiences a slight fall in rainfall to 295mm (11.61"), indicating a slow shift towards the dry season. Nevertheless, the weather remains consistently warm and humid. The sea temperature still maintains its inviting warmth, attracting more visitors to the city's beautiful shores. Weather in August »

Weather in September

September in Bonny unveils a further decrease in rainfall down to 263mm (10.35"), signaling the departure of the predominant rainy season. The temperatures stay fairly steady, with a maximum of 27.3°C (81.1°F) and a minimum of 23.8°C (74.8°F). Weather in September »

Weather in October

October in Bonny, Nigeria marks a significant shift in the weather with a visible decrease in rainfall to 179mm (7.05"). Moreover, an increase in sunshine hours imbues the city with a bright and cheerful ambiance. Meanwhile, the sea temperature starts to pick up, rejuvenating sea-based activities. Weather in October »

Weather in November

November marks the onset of the dry season in Bonny, Nigeria, with a steep decline in rainfall to 113mm (4.45"). Concurrently, sunshine hours peak at 8.6 hours a day. The city transitions into a drier and sunnier climate, after long months of rainfall. Weather in November »

Weather in December

Finally, December in Bonny witnesses the lowest rains of the year, concluded at 34mm (1.34"). The weather turns significantly drier, with the maximum temperature rising to 31.6°C (88.9°F) and the minimum at 25°C (77°F). The city celebrates the festive season under the clear, blue skies and comfortably warm weathers. Weather in December »
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Frequently asked questions

What is the hottest time of year in Bonny?

January, on average, is the warmest month in Bonny, Nigeria, registering a high temperature of 31.8°C (89.2°F) and a low of 24.9°C (76.8°F).

What is the least humid month in Bonny?

The months with the lowest humidity are January and December, with an average relative humidity of 73%.

How much does it rain in Bonny?

Throughout the year, in Bonny, there are 300.7 rainfall days, and 1894mm (74.57") of precipitation is accumulated.

What is the month with the highest UV index in Bonny?

January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index.

What is the month with the warmest sea water in Bonny?

With an average sea temperature of 29.1°C (84.4°F), April is the month with the warmest seawater.

When are the longest days in Bonny?

June has the longest days of the year in Bonny, Nigeria, with an average of 12h and 24min of daylight.

What are the months with the lowest UV index in Bonny?

The months with the lowest UV index in Bonny, Nigeria, are June through September, with an average maximum UV index of 6.

What part of the year is the coldest in Bonny?

The coldest month in Bonny, Nigeria, is July, with an average high-temperature of 26.8°C (80.2°F) and an average low-temperature of 23.5°C (74.3°F).

What is the most humid month in Bonny?

July is the most humid month, with an average relative humidity of 86%.

What is the rainiest month in Bonny?

July is the month with the most rainfall in Bonny. Rain falls for 29.9 days and accumulates 374mm (14.72") of precipitation.

What is the month with the least sunshine in Bonny?

July and August, with an average of 4.4h of sunshine, are months with the least sunshine in Bonny, Nigeria.

What is the month with the coldest sea water in Bonny?

With an average sea temperature of 26.3°C (79.3°F), August is the month with the coldest seawater in Bonny.

What is the driest month in Bonny?

December is the month with the least rainfall in Bonny. Rain falls for 17.4 days and accumulates 34mm (1.34") of precipitation.

What is the month with the shortest days in Bonny?

December has the shortest days of the year in Bonny, Nigeria, with an average of 11h and 54min of daylight.

Is there Daylight Saving Time (DST) in Bonny?

Bonny does not utilize Daylight Saving Time (DST). WAT timezone is used over the entire year.

What month has the most sunshine in Bonny?

With an average of 9.5h of sunshine, December has the most sunshine of the year in Bonny.

Average temperature
Bonny, Nigeria

Average temperature - Bonny, Nigeria

The warmest month (with the highest average high temperature) is January (31.8°C).
The month with the lowest average high temperature is July (26.8°C).

The month with the highest average low temperature is March (26°C).
The coldest months (with the lowest average low temperature) are July and August (23.5°C).

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Average pressure
Bonny, Nigeria

Average pressure - Bonny, Nigeria

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
Bonny, Nigeria

Average wind speed - Bonny, Nigeria

The windiest month (with the highest average wind speed) is August (12.1km/h).
The calmest month (with the lowest average wind speed) is October (8.8km/h).

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Average humidity
Bonny, Nigeria

Average humidity - Bonny, Nigeria

The month with the highest relative humidity is July (86%).
The months with the lowest relative humidity are January and December (73%).

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Average rainfall
Bonny, Nigeria

Average rainfall - Bonny, Nigeria

The wettest month (with the highest rainfall) is July (374mm).
The driest month (with the least rainfall) is December (34mm).

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Average rainfall days
Bonny, Nigeria

Average rainfall days - Bonny, Nigeria

The month with the highest number of rainy days is July (29.9 days).
The month with the least rainy days is January (16.7 days).

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Average sea temperature
Bonny, Nigeria

Average sea temperature - Bonny, Nigeria

The best month for swimming (with the highest average sea temperature) is April (29.1°C).
The coldest month (with the lowest average sea temperature) is August (26.3°C).

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Average daylight / Average sunshine
Bonny, Nigeria

Average daylight / Average sunshine - Bonny, Nigeria

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 54min).

The month with the most sunshine is December (Average sunshine: 9h and 30min).
The months with the least sunshine are July and August (Average sunshine: 4h and 24min).

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Average sunshine days
Bonny, Nigeria

Average sunshine days - Bonny, Nigeria

The month with the most sunshine days is January (11.5 days).
The months with the least sunshine days are July and August (0.8 days).

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Average UV index
Bonny, Nigeria

Average UV index - Bonny, Nigeria

The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).

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Average visibility
Bonny, Nigeria

Average visibility - Bonny, Nigeria

The months with the highest visibility are January, February, March, April and December (10km).
The months with the lowest visibility are May, June, July, August, September, October and November (9km).

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Bonny, Nigeria

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