Climate and monthly weather forecastIwo, Nigeria
Climate and monthly weather forecast
The climate of Iwo
Dominating the climate picture in Iwo, Nigeria is the Aw Köppen climate group, more generally known as a tropical savanna climate. Situated in southwestern Nigeria, Iwo straddles the geographical line where comfort and challenge meet throughout the year. The tropical savanna climate is characterized by a distinct wet and dry season, with an almost constant sweltering heat.Throughout yearly cycles, temperatures fluctuate between 21.1°C (70°F) and 37.1°C (98.8°F). Exchange of degrees is not drastic, maintaining a steady warmth with peak highs in December and February and a slightly cooler reprieve between July to September.
Iwo's rainfall pattern displays a clear stratification, with an intense wet season between March and October that sees totals ranging from 49mm (1.93") in March to a maximum of 117mm (4.61") in September. Contrastingly, a dry spell prevails between November and February, accumulating merely 7mm (0.28") to 27mm (1.06") of rainfall.
Humidity levels rise on the heels of the wet season, soaring from 46% in January to as much as 88% between May and September. A decrease is tangibly felt in October, embarking on a slide back to drier conditions.
As the tropical canvas of Iwo is painted throughout the year, the intensity of sunlight maintains a reasonably balanced stroke. An average annual daylight hour array lies between 11.7 hours and 12.6 hours. Sunshine duration, however, takes a dip in the wet season, dwindling from 9.8 hours in January to 4.3 hours by August.
The best time to visit Iwo
The optimal period to explore Iwo's tropical canvass falls during the dry season, from November to February. During these months, rainfall substantially lessens, allowing more opportunities to venture outdoors. Weak winds basicly between 4.4 Kph and 6 Kph, along with 9.9 hours of sunshine in December, bless the region during this reprieve from the wetness.Despite the dry conditions, it is crucial for visitors to prepare for the prevailing hot weather, as even the coolest month, July, averages a high of 28.3°C (82.9°F). Clear skies dominate, indicated by the 14% cloud coverage in December, ensuring a higher UV index of 7 during this period. Therefore, proper sun protection is necessary despite the favorable weather.
The worst time to visit Iwo
It would be best to steer clear of Iwo from March to October. The weather during these months is harsh, marked by high humidity levels of 69% to 88% and hefty rainfall amounts measuring between 49mm (1.93") and 117mm (4.61"). The accompanying higher cloud coverage between 37% and 79% lends a gloomy touch to the atmosphere, further dimming the appeal of outdoor activities.Moreover, with pressure levels averaging 1009.1mb to 1013.2mb, the likelihood of outbreaks of precipitation increases dramatically. Frequent thunderstorms and brief, heavy downpours typify the wet season, possibly resulting in flash floods that would be a hindrance for sightseeing activities.
Spring weather in Iwo
In a tropical savanna climate, the traditional four seasons aren't present. However, there are two distinct periods - wet and dry. The transitioning between the two represents a sort of spring season. February to April is one such transition, with rainfall increasing from 20mm (0.79") to 90mm (3.54"). The temperatures cautiously cool from a high of 36.1°C (97°F) in January to a still sweltering 34.9°C (94.8°F) in April.The sunshine hours daily decrease from 9.4 hours in February to 8.7 hours in April, and daylight hours linger around 12.1 hours to 12.3 hours, rendering just the right amount of daylight for outdoor activities. The wind speed also marginally increases, ranging from 6.2 Kph in February to 7.2 Kph in April, giving a gentle, sweeping relief from the humidity.
Summer weather in Iwo
The full grip of the wet season from May to August in Iwo could represent the summer months. Humidity levels surge toward 80% to 88%, and temperatures fluctuate between a high of 30.9°C (87.6°F) to 28.3°C (82.9°F). Rainfall peaks from 100mm (3.94") to 105mm (4.13"), making recreational activities a challenge.Despite the rainy conditions, the daylight hours hold steady around 12.5 hours to 12.4 hours. The dense cloud cover, however, reducing the amount of direct sunlight, with sunshine hours dropping to a yearly low of 6 hours. With the UV index reducing to as low as 5 due to cloud cover, it's still important to wield ample sun protection on the brighter days.
Autumn weather in Iwo
The tail end of the high rainy season, from September to November, can be equated to the autumn season in Iwo. Rainfall lessens from 117mm (4.61") to 27mm (1.06"), and there's a subtle rise in temperatures, with the high in November capping at 31.5°C (88.7°F).The daily sunshine duration, from a yearly low of 4.3 hours in August, starts to lengthen to 7.5 hours by November. However, daylight hours start dwindling down to about 12.2 hours in September to 12 hours by November, indicating the onset of the dry season. Wind speeds also decrease, moving from 6.8 Kph in September to 4.8 Kph in November.
Winter weather in Iwo
Capped by drier, less humid conditions, the blissful dry season from December to January in Iwo resembles the winter season. Temperatures remain high but relatively bearable, fluctuating between 21.3°C (70.3°F) and 37.1°C (98.8°F). Rain precipitation is remarkably scarce, plummeting to an annual low of 5mm (0.2") in December.Daylight hours hold steady at approximately 11.7 hours, and the days brighten with a revival in sunshine duration to 9.8 hours to 9.9 hours in December and January. The winter winds hover around 4.7 Kph, barely stirring the air, yet offering a mild reprieve from the persistent heat.
Weather in January
Kicking off the year, January in Iwo, Nigeria brings less humidity compared to the forthcoming months. The temperatures remain relatively high, and the relatively lower humidity lessens the sense of heat. However, despite fewer rainy days, rainfall can be unpredictable. Weather in January »Weather in February
As the calendar turns to February, an increase in both temperature and humidity lends the weather in Iwo a distinctly tropical feel. The sunlight gradually lessens, preparing for the rainier months ahead. Rainfall sees a significant spike from 7mm (0.28") in January to 20mm (0.79") this month, indicating the transition from the drier to the wet season. Weather in February »Weather in March
March sees the onset of the rainy season in earnest, with wetter and more humid conditions prevailing in Iwo. The increased cloud cover contributes to a dip in sunshine hours and temperatures. Blustery intervals become more frequent as the wind speed edges up to 7.1km/h (4.4mph). Weather in March »Weather in April
April in Iwo witnesses a continued escalation in rainfall and humidity. The landscape appears lush owing to the substantial precipitation, and the weather exhibits a definite wet season character. The UV index remains constant despite an increase in cloud cover, advising caution during daytime hours. Weather in April »Weather in May
The weather in May continues to reflect the wet season in Iwo, with high humidity and increased rainfall manifesting as key characteristics. The daylight hours start to lengthen subtly, but less sunlight reaches the ground due to the thick clouds. Weather in May »Weather in June
In June, the weather in Iwo tends towards wet and muggy conditions. The rainfall and humidity reach near-perfect levels, but the rain leads to slightly cooler temperatures. This month marks the peak of the wet season, characterized by the most substantial rainfall of 104mm (4.09"). Weather in June »Weather in July
July continues the monsoon trend in Iwo, bringing with it increased rainfall and cloud cover. Despite the pervading humidity, the overall weather appears a bit agreeable due to slightly cooler temperatures. Rainfall moderates a bit from the peak in June, receding to 105mm (4.13"). Weather in July »Weather in August
August in Iwo witnesses a decrease in temperature, accompanying the monsoon-style weather pattern. With the rainfall persisting and the cloud cover accounting for the highest all year, sunshine hours dwindle. Nevertheless, the highlight is the mild temperatures, which range between 21.5°C (70.7°F) and 28.3°C (82.9°F). Weather in August »Weather in September
As September sets in Iwo, the weather transitions, with rainfall exhibiting a decline compared to the earlier months. Temperature levels start to rise, hinting at warmer days ahead. While the humidity remains high, the cloud cover starts reducing, leading to an increase in sunshine hours. Weather in September »Weather in October
In October, Iwo begins to experience slight relief from the monsoon conditions of the previous months. The rainfall decreases and a greater proportion of sunshine peeks through the clouds. This phase brings along an uptick in temperature and a gradual return of drier conditions. Weather in October »Weather in November
November in Iwo introduces a definitive change, marking the onset of the dry season. The city experiences less rainfall coupled with increased sunshine hours. Despite the decrease in rainfall, temperatures continue their upwards trajectory, lending a warmer hue to the weather. Weather in November »Weather in December
December witnesses an affirmation of the dry season in Iwo, with incredibly low rainfall and reduced humidity. Bringing the year to a close, this month observes a significant decrease in cloud cover, coinciding with a proliferation of sunshine hours. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Iwo, Nigeria
The warmest month (with the highest average high temperature) is February (37.1°C).
The month with the lowest average high temperature is August (28.3°C).
The month with the highest average low temperature is March (24.1°C).
The coldest month (with the lowest average low temperature) is January (21.1°C).
Average pressure
Iwo, Nigeria
- Average pressure in January:
1010.5mbar - Average pressure in February:
1009.3mbar - Average pressure in March:
1009.1mbar - Average pressure in April:
1009.4mbar - Average pressure in May:
1010.7mbar - Average pressure in June:
1012.5mbar
- Average pressure in July:
1013.2mbar - Average pressure in August:
1013.1mbar - Average pressure in September:
1012.5mbar - Average pressure in October:
1011mbar - Average pressure in November:
1010.1mbar - Average pressure in December:
1010.5mbar
The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is March (1009.1mbar).
Average wind speed
Iwo, Nigeria
- Average wind speed in January:
5.3km/h - Average wind speed in February:
6.2km/h - Average wind speed in March:
7.1km/h - Average wind speed in April:
7.2km/h - Average wind speed in May:
6.5km/h - Average wind speed in June:
6.5km/h
- Average wind speed in July:
6.7km/h - Average wind speed in August:
6.8km/h - Average wind speed in September:
5.5km/h - Average wind speed in October:
4.8km/h - Average wind speed in November:
4.4km/h - Average wind speed in December:
4.7km/h
The windiest month (with the highest average wind speed) is April (7.2km/h).
The calmest month (with the lowest average wind speed) is November (4.4km/h).
Average humidity
Iwo, Nigeria
The months with the highest relative humidity are July, August and September (88%).
The month with the lowest relative humidity is January (46%).
Average rainfall
Iwo, Nigeria
The wettest month (with the highest rainfall) is September (117mm).
The driest month (with the least rainfall) is December (5mm).
Average rainfall days
Iwo, Nigeria
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
11.3 days - Average rainfall days in March:
20.7 days - Average rainfall days in April:
25.3 days - Average rainfall days in May:
25.9 days - Average rainfall days in June:
22.8 days
- Average rainfall days in July:
23.2 days - Average rainfall days in August:
23.3 days - Average rainfall days in September:
25 days - Average rainfall days in October:
25.6 days - Average rainfall days in November:
16.6 days - Average rainfall days in December:
3.6 days
The month with the highest number of rainy days is May (25.9 days).
The month with the least rainy days is December (3.6 days).
Average daylight / Average sunshine
Iwo, Nigeria
- Average daylight in January:
11h and 42min - Average daylight in February:
11h and 54min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 18min - Average daylight in May:
12h and 30min - Average daylight in June:
12h and 36min
- Average daylight in July:
12h and 30min - Average daylight in August:
12h and 24min - Average daylight in September:
12h and 12min - Average daylight in October:
12h and 0min - Average daylight in November:
11h and 48min - Average daylight in December:
11h and 42min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 42min).
- Average sunshine in January:
9h and 48min - Average sunshine in February:
9h and 24min - Average sunshine in March:
8h and 54min - Average sunshine in April:
8h and 42min - Average sunshine in May:
8h and 0min - Average sunshine in June:
6h and 36min
- Average sunshine in July:
4h and 48min - Average sunshine in August:
4h and 18min - Average sunshine in September:
5h and 24min - Average sunshine in October:
7h and 30min - Average sunshine in November:
9h and 12min - Average sunshine in December:
9h and 54min
The month with the most sunshine is December (Average sunshine: 9h and 54min).
The month with the least sunshine is August (Average sunshine: 4h and 18min).
Average sunshine days
Iwo, Nigeria
- Average sunshine days in January:
23.3 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
7.1 days - Average sunshine days in April:
3.8 days - Average sunshine days in May:
3.4 days - Average sunshine days in June:
5.4 days
- Average sunshine days in July:
6.7 days - Average sunshine days in August:
6.2 days - Average sunshine days in September:
3.6 days - Average sunshine days in October:
3.9 days - Average sunshine days in November:
8.8 days - Average sunshine days in December:
23.4 days
The month with the most sunshine days is December (23.4 days).
The month with the least sunshine days is May (3.4 days).
Average UV index
Iwo, 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 July and August (UV index 5).
Average cloud cover
Iwo, Nigeria
The month with the most cloud cover is August (Cloud cover 79).
The month with the least cloud cover is December (Cloud cover 14).
Average visibility
Iwo, Nigeria
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 (6km).





