Last updated: August 27, 2025
May in Onitsha, Nigeria, brings warm and humid weather, with temperatures peaking at a maximum of 37°C (98°F) and averaging around 28°C (83°F). The month experiences a minimum temperature of 23°C (74°F), creating a tropical feel. Rainfall is significant, totaling 128 mm (5.0 in) over 20 days, contributing to the lush greenery typical of this season. With an humidity level of 84%, residents can expect a muggy atmosphere, making light clothing and hydration essential for navigating this vibrant month.
In May, Onitsha experiences a gentle transition into the warmer months, with temperatures reflecting a blend of warmth and humidity. The minimum temperature settles at a comfortable 23°C (74°F), making early mornings and late evenings delightful. As the month progresses, the average temperature hovers around 28°C (83°F), offering a pleasant respite from the more intense heat felt in earlier months. Daily highs peak at 37°C (98°F), though this is notably lower than the extremes of previous months, suggesting a gradual cooldown. Overall, May in Onitsha is characterized by a mix of warm days and mild nights, ideal for outdoor activities and enjoying lush surroundings.
May marks a significant transition in Onitsha, Nigeria, as the region experiences a dramatic increase in precipitation. With 128 mm (5.0 in) of rain falling over 20 days, May sets the stage for the wet season ahead, effectively doubling the rainfall compared to April's 86 mm (3.4 in). This surge is indicative of a broader trend, as the rainy season truly begins to take hold, leading into the even wetter months of June and July. The persistent precipitation during May not only nourishes the lush landscapes but also underscores the importance of this month in the climactic cycle of Onitsha, where the dry spells of earlier months quickly give way to the vibrant green of the wet season.
In May, Onitsha experiences a notable shift towards higher humidity levels, peaking at 84%. This transition is part of a broader trend observed from the beginning of the year, where humidity steadily increases from a relatively dry 31% in January to a more sultry atmosphere by mid-year. The progression is particularly pronounced as April's 73% prepares residents for the onset of the rainy season, which is characterized by even higher humidity levels in June and beyond, reaching a staggering 91% by September. May, therefore, acts as a critical juncture, ushering in the lush, moisture-laden air that defines the region's tropical climate.
In May, Onitsha experiences a notably high UV Index of 12, categorized as extreme, with a burn time of just 10 minutes. This is consistent with the trend of increasing UV exposure as the year progresses, peaking in the preceding month of April at UV Index 13. Following May, the UV Index remains similarly high throughout June and July, frequently hovering around 11 to 12, which emphasizes the need for continuous sun protection. As the seasons shift, residents and visitors alike should remain vigilant against UV rays during this period. For more detailed information, visit Onitsha UV Index.
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In Onitsha, Nigeria, the month of May shines particularly bright, with an impressive 297 hours of sunshine. This increase reflects a delightful trend, as daylight hours steadily rise from January's 254 hours to peak in May. Following this, the sunshine begins to taper off, transitioning into the summer months. The data illustrates a vibrant cycle where March holds its own with 286 hours, but the essence of May truly catches the eye, promising longer, sunnier days for the community to enjoy. As the year unfolds, residents can soak in the sun's warmth before the gradual decline in hours during the latter half of the year.
May in Onitsha, Nigeria, typically brings a notable reduction in sunny weather, with the chances of basking in sunshine dropping to 21%. This marks a continuation of a downward trend that begins in the early months of the year, where higher probabilities are seen in January (52%) and gradually wane through to April (23%). Following May, the likelihood of sun remains low as the rainy season sets in, with June at 22% and July plummeting to a mere 14%. Thus, while the early months offer glimpses of bright days, May signals the onset of a more overcast spell in Onitsha’s climate cycle.
In Onitsha, Nigeria, the daylight duration showcases a fascinating rhythm throughout the year. Beginning with 11 hours in January and February, the days gradually elongate to 12 hours by March, a trend that continues through May, June, July, August, and September. This consistent 12-hour daylight pattern reflects the region's equatorial position, ensuring almost equal day and night duration during the mid-year months. As the year progresses, daylight gradually recedes again, returning to 11 hours in October, November, and December. This cyclical pattern not only highlights the transition of seasons but also contributes to the vibrant activities of daily life in Onitsha, making it a lively hub as days stretch longer just before the rainy season.
In Onitsha, Nigeria, the month of May presents a gentle breeze with an average wind speed of 2.3 m/s (5 mph), slightly lower than the peak observed in April. This time of year marks a transitional phase, as the winds gradually begin to calm after the stronger gusts of early spring. Interestingly, the wind speeds remain relatively consistent in the months surrounding May, with June also recording a mild 1.9 m/s (4 mph). The overall trend indicates a general ebb in wind strength from April's peak, yet still maintains a delightful freshness that accompanies the warm Nigerian climate, making May a pleasant time for outdoor activities.
Weather in Onitsha varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Onitsha, focusing on differences in temperature, rainfall, humidity, and UV levels.
Comparing the weather in May and January reveals notable differences in temperature, precipitation, and humidity. In May, temperatures range from a minimum of 23°C (74°F) to a maximum of 37°C (98°F), with an average of 28°C (83°F). This month also experiences significant rainfall, with 128 mm (5.0 in) spread over 20 days and high humidity at 84%. In contrast, January presents a warmer average temperature of 29°C (85°F), but it can reach highs of 40°C (104°F). Rainfall is minimal during this month, with only 5 mm (0.2 in) over just 1 day, and the humidity is much lower at 31%. For more detailed information, you can visit Onitsha weather in January.
In comparing the weather conditions of May and February, we observe distinct differences in temperature and precipitation. May features a minimum temperature of 23°C (74°F) and an average of 28°C (83°F), with a maximum reaching 37°C (98°F), alongside significant rainfall of 128 mm (5.0 in) spread over 20 days, resulting in high humidity levels of 84%. In contrast, February boasts a slightly lower minimum temperature of 19°C (66°F) and a higher average temperature of 30°C (87°F), peaking at a maximum of 40°C (105°F). Furthermore, February experiences much less rainfall, with only 16 mm (0.6 in) occurring over just 3 days and a significantly lower humidity level of 36%. For more details on February weather, you can visit Onitsha weather in February.
In comparing the weather of March and May, both months feature a minimum temperature of around 23°C (74°F), but May tends to be slightly cooler on average, with an average temperature of 28°C (83°F) compared to March's warmer 30°C (86°F). March experiences higher maximum temperatures, reaching up to 40°C (104°F), while May sees a peak of 37°C (98°F). Precipitation patterns also differ significantly; March has just 47 mm (1.9 in) of rain over 10 days, whereas May sees a substantial increase with 128 mm (5.0 in) over 20 days, coupled with much higher humidity levels of 84% in May compared to 60% in March. For more detailed weather insights, you can refer to Onitsha weather in March.
When comparing the weather conditions of April and May, we see some noteworthy differences. In April, temperatures can soar, with average highs reaching 40°C (103°F), while May sees a more moderate maximum of 37°C (98°F). Interestingly, the minimum temperatures in both months are the same at 23°C (74°F). April also experiences higher overall humidity at 73% compared to May’s 84%, and while April has slightly less rainfall (86 mm) over fewer days (15) than May, the latter experiences more precipitation (128 mm) across approximately 20 days. For a detailed look at the April weather in Onitsha, visit Onitsha weather in April.
In May, the weather typically features warmer temperatures with averages around 28°C (83°F), peaking at a maximum of 37°C (98°F), while June sees a slight decrease in average temperature to 27°C (81°F) and a maximum of 34°C (94°F). Precipitation increases in June, with average rainfall measuring 193 mm (7.6 in) over 23 days compared to May’s 128 mm (5.0 in) over 20 days. The humidity levels are relatively similar, with May at 84% and June slightly higher at 86%. This shift in weather highlights the transition from the hotter days of May to the wetter conditions of June. For more detailed information, you can check Onitsha weather in June.
May and July exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 23°C (74°F) to a maximum of 37°C (98°F), with an average temperature of 28°C (83°F). However, this month experiences a significant amount of rainfall, totaling 128 mm (5.0 in) over 20 days, paired with a humidity level of 84%. In contrast, July has a slightly cooler temperature range, with a minimum of 22°C (72°F) and a maximum of 33°C (92°F), averaging 26°C (79°F). Rainfall is more pronounced in July, with 201 mm (7.9 in) of precipitation over 26 days and higher humidity at 87%. For more details on July's weather, you can check Onitsha weather in July.
May and August present notable differences in weather patterns. In May, temperatures range from a minimum of 23°C (74°F) to a maximum of 37°C (98°F), with an average temperature of 28°C (83°F). The month sees significant precipitation, averaging 128 mm (5.0 in) over 20 days, and humidity levels are at a high 84%. In contrast, August experiences a milder temperature range, with a minimum of 22°C (73°F) and a maximum of 33°C (91°F), while the average drops to 26°C (79°F). However, it has higher precipitation, totaling 181 mm (7.1 in) over 23 days, along with an increased humidity rate of 90%. For more details, check Onitsha weather in August.
May and September exhibit notable differences in weather patterns despite having similar minimum temperatures. In May, temperatures generally reach a maximum of 37°C (98°F) with an average of 28°C (83°F) and experience around 128 mm (5.0 in) of precipitation over approximately 20 days, accompanied by high humidity at 84%. In contrast, September displays milder conditions, with a maximum temperature of 34°C (93°F) and an average of 26°C (79°F). However, it experiences significantly higher rainfall, totaling 249 mm (9.8 in) across 26 days, and even higher humidity levels at 91%. This makes September a wetter and more humid month compared to May. For more details, check out Onitsha weather in September.
May and October present distinct weather patterns, with both months featuring similar minimum temperatures around 23°C (73-74°F). However, May typically enjoys a higher average temperature of 28°C (83°F) compared to October's 27°C (81°F), and May can reach maximum highs of 37°C (98°F), while October peaks at 34°C (93°F). Precipitation is also more prevalent in October, with 173 mm (6.8 in) falling over 24 days, compared to May's 128 mm (5.0 in) over 20 days. Additionally, October exhibits increased humidity levels at 90%, slightly higher than May's 84%. For a detailed look at weather specifics, refer to Onitsha weather in October.
May and November exhibit similar minimum and average temperatures, both ranging from 23°C to 28°C. However, May generally experiences hotter maximum temperatures, peaking at 37°C, compared to November's maximum of 35°C. Precipitation patterns also differ significantly; May boasts a much higher rainfall of 128 mm over 20 days, while November sees a mere 30 mm over 8 days, resulting in drier conditions. Humidity levels remain relatively close, with May at 84% and November at 82%. For more details, you can check Onitsha weather in November.
In May, the weather is characterized by higher humidity and frequent rainfall, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 37°C (98°F). The month sees an average temperature of 28°C (83°F) and experiences around 128 mm (5.0 in) of precipitation over 20 days, contributing to a muggy atmosphere with humidity levels at 84%.
In contrast, December presents a drier and less humid environment, with a minimum temperature of 18°C (65°F) and a maximum of 38°C (100°F). The average temperature is slightly warmer at 29°C (84°F), but it features negligible precipitation of just 5 mm (0.2 in) with no rainy days, leading to a more comfortable humidity level of 63%. For more insights into December's weather conditions, visit Onitsha weather in December.
As May unfolds in Onitsha, the city experiences a distinct shift in its climate, marked by high temperatures and considerable humidity that can leave residents feeling the heat. With frequent rainfall throughout the month, this period stands out from the drier, cooler months that precede it, introducing a lush vibrancy to the landscape. The increased precipitation also contributes to the humidity levels, making it essential to stay hydrated and prepared for the occasional downpour. Overall, May brings a dynamic climate that showcases the beauty and intensity of the rainy season in Onitsha, inviting both locals and visitors to embrace the warmth and showers. For more insights, explore the full details at Onitsha Climate.