May Weather in Nairobi, Kenya

Last updated: August 21, 2025

Experience the dynamic climate of Nairobi, Kenya in May, where temperatures oscillate from a comfortable minimum of 12°C (54°F) to a balmy maximum of 28°C (82°F), averaging around 19°C (67°F). This month greets residents and visitors with a high humidity level of 71%, creating a lush atmosphere. However, be prepared for the frequent rains, with 133 mm (5.2 in) of precipitation spread over 19 days, making May one of the wetter months of the year. Enjoy the vibrant greenery and rich wildlife this season brings, as Nairobi transforms under the nourishing rains.

May Temperature in Nairobi

In May, Nairobi experiences a mild shift in temperatures, with a minimum of 12°C (54°F) and a maximum of 28°C (82°F). The average temperature hovers around 19°C (67°F), making it one of the cooler months in the city. As the rainy season approaches, the temperatures dip slightly compared to the warmer months of February and March, where highs reach up to 31°C (88°F). This gradual decline indicates a transition towards cooler weather, with May serving as a refreshing respite before the chill of June sets in. Ideal for outdoor explorations, the pleasant climate allows residents and visitors alike to enjoy the lush greenery that flourishes during the onset of the rains.

May Weather in Nairobi: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Nairobi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nairobi, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec686970696765646466686767
Data source: Temperature data for Nairobi generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Nairobi

May in Nairobi brings a significant amount of precipitation, tallying 133 mm (5.2 in) over 19 days. As the rainy season peaks, this month follows a trend established by the preceding months, particularly April, which saw even heavier rainfall at 146 mm (5.7 in) over 23 days. The lush greenery characteristic of Nairobi flourishes during this time, bolstered by the consistent moisture. Notably, May stands out as a crucial month in the rainy season, contributing to the overall average rainfall that shapes the city’s climate. Following May, the precipitation begins to taper off, signaling the transition to the drier months ahead.

May Precipitation Trends in Nairobi

The chart displays monthly precipitation patterns in Nairobi, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Nairobi, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec36338014613355212636699276
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Nairobi

In Nairobi, Kenya, May marks a significant shift in humidity levels, with the average rising to 71%—a noticeable increase from the drier months preceding it. Following a trend of dwindling humidity from January to March, the city experienced a slight uptick in April, suggesting the onset of the wet season. As May arrives, the atmosphere becomes more saturated, setting the stage for the heavier rainfalls that characterize this time of year. This transition reflects not only the seasonal patterns but also bridges into the even more humid months of June and October, where averages peak at 70% and 76%, respectively. The gradual rise through the spring culminates in a sultry environment, preparing the landscape for vibrant growth and lush greenery.

May Average Humidity in Nairobi

This chart illustrates the average monthly humidity levels in Nairobi, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Nairobi is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%53%49%54%71%70%63%60%63%76%89%84%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Nairobi

In May, Nairobi experiences a notably high UV Index of 13, classifying the exposure as extreme with a burn time of just 10 minutes. This marks a slight decrease from the peak winter months of February to April, where the UV Index consistently hovers around 16. However, May remains part of the intense UV season that characterizes Nairobi, alongside January through April and continues into August and September. As we transition to June, there’s a gradual decline in UV intensity, but the risk of sunburn remains significant. Therefore, it's essential for residents and visitors to stay vigilant during outdoor activities. For a full overview of UV levels throughout the year, check out Nairobi UV Index.

Maximum UV Index Levels in Nairobi for May

The chart shows the monthly maximum UV Index (UVI) for Nairobi in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Nairobi typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151616161311111314141313
Data source: Nairobi May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Nairobi

May in Nairobi, Kenya, basks in a delightful 336 hours of sunshine, contributing to a vibrant atmosphere that marks the transition into the cooler months. This sunny month follows a strong April of 314 hours, showcasing a remarkable trend as the city approaches its mid-year peak. As we look back through the year, March shines brightly with 340 hours, hinting at the onset of the warm season, while June offers a slightly cooler respite with 316 hours. Notably, the year rounds off with exceptionally sunny days in October and December, boasting over 340 hours each, reaffirming Nairobi's reputation as a gateway to abundant sunshine. Overall, May stands out as a vital link in the chain of Nairobi's sun-kissed months, emphasizing a consistent pattern of brightness throughout the year.

Monthly Sunshine Duration in Nairobi: May Highlighted

The May sunshine duration represents the total number of hours Nairobi experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec289h313h340h314h336h316h319h330h330h343h330h344h
Data source: Nairobi May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nairobi During May

As May rolls in, Nairobi experiences a notable dip in the likelihood of sunny weather, with only an 18% chance of sunshine. This marks a significant decline from the previous months, culminating a series of higher probabilities in early the year. After a relatively brighter January at 46%, the chance of sun gradually declines through the months, reaching a low point just before the onset of the cool season. In contrast, after May, the chances of clear skies see a slight uptick again in June and beyond, but remain low for the mid-year months. This trend indicates that May's cloudy weather is typically a precursor to the heavier rains and cooler temperatures that characterize Nairobi's climate during the following months.

Percentage of Sunny Days in May in Nairobi

The chart illustrates the percentage of sunny days in Nairobi throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Nairobi experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%32%43%26%18%27%11%29%25%34%41%28%
Data source: Nairobi May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nairobi in May

In Nairobi, Kenya, May continues the city's trend of consistent 12 hours of daylight that spans the entire year. This remarkable uniformity in daylight duration means that the rhythm of daily life in Nairobi is rarely disrupted by seasonal shifts, allowing locals and visitors alike to enjoy outdoor activities and cultural experiences at any time. As the month brings lush greenery from the ongoing rainy season, the steady daylight hours enhance the vibrant atmosphere, making it an ideal time to explore the city’s stunning landscapes and rich biodiversity.

Average Daylight Hours in Nairobi for May

The chart illustrates the variation in daylight duration in Nairobi throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 9m12h 8m12h 5m12h 4m12h 3m12h 2m12h 2m12h 3m12h 5m12h 7m12h 9m12h 10m
Data source: Nairobi daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Nairobi

In Nairobi's climate, May brings the calmest winds of the year, with an average speed of only 1.8 m/s (4 mph), notably slower than the preceding months. This decline in wind speed signals a transition from the breezy conditions of March and April, which enjoyed averages of 3.5 m/s (8 mph) and 2.5 m/s (5 mph) respectively. As the city moves toward the cooler, drier months of June and July, where winds slightly pick up again to 2.0 m/s (5 mph) and 1.8 m/s (4 mph), May serves as a gentle reminder of the shifting patterns in Nairobi's seasonal weather. The overall trend reveals a fluctuation in wind speeds as the year progresses, providing residents and visitors alike with a unique experience that reflects the city's dynamic climate.

Average May Wind Speed in Nairobi

The chart displays monthly wind speed patterns in Nairobi, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.33.52.51.8 m/s2.01.82.12.42.93.03.4
Data source: Nairobi May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Nairobi Compares to Other Months

Weather in Nairobi varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Nairobi, focusing on differences in temperature, rainfall, humidity, and UV levels.

When comparing the weather in May and January, notable differences emerge. May experiences a minimum temperature of 12°C (54°F) and can reach up to 28°C (82°F), averaging around 19°C (67°F). This month is characterized by higher humidity at 71%, along with significant rainfall of 133 mm (5.2 in) over 19 days. In contrast, January offers slightly warmer temperatures, with a minimum of 11°C (52°F) and a maximum of 30°C (86°F), averaging 20°C (68°F). However, it is much drier, with only 36 mm (1.4 in) of precipitation occurring over just 6 days and a lower humidity level of 64%. For a detailed look at January weather, visit Nairobi weather in January.

When comparing the weather in May and February, notable differences emerge. May generally presents cooler temperatures with a minimum of 12°C (54°F) and an average of 19°C (67°F), while February, despite having a similar minimum temperature of 11°C (53°F), boasts an average of 21°C (70°F) and can reach as high as 31°C (88°F). Additionally, May is significantly wetter, receiving 133 mm (5.2 in) of precipitation over 19 days, compared to February's milder 33 mm (1.3 in) over just 7 days. Humidity levels also vary, with May maintaining a higher humidity at 71%, contrasting with February's drier 53%. For more detailed insights on February weather, check out Nairobi weather in February.

May and March present contrasting weather patterns. In March, temperatures are generally warmer with an average high of 32°C (90°F) compared to May's maximum of 28°C (82°F). March also sees slightly higher low temperatures with a minimum of 13°C (55°F) versus May's 12°C (54°F). However, May is characterized by significantly more precipitation, totaling 133 mm (5.2 in) over 19 days, while March only receives 80 mm (3.1 in) of rain across 12 days. Additionally, May's humidity is notably higher at 71%, compared to March's 49%. For more details on March weather, visit Nairobi weather in March.

April and May present distinct differences in weather patterns. In April, the temperatures range from a minimum of 14°C (58°F) to a maximum of 31°C (87°F), with an average of 20°C (69°F). This month sees slightly more precipitation at 146 mm (5.7 in) over 23 days, along with a lower humidity of 54%. In contrast, May has a milder temperature range from 12°C (54°F) to a maximum of 28°C (82°F), with an average of 19°C (67°F). However, it experiences a higher total rainfall of 133 mm (5.2 in) over 19 days and increased humidity at 71%. Overall, while April tends to be warmer and wetter, May is cooler and more humid. For more detailed insights, you can check Nairobi weather in April.

In comparing the weather between May and June, May generally boasts higher temperatures and more humid conditions. With average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 28°C (82°F), May's warm climate contrasts with June’s generally cooler temperatures, which range from a low of 10°C (51°F) to a high of 26°C (80°F). Additionally, May experiences significantly more precipitation, totaling 133 mm (5.2 in) over 19 days, while June sees a notable decrease to just 55 mm (2.2 in) across 10 days. The humidity remains relatively similar, at 71% in May and 70% in June. For more detailed insights, you can check the Nairobi weather in June.

May and July exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 28°C (82°F), with an average of 19°C (67°F). The month experiences significant rainfall, totaling 133 mm (5.2 in) over 19 days, contributing to a higher humidity level of 71%. In contrast, July sees slightly cooler temperatures with a minimum of 9°C (48°F) and a maximum of 27°C (81°F), and an average of 18°C (64°F). Precipitation in July is much lighter, with only 21 mm (0.8 in) falling over just 5 days, resulting in a lower humidity of 63%. For more specific details, you can refer to Nairobi weather in July.

May and August weather present distinct characteristics, showcasing the transition in seasons. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 28°C (82°F), with an average of 19°C (67°F). This month experiences significant rainfall, accumulating 133 mm (5.2 in) over 19 days, accompanied by a humidity level of 71%. In contrast, August offers slightly cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 29°C (85°F), while the average drops to 18°C (65°F). Rainfall is minimal in August, with only 26 mm (1.0 in) measured over just 6 days, resulting in a lower humidity level of 60%. For more specific details, you can refer to Nairobi weather in August.

May and September share similar average temperatures, with both months averaging around 19°C (66°F) and reaching highs of 28°C (82°F). However, May tends to be wetter, with a substantial 133 mm (5.2 in) of precipitation over 19 days, compared to just 36 mm (1.4 in) over 7 days in September. Additionally, the humidity in May is higher at 71%, while September sees a slight drop to 63%. For more detailed information, check out Nairobi weather in September.

May and October in Nairobi exhibit some similarities and differences in weather patterns. Both months start with a minimum temperature of 12°C (54°F), but October enjoys a slightly warmer average temperature of 20°C (68°F) compared to May's 19°C (67°F). Maximum temperatures peak at 29°C (85°F) in October, which is just a degree higher than May's maximum of 28°C (82°F). However, precipitation levels differ significantly; May experiences 133 mm (5.2 in) of rain over 19 days, while October sees a much drier climate with only 69 mm (2.7 in) over 13 days. Additionally, October has a higher humidity level of 76%, compared to May's 71%. For more specifics, you can check out the details on Nairobi weather in October.

May and November present distinct yet somewhat similar weather patterns. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 28°C (82°F), with an average of 19°C (67°F). It is a wetter month, receiving about 133 mm (5.2 in) of precipitation over 19 days, accompanied by a humidity level of 71%. In contrast, November features slightly cooler nights, with a minimum of 10°C (51°F) and an average temperature of 20°C (68°F), peaking at 29°C (84°F) during the day. The month sees less rainfall, with 92 mm (3.6 in) spread over 16 days and higher humidity at 89%. The differences in precipitation and humidity levels create a notable shift in the overall atmosphere between the two months. For more detailed information, see Nairobi weather in November.

In May, the weather features a slightly warmer average temperature of 19°C (67°F), with maximum highs reaching 28°C (82°F) and minimums around 12°C (54°F). However, it also experiences significant rainfall, with 133 mm (5.2 in) of precipitation over 19 days, contributing to a humidity level of 71%. In contrast, December maintains a similar average temperature of 19°C (67°F), but it sees less rain, with only 76 mm (3.0 in) of precipitation across 11 days. Despite having a comparable maximum temperature of 28°C (83°F), December has a higher humidity level of 84%. For more details on December weather, check Nairobi weather in December.

Compare Nairobi's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Nairobi

As May wraps up Nairobi in a cozy embrace, the weather offers a refreshing change compared to other months. With average temperatures hovering around a comfortable 19°C, the city experiences a significant uptick in humidity, reaching about 71%, creating a lush and vibrant atmosphere. Rainfall becomes a frequent visitor, often gracing the city on up to 19 days throughout the month, contributing to total precipitation of approximately 133 mm. This blend of mild temperatures and frequent showers not only enhances the natural beauty of Nairobi but also marks a transition into the long rainy season, making it a unique time for the city. For more insights into the weather patterns, explore the detailed nuances of Nairobi Climate.