Last updated: August 21, 2025
Discover the weather in Isiolo, Kenya for September, where temperatures reach a comfortable maximum of 30°C (86°F) and an average of 21°C (70°F), perfect for enjoying outdoor activities. The minimum temperature dips to 12°C (55°F), providing a refreshing coolness at night. During this month, the region experiences a total precipitation of 43 mm (1.7 in) over approximately 7 days, resulting in a humidity level of 58% that adds a touch of moisture to the air. Whether you're exploring the local culture or soaking in the natural beauty, September's mild climate sets the stage for memorable experiences in Isiolo.
In September, Isiolo, Kenya experiences a pleasant shift in temperatures, with minimums around 12°C (55°F) and averages reaching 21°C (70°F). The maximum temperatures hover near 30°C (86°F), mirroring the warmth of the preceding months while hinting at the approach of the warmer season ahead. This month stands out with comfortable daytime warmth, ideal for exploring the region's stunning landscapes. Despite the slight variations across the months, September maintains a balance that invites both relaxation and adventure, continuing the trend of mild nights and moderately warm days that define the region's climate.
In September, Isiolo experiences a modest precipitation level, with 43 mm (1.7 in) of rain falling over approximately 7 days. This marks a slight decrease compared to the previous months, as August saw 47 mm (1.9 in) over 9 days. As the year progresses into the rainy season, September’s rainfall serves as a transition before a more substantial increase in October, where totals jump to 91 mm (3.6 in) across 14 days. These patterns suggest a steady build-up of moisture leading into the peak rainy months, with September acting as a bridge that hints at the wetter conditions to come. Overall, the gradual fluctuation in precipitation amounts highlights Isiolo’s dynamic climate, emphasizing its journey through seasonal changes.
In Isiolo, Kenya, September marks a transitional moment in humidity levels, hovering around 58%. This figure reflects a subtle increase following the drier months of July and August, which recorded 53% and 57% respectively. As the region approaches October, humidity dramatically rises to 76%, indicating the onset of the rainy season. The gradual climb from spring to autumn—where humidity dips to its lowest in February at 44%—highlights a clear trend: the latter part of the year brings a notable increase in moisture, peaking in November at a hefty 88%. Thus, September serves as a pivotal point, allowing residents to experience a balance between the last traces of dry air and the impending wet season.
In September, Isiolo, Kenya, continues to experience high UV exposure, with a UV Index of 14, categorizing it as extreme and maintaining a burn time of just 10 minutes. This marks a slight increase from the previous month, reflecting a general trend of elevated UV levels that persists throughout the year. With such consistent intensity, it's crucial for residents and visitors alike to take proper sun protection measures during these months. The UV Index in Isiolo tends to range from 12 to 16 from January to August, remaining notable even as it gradually dips in the later months. For more detailed insights, check out the complete Isiolo UV Index.
UV Risk Categories
In September, Isiolo, Kenya basks in 347 hours of glorious sunshine, a delightful continuation of the vibrant light experienced in the preceding months. This notable figure reflects a slight dip from the 354 hours seen in August, but it still supports the region's reputation for abundant sunshine. The sunshine hours have generally trended upwards since the start of the year, with March and May leading the pack at 353 and 354 hours, respectively. As we transition from the dry months of early to mid-year, the consistent sunlight provides an inviting atmosphere for both locals and visitors to relish the enchanting landscape of Isiolo.
September in Isiolo, Kenya, offers a favorable chance of sunny weather, with a 52% likelihood of sun gracing the region. This month stands out as a notable transition, as it closely follows the cooler months of July and August, which saw significantly lower chances of sunshine, at 30% and 41%, respectively. The optimism for clear skies begins to shift upward, resembling the sunnier months of January and June, both at 56%. With an average sun probability that hovers around the mid-50s, September provides a delightful opportunity to enjoy the outdoors before the onset of the slightly wetter months ahead. The evolving weather patterns make it a perfect time for both exploration and relaxation under the warm Kenyan sun.
In Isiolo, Kenya, September shines brightly with 12 hours of daylight, just like every month of the year. This consistent daylight duration illustrates the region's remarkable geographical stability, as it remains untouched by drastic seasonal fluctuations typically seen in other parts of the world. Throughout the year, the steady twelve hours of sunlight allows residents and visitors alike to enjoy a balanced rhythm of day and night, cultivating an environment ripe for outdoor activities and cultural experiences. Such constancy enhances the appeal of Isiolo, making it a perfect destination for those who appreciate the beauty of a reliably sunlit day.
As September blows in Isiolo, Kenya, the average wind speed reaches 2.7 m/s (6 mph), marking a continuation of the upward trend established over the previous months. Following a steady rise from 2.5 m/s in April to 2.6 m/s in June, the winds begin to intensify with August experiencing a refreshing peak. This sustained breeze in September not only invigorates the landscape but also hints at the approaching dry season, offering a welcome change after the humidity of the earlier months. Overall, the gentle yet persistent winds signal a transition that both nature and residents eagerly embrace, highlighting the dynamic weather patterns that define this vibrant region.
Weather in Isiolo varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Isiolo, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of September and January, both months display similar temperature ranges, with September experiencing a minimum of 12°C (55°F), an average of 21°C (70°F), and a maximum of 30°C (86°F). January's temperatures closely follow, with a low of 12°C (54°F), an average of 20°C (69°F), and a maximum of 29°C (85°F). Precipitation levels are slightly lower in January, with 32 mm (1.2 in) over 5 days, compared to September's 43 mm (1.7 in) over 7 days. Humidity remains relatively stable, with September at 58% and January at 57%. For a more detailed view of the January climate, you can visit Isiolo weather in January.
September and February offer similar average temperatures, both hovering around 21°C (70°F), but with a slight difference in their characteristics. In September, temperatures range from a cooler minimum of 12°C (55°F) to a warm maximum of 30°C (86°F), along with more precipitation at 43 mm (1.7 in) over 7 days and a higher humidity level of 58%. In contrast, February features a slightly milder minimum of 11°C (51°F) and a comparable maximum, but with less rainfall at 35 mm (1.4 in) across 8 days and lower humidity at 44%. For more detailed information, you can check Isiolo weather in February.
In September, temperatures range from a minimum of 12°C (55°F) to a maximum of 30°C (86°F), with an average of 21°C (70°F). The month experiences around 43 mm (1.7 in) of precipitation over approximately 7 days, contributing to a relatively humid environment with 58% humidity. In contrast, March sees slightly warmer weather, with a minimum of 14°C (57°F) and a maximum of 31°C (88°F), averaging 22°C (71°F). It also receives a bit more rainfall, totaling 53 mm (2.1 in) over about 10 days, but the humidity is notably lower at 43%. For more details on March weather, visit Isiolo weather in March.
When comparing the weather in September and April, we see some notable differences. September generally has a slightly lower temperature range, with minimums around 12°C (55°F) and maximums reaching up to 30°C (86°F). In contrast, April features a higher minimum of 14°C (57°F) and a peak temperature of 32°C (89°F). Additionally, April experiences significantly more rainfall, with 119 mm (4.7 in) over 13 rainy days, compared to just 43 mm (1.7 in) over 7 rainy days in September. Furthermore, April has a lower humidity level at 47%, while September's humidity averages around 58%. For more detailed information on April weather, you can visit Isiolo weather in April.
September and May exhibit similar temperature ranges, with both months featuring an average temperature of around 21°C (70°F). However, September typically experiences slightly cooler nighttime temperatures, with a minimum of 12°C (55°F) compared to May's 13°C (56°F). Precipitation is notably higher in May, with 63 mm (2.5 in) spread over about 10 days, while September sees less rain at 43 mm (1.7 in) over 7 days. Furthermore, humidity levels are higher in May at 67%, compared to 58% in September. For more detailed information on May weather specifically, you can check Isiolo weather in May.
In September, the weather exhibits slightly warmer temperatures, ranging from a minimum of 12°C (55°F) to a maximum of 30°C (86°F) with an average of 21°C (70°F). In contrast, June features a minimum temperature of 13°C (55°F) and a maximum of 28°C (83°F) with an average of 20°C (69°F). September sees more precipitation, with 43 mm (1.7 in) over about 7 days, while June has a smaller total of 36 mm (1.4 in) across 5 days. Humidity levels are slightly lower in September at 58%, compared to June's 61%. For more specific details, you can visit Isiolo weather in June.
In comparing the weather of September and July, we see some notable differences. September typically enjoys a broader temperature range, with minimums of 12°C (55°F) and maximums reaching 30°C (86°F), leading to an average of 21°C (70°F). In contrast, July has a slightly cooler profile, with minimum temperatures of 13°C (57°F) and maximums of 28°C (83°F), yielding an average of 20°C (68°F). Precipitation also varies, with September receiving 43 mm (1.7 in) over 7 days, while July is a bit wetter with 50 mm (2.0 in) over 10 days. Additionally, September has a humidity level of 58%, slightly higher than July's 53%. For more detailed information, you can refer to Isiolo weather in July.
In September, the weather experiences a slight increase in average temperature, reaching 21°C (70°F) compared to August's average of 20°C (68°F). While the minimum temperatures remain the same at 12°C (55°F) for both months, September sees a higher maximum temperature of 30°C (86°F), compared to 29°C (85°F) in August. However, September has slightly less precipitation, measuring 43 mm (1.7 in) over 7 days, compared to August's 47 mm (1.9 in) over 9 days. Humidity levels remain relatively stable, with September at 58% and August at 57%. For more detailed insights into August's weather, you can check Isiolo weather in August.
In September, the weather features a mild range of temperatures with a minimum of 12°C (55°F), averaging 21°C (70°F), and peaking at 30°C (86°F). The month sees relatively low precipitation at 43 mm (1.7 in) over 7 days and a comfortable humidity level of 58%. In contrast, October maintains the same average and maximum temperatures, but the minimum rises to 15°C (58°F). This month experiences significantly higher rainfall at 91 mm (3.6 in) over 14 days, leading to increased humidity at 76%. For more details on weather patterns, you can check Isiolo weather in October.
In September, the weather typically features a warmer temperature range with a minimum of 12°C (55°F) and a maximum of 30°C (86°F), averaging around 21°C (70°F). The month experiences relatively low precipitation of 43 mm (1.7 in) over about 7 days and maintains a moderate humidity level of 58%.
In contrast, November sees slightly cooler minimum temperatures at 14°C (57°F) and a similar maximum of 29°C (84°F), with an average temperature of 20°C (69°F). However, November is characterized by significantly higher precipitation, totaling 85 mm (3.3 in) over 18 days, leading to a much higher humidity of 88%. This shift highlights the transition from the drier conditions of September to the wetter, more humid atmosphere of November. For more detailed insights on November weather, visit Isiolo weather in November.
In September, the weather is generally warm with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 30°C (86°F), along with moderate precipitation of 43 mm (1.7 in) over about 7 days. The humidity sits comfortably at 58%. In contrast, December brings slightly cooler temperatures, with minimums still around 12°C (53°F) and maximums reaching 28°C (84°F). However, this month experiences higher rainfall, totaling 63 mm (2.5 in) over 13 days, and increased humidity at 78%. For more details on December weather specifics, visit Isiolo weather in December.
September in Isiolo brings a refreshing shift in weather, characterized by a comfortable blend of warm days and cool nights. While temperatures can peak at a pleasant 30°C, the average of 21°C allows for enjoyable outdoor activities. Compared to the drier months, September sees increased humidity levels at 58%, enhancing the feeling of freshness after the winter months. Although precipitation is relatively low, with rain falling on about 7 days, it adds a touch of greenery to the landscape, making it a perfect time for exploring the region. For a deeper understanding of how Isiolo's weather varies through the year, visit Isiolo Climate.