September Weather in Lusaka, Zambia

Last updated: August 28, 2025

In Lusaka, Zambia, September boasts warm temperatures with a maximum reaching 37°C (99°F), while the average hovers around a comfortable 23°C (74°F). Nights can cool down to a refreshing 10°C (50°F), providing a delightful contrast. With precipitation of just 1 mm and no rainy days, the month remains predominantly dry, allowing for outdoor activities under a clear blue sky. The humidity stays relatively low at 28%, contributing to the overall pleasantness of this early spring month, making September an ideal time to explore the vibrant surroundings of Lusaka.

September Temperature in Lusaka

In September, Lusaka, Zambia, experiences a notable shift in temperatures, with minimums dipping to a cool 10°C (50°F), while daytime averages rise to a delightful 23°C (74°F). As the month progresses, the maximums can soar to a sweltering 37°C (99°F), signaling the transition towards the hotter season ahead. This month stands out as temperatures gradually climb, showcasing a blend of refreshing cooler nights and increasingly warm days, making it a perfect time to enjoy outdoor activities before the heat peaks.

September Weather in Lusaka: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lusaka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lusaka, September 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).
JanFebMarAprMayJunJulAugSepOctNovDec727272706662626874787774
Data source: Temperature data for Lusaka 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.

September Precipitation in Lusaka

In September, Lusaka experiences a dramatic shift in precipitation patterns, marking the transition into the dry season. With only 1 mm of rainfall recorded and no precipitation days, the month underscores the area's diminishing moisture, following the peak wet months of January and February, which see as much as 230 mm of rain. This stark contrast is representative of the region's seasonal rhythm, where heavy rains from early in the year taper off to almost none as the dry months of June through August set in. As October approaches, the anticipation of light showers looms, but September remains a sun-soaked prelude to the coming dry spell.

September Precipitation Trends in Lusaka

The chart displays monthly precipitation patterns in Lusaka, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Lusaka, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec213230143341423111295177
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lusaka

September in Lusaka, Zambia, marks a notable shift in humidity levels as they dip to 28%, the lowest point of the year. This decrease continues the trend observed from the previous months, where humidity steadily fell from a high of 89% in January to 36% in August. The dry season is in full swing, offering relief from the oppressive moisture of the earlier months. As the region transitions into October, the humidity marginally decreases further to 27%, suggesting a continuation of this dry spell. Overall, September serves as a pivotal month, setting the stage for the crisp, refreshing air that characterizes the latter part of the year.

September Average Humidity in Lusaka

This chart illustrates the average monthly humidity levels in Lusaka, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Lusaka is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%86%82%71%56%49%45%36%28%27%53%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lusaka

In September, Lusaka experiences a UV Index of 12, classified as extreme, which means that just 10 minutes of unprotected sun exposure can lead to skin damage. This slight drop from August’s UV Index of 11 continues a trend of high intensity from the start of the year, when levels peaked at 17 in January and February. As we transition into the latter part of the year, October and November maintain this extreme category, reinforcing the need for protective measures against the sun's harmful rays. For a detailed overview of the UV Index in Lusaka and its implications for sun safety, visit Lusaka UV Index.

Maximum UV Index Levels in Lusaka for September

The chart shows the monthly maximum UV Index (UVI) for Lusaka in September, 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 September, the maximum UV index in Lusaka typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1717151310991112121516
Data source: Lusaka September 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.

September Sunshine in Lusaka

September in Lusaka, Zambia, brings a delightful continuation of the city's vibrant sunshine, with an impressive 339 hours of sunlight. This month showcases a remarkable consistency in daylight, closely mirroring the sunny peak of the previous month, August, which recorded 340 hours. After a progression from 262 hours in January to a high of 339 hours in May, the trend indicates a steady rise in sunlight hours as the year unfolds. This abundance of sunshine not only brightens the skies but also enhances the lush landscapes and lively outdoor activities, making September a perfect time to experience the warm embrace of Lusaka's sun-kissed days. The pattern suggests a promising outlook as October approaches, with an even more radiant 360 hours anticipated, inviting both locals and visitors to bask in the ever-present warmth that characterizes this beautiful city.

Monthly Sunshine Duration in Lusaka: September Highlighted

The September sunshine duration represents the total number of hours Lusaka experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec262h276h336h328h339h318h332h340h339h360h342h337h
Data source: Lusaka September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lusaka During September

In September, Lusaka enjoys a delightful 87% chance of sunny weather, making it one of the sunniest months of the year. This impressive likelihood follows a trend of increasing sun exposure as the region transitions from the cooler months of winter into the warmer spring season. Notably, the probability of sunshine has steadily risen from a mere 10% in January to a remarkable 92% in August, culminating in September's vibrant atmosphere. As the days grow longer and temperatures rise, visitors can expect abundant sunshine perfect for exploring the city and its surroundings. By October, the likelihood dips to 73%, but September stands out as an ideal time for those seeking a radiant escape.

Percentage of Sunny Days in September in Lusaka

The chart illustrates the percentage of sunny days in Lusaka throughout the year, with September 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 Lusaka experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec10%14%43%66%83%72%73%92%87%73%54%44%
Data source: Lusaka September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lusaka in September

As September arrives in Lusaka, Zambia, daylight returns to a welcoming 12 hours after months of extended evenings. This shift marks a trend where the city experiences a consistent balance of light from January through March. Following this, daylight dips slightly in the cooler months of April to August, settling at 11 hours. However, come September, the transition into spring brings an invigorating increase in sunlight, re-establishing that harmonious 12-hour rhythm. This continuity persists into October and November, before the days lengthen further into December, offering a refreshing reminder of the cyclical nature of the seasons in Lusaka.

Average Daylight Hours in Lusaka for September

The chart illustrates the variation in daylight duration in Lusaka throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 54m12h 34m12h 9m11h 43m11h 22m11h 12m11h 17m11h 36m12h12h 26m12h 49m13h
Data source: Lusaka daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Lusaka

As the calendar turns to September in Lusaka, a noticeable shift in wind patterns emerges, with average wind speeds reaching 4.2 m/s (9 mph). This is a marked increase from the previous months, with consistent growth observed since April. The escalation in wind speed during this time hints at the approach of the drier season, providing a refreshing change after the milder breezes of winter. Following September, the winds maintain an energetic pace into October, stabilizing at 4.0 m/s (9 mph) before gradually easing into the warmer months ahead. This trend showcases a vibrant transition in Lusaka's atmospheric dynamics, inviting residents and visitors alike to enjoy the invigorating September breezes.

Average September Wind Speed in Lusaka

The chart displays monthly wind speed patterns in Lusaka, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.42.33.03.53.13.23.63.74.2 m/s4.03.33.1
Data source: Lusaka September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Lusaka Compares to Other Months

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

In September, the weather in Lusaka is characterized by warm temperatures, with a minimum of 10°C (50°F), an average of 23°C (74°F), and a maximum that can reach up to 37°C (99°F). This month typically experiences very little precipitation, averaging only 1 mm (0.0 in) and with no rainy days, alongside low humidity levels at just 28%.

In contrast, January brings a more humid and wetter climate, with a minimum temperature of 14°C (58°F), an average of 22°C (72°F), and a maximum temperature of 32°C (89°F). Precipitation is significantly higher in January, averaging 213 mm (8.4 in) over about 20 days, resulting in a much wetter atmosphere with humidity soaring to 89%. For more detailed information about the weather in January, you can visit Lusaka weather in January.

In comparing the weather of September and February, notable differences emerge. September boasts warm temperatures with a minimum of 10°C (50°F) and an average of 23°C (74°F), peaking at a scorching 37°C (99°F). This month is characterized by its dry conditions, with only 1 mm of precipitation recorded and a humidity level of just 28%. In contrast, February experiences a milder temperature range, with a minimum of 16°C (62°F), an average of 22°C (72°F), and a maximum of 31°C (89°F). However, it is far wetter, with significant rainfall at 230 mm (9.1 in) over 25 days and high humidity reaching 86%. For more details about February weather in Lusaka, you can visit Lusaka weather in February.

In September, the weather boasts a warm average temperature of 23°C (74°F), with maximums reaching up to 37°C (99°F) and minimal precipitation, totaling just 1 mm over the month. This period experiences low humidity at around 28%, resulting in dry, sunny days perfect for outdoor activities. In contrast, March is characterized by more moderate temperatures, with an average of 22°C (72°F), a maximum of 33°C (91°F), and significantly higher precipitation of 143 mm (5.6 in) spread over 17 days. The humidity also rises dramatically to 82%, making March feel much more humid and damp, which can limit outdoor plans. For more detailed information, you can check the Lusaka weather in March.

In comparing the weather of September and April, September stands out with its warmer temperatures, reaching a maximum of 37°C (99°F) and an average of 23°C (74°F), while April has a slightly cooler average temperature of 21°C (70°F) and a maximum of 32°C (90°F). September is notably dry, receiving just 1 mm of precipitation over no rainy days, contrasting sharply with April, which experiences 34 mm of rainfall spread across six days, contributing to a much higher humidity level of 71%. This makes September feel drier and hotter, while April tends to be cooler and more humid. For a closer look at April’s weather, you can visit Lusaka weather in April.

September typically offers warmer weather compared to May, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 37°C (99°F), and an average of 23°C (74°F). In contrast, May features cooler temperatures, with a minimum of 7°C (44°F) and a maximum of 31°C (88°F), yielding an average of 19°C (67°F). Additionally, September boasts dry conditions with no recorded precipitation, while May experiences some rainfall, averaging 14 mm (0.6 in) over just one day, accompanied by higher humidity at 56%. For more details, you can check out Lusaka weather in May.

In September, the weather is typically warmer, with average temperatures reaching around 23°C (74°F) and maximums soaring up to 37°C (99°F). In contrast, June experiences cooler conditions, with an average of 17°C (63°F) and maximum temperatures of 27°C (81°F). Additionally, September sees significantly lower humidity at 28%, compared to June's 49%, making September feel drier and hotter. Precipitation levels in both months are minimal, with September averaging just 1 mm (0.0 in) and June slightly higher at 2 mm (0.1 in), though both have zero rainy days. For more detailed insights, you can check Lusaka weather in June.

The weather in September is significantly warmer compared to July, with minimum temperatures averaging 10°C (50°F) versus July's 6°C (43°F), and September’s maximum reaching up to 37°C (99°F) compared to July's peak of 28°C (83°F). Additionally, September enjoys a much drier climate, with only 1 mm of precipitation compared to July's 3 mm, even though both months report no rainy days. Humidity levels also differ, with September exhibiting a lower humidity of 28% compared to July's 44%. For more detailed information, you can check Lusaka weather in July.

In September, the weather becomes noticeably warmer compared to August, with minimum temperatures rising to 10°C (50°F) and average temperatures reaching 23°C (74°F), while maximum temperatures can soar up to 37°C (99°F). In contrast, August experiences slightly cooler temperatures, with a minimum of 8°C (48°F) and an average of 20°C (68°F), peaking at 33°C (92°F). Both months see minimal precipitation of 1 mm (0.0 in) and no rainy days, but September has lower humidity at 28%, compared to August's 36%. For more details on August weather, visit Lusaka weather in August.

September typically offers warm weather with an average temperature of 23°C (74°F) and a maximum that can reach up to 37°C (99°F). It is characterized by dry conditions with negligible precipitation and low humidity at 28%. In contrast, October sees an increase in both temperature and humidity, with averages rising to 26°C (78°F) and maximums reaching 38°C (101°F). October also introduces limited rainfall, with about 12 mm (0.5 in) recorded over two days. For more insights on the October weather in Lusaka, check the following link: Lusaka weather in October.

In September, the weather is characterized by warm temperatures, with highs reaching up to 37°C (99°F) and an average of 23°C (74°F). The month is remarkably dry, experiencing minimal precipitation at just 1 mm and 0 rainy days, alongside a low humidity of 28%. In contrast, November sees slightly higher minimum temperatures at 16°C (61°F) and an average of 25°C (78°F), but it can still reach highs of 37°C (100°F). However, November is much wetter, with a total precipitation of 95 mm spread over 14 days, leading to increased humidity at 53%. For more details on the weather in November, you can check Lusaka weather in November.

In September, the weather is warm and dry, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 37°C (99°F) and an average of 23°C (74°F). The month sees almost no precipitation, with just 1 mm recorded and no rainy days, accompanied by low humidity levels of 28%. In contrast, December brings significantly milder temperatures, with a minimum of 17°C (62°F), an average of 24°C (75°F), and a maximum of 35°C (96°F). However, it is also the wettest month, with 176 mm of rainfall spread over 20 days and humidity soaring to 81%. For a more detailed look at December's weather, visit Lusaka weather in December.

Compare Lusaka's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Lusaka

As September unfolds in Lusaka, the weather shifts toward a warm and inviting ambiance, distinguishing it from the cooler months that precede it. With maximum temperatures soaring to a sizzling 37°C (99°F), this is a time when the warmth truly settles in. The average temperature rests comfortably at 23°C (74°F), providing a pleasant balance, while evenings remain refreshingly cool, dipping to around 10°C (50°F). Notably, this month boasts no recorded precipitation, allowing for plenty of sunshine and minimal humidity at just 28%. For those eager to explore more about Lusaka's climate year-round, you can learn more at Lusaka Climate.