September Weather in Antsiranana, Madagascar

Last updated: August 21, 2025

In September, Antsiranana, Madagascar, experiences a delightful blend of warm temperatures and low precipitation, making it an ideal time for outdoor adventures. Daily maximum temperatures can reach up to 32°C (90°F), while the average hovers around a comfortable 25°C (77°F), leading to pleasant evenings with minimums around 20°C (68°F). With humidity levels at 74% and no recorded rainfall, the month offers a dry climate perfect for exploring the rich biodiversity and stunning landscapes of the region. September promises a vibrant and enjoyable experience for both locals and visitors alike.

September Temperature in Antsiranana

In September, temperatures in Antsiranana, Madagascar, start to turn a bit warmer as the region transitions into spring. The minimum temperature rises to around 20°C (68°F), providing a comfortable start to the month, while the average settles at a pleasant 25°C (77°F). Days can heat up quite nicely, reaching a maximum of 32°C (90°F), reminiscent of the warmer months that follow. This trend marks a gradual increase from the cooler, drier conditions of winter, making September an ideal time to explore the region's natural beauty without the extreme heat that comes later in the year. Overall, visitors can expect a delightful blend of warmth and mildness, perfect for outdoor adventures.

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

The chart illustrates September temperature patterns in Antsiranana, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Antsiranana, 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).
JanFebMarAprMayJunJulAugSepOctNovDec797979807977767677798081
Data source: Temperature data for Antsiranana 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 Antsiranana

September in Antsiranana, Madagascar, marks a notable low point in the annual precipitation cycle, with only 4 mm (0.1 in) of rainfall recorded across the month. This stark decline follows the region's wettest months, showcasing a dramatic shift from the frequent downpours of earlier months—where January alone sees 262 mm over 22 days. As September arrives, it stands out with a complete absence of rainy days, indicating a brief reprieve before the seasonal rains return in November. This trend underscores a clear transition into the dry season, as precipitation dwindles significantly, hinting at the climatic patterns that define this unique coastal landscape.

September Precipitation Trends in Antsiranana

The chart displays monthly precipitation patterns in Antsiranana, 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 Antsiranana, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec262230247609121254659111
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Antsiranana

In September, Antsiranana experiences a notable dip in humidity, recording 74%, which is the lowest level since the start of the year. This slight decrease continues the downward trend observed throughout the latter part of winter, as humidity has steadily fallen from a robust 86% in January to just 75% in August. Interestingly, as the year transitions into early spring, humidity levels stabilize around 74%, suggesting that Antsiranana may be entering a drier period. Despite this seasonal shift, the overall humidity remains relatively high compared to many other regions, highlighting the tropical climate's influence on this vibrant Madagascan locale.

September Average Humidity in Antsiranana

This chart illustrates the average monthly humidity levels in Antsiranana, 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 Antsiranana is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%85%81%83%83%79%78%75%74%74%75%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Antsiranana

In September, Antsiranana continues to experience significant solar intensity, with a UV Index of 14 categorizing it under the extreme exposure level. This means that the recommended burn time remains at just 10 minutes, aligning with the trend established earlier in the year, where high UV levels persisted from January through August. Notably, while there’s a slight fluctuation in index values—dropping from a peak of 16 in the first half of the year to 14 in September—the potential for skin damage remains alarmingly high. As the dry season progresses, residents and visitors alike should remain vigilant in protecting themselves from the sun's rays. For more detailed information on UV levels throughout the year, visit the Antsiranana UV Index.

Maximum UV Index Levels in Antsiranana for September

The chart shows the monthly maximum UV Index (UVI) for Antsiranana 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 Antsiranana typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec16161614119101214141415
Data source: Antsiranana 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 Antsiranana

In September, Antsiranana, Madagascar basks in vibrant sunshine, totaling 346 hours of glorious daylight. This enchanting month marks a continuation of the upward trend in sun exposure, following a steady rise since the chill of winter receded in May. With each passing month, the city's brightness amplifies, culminating in the peak sunny days experienced in October, which boasts a remarkable 367 hours. As summer approaches, September's delightful warmth serves as a delightful prelude, enticing locals and tourists alike to embrace the enchanting outdoor experiences that this tropical haven has to offer. The increase in sunlight not only enhances the natural beauty of the region but also paints a picture of the joyous moments that await during this vibrant season.

Monthly Sunshine Duration in Antsiranana: September Highlighted

The September sunshine duration represents the total number of hours Antsiranana 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.
JanFebMarAprMayJunJulAugSepOctNovDec272h308h319h330h341h325h332h345h346h367h359h368h
Data source: Antsiranana September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Antsiranana During September

In September, Antsiranana enjoys a reliable chance of sunny weather, with approximately 77% of the days likely to be bathed in sunlight. This peak in sunshine follows a gradual progression from the drier winter months, where July and August see the highest probabilities of sun. As the region transitions into spring, the sky remains predominantly clear, maintaining a vibrant atmosphere. Interestingly, while the chances decrease slightly in October to 70%, the overall trend reveals that September is a fantastic time to bask in the sun, making it perfect for outdoor adventures and exploration in this stunning coastal paradise.

Percentage of Sunny Days in September in Antsiranana

The chart illustrates the percentage of sunny days in Antsiranana 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 Antsiranana experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%16%31%48%60%71%77%81%78%70%76%59%
Data source: Antsiranana September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Antsiranana in September

In Antsiranana, Madagascar, the evolution of daylight duration throughout the year reveals a fascinating rhythm. Starting from January to March, the city enjoys a consistent 12 hours of daylight daily, ushering in the warmth of summer. As the seasons shift into the cooler months of April to August, daylight gently wanes to 11 hours, hinting at the approach of winter. However, come September, daylight springs back to a full 12 hours, reminiscent of the earlier months, signaling a refreshing transition and preparing for the longer days that follow into October and November. This cyclical dance of light not only shapes the natural environment but also influences the daily lives of the residents, showcasing Madagascar's unique climatic patterns.

Average Daylight Hours in Antsiranana for September

The chart illustrates the variation in daylight duration in Antsiranana throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec12h 44m12h 28m12h 8m11h 48m11h 31m11h 23m11h 28m11h 42m12h 1m12h 21m12h 40m12h 49m
Data source: Antsiranana daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Antsiranana

In September, Antsiranana, Madagascar, experiences a noticeable increase in wind speed, averaging 7.1 m/s (16 mph), marking it as one of the breeziest months of the year. This uptick follows a steady rise from the milder winds of the earlier months, particularly noticeable since April, when speeds began to climb. The winds then continue their ascent through July and August, creating a transition into September’s invigorating gusts. While temperatures may start to cool, the lively winds enhance the coastal atmosphere, making this period ideal for both outdoor adventures and leisurely beach days, inviting locals and visitors alike to embrace the fresh air and stunning vistas.

Average September Wind Speed in Antsiranana

The chart displays monthly wind speed patterns in Antsiranana, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.72.32.34.84.45.46.36.07.1 m/s5.54.74.6
Data source: Antsiranana September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Antsiranana Compares to Other Months

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

In September, the weather is warm and relatively dry, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F) and an average of 25°C (77°F). The humidity sits at 74%, and there is practically no precipitation, making it a pleasant month for outdoor activities. In contrast, January experiences higher humidity levels at 86% and significantly more rainfall, with 262 mm (10.3 in) spread over 22 days. The temperatures in January also remain warm, featuring a minimum of 22°C (73°F) and a maximum of 33°C (91°F), but the increased precipitation can make the weather feel more oppressive. For more detailed information, you can check Antsiranana weather in January.

September and February showcase contrasting weather patterns. In September, temperatures range from a pleasant minimum of 20°C (68°F) to a high of 32°C (90°F), accompanied by low precipitation of just 4 mm and no rainy days, creating a relatively dry and comfortable atmosphere with humidity at 74%. In contrast, February experiences slightly warmer temperatures, with a minimum of 23°C (73°F) and an average of 26°C (80°F), but it is marked by significant rainfall totaling 230 mm over 25 days, leading to higher humidity levels at 85%. For more detailed insights on February weather specifics, you can check Antsiranana weather in February.

In September, the weather is characterized by a warm and dry climate, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F). The average temperature sits comfortably at 25°C (77°F), and the month sees virtually no precipitation, making it an ideal time for outdoor activities with a humidity level of 74%.

In contrast, March experiences slightly higher temperatures, with a minimum of 22°C (73°F) and an average of 26°C (80°F), although it still peaks at 32°C (90°F). However, March is notably wetter, receiving 247 mm (9.7 in) of rain over 25 days, resulting in higher humidity levels at 81%. For those interested in exploring the differences in weather patterns, more details can be found here: Antsiranana weather in March.

In comparing the weather of September and April, it's evident that April tends to be warmer and wetter. September features a milder temperature range with a minimum of 20°C (68°F) and an average of 25°C (77°F), while April starts slightly higher with a minimum of 22°C (72°F) and averages 27°C (81°F). April also experiences more precipitation, with 60 mm (2.4 in) falling over 11 days, compared to September's dry spell of just 4 mm (0.1 in) over 0 days. Additionally, the humidity in April rises to 83%, making it feel a bit more humid than September's 74%. For more specific details about the climate in April, you can check Antsiranana weather in April.

In September, the weather features a comfortable temperature range with a minimum of 20°C (68°F) and an average of 25°C (77°F), peaking at 32°C (90°F). It is notably dry, with no recorded precipitation and humidity at 74%. In contrast, May's weather presents slightly warmer temperatures, with a minimum of 21°C (70°F) and an average of 26°C (80°F), also reaching a maximum of 32°C (90°F). However, May sees a bit more rain, totaling 9 mm (0.3 in) over two days, accompanied by higher humidity at 83%. For a more detailed look at May's climate, visit Antsiranana weather in May.

September and June exhibit similar temperature ranges, with both months averaging around 25°C (77°F) and peaking at 32°C (90°F). However, September enjoys slightly warmer minimum temperatures, averaging 20°C (68°F) compared to June's 19°C (66°F). When it comes to precipitation, September stands out for its dry conditions, recording only 4 mm (0.1 in) of rainfall over no days, while June sees more moisture with 12 mm (0.5 in) over one day. Humidity levels in June are also a bit higher at 79%, compared to September's 74%. For more details on June weather, you can visit Antsiranana weather in June.

In comparing the weather between September and July, it's evident that September offers slightly warmer conditions, with an average temperature of 25°C (77°F) compared to July's 24°C (76°F). Additionally, September experiences less precipitation, with just 4 mm over zero rainy days, whereas July sees 12 mm of rain across two days, contributing to a slightly higher humidity level of 78%. Overall, September tends to be drier and a bit warmer, making it a more appealing month for outdoor activities. For a more detailed overview of July weather patterns, you can check Antsiranana weather in July.

In September, the weather is slightly warmer compared to August, with minimum temperatures of 20°C (68°F) and an average of 25°C (77°F), while August sees minimums of 18°C (64°F) and an average of 24°C (76°F). The maximum temperatures in September reach up to 32°C (90°F), a bit higher than August's maximum of 31°C (88°F). Both months experience low precipitation, but September stands out with no recorded rainy days and only 4 mm (0.1 in) of rain compared to August's 5 mm (0.2 in) over one day. Humidity levels are also similar, with September at 74% and August at 75%. For more details on August weather, you can check Antsiranana weather in August.

In September, the weather typically features a minimum temperature of 20°C (68°F), with an average of 25°C (77°F) and a maximum reaching 32°C (90°F). The month remains dry, with no recorded precipitation and humidity levels around 74%. Moving into October, temperatures see a slight increase, with a minimum of 20°C (69°F), an average of 26°C (79°F), and a maximum of 33°C (92°F). However, October introduces a bit more moisture, with 6 mm (0.2 in) of precipitation falling over one day, while humidity remains consistent at 74%. For more details, you can check Antsiranana weather in October.

In comparing the weather of September and November, September boasts a warm climate with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F) and an average of 25°C (77°F). The month is relatively dry, with only 4 mm (0.1 in) of precipitation recorded over no rainy days and humidity at 74%. On the other hand, November experiences slightly warmer temperatures, with a minimum of 22°C (71°F), an average of 27°C (81°F), and a peak at 34°C (94°F). However, it also sees a significant increase in rainfall, accumulating 59 mm (2.3 in) over 7 days, while the humidity remains consistently at 75%. This shift in weather conditions highlights November as not only warmer but also wetter compared to the drier September. For more detailed information, you can visit Antsiranana weather in November.

In September, the weather is generally warm and dry, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 32°C (90°F) and an average of 25°C (77°F). The humidity is moderate at 74%, and there is no recorded precipitation during the month. In contrast, December experiences significantly warmer temperatures, with minimums at 23°C (74°F), averages of 27°C (81°F), and peaks at 34°C (94°F). Additionally, December is much wetter, receiving 111 mm (4.4 in) of rainfall over 16 days, coupled with higher humidity levels at 83%. For more detailed information about December's weather, you can visit Antsiranana weather in December.

Compare Antsiranana's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Antsiranana

As September unfolds in Antsiranana, it brings a delightful transition from the heavier rains of winter, showcasing a blend of warm temperatures and low precipitation. With maximums reaching a comfortable 32°C, this month marks a significant shift towards drier, sunnier days compared to the earlier months, while averaging a pleasant 25°C. Humidity remains relatively high at 74%, yet the absence of rain creates an ideal environment for outdoor exploration. In essence, September stands as a crucial turning point in the season, making it a prime time for visitors and locals alike to enjoy the vibrant surroundings. For a deeper dive into the area's climatic patterns, visit the detailed page on Antsiranana Climate.