September Weather in Mangalore, India

Last updated: August 21, 2025

September in Mangalore, India, presents a blend of warmth and moisture, with a maximum temperature reaching 31°C (88°F) and an average of 27°C (80°F). The city experiences a relatively mild minimum of 24°C (76°F), providing a comfortable backdrop to the monsoon season. Remarkably, this month witnesses significant precipitation, totaling 317 mm (12.5 inches) over approximately 26 days, contributing to the lush landscapes of the region. The humidity levels soar to around 84%, creating a vibrant tropical atmosphere that defines Mangalore during September, making it a unique time to experience the city's natural beauty and cultural richness.

September Temperature in Mangalore

In September, Mangalore experiences a delightful blend of warmth and humidity as the monsoon season continues to ebb. With minimum temperatures around 24°C (76°F) and daily averages hovering at 27°C (80°F), visitors can enjoy the lush greenery enhanced by recent rains. The maximum temperature peaks at 31°C (88°F), striking a balance that keeps the atmosphere pleasant yet inviting. This month stands out as a transition period, with temperatures gradually shifting towards the cooler months ahead, while still holding onto the warmth of summer. As the city brims with life, the moderately high temperatures and refreshing breezes create an ideal setting for exploring Mangalore's rich culture and stunning landscapes.

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

The chart illustrates September temperature patterns in Mangalore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mangalore, 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).
JanFebMarAprMayJunJulAugSepOctNovDec808183858481807980818281
Data source: Temperature data for Mangalore generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Mangalore

In September, Mangalore experiences a substantial precipitation total of 317 mm (12.5 in), marking a continuation of the monsoon season's intensity. With 26 days of rainfall, it becomes evident that the city is still under the sway of heavy downpours, even as the monsoon begins to wane. This month's rainfall, while slightly lower than the staggering totals seen in July and August, still contributes significantly to Mangalore's lush landscape and vital water resources. The trend of uninterrupted rainfall throughout the preceding months sets the stage for September's robust figures, illustrating how the region's climate is intricately linked to the monsoonal rhythm, preparing for the transition into October's similar yet slightly drier conditions.

September Precipitation Trends in Mangalore

The chart displays monthly precipitation patterns in Mangalore, 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 Mangalore, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec93167121454759353431732710523
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Mangalore

September in Mangalore, India, witnesses a slight dip in humidity, averaging 84%, following the peak of the monsoon season in August, which boasts a whopping 87%. This month marks a gradual transition from the intensely humid summer, which escalates from 74% in March to 86% in July. As the drier months approach, including October with its 77% humidity, September serves as a bridge, retaining significant moisture while hinting at relief. Historically, humidity levels in Mangalore reveal a distinct pattern, with the latter half of the year consistently exhibiting higher percentages, highlighting the area's tropical climate and its vibrant, lush surroundings.

September Average Humidity in Mangalore

This chart illustrates the average monthly humidity levels in Mangalore, 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 Mangalore is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%66%74%77%76%80%86%87%84%77%75%70%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mangalore

In September, Mangalore experiences consistently extreme UV Index levels, peaking at 13, which indicates a heightened risk of harm from unprotected sun exposure. With a burn time reduced to just 10 minutes, it’s essential for residents and visitors to take precautions when outdoors. This trend of elevated UV exposure persists from the prior months of July and August, suggesting that the summer heat lingers into the early fall. As the year transits into October, the UV Index slightly dips to 11, yet remains in the extreme category. Staying informed is crucial; for more details on how to protect yourself from UV rays, check out Mangalore UV Index.

Maximum UV Index Levels in Mangalore for September

The chart shows the monthly maximum UV Index (UVI) for Mangalore 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 Mangalore typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec1011121312121313131199
Data source: Mangalore 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 Mangalore

As September rolls into Mangalore, the city basks in 280 hours of sunshine, marking a refreshing uplift from the gloomy monsoon months. The trend showcases a distinct recovery from the rainy season, with sunlight gradually increasing after the lows of July and August, which recorded only 215 and 231 hours respectively. This bounce back not only reinvigorates the vibrant coastal landscape but also entices locals and tourists alike to embrace outdoor activities. Interestingly, this rejuvenation sets the stage for an impressive sequence, as September's sun paves the way for an even brighter October, which enjoys 286 hours of daylight, continuing the delightful transition into the end of the year.

Monthly Sunshine Duration in Mangalore: September Highlighted

The September sunshine duration represents the total number of hours Mangalore 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.
JanFebMarAprMayJunJulAugSepOctNovDec270h307h342h333h322h244h215h231h280h286h310h324h
Data source: Mangalore September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mangalore During September

In Mangalore, September marks a transition into the monsoon season, where the likelihood of sunny weather drops significantly to only 14%. This is a stark contrast to the sun-drenched months of February, which enjoys a whopping 81% chance of sunshine, and even the earlier months like March and April, where sunny days are much more common at 68% and 55%, respectively. As the city shifts from the peak of summer, with its average of 55% sunny days, the relentless rains of June and July, boasting a mere 3% and 9% chance of sun, take center stage. By the time September arrives, residents and visitors alike will have to embrace the predominantly overcast skies and plan accordingly, as clear sunny days remain a rare delight during this month.

Percentage of Sunny Days in September in Mangalore

The chart illustrates the percentage of sunny days in Mangalore 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 Mangalore experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec55%81%68%55%14%11%3%9%14%13%11%79%
Data source: Mangalore September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mangalore in September

In Mangalore, India, September maintains a consistent 12 hours of daylight, continuing the trend established from March through August. This month marks the tail end of the monsoon season, with daylight hours remaining stable before they gradually decrease in October. The backdrop of relatively long days during this period beautifully complements the vibrant landscapes and cultural activities of the region. As daylight wanes toward the end of the year, the rhythm of life in Mangalore shifts subtly, embracing a shorter daylight duration while still basking in the lingering warmth of the monsoon.

Average Daylight Hours in Mangalore for September

The chart illustrates the variation in daylight duration in Mangalore throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec11h 26m11h 42m12h 3m12h 24m12h 43m12h 52m12h 47m12h 31m12h 10m11h 49m11h 30m11h 21m
Data source: Mangalore daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Mangalore

As September arrives in Mangalore, the coastal winds maintain a gentle yet invigorating presence, with an average speed of 3.0 m/s (7 mph). This consistency reflects a slight dip from the peak breezes of July, which reached 3.7 m/s (8 mph), but remains on par with the previous month of August. The winds during this time provide a refreshing contrast to the lingering warmth, creating a pleasant atmosphere that invites outdoor exploration. Overall, the trend through the months shows a gradual increase in wind speed from the calmer beginnings of the year, peaking mid-summer before stabilizing in the autumn. As the year progresses, Mangalore’s September winds are a reminder of the region's vibrant coastal climate, blending both comfort and energy.

Average September Wind Speed in Mangalore

The chart displays monthly wind speed patterns in Mangalore, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.12.72.52.43.13.23.73.03.0 m/s2.22.32.4
Data source: Mangalore September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Mangalore Compares to Other Months

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

In September, the weather is characterized by higher humidity and significant rainfall, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (88°F). This month experiences heavy precipitation totaling 317 mm (12.5 in) over 26 days, creating a lush and vibrant atmosphere. In contrast, January offers a much drier climate, with only 9 mm (0.3 in) of rain occurring over just 2 days. While temperatures remain similar, with a minimum of 23°C (73°F) to a maximum of 31°C (88°F), January's humidity drops to 66%, resulting in a more comfortable and pleasant weather experience. For further details on January weather, check out Mangalore weather in January.

September and February present stark contrasts in weather patterns. In September, the temperatures typically range from a minimum of 24°C (76°F) to a maximum of 31°C (88°F), accompanied by significant rainfall totaling 317 mm (12.5 in) over 26 days, resulting in high humidity levels of 84%. In contrast, February offers a warmer temperature range, with a minimum of 23°C (74°F) and a maximum reaching up to 34°C (94°F), but it remains incredibly dry with only 3 mm (0.1 in) of precipitation and no rainy days, leading to a much lower humidity of 66%. For more details, you can check Mangalore weather in February.

In comparing the weather between September and March, notable differences emerge. September typically experiences warmer conditions with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (88°F), alongside high humidity at 84%. This month is also characterized by significant rainfall, with a total precipitation of 317 mm (12.5 in) over 26 days. In contrast, March presents a slightly cooler climate, with average temperatures from 24°C (76°F) to 32°C (91°F), but with drastically lower precipitation of only 16 mm (0.6 in) across just 3 days and reduced humidity at 74%. For further details about March weather, you can explore Mangalore weather in March.

September and April both feature warm temperatures, but they differ significantly in terms of precipitation and humidity. In September, the average temperature ranges from a minimum of 24°C (76°F) to a maximum of 31°C (88°F), with high humidity at 84%. However, the month is characterized by heavy rainfall, receiving about 317 mm (12.5 in) over 26 days. In contrast, April offers slightly higher average temperatures, with lows of 25°C (77°F) and highs reaching 32°C (90°F), but it sees much less rain, totaling only 71 mm (2.8 in) over just 10 days and a lower humidity level of 77%. For those looking to explore the climate in April, more details can be found here: Mangalore weather in April.

In comparing the weather of September and May, both months exhibit similar minimum temperatures, averaging around 24°C (75°F to 76°F). However, May tends to be warmer overall, with an average temperature of 29°C (84°F) compared to September's 27°C (80°F). The maximum temperatures also reflect this trend, reaching up to 33°C (91°F) in May, while September sees a peak of 31°C (88°F). Precipitation differs significantly; September experiences more rainfall with 317 mm (12.5 in) over 26 days, whereas May receives 214 mm (8.4 in) across 20 days. Additionally, humidity levels are higher in September at 84%, compared to May's 76%. Overall, May offers warmer and slightly drier conditions, while September is characterized by increased rainfall and humidity. For more details, you can check Mangalore weather in May.

September and June in Mangalore present a comparison of weather that highlights both similarities and differences. Both months have a minimum temperature of 24°C (76°F) and an average temperature close to 27°C (80°F), indicating a consistent warmth throughout. However, June is slightly warmer at its maximum with temperatures reaching 32°C (90°F) compared to September's peak of 31°C (88°F). Precipitation levels are notably higher in June, with 547 mm (21.5 in) over 29 days, versus September's 317 mm (12.5 in) over 26 days, suggesting that June typically experiences heavier rainfall. The humidity levels are similar, with September at 84% and June slightly lower at 80%. For a more detailed look at June weather conditions, you can visit Mangalore weather in June.

When comparing the weather in September and July, both months exhibit warm temperatures, with September slightly warmer, featuring an average temperature of 27°C (80°F) compared to July’s 26°C (80°F). While the minimum temperature remains the same at 24°C (76°F), September sees a maximum of 31°C (88°F), slightly higher than July’s 30°C (87°F). However, September is notably drier, with 317 mm (12.5 in) of precipitation over 26 days, in contrast to July's heavier rainfall of 592 mm (23.3 in) over 31 days. Humidity levels are quite similar, with September at 84% and July at 86%. For more details on July weather, you can visit Mangalore weather in July.

September weather presents a slight increase in daily temperatures compared to August, with a minimum of 24°C and an average of 27°C, peaking at 31°C. In contrast, August has slightly cooler temperatures, ranging from a minimum of 23°C to a maximum of 29°C, making it the milder month overall. However, September is notably wetter, receiving 317 mm of precipitation over 26 days, compared to August's heavier rainfall of 534 mm over 31 days. Furthermore, humidity remains high in both months, with September at 84% and August at 87%. For more information on August weather, you can visit Mangalore weather in August.

In September, the weather features a relatively stable temperature range with a minimum of 24°C (76°F), an average of 27°C (80°F), and a maximum of 31°C (88°F). However, this month also sees significant precipitation, totaling 317 mm (12.5 in) over 26 days, contributing to a high humidity level of 84%. In contrast, October maintains a similar temperature range with the same minimum and average temperatures and a slightly higher maximum of 31°C (89°F). While October also witnesses considerable rainfall, totaling 327 mm (12.9 in) over 24 days, the humidity decreases to 77%. For more details, visit Mangalore weather in October.

In comparing the weather of September and November, we see distinct differences in temperature and precipitation. September tends to be slightly cooler, with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 31°C (88°F), while November offers warmer averages, peaking at 32°C (90°F). Additionally, September experiences much heavier rainfall, accumulating 317 mm (12.5 in) over 26 days, compared to November's significant drop to 105 mm (4.1 in) across just 11 days. Humidity levels also differ, being notably higher in September at 84% compared to November's more comfortable 75%. For more detailed insights on the weather in November, you can visit Mangalore weather in November.

In September, the weather is characterized by warmer temperatures and significant rainfall, with averages around 27°C (80°F) and a high of 31°C (88°F). The month experiences substantial precipitation, accumulating 317 mm (12.5 in) over 26 days, accompanied by high humidity levels at 84%. In contrast, December features slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 27°C (82°F), reaching a maximum of 32°C (90°F). The rain is considerably reduced, with only 23 mm (0.9 in) falling over just 5 days, and humidity drops to a more comfortable 70%. For a detailed look at Mangalore's December weather, you can visit Mangalore weather in December.

Compare Mangalore's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Mangalore

As September rolls in, Mangalore experiences a significant shift in weather, characterized by its high humidity and substantial rainfall. With the monsoon in full swing, the city receives an average of 317 mm over 26 days, making this month markedly wetter compared to the drier months of summer. While temperatures remain warm, averaging around 27°C, the prevalence of rain and humidity creates a vibrant, lush landscape, setting September apart from the typically dry months that precede it. For a deeper understanding of how this unique weather pattern fits into Mangalore's overall climate, visit Mangalore Climate.