Last updated: August 21, 2025
September in Guwahati, India is characterized by a hot and humid climate, with maximum temperatures reaching up to 36°C (98°F) and an average of 28°C (83°F). The month sees a substantial amount of rainfall, accumulating to 410 mm (16.1 in) over approximately 27 days, leading to a humidity level that can soar as high as 92%. This blend of heat and moisture creates a vibrant atmosphere, as the region transitions from the sweltering summer into the refreshing onset of the monsoon season. Despite the frequent downpours, September in Guwahati offers a unique charm, with lush greenery and a rich cultural tapestry coming alive in the wet weather.
In September, Guwahati experiences a noticeable transition as temperatures begin to cool slightly from the intense summer months. With minimums averaging 23°C (74°F) and an average temperature of 28°C (83°F), the weather remains relatively warm but is more comfortable compared to the sweltering peaks of August. The maximum temperature reaches around 36°C (98°F), indicating the lingering warmth of summer while gradually paving the way for the cooler days of October. This month often signals the end of the heavy monsoon rains, making it an ideal time to explore the lush greenery and vibrant culture of the city, all embraced by a quintessential Indian autumn setting.
September in Guwahati, India, marks a significant transition in the monsoon season, characterized by abundant rainfall and numerous rainy days. With a precipitation total of 410 mm (16.1 in) falling over 27 days, the month captures the tail end of the heavy monsoon period, following the peaks of July's 615 mm and August's 505 mm. This consistent downpour not only sustains the lush greenery of the region but also signifies a gradual decrease compared to the preceding months. As the city transitions into October, the rainfall tapers off dramatically, leading to a much drier climate in the subsequent months, where precipitation dips to 177 mm. This month serves as a bridge between peak monsoon intensity and the drier autumn seasons, showcasing the diverse climatic patterns that define Guwahati's weather.
As the monsoon season in Guwahati winds down, September showcases a high humidity level of 92%, maintaining the trend set by the previous month. The transition from the strenuous heat of summer, with its peak humidity in July at 93%, to the onset of autumn brings only a slight easing in moisture. Interestingly, the humidity levels in September and August are nearly identical, suggesting a lingering dampness in the air typical of the region's weather patterns. This consistency in humidity continues into October, which still holds a substantial 89%. Overall, this month serves as a bridge, where the oscillation between high humidity and the cooler, less humid months is clearly evident, paving the way for a gradual shift toward dryer conditions as the year progresses.
In September, the UV Index in Guwahati remains at a notable 11, categorizing it as extreme with a burn time of just 10 minutes. This consistent high exposure level continues a trend seen throughout the summer months, where UV levels peaked during the intense heat of May through July. As autumn approaches, the UV Index typically begins to decline, transitioning to a very high level in October. However, September still calls for caution; outdoor enthusiasts and residents alike should take appropriate sun protection measures to shield themselves from harmful rays. For more details on UV trends in Guwahati, visit Guwahati UV Index.
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September in Guwahati, India, experiences 288 hours of sunshine, maintaining a warm vibrancy as the monsoon season recedes. This month showcases a slight dip from the sun-soaked days of August, yet remains significantly better than the cloudy July, which offered just 258 hours. As the year progresses, sunshine hours peak in March at 327 hours, reflecting the region's transition into a sunnier and more vibrant phase, while April and May follow closely behind with 316 and 312 hours, respectively. Overall, September embodies a delightful balance as it bridges the lush greenery of the monsoon months and the crisp, clearer skies of autumn, offering residents and visitors an inviting atmosphere soaking in the last touches of summer before the year winds down.
September in Guwahati, India, marks a transition into the monsoon’s waning influence, but the likelihood of sunny weather remains relatively low, with only a 24% chance of sunshine. This is a notable drop compared to the sun-soaked months of January through April, where the probabilities hover between 62% and 74%. Following the sweltering heat of May, the sun’s appearance diminishes dramatically through the monsoon months, reaching a mere 4% in August. While September offers a slight improvement, it still falls short when compared to the sunnier months of October, November, and December. As the year progresses towards its end, Guwahati begins to enjoy a resurgence of brighter days, reminding us that the promise of sun is just around the corner.
As the months transition in Guwahati, India, September brings a subtle shift in daylight hours, offering about 12 hours of light each day. This is a slight decline from the summer peak of 13 hours seen from May through August, indicating the onset of autumn. From the promise of vibrant, sun-soaked days, the daylight gradually wanes, echoing the changing seasons. Following September, daylight continues to decrease, culminating in the shorter days of October, where sunlight retreats to just 11 hours. This pattern exemplifies the region's temperate climate, where daylight duration elegantly ebbs and flows throughout the year, creating a rhythmic dance of light and darkness.
As the seasons shift in Guwahati, September ushers in a gentle breeze with an average wind speed of 1.5 m/s (3 mph), making it the calmest month of the year. This slight dip in wind patterns follows the more invigorating gusts of the summer months, where speeds hovered around 1.8 to 2.4 m/s. Interestingly, September marks a transitional phase; while the winds may slow down, they carry with them the promise of autumn's arrival. As the air cools slightly, this tranquil atmosphere provides a respite after the heat of summer, reminding us that nature's cycles are beautifully rhythmic, with each month bringing its own unique charm to the vibrant landscape of Guwahati.
Weather in Guwahati varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Guwahati, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit contrasting weather patterns in terms of temperature, precipitation, and humidity. In September, temperatures are significantly warmer, ranging from a minimum of 23°C (74°F) to a maximum of 36°C (98°F), accompanied by high humidity levels of 92%. This month also experiences substantial rainfall, with 410 mm (16.1 in) spread over 27 days. In stark contrast, January showcases cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 29°C (84°F), and far less precipitation of only 11 mm (0.4 in) over just three days. The humidity in January is also lower at 70%. For more detailed information, you can check Guwahati weather in January.
In September, the weather is marked by warm temperatures, with an average of 28°C (83°F) and peak highs reaching as high as 36°C (98°F). This month is also characterized by significant rainfall, with about 410 mm (16.1 in) of precipitation spread over 27 days, creating a humid environment with humidity levels around 92%. In contrast, February experiences much cooler conditions, with average temperatures around 20°C (68°F) and maximums reaching 30°C (87°F). The month is relatively dry, with only 25 mm (1.0 in) of precipitation over just 4 days and humidity levels dropping to 71%. For a more detailed look at the weather during February, you can check Guwahati weather in February.
September and March present a striking contrast in weather patterns. In September, temperatures start at a minimum of 23°C (74°F) and can soar to a maximum of 36°C (98°F) with an average of 28°C (83°F). The month is characterized by high humidity at 92% and substantial rainfall, accumulating to 410 mm (16.1 in) over 27 days. In contrast, March offers a more temperate climate, with lows of 14°C (57°F), an average of 24°C (75°F), and similar maximums of 36°C (97°F). The humidity drops significantly to 50%, and precipitation is minimal at just 61 mm (2.4 in) over 9 days. For more details about the weather in March, check out Guwahati weather in March.
In comparing September and April, one can observe significant differences in weather patterns. September features warmer temperatures, with average highs reaching 36°C (98°F) and a notably high humidity level of 92%, making it feel more oppressive. The month also experiences substantial rainfall, receiving about 410 mm (16.1 in) over 27 days. In contrast, April offers a more moderate climate, with average temperatures peaking at 37°C (99°F) but lower humidity at 45%, resulting in a drier feel. Additionally, April sees less precipitation, totaling around 165 mm (6.5 in) over 19 days. For a deeper look at the weather characteristics in April, check out this link: Guwahati weather in April.
Comparing the weather in September and May reveals some notable differences despite their similar maximum temperatures. In September, the minimum temperature is slightly higher at 23°C (74°F), with an average of 28°C (83°F), while May has a lower minimum of 20°C (68°F) and an average of 26°C (80°F). Both months experience 36°C (97°F) maximum temperatures. However, September is characterized by significantly higher precipitation, totaling 410 mm (16.1 in) over 27 days, compared to May’s 269 mm (10.6 in) during the same number of days. Additionally, September's humidity is much higher at 92%, compared to May's more comfortable 76%. For more details, check out Guwahati weather in May.
In comparing the weather of September and June, both months experience similar temperature ranges, with minimums around 23°C (74°F), averages at 28°C (83°F), and maximums reaching 36°C (98°F). However, June tends to have slightly higher precipitation, with 429 mm (16.9 in) over 29 days, compared to September's 410 mm (16.1 in) over 27 days. Additionally, the humidity in September is marginally higher at 92%, while June has 88%. These subtle differences indicate that while both months are warm, June experiences a bit more rain than September. For a closer look at the conditions in June, you can check Guwahati weather in June.
In comparing the weather between July and September, both months are characterized by high temperatures and humidity, but some notable differences emerge. July experiences slightly warmer conditions, with an average temperature of 29°C (84°F) and a maximum of 37°C (99°F), compared to September's average of 28°C (83°F) and max of 36°C (98°F). However, July also sees significantly higher rainfall, with 615 mm (24.2 in) over 30 days, while September records 410 mm (16.1 in) across 27 days. Humidity levels are quite similar, with July at 93% and September at 92%. For a deeper look at the conditions during this month, see Guwahati weather in July.
In comparing the weather of September to that of August, we observe some notable differences. September experiences a slightly lower temperature range, with minimum temperatures of 23°C (74°F) compared to August's minimum of 25°C (77°F). The average temperature in September hovers around 28°C (83°F), just a degree cooler than August's 29°C (85°F). While September's maximum temperature reaches 36°C (98°F), it is less extreme than August's peak of 38°C (100°F). In terms of precipitation, September receives 410 mm (16.1 in) over 27 days, which is less than August's 505 mm (19.9 in) across 30 days. However, both months share a high humidity level of 92%, contributing to a muggy atmosphere. For more detailed insights on August weather, you can check Guwahati weather in August.
In September, the weather is characterized by higher temperatures, with a minimum of 23°C (74°F) and an average of 28°C (83°F), peaking at a sweltering 36°C (98°F). The month also experiences significant rainfall, totaling 410 mm (16.1 in) over 27 days, contributing to a high humidity level of 92%. In contrast, October sees a slight drop in temperatures, with a minimum of 19°C (67°F) and an average of 27°C (80°F), while still reaching a maximum of 36°C (97°F). Rainfall decreases considerably to 177 mm (7.0 in) across 19 days, and humidity levels moderate to 89%. For more specific information on weather patterns in October, you can check Guwahati weather in October.
In September, the weather is noticeably warmer, with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 36°C (98°F), and an average of 28°C (83°F). The month is marked by high humidity at 92% and significant rainfall, with 410 mm (16.1 in) of precipitation over 27 days. In contrast, November brings much cooler temperatures, with a minimum of 14°C (57°F), an average of 23°C (73°F), and a maximum of 32°C (89°F). Rainfall is significantly reduced to just 15 mm (0.6 in) over 4 days, and the humidity decreases slightly to 86%. For more detailed information about November weather, you can check Guwahati weather in November.
September and December exhibit strikingly different weather patterns. In September, temperatures range from a minimum of 23°C (74°F) to a maximum of 36°C (98°F), with an average of 28°C (83°F). The month is also marked by substantial precipitation, totaling 410 mm (16.1 in) over 27 days, accompanied by high humidity levels at 92%. In contrast, December sees a significant drop in temperature, with a minimum of 10°C (51°F) and a maximum of 30°C (85°F), averaging around 19°C (66°F). This month is much drier, receiving only 14 mm (0.6 in) of rain over 3 days and a slightly lower humidity at 83%. For more detailed weather insights, check Guwahati weather in December.
As September unfolds in Guwahati, the weather presents a striking contrast to the preceding months. The temperatures remain warm, with a notable average of 28°C (83°F), yet the peak climbs can reach a scorching 36°C (98°F). This month also ushers in significant rainfall, with over 410 mm (16.1 in) and frequent downpours on 27 days. The high humidity levels, soaring to 92%, add to the sultry atmosphere, creating a tangible shift from the drier spell of summer. For a deeper understanding of what to expect throughout the year, visit Guwahati Climate.