Last updated: August 21, 2025
In September, the picturesque city of Shillong in India experiences a vibrant interplay of weather elements. With maximum temperatures reaching 30°C (86°F) and an average of 22°C (72°F), visitors can expect a pleasantly warm atmosphere, though nights can turn cooler with lows of 18°C (64°F). The month is characterized by significant rainfall, with a total precipitation of 391 mm (15.4 in) over 29 days, creating a lush, green landscape that Shillong is renowned for. Humidity levels hover around a balmy 89%, contributing to the verdant beauty of this hill station, making it a unique destination for nature lovers and adventure seekers alike.
As September unfolds in Shillong, temperatures begin to reflect the city's transition into autumn. The minimum temperature hovers around 18°C (64°F), offering a mild retreat from the warmth of summer. The average temperature stabilizes at 22°C (72°F), making it a comfortable time for outdoor exploration. By day, maximum temperatures reach up to 30°C (86°F), ensuring that the afternoons still carry a trace of summer's warmth. This month marks a subtle shift, as the weather becomes slightly cooler than the preceding months, with a hint of the briskness to come in October. Overall, September provides an inviting climate for both locals and travelers, perfect for enjoying Shillong's lush landscapes and vibrant culture.
In September, Shillong experiences a significant drop in rainfall compared to the preceding monsoon months, with 391 mm (15.4 in) of precipitation spread over 29 days. This marks a noticeable decline from the torrential downpours of July and August, where the city received 698 mm (27.5 in) and 556 mm (21.9 in) respectively. However, the rainfall remains substantial, reflecting the tail-end of the monsoon season. The transition into October sees even less precipitation, emphasizing a gradual shift towards drier months ahead. As the rains lessen, Shillong’s lush landscapes continue to thrive, showcasing the beauty that the monsoon bestows before giving way to cooler, drier conditions.
In September, Shillong, India, experiences a notable humidity level of 89%, maintaining the high moisture typical of the monsoon season. As summer fades, the humidity begins to stabilize after peaking in the previous months, with July and August recording the highest levels at 91% and 90%, respectively. This trend reflects a gradual decrease from the intense moisture of the monsoon, yet September’s humidity is still considerably elevated compared to the drier months of March and April. Moving into autumn, the humidity remains relatively high, with October also recording 89%, indicating that while the intensity of the rains may lessen, the lushness of Shillong’s verdant landscape continues to thrive.
In September, Shillong experiences an UV Index of 13, categorizing it as extreme, with a burn time of just 10 minutes. This trend indicates that, following the peak in June and July, September maintains a similarly high level of UV intensity, making sun safety a critical consideration. As the year transitions into the cooler months, October's UV Index dips to 10, suggesting a significant drop in solar exposure. It's essential for residents and visitors alike to remain vigilant about sun protection as the monsoon season wraps up and outdoor activities become more prevalent. For detailed information on UV trends throughout the year, check out Shillong UV Index.
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As September rolls in, Shillong experiences a delightful blend of sunshine and refreshing breezes, with 274 hours of sunlight gracing the month. This marks a notable rebound from the lower figures of July, which saw only 235 hours of sunshine, highlighting a seasonal shift as the city transitions from the monsoons. In comparison, September enjoys a similar level of sunlight as June and August, indicating a relatively balanced climate that remains inviting for outdoor exploration. This gentle return of sunshine lays the groundwork for a vibrant atmosphere, echoing the lively spirit of Shillong as autumn approaches. With the promise of 300 hours in October, the days ahead are sure to shine brightly, inviting both locals and travelers to bask in the stunning natural beauty of this hill station.
In Shillong, India, the likelihood of sunny weather varies dramatically throughout the year, with September marking a notable shift. After months of heavy rains, the chance of sunshine in September is 16%, a modest increase from the dismal heights of the monsoon season in July and August. The summer months show a downward trend in sunshine, plunging to just 4% in July, but as the calendar advances to October, the probability of clear skies rises sharply to 47%. This pattern highlights Shillong's transition from the lush, rain-soaked landscapes of monsoon season toward a drier, more vibrant autumn, where the likelihood of sun becomes increasingly enticing.
In September, Shillong experiences a slight decline in daylight duration, offering 12 hours of light each day. This month marks a transition as the intense brightness of summer gradually gives way to the softer luminance of autumn. Following a peak of 13 hours in the preceding months of May through August, September's daylight reflects a subtle shift towards shorter days. As the year progresses, daylight durations continue to diminish, setting the stage for the cozy, introspective months ahead. This gradual ebbing of daylight, accentuated by the region's lush greenery, creates a perfect backdrop for those seeking to unwind in Shillong's natural beauty.
September in Shillong brings a gentle breeze, with average wind speeds dropping to 1.2 m/s (3 mph). This slight decrease from the summer months reflects the transition into autumn, where the winds begin to mellow after the more blustery conditions of June and August, which saw speeds reach up to 2.0 m/s (4 mph). While the air remains refreshing, the softer winds in September encourage a serene atmosphere, perfect for leisurely strolls through the picturesque landscapes. As the year progresses into October and November, wind speeds stabilize around the 1.3 m/s (3 mph) mark, contributing to the tranquil ambiance of this enchanting hill station.
Weather in Shillong varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Shillong, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is significantly warmer and more humid compared to January, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 30°C (86°F). During this month, precipitation is quite heavy, totaling 391 mm (15.4 in) over 29 days, contributing to the high humidity of 89%. In contrast, January experiences a much cooler climate, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 23°C (73°F). Precipitation is minimal in January, amounting to only 21 mm (0.8 in) over just 5 days, and the humidity drops to 76%. For more detailed insights into January weather, you can visit Shillong weather in January.
September and February present strikingly different weather conditions. In September, temperatures range from a mild 18°C (64°F) to a warm 30°C (86°F), accompanied by high humidity levels at 89%. The month experiences significant rainfall, totaling 391 mm (15.4 in) over 29 days, making it one of the wettest months. In contrast, February offers a much cooler environment, with temperatures varying from a low of 5°C (41°F) to a pleasant high of 24°C (75°F). Precipitation in February is considerably less, at just 43 mm (1.7 in) over only 8 days, and humidity dips to a comfortable 69%. For more details on February's climate, check out Shillong weather in February.
September and March exhibit quite distinct weather patterns. In September, temperatures range from a minimum of 18°C (64°F) to a maximum of 30°C (86°F), with an average of 22°C (72°F). This month is characterized by high humidity at 89%, along with frequent rainfall, totaling 391 mm (15.4 in) over 29 days. In contrast, March features cooler temperatures, with a minimum of 7°C (45°F), an average of 17°C (63°F), and a maximum of 28°C (83°F). The precipitation is significantly lower, at 129 mm (5.1 in) across 19 days, and the humidity drops to a more comfortable 53%. For more details on March weather in Shillong, you can check Shillong weather in March.
September and April present notably different weather patterns in Shillong. September experiences warmer temperatures, with a minimum of 18°C (64°F) and an average of 22°C (72°F), peaking at 30°C (86°F). However, this month also sees significant rainfall, with 391 mm (15.4 in) spread over 29 days, resulting in high humidity levels at 89%. In contrast, April is milder, characterized by a minimum temperature of 11°C (52°F) and an average of 19°C (66°F), reaching a maximum of 27°C (81°F). The precipitation in April is notably lower, with 265 mm (10.4 in) over 26 days and a much more comfortable humidity of 47%. For more details, check out Shillong weather in April.
In comparing September and May weather, both months experience relatively warm temperatures, but September tends to be slightly hotter with an average temperature of 22°C (72°F) compared to May's 21°C (69°F). While September has a maximum temperature of 30°C (86°F), May reaches a maximum of 29°C (84°F). However, September is characterized by higher humidity at 89%, compared to May's more comfortable 79%. Precipitation is also noteworthy, with September experiencing 391 mm (15.4 in) over 29 days, while May has a slightly higher total of 428 mm (16.9 in) across 30 days. For more detailed weather information, you can check Shillong weather in May.
In comparing the weather between September and June, both months exhibit similar average temperatures, hovering around 22°C (72°F). However, September tends to be slightly warmer with a maximum temperature of 30°C (86°F) compared to June's peak of 29°C (85°F). Notably, September experiences less precipitation, with 391 mm (15.4 in) over 29 days, while June sees a higher amount of rainfall at 552 mm (21.7 in) across 30 days. Humidity levels remain fairly similar, with September at 89% and June just a bit lower at 86%. For more detailed information, you can check out Shillong weather in June.
In comparing the weather of September and July, both months showcase similar maximum temperatures, peaking at around 30°C (86°F). However, September presents marginally cooler conditions with average temperatures ranging from a minimum of 18°C (64°F) to an average of 22°C (72°F), while July boasts a minimum of 19°C (66°F) and an average of 23°C (73°F).
Precipitation levels further distinguish these months; September receives 391 mm (15.4 in) of rain over 29 days, while July is much wetter with 698 mm (27.5 in) spread over 30 days. Both months have high humidity, but July is slightly more humid at 91% compared to September's 89%. For a more detailed look at the climate during July, check out this link: Shillong weather in July.
In September, the weather remains quite warm, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 30°C (86°F), averaging around 22°C (72°F). The month sees a significant decrease in precipitation, totaling 391 mm (15.4 in) over 29 days, compared to August's 556 mm (21.9 in) over 31 days. Humidity in September is slightly lower at 89%, compared to 90% in August, where temperatures also ranged from a minimum of 19°C (67°F) to a maximum of 30°C (86°F). Thus, while both months share warm temperatures, September offers slightly drier and less humid conditions. For more details on the weather in August, check out Shillong weather in August.
In September, Shillong experiences warmer temperatures with a minimum of 18°C (64°F) and an average of 22°C (72°F), peaking at 30°C (86°F). The month is marked by significant rainfall, totaling 391 mm (15.4 in) across 29 days, alongside consistently high humidity levels of 89%. In contrast, October sees a slight decrease in temperature, with a minimum of 12°C (54°F) and an average of 21°C (69°F), reaching a maximum of 29°C (85°F). Rainfall in October is also reduced, totaling 275 mm (10.8 in) over 23 days, while humidity remains steady at 89%. For more detailed information, visit Shillong weather in October.
September in Shillong offers a much warmer climate, with average temperatures around 22°C (72°F) and highs reaching up to 30°C (86°F). However, it also brings significant rainfall, with 391 mm (15.4 inches) of precipitation over 29 days, making it one of the wettest months. In contrast, November presents a cooler atmosphere, with average temperatures dropping to 17°C (62°F) and maximums around 25°C (78°F). Rainfall significantly decreases to just 30 mm (1.2 inches) over 7 days, providing a much drier experience. For more detailed weather information, check out Shillong weather in November.
September and December present striking contrasts in weather. In September, temperatures range from a minimum of 18°C (64°F) to a maximum of 30°C (86°F), showcasing vibrant warmth, albeit with considerable precipitation of 391 mm (15.4 in) over 29 days, resulting in high humidity levels at 89%. In contrast, December brings a much cooler climate with temperatures dipping to a minimum of 5°C (41°F) and peaking at 23°C (73°F). This month experiences significantly less rainfall at just 28 mm (1.1 in) over 3 days, and humidity decreases slightly to 86%. For more details, you can check Shillong weather in December.
As September unfolds in Shillong, the weather introduces a unique charm characterized by elevated humidity and a noticeable increase in precipitation. With the city experiencing nearly daily rain, the lush green landscapes reach their peak vibrancy, making it a picturesque time for nature lovers. This month stands apart from the drier spells of summer and the cooler temperatures of winter, offering an experience rich in both moisture and warmth with average highs lingering around a comfortable 22°C. While the frequency of rain might deter some, those who embrace the season often find it to be a refreshing respite. To further explore the dynamic weather patterns, check out Shillong Climate.