Last updated: August 21, 2025
September in Shimla, India, presents a blend of mild temperatures and substantial precipitation. With maximum highs reaching 27°C (82°F) and average temperatures around 21°C (69°F), the weather remains comfortably warm, yet the nights can be cooler, dipping to a refreshing 13°C (56°F). This month is characterized by an average of 275 mm (10.8 in) of rain, spread over approximately 21 days, creating a lush, vibrant landscape. Coupled with a high humidity level of 82%, September offers a unique atmosphere, perfect for enjoying the hill station's scenic beauty while embracing the refreshing monsoon season.
In September, Shimla enjoys a pleasant transition as summer gracefully gives way to autumn. The temperatures range from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), creating a comfortable climate perfect for exploring the hills. The average temperature settles around 21°C (69°F), making it one of the more enjoyable months of the year. As the monsoon recedes, expect clearer skies and lush greenery, inviting visitors to partake in outdoor adventures amidst the stunning Himalayan backdrop. This month marks a delightful shift from the sweltering heat of summer, offering a refreshing escape in the cool, crisp air of the mountains.
September in Shimla, India, marks a significant shift in the monsoon narrative, as the region experiences an impressive 275 mm (10.8 in) of precipitation over approximately 21 days. This substantial amount follows the heavy rains of July and August, with July peaking at 407 mm (16.0 in) and August at 357 mm (14.1 in). As the monsoon begins to recede, September offers a more moderated downpour that still keeps the lush landscape vibrant and green. Notably, this month lies in stark contrast to the drier months that follow, such as October, which sees a sharp drop to just 38 mm (1.5 in) of rainfall. This trend highlights Shimla's seasonal variations, where the lushness of September sets the stage for the transformation into the drier autumn months ahead.
As summer fades, September in Shimla, India, brings a notable shift in humidity, with levels reaching 82%. This marks a slight decrease from the peak of 87% in August, but still reflects the lingering moisture of the monsoon season. The transition from the arid months of April to June, which each recorded a low of 38%, shows how dramatically the environment changes as the year progresses. Following September, humidity tapers off to 78% in October, signaling the onset of autumn, while the overall trend from winter's dry chill at 63% in January to the dampness of September paints a vivid picture of Shimla's diverse and dynamic climate throughout the year.
As September arrives in Shimla, the UV Index settles at 10, indicating a very high level of sun exposure. This is a slight decrease from the intense highs of summer, with burn time extending to 15 minutes. The trend throughout the year shows a progressive increase in UV levels from January’s 6 in winter to peak extremes of 13 in the summer months. As autumn approaches, this gradual decline reflects the onset of milder weather, yet it remains crucial for residents and travelers alike to remain vigilant, especially given the sharp increases seen in earlier months. For more detailed insights into Shimla's UV conditions, visit Shimla UV Index.
UV Risk Categories
September in Shimla, India, welcomes a gentle transition from the vibrant summer months, marked by 319 hours of sunshine. This slight dip from August’s 318 hours reflects the onset of autumn, a season that brings a refreshing coolness to the air. Observing the trends throughout the year, it's evident that sunlight peaks in May with 380 hours, gradually tapering off as monsoon gives way to fall. However, September still boasts a healthy amount of sunlight, staying above the 300-hour mark, which makes it an ideal time for outdoor activities amid the picturesque landscapes. As the warm days of summer fade, visitors can relish the balance of warmth and coolness, making this month a charming time to experience Shimla's natural beauty.
In Shimla, India, the likelihood of sunny weather follows a notable pattern throughout the year. As the seasons change, January boasts the highest chance of sunny days at a remarkable 77%, gradually diminishing until it reaches a low of 28% in the rainy month of July. Following this dip, the chances of sunshine begin to rebound, peaking again in October at 78%. However, September itself shows a modest 33% likelihood of clear skies, reflecting the tail end of the monsoon season. This trend suggests that while September can be somewhat unpredictable, visitors can expect increasingly brighter days as autumn approaches, making October a highly favorable time for enjoying Shimla's scenic beauty.
In Shimla, India, the transition into September marks a gentle decline in daylight hours, as the city enjoys 12 hours of sunlight—a slight decrease from the longer days of summer. Starting with just 10 hours in January, daylight steadily increases through spring, peaking at 14 hours in June. July and August maintain this elevation, but as September arrives, the days begin to shorten again, heralding the approach of autumn. This pattern reflects a natural ebb and flow, where longer daylight in the warmer months gradually gives way to the softer, shorter days of fall, creating a picturesque backdrop for the scenic landscape characteristic of Shimla.
In September, the winds in Shimla gently whisper at an average speed of 1.2 m/s (3 mph), marking a subtle decline from the summer's softer breezes. This month transitions the vibrant energies of early autumn, where the consistent, yet modest winds invite a sense of tranquility. From the earlier months of the year, we see a gradual rise in wind speeds up to April, followed by a dip during the summer, hinting at the valley's calmer atmosphere. As the region edges into October, the winds pick up slightly again, settling into a steady rhythm that mirrors the changing foliage. Overall, September's gentle breezes reflect the serene beauty of Shimla, capturing the essence of a landscape preparing for the seasonal shift.
Weather in Shimla varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Shimla, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is generally warm and humid, with average temperatures ranging from a mild 13°C (56°F) to a comfortable 27°C (82°F). However, it's also quite rainy, with approximately 275 mm of precipitation over 21 days, contributing to a high humidity of 82%. In stark contrast, January brings much colder conditions, where temperatures can plunge to a minimum of -5°C (23°F) and only rise to around 18°C (65°F) during the day. Rain is less frequent in January, with only 84 mm of precipitation over 8 days, and the humidity level is noticeably lower at 63%. For more details, you can check Shimla weather in January.
In September, the weather is characterized by mild temperatures, with a minimum of 13°C (56°F) and an average of 21°C (69°F), reaching a maximum of 27°C (82°F). The month is quite wet, experiencing a significant 275 mm (10.8 in) of precipitation over 21 days, accompanied by high humidity levels of 82%. In contrast, February presents a starkly different climate, with temperatures dipping as low as -4°C (26°F), averaging 9°C (48°F), and a warmer peak of 22°C (73°F). Precipitation decreases substantially to 89 mm (3.5 in) over just 9 days, and humidity is notably lower at 53%. For more information on February weather conditions, you can check Shimla weather in February.
In September, weather conditions are generally warm and humid, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), and an average of 21°C (69°F). The month also experiences significant rainfall, totaling 275 mm (10.8 in) over about 21 days, contributing to a high humidity of 82%. In contrast, March shows a more varied temperature range, with nightly lows dipping to -3°C (27°F) and daytime highs reaching up to 28°C (82°F), averaging at 13°C (56°F). Precipitation is considerably lower at 99 mm (3.9 in) across about 13 days, resulting in a much drier atmosphere with only 47% humidity. For more details on March weather, you can visit Shimla weather in March.
When comparing the weather in September and April, notable differences emerge. September tends to be warmer overall, with average temperatures around 21°C (69°F) and highs reaching up to 27°C (82°F). However, it is also wetter, with significant precipitation of 275 mm (10.8 in) spread over 21 days and high humidity at 82%. In contrast, April enjoys milder temperatures, with an average of 18°C (65°F) and peaks of 30°C (87°F), but it is considerably drier, receiving only 94 mm (3.7 in) of rain over 13 days and a much lower humidity level of 38%. For more detailed insights into April's climate specifically, visit Shimla weather in April.
September and May present contrasting weather patterns. In September, the temperatures range from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), with an average of 21°C (69°F). The month is characterized by high humidity at 82% and significant rainfall, totaling 275 mm (10.8 in) over 21 days. In contrast, May offers warmer conditions, boasting a higher maximum temperature of 31°C (89°F) and a lower minimum of 9°C (49°F), with an average temperature similar to September at 20°C (69°F). The precipitation in May is markedly less, totaling only 90 mm (3.6 in) over 14 days, alongside a much lower humidity level of 38%. For more detailed information, check Shimla weather in May.
When comparing the weather in September and June, September tends to be cooler with an average temperature of 21°C (69°F), while June is generally warmer, averaging at 22°C (71°F). However, June experiences significantly higher maximum temperatures, reaching up to 32°C (90°F) compared to September's high of 27°C (82°F). Precipitation is more prevalent in September, with 275 mm (10.8 in) falling over 21 days, whereas June has less rainfall at 159 mm (6.3 in) across 16 days. Additionally, September is much more humid, with levels at 82%, in stark contrast to June’s relatively dry 38%. For more detailed information, check out Shimla weather in June.
In comparing the weather between September and July, we see notable differences in temperature and precipitation patterns. September offers a milder temperature range with minimums around 13°C (56°F) and maximums reaching 27°C (82°F), averaging 21°C (69°F). On the other hand, July experiences slightly warmer temperatures, with minimums of 15°C (60°F), maximums of 29°C (84°F), and an average of 22°C (72°F). However, July is also characterized by higher precipitation, with a substantial 407 mm (16.0 in) falling over 28 days, compared to September's 275 mm (10.8 in) over 21 days of rain. Additionally, September's humidity is higher at 82%, while July maintains a lower level of 72%. For more detailed insights into July's weather, you can visit Shimla weather in July.
In September, the weather experiences a notable shift compared to August. The average temperature in September is slightly lower, with a minimum of 13°C (56°F) and a maximum of 27°C (82°F), while August maintains a warmer range, featuring a minimum of 17°C (62°F) and a maximum of 28°C (83°F). Additionally, September sees a decrease in total precipitation, with 275 mm (10.8 in) over 21 days, compared to August's heavier rainfall of 357 mm (14.1 in) spread over 29 days. Humidity levels also drop slightly in September to 82%, as opposed to August's higher humidity of 87%. For a detailed look at the trends, you can check Shimla weather in August.
September and October showcase a notable shift in weather patterns. In September, temperatures range from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), with an average of 21°C (69°F). Additionally, this month tends to be quite rainy, registering 275 mm (10.8 in) of precipitation over 21 days, alongside a high humidity level of 82%. In contrast, October experiences cooler temperatures, with a minimum of 7°C (44°F) and an average of 17°C (62°F). The maximum temperature remains similar at 27°C (81°F), but precipitation drops significantly to just 38 mm (1.5 in) over only 7 days, resulting in lower humidity at 78%. For more detailed insights about October weather specifically, you can refer to Shimla weather in October.
In September, the weather is comparatively warmer, with average temperatures around 21°C (69°F) and highs reaching up to 27°C (82°F). However, this month also brings significant rainfall, typically around 275 mm (10.8 in) over 21 days, resulting in a high humidity level of 82%. In contrast, November experiences much cooler temperatures, with an average of 11°C (53°F) and a maximum of 22°C (71°F), but minimal precipitation of only 40 mm (1.6 in) over just 6 days, leading to a lower humidity level of 74%. For more detailed insights on November weather, you can check Shimla weather in November.
September and December present starkly contrasting weather patterns. In September, temperatures range from a mild 13°C (56°F) at night to a warm 27°C (82°F) during the day, with an average of 21°C (69°F). This month also sees significant rainfall, with about 275 mm (10.8 in) of precipitation over 21 days, resulting in a high humidity level of 82%. In contrast, December experiences much colder temperatures, with a minimum of -3°C (27°F) and a maximum of 20°C (68°F), averaging only 8°C (46°F). The precipitation drops dramatically to just 37 mm (1.4 in) over 5 days, and humidity reduces to 69%. For more detailed information on December weather, check out Shimla weather in December.
As September rolls into Shimla, the landscape transforms under a gentle embrace of moderate temperatures and a palpable sense of humidity. Unlike the scorching summers, the average temperature hovers around a pleasant 21°C (69°F), while the peaks can reach up to 27°C (82°F), offering a refreshing reprieve. However, this month also ushers in the monsoon's lingering presence, with heavy precipitation spread across 21 days, contributing to the lush, green surroundings. Humidity levels soar to 82%, creating an enchanting atmosphere that sets September apart from the drier summer months. To explore more about how Shimla’s weather varies throughout the year, visit Shimla Climate.