Last updated: August 21, 2025
In September, Cochin experiences a tropical climate characterized by a maximum temperature peaking at 29°C (84°F) and an average temperature of 26°C (79°F), ensuring warm days and mild nights. The weather is notably humid, with an average humidity level of 85%, creating a steamy atmosphere. Rainfall is a significant feature of this month, as Cochin receives a substantial total of 287 mm (11.3 in) of precipitation across approximately 27 rainy days, making it one of the wettest periods of the year. This combination of warmth and frequent showers contributes to the lush, vibrant landscape that the region is known for.
In September, Cochin, India experiences a slight warming trend as the rainy season begins to taper off. With minimum temperatures around 24°C (75°F) and maximums reaching 29°C (84°F), the weather offers a comfortable average of 26°C (79°F). This month marks a transition from the cooler, rain-laden days of July and August, with humidity levels gradually dropping, allowing for a more pleasant atmosphere. As the landscape turns lush from the monsoon rains, visitors can enjoy the vibrant beauty of Cochin while reveling in the gentle warmth that September brings—making it an ideal time for exploration and homage to this captivating coastal city.
September in Cochin sees a significant dip in precipitation compared to the preceding monsoon months, with 287 mm (11.3 inches) of rainfall recorded over 27 days. As the lush greenery from the heavy rains of June, July, and August begins to recede, this month's rainfall signals the transition towards a calmer post-monsoon period. While still substantial, September's precipitation is a sharp contrast to the peak rains of May and June, indicating a gradual shift in weather patterns. This interplay between robust early monsoon rains and the tapering onset of the dry season sets the stage for a vibrant autumn in Cochin, where the lingering moisture supports the region's rich biodiversity.
In September, Cochin, India, experiences a high humidity level of 85%, slightly lower than the peak months of July and August, which see humidity levels of 86% and 87%, respectively. This annual pattern signifies a transitional phase as the monsoon season begins to fade, leading to a gradual decrease in moisture. Notably, from the beginning of the year, humidity has risen significantly from 70% in January, peaking in the summer months before the gradual decline begins in October. The consistent high humidity throughout the year, especially in the middle months, underscores Cochin’s tropical climate, creating a lush environment but also making September a time for lingering dampness in the air.
In September, Cochin, India experiences a UV Index of 14, placing it in the extreme exposure category, with a burn time of just 10 minutes. This peak in the UV Index reflects a notable trend observed throughout the mid-year months, as the intensity remains consistently high from April to September. Comparatively, while the summer months showed similar values, September ties with April for the highest UV rating of the year. As the season shifts, it’s essential for residents and visitors to take precautions against the sun's rays during this period. For those planning outdoor activities, staying informed is crucial—check out more insights on UV levels here.
UV Risk Categories
As September arrives in Cochin, India, the vibrant energy of the city is accompanied by 272 hours of sunshine, a welcome increase from the previous months. While the rainy season in June and July typically leads to lower sunlight hours, a noticeable rebound begins in August and continues into September. This trend highlights the gradual shift toward drier conditions, with September positioning itself as a transitional month in the annual cycle. As days lengthen and the humidity eases, locals and visitors alike can revel in the warm golden rays, making it an ideal time to explore Cochin’s scenic beauty and rich cultural heritage. The upswing in sunshine not only brightens the days but also heralds the approach of the more favorable months ahead, where sunlight becomes a constant companion in the charming coastal city.
In Cochin, India, the likelihood of basking in sunny weather takes a notable dip during September, with only a 15% chance of sunshine. This trend aligns with the preceding months of July and August, where the rainy season deeply influences the climate, resulting in even lower probabilities of clear skies. As summer transitions into autumn, the notably bleak weather gradually eases, leading to a slightly brighter October while promising a return to sunnier conditions come February and December. Overall, September's weather serves as a reminder of the region's monsoon-driven patterns, suggesting that those seeking sunshine will need to be patient as they navigate the typically overcast skies.
In September, Cochin enjoys 12 hours of daylight, continuing a trend established since March. This consistent duration reflects the region's relatively stable climate, providing an ample window for outdoor activities and exploration. Following the vibrant monsoon months of July and August, which also offer 12 hours of daylight, September maintains this balance before the daylight begins to wane in October. As the year transitions, Cochin's daylight metrics demonstrate a fascinating rhythm, with a notable peak during the mid-year and a gradual descent as the seasons change.
As September unfolds in Cochin, India, the wind begins to pick up, creating a refreshing atmosphere that contrasts with the warm, humid days of summer. With an average wind speed of 3.6 m/s (8 mph), September marks a subtle peak following the previous month’s breezy 3.5 m/s. This gentle increase not only signals the tail end of the monsoon season but also heralds the arrival of more favorable weather conditions. The winds, which have gradually strengthened since the calmer days of January, carry the promise of seasonal change, perfectly complementing the lush landscapes and vibrant culture of Cochin. As the month progresses, the consistent breezes provide a delightful backdrop to both bustling city life and tranquil moments by the waterfront.
Weather in Cochin varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Cochin, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January present distinct weather contrasts. In September, the temperatures range from a minimum of 24°C (75°F) to a maximum of 29°C (84°F), with an average of 26°C (79°F). This month is characterized by high humidity (85%) and significant rainfall, receiving a total of 287 mm (11.3 in) over 27 days. Conversely, January features slightly cooler temperatures, with a minimum of 22°C (73°F) and a maximum of 30°C (87°F), averaging 27°C (80°F). The precipitation drops substantially to 32 mm (1.2 in) across just 7 days, and humidity decreases to 70%. This makes January a much drier and more comfortable month compared to the wet and humid conditions of September. For more details, check Cochin weather in January.
September and February present distinct weather contrasts in terms of temperature, precipitation, and humidity. In September, the weather remains warm with minimum temperatures around 24°C (75°F) and an average of 26°C (79°F), peaking at 29°C (84°F). However, this month is characterized by heavy rainfall, receiving about 287 mm (11.3 inches) over 27 days, accompanied by high humidity levels of 85%. In contrast, February offers slightly cooler temperatures, with a minimum of 23°C (74°F) and an average of 27°C (81°F), reaching a maximum of 31°C (88°F). Importantly, precipitation dramatically decreases to just 18 mm (0.7 inches) over 6 days, and humidity levels drop to a more comfortable 64%. For more detailed insights on February weather in Cochin, you can refer to Cochin weather in February.
September and March present contrasting weather patterns. In September, temperatures range from a minimum of 24°C (75°F) to a maximum of 29°C (84°F), with an average of 26°C (79°F). This month sees significant rainfall, with 287 mm (11.3 in) of precipitation spread over 27 days and high humidity levels at 85%. In comparison, March is warmer, with temperatures ranging from a minimum of 25°C (77°F) to a maximum of 32°C (89°F) and an average of 28°C (83°F). Additionally, March experiences much less rain, totaling only 86 mm (3.4 in) over 17 days, along with a considerably lower humidity level of 66%. For more detailed weather information, you can check Cochin weather in March.
September and April present distinct weather patterns, each with its own characteristics. September boasts slightly milder temperatures, with averages around 26°C (79°F) and a maximum of 29°C (84°F), while April is warmer, featuring an average of 28°C (83°F) and reaching highs of 31°C (89°F). However, September is marked by significantly higher precipitation, totaling 287 mm (11.3 in) over 27 days, compared to April’s 174 mm (6.8 in) during the same number of days. Additionally, the humidity is substantially higher in September at 85%, while it drops to a more comfortable 71% in April. For more details on weather specifics in April, you can visit Cochin weather in April.
In comparing the weather of September and May, both months exhibit warm temperatures, but May tends to be slightly warmer overall. September sees a minimum temperature of 24°C (75°F) and averages around 26°C (79°F), while May starts higher with a minimum of 25°C (77°F) and an average of 28°C (82°F). The maximum temperatures also reflect this trend, with September reaching up to 29°C (84°F) compared to May's peak of 31°C (88°F). However, May experiences more precipitation at 398 mm (15.7 in) over 30 days, while September records 287 mm (11.3 in) over 27 days. Interestingly, despite the higher rainfall in May, its humidity level is lower at 77%, compared to a higher 85% in September. For more detailed information about weather conditions in May, check Cochin weather in May.
In comparing the weather between September and June, both months feature similar temperature ranges, with minimum temperatures around 24°C (75°F), average temperatures near 26°C (79°F), and maximum temperatures reaching up to 29°C (84°F). However, June experiences significantly higher precipitation, with 527 mm (20.7 in) over 30 days compared to September’s 287 mm (11.3 in) over 27 days. Additionally, while humidity levels are quite close—85% in September and 83% in June—the persistent rain in June makes it feel more damp. For more detailed insights on June weather, you can refer to Cochin weather in June.
When comparing the weather in September and July, both months exhibit similar temperature ranges, with minimums around 24°C (75°F) and average temperatures of 26°C (79°F). However, July tends to be wetter, receiving 466 mm (18.4 in) of precipitation over 30 days, while September sees slightly less rainfall at 287 mm (11.3 in) over 27 days. Humidity levels remain high in both months, with July at 86% and September at 85%. For a detailed look at July's conditions, you can check out Cochin weather in July.
In comparing the weather between August and September, we see that September maintains a consistent warmth with a minimum temperature of 24°C (75°F) and an average of 26°C (79°F), slightly above August's minimum of 23°C (74°F). While both months have similar average temperatures, September experiences marginally higher maximum temperatures, peaking at 29°C (84°F) compared to 28°C (82°F) in August. However, September also brings a notable decrease in precipitation, with 287 mm (11.3 in) over 27 days versus August’s more substantial 515 mm (20.3 in) over 29 days. Humidity levels are slightly lower in September at 85%, compared to 87% in August, making September feel a bit more comfortable despite the persistent warmth. For a more detailed look at August's conditions, you can check Cochin weather in August.
September and October showcase similar average temperatures, with both months ranging around 26°C (79°F). However, October experiences slightly higher maximum temperatures, reaching up to 31°C (87°F), compared to September's peak of 29°C (84°F). Precipitation also increases in October, totaling 344 mm (13.5 in) over 27 days, which is higher than September's 287 mm (11.3 in), although both months are characterized by high humidity levels—85% in September and 84% in October. For a more detailed look at October weather in Cochin, visit Cochin weather in October.
In September, the weather tends to be warm with average temperatures ranging from a minimum of 24°C (75°F) to a maximum of 29°C (84°F). The month is characterized by high precipitation, totaling 287 mm (11.3 in) over 27 days, and humidity levels reaching around 85%. In contrast, November offers slightly warmer conditions, with average highs of 31°C (88°F) and averages around 27°C (81°F). Precipitation decreases to 216 mm (8.5 in) spread over 22 days, resulting in marginally lower humidity at 83%. For more details, check the Cochin weather in November.
In September, the weather is typically warm and humid, with temperatures ranging from a minimum of 24°C (75°F) to a maximum of 29°C (84°F) and an average of 26°C (79°F). This month also experiences considerable precipitation, totaling 287 mm (11.3 in) over approximately 27 days, resulting in a humidity level of around 85%. In contrast, December offers slightly warmer temperatures, with an average of 27°C (81°F) and a maximum of 31°C (88°F). However, it sees significantly less rainfall, with only 59 mm (2.3 in) recorded over about 10 days, and a lower humidity level of 80%. For more detailed information about December weather, you can check Cochin weather in December.
As September unfolds in Cochin, the weather marks a distinct shift compared to the preceding months. With temperatures hovering around a comfortable average of 26°C (79°F), the region experiences a notable increase in humidity at 85%, creating a lush, vibrant atmosphere. Rainfall becomes a defining characteristic, with 287 mm (11.3 in) of precipitation spread across 27 days, fostering the rich greenery the area is known for. This month often wraps Cochin in a blanket of refreshing rain, in stark contrast to the drier spells of summer, making it an ideal time for nature lovers to appreciate the city’s tropical charm. For those interested in understanding the broader trends of Cochin's weather, Cochin Climate offers deeper insights.