Last updated: August 21, 2025
In September, Alappuzha, India, experiences a warm and humid climate, with average temperatures hovering around 26°C (80°F). Daily highs can reach up to 28°C (83°F), while nighttime lows dip to a comfortable 24°C (76°F). This month is characterized by significant rainfall, accumulating to an impressive 242 mm (9.5 inches), spread across 27 days of precipitation. The high humidity levels, averaging a sultry 85%, contribute to the lush greenery and vibrant landscapes for which Alappuzha is renowned, making it an enchanting destination amid the monsoon season.
In September, Alappuzha experiences a gentle transition in temperatures as the monsoon season lingers. With minimums around 24°C (76°F) and maximums peaking at 28°C (83°F), the weather remains comfortably warm and slightly humid. The average temperature hovers at a pleasant 26°C (80°F), creating an inviting atmosphere for visitors to explore the lush landscapes and backwaters. This month's temperatures show a subtle dip from the hotter, drier months of April to August, marking the tail-end of the monsoon and hinting at the relatively cooler months ahead. September in Alappuzha, therefore, presents a perfect blend of warmth and refreshing breezes, ideal for both adventure and relaxation.
In September, Alappuzha experiences a significant downpour, accumulating 242 mm (9.5 in) of rain over 27 days. This month marks a noticeable decline in rainfall compared to the preceding monsoon months of July and August, where Alappuzha saw higher totals of 340 mm (13.4 in) and 395 mm (15.5 in), respectively. Yet, September remains one of the wetter months, indicating that while the monsoon's intensity starts to wane, it still brings substantial precipitation, contributing to the region’s lush landscapes. As the year transitions, the rainfall pattern hints at the gradual shift from the peak monsoon season, setting the stage for the less intense showers that follow in October and beyond.
In September, Alappuzha experiences a notable drop in humidity compared to the peak levels of the preceding months, settling at a humid 85%. This month marks the tail end of a particularly wet season, where humidity levels have soared from 70% in January to a staggering 87% in August. As the monsoon begins to retreat, September’s humidity remains high but hints at a gradual transition towards more tolerable conditions in the coming months. Notably, the gradual decline from July’s peak reflects the natural ebb and flow of Alappuzha's tropical climate, as it prepares to shift into the drier months of October and November, where humidity levels begin to stabilize around the mid-80s.
As September rolls into Alappuzha, the UV Index peaks at 14, marking a return to the extreme exposure category. During this month, the burn time shortens to just 10 minutes, consistent with the high UV levels experienced throughout the summer months. This trend of elevated UV Index values—particularly from February through September—indicates that residents and visitors alike should take precautions to protect their skin from harmful rays. With the intensity just slightly higher than August’s value of 13, it’s a stark reminder of the importance of sun safety as the monsoon season wanes. For more detailed insights, you can explore further at Alappuzha UV Index.
UV Risk Categories
September in Alappuzha, India, boasts a pleasant 280 hours of sunshine, making it a delightful time for outdoor activities and exploration. This month follows a gradual decline in sunlight from the summer peak of 336 hours in March and remains higher than the preceding months of July and August, which see only 268 and 247 hours, respectively. As the monsoon season tapers, September offers a perfect balance, heralding the onset of the post-monsoon charm that Alappuzha is known for. The transition from the heavy rains of mid-year is palpable, inviting both locals and tourists to enjoy the shimmering backwaters and lush landscapes bathed in soft sunlight.
In Alappuzha, India, September sees a marked shift towards cloudier and wetter conditions, with a mere 16% chance of sunny weather. This trend follows the peak of the monsoon season, where the likelihood of sun is significantly diminished, especially when compared to the earlier months of the year. For instance, February and March enjoy far more promise with sunny probabilities soaring to 67% and 61%, respectively. As the year progresses into the dryer months, the sun reemerges, boasting a notable 67% chance in December. Overall, September stands out as a transitional month, highlighting the region’s distinct monsoon pattern and setting the stage for the more sunlit days that follow.
As summer gracefully transitions into fall in Alappuzha, India, the daylight duration remains consistent at 12 hours throughout September. This steady pattern reflects a remarkable stability in the region’s climate, with daylight peaking during the months of March through August, before gradually tapering off to 11 hours in October. The persistent 12 hours of daylight in September allows for extended evenings, perfect for enjoying the natural beauty of Alappuzha, while also setting the stage for the shorter days that follow as winter approaches.
As September unfolds in Alappuzha, the breeze continues to dance through the palms, maintaining a pleasant average wind speed of 4.5 m/s (10 mph)—a gentle reminder of the region's rhythmic climatic patterns. This month mirrors the calm yet invigorating winds of August, showcasing a trend of increasing breezes as the monsoon season transitions. Since the onset of June, when winds picked up to 4.4 m/s (10 mph), the months leading into autumn have consistently delivered refreshing gusts. While the winds begin to slow in October, dropping to 3.0 m/s (7 mph), September stands out as a moment of balance, inviting locals and visitors alike to embrace the soothing ambiance of this coastal gem.
Weather in Alappuzha varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Alappuzha, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January showcase distinct weather patterns. In September, the climate is characterized by warmer temperatures, with minimums around 24°C (76°F) and maximums reaching up to 28°C (83°F). The month is marked by significant rainfall, averaging 242 mm (9.5 in) over 27 days and high humidity at 85%. In contrast, January offers slightly cooler air with temperatures ranging from 23°C (74°F) to a maximum of 29°C (85°F), and much less precipitation, averaging only 41 mm (1.6 in) over just 9 days, accompanied by lower humidity levels at 70%. For more details on the weather, you can visit Alappuzha weather in January.
In September, the weather is marked by a warm and humid climate, with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 28°C (83°F) and an average of 26°C (80°F). This month also experiences significant rainfall, totaling 242 mm (9.5 in) over 27 days, resulting in a humidity level of 85%. In contrast, February offers slightly warmer conditions, with temperatures varying from 24°C (76°F) to a maximum of 30°C (87°F) and an average of 27°C (81°F). The precipitation drops dramatically to just 30 mm (1.2 in) over 10 days, coupled with lower humidity at 64%. For a detailed look at weather patterns during this month, check out Alappuzha weather in February.
In September, the weather tends to be warmer with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 28°C (83°F). The month is also characterized by high humidity at 85% and significant rainfall, totaling 242 mm (9.5 in) over 27 days. In contrast, March boasts slightly higher temperatures, with a minimum of 25°C (78°F) and a maximum reaching 30°C (87°F). The humidity levels drop to 66%, and the precipitation is considerably less, measuring 82 mm (3.2 in) over 20 days. For more detailed information, you can visit Alappuzha weather in March.
In September, the weather is characterized by slightly lower temperatures, with a minimum of 24°C (76°F) and an average of 26°C (80°F), peaking at a maximum of 28°C (83°F). This month experiences significant rainfall, totaling 242 mm (9.5 in) over 27 days, coupled with high humidity levels averaging around 85%. In contrast, April tends to be warmer, with a minimum of 25°C (77°F), an average of 28°C (83°F), and a maximum reaching up to 31°C (88°F). Rainfall is also less frequent in April, totaling 146 mm (5.8 in) over 26 days, but with lower humidity at 71%. For more detailed information about April weather in Alappuzha, you can visit Alappuzha weather in April.
In comparing the weather of September and May, we notice some significant differences. September brings slightly cooler temperatures, with averages between 24°C (76°F) and 28°C (83°F), while May tends to be warmer, with temperatures ranging from 25°C (78°F) to a maximum of 31°C (87°F). Precipitation is notably higher in May, totaling 369 mm (14.5 in) over 29 days compared to September's 242 mm (9.5 in) over 27 days. Additionally, humidity levels in September are higher at 85%, while May's humidity is around 77%. This combination of warmer temperatures and significant rainfall makes May quite distinct in terms of weather patterns. For more specific details, you can visit Alappuzha weather in May.
In comparing the weather between September and June, both months exhibit warm temperatures with minimal differences in averages. September experiences a slight dip with temperatures ranging from a minimum of 24°C (76°F) to a maximum of 28°C (83°F), while June is slightly warmer, with a minimum of 25°C (77°F) and a maximum of 29°C (85°F). However, June is significantly wetter, receiving 428 mm (16.8 in) of rainfall over 29 days, compared to September's 242 mm (9.5 in) over 27 days. Humidity levels are quite similar, with September at 85% and June at 83%. For a more detailed overview, you can check out Alappuzha weather in June.
In comparing the weather of September and July, we observe that both months experience similar temperature ranges, with minimums around 24-25°C and maximums peaking at 28°C. The average temperature remains consistent at approximately 26°C for both months. However, September tends to be slightly less rainy than July, receiving about 242 mm of precipitation over 27 days compared to July's 340 mm over 30 days. Additionally, while humidity levels are comparable, with September at 85% and July at 86%, July's prolonged rainy days contribute to a more saturated atmosphere. For a closer look at July's weather specifics, you can visit Alappuzha weather in July.
In comparing the weather patterns of September and August, we see a slight decrease in both precipitation and humidity during September. While both months share similar temperature ranges, with September reporting a minimum of 24°C (76°F) and a maximum of 28°C (83°F), August also has the same temperatures but slightly warmer averages. September experiences 242 mm (9.5 in) of rainfall over 27 days, contrasting with August's 395 mm (15.5 in) over 29 days, indicating a drier trend as the seasons transition. The humidity also shows a minor decrease from 87% in August to 85% in September. For a more detailed look at August weather, visit Alappuzha weather in August.
September and October both experience warm temperatures, but October sees a slight increase with minimums of 25°C (76°F) and maximums of 29°C (85°F) compared to September's 24°C (76°F) and 28°C (83°F). Despite these warmer averages, October also brings more rainfall, with precipitation rising from 242 mm (9.5 in) in September to 286 mm (11.3 in) in October, occurring over an additional day. Humidity levels remain similar, with September at 85% and October at 84%. For more detailed information on the weather in October, visit Alappuzha weather in October.
In comparing September and November weather, September tends to be slightly cooler with average temperatures ranging from a minimum of 24°C (76°F) to a maximum of 28°C (83°F). This month also experiences higher precipitation, totaling 242 mm (9.5 in) over 27 days and an humidity level of 85%. In contrast, November sees a rise in average temperatures, reaching up to 30°C (86°F), while experiencing lower precipitation at 208 mm (8.2 in) over 23 days and a humidity of 83%. For more detailed information, you can check Alappuzha weather in November.
September and December present a contrasting climate experience. In September, temperatures range from a minimum of 24°C (76°F) to a maximum of 28°C (83°F), with an average of 26°C (80°F). The month is characterized by high humidity at 85% and significant precipitation, totaling 242 mm (9.5 in) over 27 days. In contrast, December sees slightly warmer temperatures, with a minimum of 25°C (76°F) and a maximum of 29°C (85°F), averaging around 27°C (81°F). The humidity drops to 80%, and the rainfall significantly decreases to 72 mm (2.8 in) over just 12 days, making December a much drier month. For more details on the weather conditions in December, you can visit Alappuzha weather in December.
As September rolls into Alappuzha, the weather shifts notably, characterized by increased precipitation and humidity. While temperatures average around a comfortable 26°C (80°F), the heightened humidity at 85% contributes to a palpable stickiness in the air, setting it apart from the drier months. With average rainfall exceeding 240 mm and nearly every day seeing a drizzle, September is ideal for those who enjoy lush landscapes and vibrant greenery. The blend of warmth and frequent rain is a stark contrast to the clearer, sunnier days of the preceding months. For more insights into the weather patterns throughout the year, explore Alappuzha Climate.