Last updated: August 31, 2025
September in Janakpur, Nepal presents a vibrant clash of warm temperatures and substantial rainfall. With a maximum reaching up to 36°C (98°F) and an average of 29°C (84°F), the weather is notably warm, but the minimum dips to a comfortable 22°C (73°F) at night. This month brings considerable precipitation, totaling 236 mm (9.3 in) across 23 days, making the atmosphere feel particularly humid with levels soaring around 92%. Residents and visitors alike should prepare for a mix of heat and refreshing showers, embodying the dynamic essence of Janakpur's September climate.
In September, Janakpur experiences a notable shift as the temperatures start to cool slightly from the summer heat. With a minimum temperature of 22°C (73°F) and an average of 29°C (84°F), the climate remains warm yet more comfortable, making it ideal for outdoor activities. The maximum temperature dips to 36°C (98°F), marking a transition towards the milder autumn months. This gradual decline in heat, combined with the end of the monsoon season, creates a pleasant atmosphere that invites both locals and visitors to enjoy the vibrant surroundings of the city. Overall, September serves as a refreshing bridge from the intense summer towards the cooler days that follow.
In September, Janakpur experiences a significant drop in rainfall from the heavy downpours of the preceding months, yet it still receives a substantial 236 mm (9.3 in) of precipitation over 23 days. This month marks a transition from the peak monsoon season, where July and August see their highest totals of 458 mm (18.0 in) and 287 mm (11.3 in), respectively. Despite the decrease, September's rainfall supports the lush landscape of the region, setting the stage for the drier months ahead. As the year progresses towards October, the precipitation diminishes to 75 mm (2.9 in), heralding the arrival of a drier climate that will persist into the winter months.
In Janakpur, Nepal, September marks the pinnacle of humidity, with levels soaring to an impressive 92%. This intense moisture is part of a broader seasonal pattern, as the region experiences a steady increase in humidity from March's arid 32% to the lush 77% in June, driven by the monsoon season. July and August also hold on to this high humidity, reinforcing the tropical environment that characterizes the region during these months. Following September, humidity begins its gentle decline, yet remains significantly elevated at 87% in October, before gradually tapering off through the winter months. This trend highlights the dramatic shift from the dry winter air to the sultry, moisture-laden atmosphere that envelops Janakpur during the summer and early autumn.
As the months progress in Janakpur, Nepal, the UV Index steadily rises, peaking in the summer months. January starts with a moderate UV Index of 5, allowing for a burn time of 30 minutes, but by February, it escalates to a high of 6, reducing safe exposure to 25 minutes. The trend becomes more pronounced in March and April, with indices reaching 8 and 10 respectively, both categorized as very high, where a mere 15 minutes of sun can lead to burns. The intensity continues to climb, hitting an extreme 11 in June and staying there through September, with burn times dropping to just 10 minutes during these peak months. Interestingly, as the year draws to a close, the UV Index declines to 9 in October, then to 7 in November, and returns to a moderate level of 5 in December. This data underscores the importance of sun safety as Janakpur experiences significant fluctuations in UV exposure, especially during the intense summer months. For a detailed overview, visit the Janakpur UV Index.
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In Janakpur, Nepal, September enjoys a delightful embrace of sunshine, tallying 271 hours of bright skies—just slightly above the month's average for the year. This follows the rising trend in daylight hours as the seasons transition toward the end of summer, peaking in late spring with 351 hours in May. After July's dip to 236 hours, September sees a resurgence in sunshine, leading into the more temperate autumn months. The consistent cloud cover and rain typical in the monsoons give way to increasingly sunny days, making it a serene and vibrant time to enjoy the stunning landscapes of Janakpur. As daylight begins to dwindle into the cooler months, September stands out as a perfect blend of warmth and brightness, inviting both locals and visitors to bask in its gentle glow.
In Janakpur, Nepal, September marks a significant transition in weather, with a 28% chance of sunny days. This figure reflects a noticeable dip from the vibrant summer months, where July and August experience the lowest sun exposure at just 10% and 6%, respectively. As the monsoon recedes, September offers a hint of relief, but the likelihood of sunshine remains low compared to the sunnier months at the beginning of the year, such as February and March, boasting chances of 89% and 86%. Overall, while September may not shine as brightly, it serves as a bridge towards the sunnier days of October, which rebounds to 63% sun probability.
In Janakpur, Nepal, the rhythm of daylight unfolds beautifully throughout the year, with September enjoying a generous 12 hours of sunlight. This month marks a transition from the longer days of summer, where the sun graces the sky for up to 13 hours from May through August. As autumn approaches, the daylight gradually diminishes, echoing the shifting seasons. Following September, daylight dips to 11 hours in October and stabilizes again at 10 hours by November and December. This consistent pattern reveals the region's distinct seasonal variations, celebrating the vibrant energy of longer days while gracefully welcoming the shorter ones as the year progresses.
As September arrives in Janakpur, Nepal, the gentle whispers of the wind begin to shift, marking a transition in the region's climate. With an average wind speed of 2.3 m/s (5 mph), September maintains a pleasant breeze reminiscent of the preceding summer months. The winds gradually strengthen from the calmer days of winter, which see January clocking in at only 1.7 m/s (4 mph), to the more invigorating gusts of spring. This slight uptick in wind velocity not only enhances the atmosphere but also signals the onset of autumn, as temperatures start to cool. Interestingly, September's winds are part of a broader trend; after a peak in June, speeds slightly decline but remain steadier than in the earlier winter months, showcasing the region's unique climatic rhythm.
Weather in Janakpur varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Janakpur, focusing on differences in temperature, rainfall, humidity, and UV levels.
September and January exhibit strikingly different weather patterns. In September, temperatures range from a warm minimum of 22°C (73°F) to a sweltering maximum of 36°C (98°F), with an average of 29°C (84°F). The month is characterized by high humidity of 92% and significant rainfall, totaling 236 mm (9.3 inches) over 23 days. Conversely, January experiences a much cooler climate, with temperatures dipping to a minimum of 5°C (41°F) and peaking at 29°C (84°F), averaging just 15°C (60°F). This month sees only minimal precipitation of 9 mm (0.4 in) over just one day, accompanied by significantly lower humidity at 58%. For more detailed information, you can check Janakpur weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures range from a minimum of 22°C (73°F) to a maximum of 36°C (98°F), with an average of 29°C (84°F). This month is marked by high humidity at 92% and significant rainfall, with 236 mm (9.3 in) spread over 23 days, making it quite wet and muggy. In contrast, February offers much cooler temperatures, with a minimum of 7°C (44°F), an average of 19°C (66°F), and a maximum of 32°C (90°F). The precipitation is considerably lower, only 14 mm (0.6 in) over just 2 days, and the humidity drops to a more comfortable 53%. For more detailed information on February weather, you can check Janakpur weather in February.
September and March showcase two distinct weather profiles. In September, temperatures range from a minimum of 22°C (73°F) to a maximum of 36°C (98°F), with an average of 29°C (84°F). This month is marked by high humidity at 92% and significant precipitation, totaling 236 mm (9.3 in) over 23 days, making it a notably wet season. In contrast, March experiences cooler temperatures, with a minimum of 10°C (50°F) and an average of 25°C (77°F), while still reaching highs of up to 38°C (100°F). The weather is much drier, with only 14 mm (0.6 in) of precipitation occurring over just 2 days, and humidity dropping to 32%. For more detailed insights about the weather in March, you can visit Janakpur weather in March.
In September, the weather is characterized by warm temperatures, with a minimum of 22°C (73°F) and an average of 29°C (84°F), peaking at a maximum of 36°C (98°F). However, this month experiences significant rainfall, with 236 mm (9.3 in) of precipitation over 23 days and high humidity levels of 92%. In contrast, April boasts a similarly warm average temperature of 29°C (84°F), but features a higher maximum of 41°C (106°F). Rainfall is minimal in April, with only 34 mm (1.3 in) over 8 days and a much lower humidity level of 25%. For a more detailed look at April weather, you can visit Janakpur weather in April.
When comparing the weather in September and May, several striking differences emerge. September experiences higher humidity at 92%, contributing to a more oppressive atmosphere despite a slightly lower average temperature of 29°C (84°F). Precipitation is notably heavy during this month, with 236 mm (9.3 in) falling over 23 days. In contrast, May offers a drier climate, with only 110 mm (4.3 in) of rain over 14 days and much lower humidity at 46%. However, May does see higher maximum temperatures, reaching up to 41°C (107°F), making it overall hotter. For a detailed look at the weather in May specifically, you can check out Janakpur weather in May.
In comparing the weather between September and June, we find several notable differences. September experiences slightly cooler temperatures, with a minimum of 22°C (73°F) and an average of 29°C (84°F), while June has a minimum of 24°C (75°F) and an average of 30°C (87°F). June can occasionally reach a maximum of 40°C (104°F), significantly higher than September's maximum of 36°C (98°F). Precipitation is more pronounced in September, totaling 236 mm (9.3 in) over 23 days, compared to June's 173 mm (6.8 in) over 21 days. Additionally, humidity levels are notably higher in September at 92%, compared to June’s 77%. For more detailed insights, you can refer to Janakpur weather in June.
In comparing the weather patterns of September and July, we can observe some notable differences. September experiences slightly cooler temperatures with a minimum of 22°C (73°F) and a maximum of 36°C (98°F), while July presents a warmer climate, featuring a minimum of 24°C (75°F) and a maximum of 38°C (102°F). Additionally, July sees significantly higher precipitation, with 458 mm (18.0 in) over 28 days compared to September's 236 mm (9.3 in) across 23 days. Both months share a high humidity level of 92%, but the rain in July tends to be more frequent and intense. For more detailed insights, you can refer to Janakpur weather in July.
In comparing the weather of September and August, we see some notable differences. September typically features slightly lower minimum temperatures, averaging 22°C (73°F), compared to August's 25°C (78°F). Both months maintain a similar average temperature of around 29°C (84°F), but August reaches a higher maximum at 37°C (99°F), whereas September peaks at 36°C (98°F). In terms of rainfall, September experiences 236 mm (9.3 in) over 23 days, which is less than August's 287 mm (11.3 in) spread across 28 days. Additionally, both months have high humidity levels at 92%. For further details on weather conditions in August, you can visit Janakpur weather in August.
In September, temperatures are warmer, with a minimum of 22°C (73°F) and an average of 29°C (84°F), while October sees cooler conditions with a minimum of 16°C (61°F) and an average of 27°C (80°F). Despite both months sharing a maximum temperature of 36°C (98°F), October is significantly drier, receiving only 75 mm (2.9 in) of precipitation over just 7 days compared to September's 236 mm (9.3 in) over 23 days. Additionally, humidity is slightly lower in October at 87%, down from September's 92%. For more specific details on the weather trends in October, you can check Janakpur weather in October.
September and November present stark contrasts in weather patterns. In September, temperatures range from a minimum of 22°C (73°F) to a maximum of 36°C (98°F), with an average of 29°C (84°F). This month also experiences high humidity at 92% and considerable precipitation, receiving 236 mm (9.3 in) over 23 days. In contrast, November sees much cooler temperatures ranging from a minimum of 11°C (53°F) to a maximum of 35°C (95°F), with a more comfortable average of 22°C (72°F). Notably, November is dry, recording no precipitation over the entire month and a humidity level of 76%. For more details on the weather specifics in November, you can visit Janakpur weather in November.
September and December showcase stark contrasts in weather. In September, temperatures range from a minimum of 22°C (73°F) to a sweltering maximum of 36°C (98°F), with an average of 29°C (84°F). The month is characterized by high humidity at 92% and significant rainfall of 236 mm (9.3 in) over 23 days, creating a humid and often rainy atmosphere. In contrast, December features much cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 30°C (87°F), averaging 17°C (63°F). This month experiences minimal precipitation of only 10 mm (0.4 in) and not a single rainy day, while humidity drops to a more comfortable 71%. For those interested in weather specifics, you can find detailed information here: Janakpur weather in December.
September in Janakpur brings a significant shift in weather, characterized by increased humidity and a notable rise in rainfall, setting it apart from the drier months that precede it. With an average temperature of 29°C (84°F), days are warm, yet the overcast skies and frequent showers contribute to a marked contrast in the overall climate. The high humidity levels of 92% add to the sultriness, making for a more oppressive atmosphere. This month is characterized by a substantial 236 mm of rain over 23 days, signaling the transition into the wet season. To explore the nuances of Janakpur's climate throughout the year, visit Janakpur Climate.