Last updated: August 31, 2025
September in Dharan, Nepal is characterized by warm temperatures and significant rainfall. With a maximum temperature reaching 34°C (94°F) and an average of 27°C (81°F), the days can be quite hot. However, the minimum temperature drops to a comfortable 21°C (70°F) during the cooler nights. This month experiences a noteworthy precipitation amount of 264 mm (10.4 in), spread over 26 days, leading to a high humidity level of 92%. The frequent rain showers contribute to the lush surroundings, making September a vibrant and dynamic month in this beautiful region.
September in Dharan, Nepal, marks a transitional phase as the monsoon recedes and the temperatures begin to cool. With minimums around 21°C (70°F) and averages peaking at 27°C (81°F), the weather is still warm but noticeably more comfortable than the preceding months. Highs can reach up to 34°C (94°F), allowing for enjoyable outdoor activities without the overwhelming heat of summer. As the month progresses, residents and visitors alike can appreciate the shift towards mild afternoons and cooler evenings, making it an ideal time to explore the vibrant culture and stunning landscapes that Dharan has to offer.
September in Dharan, Nepal, marks a transition into the tail end of the monsoon season, with precipitation totals reaching 264 mm (10.4 in) over 26 rainy days. This substantial rainfall follows a wet August, where the region experienced 402 mm (15.8 in) over 30 days, keeping the landscape lush and vibrant. However, September's precipitation is notably lower than July's peak of 535 mm (21.1 in), indicating a gradual easing of the monsoon's grip. The consistent rainfall this month supports a rich biodiversity and aids in agricultural practices, while also serving as a reminder of the persistent weather patterns that shape life in this unique region.
In Dharan, Nepal, the month of September marks a continuation of the high humidity levels seen in the peak monsoon months. The humidity consistently soars to 92%, a reflection of the lush, tropical climate that envelops the region during this time. This trend follows a significant increase starting from June, where humidity levels rise dramatically from 77% to maintain a steamy atmosphere throughout July and August. Following September, humidity begins to wane, descending to 87% in October, but it remains notably high compared to earlier months. Overall, the data illustrates a clear seasonal rhythm, with the summer months bringing intense moisture, ultimately leading to the vibrant landscapes characteristic of this picturesque part of Nepal.
As summer fades, September in Dharan, Nepal, continues to experience high solar intensity with a UV Index of 12, categorized as extreme. This means that sun exposure can lead to skin burns in just 10 minutes, underscoring the importance of sun protection during this time. Interestingly, the UV Index has slightly decreased from the peak levels seen in July and August, which boasted indices of 14 and 13, respectively. Despite this decline, caution remains essential as the sun's rays are still potent. As the year progresses, we will see a gradual transition to lower indices, with October bringing a drop to 9. For in-depth information, check out the detailed Dharan UV Index.
UV Risk Categories
September in Dharan, Nepal, showcases a remarkable balance of sunshine, offering 272 hours of radiant light. This month, while slightly less illuminated than the peak brightness of May with 342 hours, still presents a pleasant transition into autumn. Following the rainy months of July and August, which recorded 239 and 260 hours respectively, September marks a resurgence in daylight, hinting at the seasonal shift that promises more consistent sunshine ahead. As the year progresses, the trend indicates an upswing in hours of sunlight from the summer lows, paving the way for October's 313 hours, making September a delightful precursor to the luminous days that follow.
Dharan, Nepal, experiences a diverse range of weather throughout the year, revealing interesting trends in the likelihood of sunny days. Starting strong in the early months, January boasts a 70% chance of sunshine, peaking in February at an impressive 83%. As the seasons transition, sunshine gradually dissipates, with May plunging to 34%, and then plummeting to an annual low in July at just 7%. August continues this trend with a mere 4%, marking the rainy season's peak. However, September sees a slight uptick in sunny weather, returning to 27%—a modest improvement that hints at the approaching post-monsoon season. By October, the chances bounce back to 61%, showcasing a lively recovery as the landscape begins to clear and sunlit days are anticipated once again.
In Dharan, Nepal, the transition into September marks a subtle shift in daylight, as the duration decreases to 12 hours. Following the peak of summer, which boasts a consistent 13-hour span of daylight from May through August, September begins the gradual descent into shorter days. This month serves as a bridge between the abundance of light seen in summer and the dwindling hours of fall. As daylight fades, the rhythms of nature slowly adjust, inviting a reflective pause before the daylight diminishes further in October to 11 hours and returns to 10 hours by November. Thus, September encapsulates a transitional phase, highlighting the cyclical ebb and flow of sunlight that characterizes the seasons in this vibrant region.
In Dharan, Nepal, the winds in September blow gently at an average speed of 1.6 m/s (3 mph), marking a slight uptick from the summer months. This mild breeze is reflective of the overall trend throughout the year, where the wind speeds gradually rise to a peak in April before tapering off into the late year. After September, the winds are set to decline again, reaching 1.3 m/s by November. This subtle dance of wind speeds creates a serene atmosphere in September, making it an ideal time for outdoor activities while still enjoying the lingering warmth of the season.
Weather in Dharan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Dharan, focusing on differences in temperature, rainfall, humidity, and UV levels.
In September, the weather is characterized by warm temperatures, with a minimum of 21°C (70°F) and an average high of 34°C (94°F). It is also notably humid, with a remarkable 92% humidity level and significant rainfall, totaling 264 mm (10.4 in) over 26 days. In stark contrast, January experiences much cooler temperatures, with a minimum of 5°C (41°F) and an average maximum of 27°C (81°F). Precipitation in January is minimal, averaging just 7 mm (0.3 in) over 2 days, and the humidity drops to a more comfortable 58%. For detailed information about January weather, you can visit Dharan weather in January.
September and February present stark contrasts in weather conditions. In September, temperatures range from a warm minimum of 21°C (70°F) to a scorching maximum of 34°C (94°F), with an average of 27°C (81°F). This month is also characterized by heavy rainfall, with a total precipitation of 264 mm (10.4 in) spread over 26 days, resulting in high humidity levels of 92%. In contrast, February offers a much cooler climate, with temperatures ranging from a chilly minimum of 5°C (41°F) to a comfortable maximum of 28°C (83°F) and an average of 17°C (63°F). Additionally, February experiences significantly less rainfall, with only 15 mm (0.6 in) over just 2 days, leading to a notable decrease in humidity at 53%. For more specific details about weather patterns in February, you can check Dharan weather in February.
The weather in September is characterized by high humidity and frequent rainfall, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 34°C (94°F). With an average temperature of 27°C (81°F) and precipitation occurring on 26 days, September often feels steamy and wet. In contrast, March offers much drier conditions, with significantly lower humidity at 32% and minimal rainfall of just 25 mm (1.0 in) over 5 days. The temperature range in March starts at a cooler minimum of 7°C (46°F) and averages 22°C (72°F), while still reaching up to 34°C (94°F) on warmer days. For a more detailed look at March weather in Dharan, you can explore Dharan weather in March.
When comparing the weather in September and April, a stark contrast is evident. September typically sees higher temperatures, with an average of 27°C (81°F), while April's average is slightly cooler at 25°C (77°F). Additionally, September is marked by significantly higher humidity levels at 92%, creating a muggy atmosphere, whereas April enjoys a much drier climate with only 25% humidity. Precipitation is also a major factor; September experiences frequent rainfall over 26 days with a total of 264 mm (10.4 in), whereas April has a much lighter rainfall, accumulating only 78 mm (3.1 in) over just 12 days. For a closer look at the specifics of April weather, you can check Dharan weather in April.
When comparing the weather in September and May, we see distinct differences in temperature, precipitation, and humidity. September typically experiences higher humidity at 92% and sees a wider range of temperatures, with a minimum of 21°C (70°F) and a maximum of 34°C (94°F). It also receives considerable rainfall, with 264 mm (10.4 in) over 26 days. In contrast, May offers slightly lower temperatures, ranging from a minimum of 18°C (65°F) to a maximum of 35°C (96°F), but with significantly less rain at 142 mm (5.6 in) across 21 days and a much drier humidity level of 46%. For an in-depth look at the weather conditions in May, you can visit Dharan weather in May.
In comparing the weather of September and June, it’s clear that both months experience warm temperatures, with June slightly edging out September in terms of average daily warmth. June has a minimum temperature of 22°C (72°F) and an average of 28°C (82°F), peaking at 36°C (97°F), whereas September starts with a minimum of 21°C (70°F), averaging 27°C (81°F), and a maximum of 34°C (94°F). However, September sees a higher level of humidity at 92%, compared to June's 77%. Additionally, both months are marked by significant rainfall, with September receiving 264 mm (10.4 in) over 26 days and June experiencing even more precipitation at 311 mm (12.2 in) over 27 days. For a more detailed look at the weather in June, you can check Dharan weather in June.
In comparing the weather between July and September, both months exhibit warm temperatures, with average highs around 27°C (81°F). July tends to be slightly warmer, with maximum temperatures reaching 35°C (95°F) compared to September’s 34°C (94°F). However, July experiences significantly higher precipitation, with 535 mm (21.1 in) of rain over 29 days, while September sees 264 mm (10.4 in) over 26 days. Interestingly, both months share the same high humidity level of 92%. For a more detailed look at July's weather patterns, you can visit Dharan weather in July.
In comparing the weather between August and September, we see that both months experience high humidity levels of 92%, creating a notably muggy atmosphere. August tends to be slightly warmer, with average temperatures reaching 28°C (82°F) and maximums hitting 35°C (96°F), compared to September's average of 27°C (81°F) and a maximum of 34°C (94°F). However, September experiences a significant decrease in precipitation, recording 264 mm (10.4 in) over 26 days, compared to August's heavier rainfall of 402 mm (15.8 in) over 30 days. For a detailed look at the weather conditions in August, you can check Dharan weather in August.
September and October exhibit notable differences in weather patterns. September boasts warmer temperatures with a minimum of 21°C (70°F) and an average high reaching 34°C (94°F). However, it is also characterized by high humidity at 92% and significant precipitation, recording 264 mm (10.4 in) over 26 days. In contrast, October experiences cooler temperatures, with a minimum dropping to 14°C (58°F) and an average high of 34°C (93°F), but provides a much drier climate with only 83 mm (3.3 in) of rain over 12 days and slightly lower humidity at 87%. For more detailed insights on October weather, you can visit Dharan weather in October.
September and November present distinct shifts in weather conditions. In September, temperatures range from a minimum of 21°C (70°F) to a maximum of 34°C (94°F), with an average of 27°C (81°F). The month is marked by high humidity at 92% and significant rainfall, totaling 264 mm (10.4 in) over 26 days, making it a wet and muggy time. In contrast, November offers a cooler climate, with a minimum temperature of 9°C (49°F) and an average of 20°C (68°F), peaking at 33°C (91°F) during the warmer days. Notably, November experiences virtually no precipitation—just 1 mm (0.0 in)—and humidity drops to a comfortable 76%. For more details on the weather specific to November in Dharan, visit Dharan weather in November.
In September, the weather is notably warm and humid, with average temperatures around 27°C (81°F) and highs reaching up to 34°C (94°F). The month is characterized by significant precipitation, accumulating 264 mm (10.4 in) over 26 days, leading to a high humidity level of 92%. In contrast, December brings a much cooler climate, with average temperatures dropping to 16°C (61°F) and minimums as low as 5°C (41°F). The precipitation is minimal at just 7 mm (0.3 in) over the month, and there are no rainy days, resulting in a lower humidity level of 71%. For more specific insights on weather conditions during December, you can check Dharan weather in December.
As September rolls into Dharan, the weather showcases a significant shift characterized by higher humidity levels and frequent rain. With an average temperature that remains comfortable yet slightly warmer than the preceding months, this transitions the landscape into a lush spectacle. The notable increase in precipitation marks September as one of the wettest months, with rain gracing the area on 26 days. This month stands out by enveloping Dharan in a vibrant ambiance, offering a unique experience distinct from the drier months before it. For more insights into the varying climatic conditions throughout the year, explore Dharan Climate.