September Weather in Lamjung, Nepal

Last updated: August 31, 2025

In September, Lamjung, Nepal, experiences a delightful blend of mild temperatures and significant rainfall. With a maximum of 27°C (82°F) and an average temperature of 22°C (71°F), the weather remains comfortably warm, while evenings cool down to a minimum of 13°C (56°F). This month is characterized by substantial rainfall, with a total precipitation of 890 mm (35.1 in) spread across 28 days, creating lush landscapes and a vibrant atmosphere. With humidity levels averaging around 85%, September in Lamjung offers a refreshing experience for nature lovers and adventurers alike.

September Temperature in Lamjung

In September, Lamjung, Nepal experiences a gentle shift in temperature as summer transitions into autumn. The minimum temperature hovers around 13°C (56°F), providing a mild start to the month, while the average settles comfortably at 22°C (71°F). Daily highs reach up to 27°C (82°F), making September one of the more pleasant months for outdoor activities. This slight dip from the high of 29°C (84°F) observed in the preceding months reflects the gradual cooling that heralds the change of seasons. As the days grow shorter and the air becomes crisper, September offers a delightful atmosphere for exploration and appreciation of the stunning landscapes Lamjung has to offer.

September Weather in Lamjung: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lamjung, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lamjung, September typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec475157636671727271655750
Data source: Temperature data for Lamjung generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Lamjung

In September, Lamjung, Nepal, experiences a substantial amount of rainfall, recording 890 mm (35.1 in) over 28 days. This marks a noticeable decrease from the peak monsoon months of July and August, where precipitation reached an astounding 1545 mm and 1241 mm, respectively. The lingering effects of the monsoon season still keep the region lush and vibrant, yet September serves as a transition month, signaling the gradual retreat of heavy rains. The reduction in rainfall is complemented by a decrease in precipitation days, hinting at the start of clearer skies as the region moves into autumn. This shift, while still wet, offers a refreshing change, setting the stage for the more temperate conditions that follow in October.

September Precipitation Trends in Lamjung

The chart displays monthly precipitation patterns in Lamjung, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Lamjung, September typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec13821218620836974415451241890169126134
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lamjung

As September rolls in, Lamjung, Nepal, experiences a significant drop in humidity from the sweltering heights of August. Humidity levels in September hover around 85%, marking a slight decrease yet still maintaining the lingering effects of the monsoon season. This month is characterized by consistently high humidity, a trend that begins in July and peaks in August, reflecting the region's rich tropical climate. Following this humid peak, levels gradually decline into October, suggesting a transition into drier fall conditions. Such patterns highlight the seasonal shifts in Lamjung's weather, where monsoon rains profoundly influence the atmospheric moisture throughout these months.

September Average Humidity in Lamjung

This chart illustrates the average monthly humidity levels in Lamjung, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Lamjung is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec61%69%59%48%54%60%83%90%85%68%54%50%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lamjung

September in Lamjung, Nepal continues the trend of intense sunlight exposure, maintaining a high UV Index of 15, categorized as extreme. With a burn time of just 10 minutes, outdoor enthusiasts should remain vigilant, as the summer months transition into autumn without a decrease in sun intensity. This consistency highlights a critical need for sun protection, particularly during these months when the UV levels peak. Notably, the UV Index has been at 15 since May, creating a persistent demand for awareness and caution against overexposure. To learn more about UV safety and the implications for outdoor activities, visit the complete guide at Lamjung UV Index.

Maximum UV Index Levels in Lamjung for September

The chart shows the monthly maximum UV Index (UVI) for Lamjung in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Lamjung typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec79121415151515151297
Data source: Lamjung September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Lamjung

In September, Lamjung, Nepal, basks in 271 hours of sunshine, marking a gentle transition from the sun-soaked summer months to the cooler autumn days. Following a peak in sunshine hours from April to May, which saw remarkable totals of 346 and 350 hours, September experiences a dip but still retains a healthy amount of sunlight. This month stands out as a bridge to autumn, showcasing a balance between lingering warmth and the anticipation of seasonal change. Notably, September's hours are a significant improvement over the preceding monsoon months of July and August, which recorded only 228 and 239 hours. As the days grow shorter, Lamjung enjoys a comforting mix of sunny afternoons, perfectly complementing the vibrant landscapes as they shift into shades of gold and brown.

Monthly Sunshine Duration in Lamjung: September Highlighted

The September sunshine duration represents the total number of hours Lamjung experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec241h286h339h346h350h307h228h239h271h321h299h297h
Data source: Lamjung September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lamjung During September

In Lamjung, Nepal, the likelihood of sunny weather in September is notably low, with only a 13% chance of sunshine. This trend starkly contrasts with the vibrant sunny days of April at 69%, showcasing a significant shift as the monsoon season sets in during the summer months. Following the heavy rains of July and August, which drop to a mere 3% chance, September continues to grapple with lingering cloud cover and occasional showers. As the month progresses, there's a gradual return to clearer skies, highlighted by a rebound to 43% by October, hinting at a transition towards more favorable weather. Therefore, while September may not offer the sunniest conditions, it paves the way for the clearer days that follow.

Percentage of Sunny Days in September in Lamjung

The chart illustrates the percentage of sunny days in Lamjung throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Lamjung experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%46%51%69%27%17%3%3%13%44%20%46%
Data source: Lamjung September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lamjung in September

In Lamjung, Nepal, the rhythm of daylight unfolds beautifully through the seasons. Starting the year with 10 hours of daylight in January, there is a steady increase as February and March each enjoy an additional hour. This upward trend peaks in April and May, where the days stretch to a generous 12 and 13 hours, respectively, allowing for vibrant spring activities. As summer settles in, June, July, and August maintain this sunny trend, basking in 13 hours of daylight. However, as September arrives, daylight begins to gently taper off to 12 hours, marking the transition towards autumn. This gradual decline continues into October, where daylight shrinks to 11 hours, reminiscent of the shorter days that will follow in November and December. The consistency in daylight duration highlights the predictability of nature's cycle in this breathtaking region.

Average Daylight Hours in Lamjung for September

The chart illustrates the variation in daylight duration in Lamjung throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 33m11h 11m11h 59m12h 50m13h 32m13h 53m13h 42m13h 5m12h 17m11h 27m10h 44m10h 22m
Data source: Lamjung daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Lamjung

As summer transitions to autumn in Lamjung, Nepal, September marks a gentle shift in the climate, characterized by a notably calm atmosphere. With an average wind speed of 0.9 m/s (2 mph), the breezes remain soft and soothing, consistent with the prevailing trend observed through the preceding months. The wind speed during this time mirrors the slight decline seen since early summer, reflecting the region's tendency for lighter winds as the monsoon season concludes. Although the winds are gentle, they gracefully convey the serene beauty of September, offering a tranquil backdrop as the landscape prepares to embrace the cooler days ahead.

Average September Wind Speed in Lamjung

The chart displays monthly wind speed patterns in Lamjung, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec1.21.01.11.31.01.01.00.90.9 m/s1.01.01.0
Data source: Lamjung September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Lamjung Compares to Other Months

Weather in Lamjung varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Lamjung, focusing on differences in temperature, rainfall, humidity, and UV levels.

In September, the weather is quite warm with average temperatures around 22°C (71°F), peaking at 27°C (82°F) during the day. However, this month also experiences significant rainfall, with a total precipitation of 890 mm (35.1 in) over about 28 days, leading to high humidity levels of 85%. In contrast, January brings much colder conditions, with average temperatures dropping to 9°C (48°F) and lows reaching -3°C (26°F). The precipitation in January is considerably lower at 138 mm (5.4 in), occurring over just 15 days, and the humidity is also reduced to 61%. This stark difference in weather patterns highlights the shift from the end of the rainy season in September to the dry winter in January. For a more detailed look, you can explore Lamjung weather in January.

September and February present strikingly different weather conditions. In September, temperatures range from a mild 13°C (56°F) at night to a warm 27°C (82°F) during the day, accompanied by high humidity at 85%. Precipitation is significant, with 890 mm (35.1 in) falling over 28 days, creating a lush landscape. In contrast, February brings much cooler temperatures, with nighttime lows dipping to -1°C (30°F) and daytime highs reaching 20°C (69°F), yielding an average of 11°C (52°F). Precipitation is notably less at 212 mm (8.3 in) over 21 days, and humidity drops to 69%. For detailed insights into February weather, you can explore Lamjung weather in February.

In comparing the weather between September and March, notable differences emerge. September typically enjoys milder temperatures, with averages around 22°C (71°F) and maximums reaching 27°C (82°F), whereas March sees cooler conditions, with average temperatures only around 14°C (57°F) and highs of 25°C (77°F). September is notably wetter, experiencing 890 mm (35.1 in) of precipitation over 28 days and a high humidity of 85%, while March has significantly less rainfall at 186 mm (7.3 in) across 19 days and a lower humidity of 59%. For further details on March weather specifics, you can visit Lamjung weather in March.

September and April present distinctly different 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 22°C (71°F), accompanied by high humidity levels of 85%. This month is characterized by significant rainfall, totaling 890 mm (35.1 in) over 28 days, creating a lush environment. In contrast, April offers milder temperatures, with a minimum of 5°C (41°F) and a maximum of 25°C (78°F), leading to an average of 17°C (63°F). Precipitation in April is notably lower at 208 mm (8.2 in), spread over 18 days, and the humidity level drops to 48%. For those interested in more details, you can visit Lamjung weather in April.

September and May present contrasting 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 22°C (71°F), making it generally warmer than May, where the temperatures span from 8°C (47°F) to 27°C (81°F) and average around 19°C (67°F). September is notably wetter, with a staggering 890 mm (35.1 in) of precipitation over 28 days, compared to May's 369 mm (14.5 in) over 27 days. Additionally, the humidity in September is significantly higher at 85%, while May experiences a more comfortable 54%. For a more detailed look at May weather, visit Lamjung weather in May.

When comparing the weather in September and June, one can observe distinct differences in temperature and precipitation. September tends to have slightly warmer temperatures, with highs reaching up to 27°C (82°F) compared to June's maximum of 28°C (82°F), though the average remains the same at 22°C (71°F) during both months. However, September is markedly wetter, receiving 890 mm (35.1 in) of precipitation over 28 days, in contrast to June's 744 mm (29.3 in) across 29 days. Additionally, September's humidity is significantly higher at 85%, while June maintains a lower humidity level of 60%. For a more detailed look at the climate in June, you can refer to Lamjung weather in June.

In comparing the weather between September and July, we see both similarities and notable differences. September experiences a temperature range from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), with an average of 22°C (71°F), while July has slightly higher temperatures, with a minimum of 17°C (64°F) and a maximum of 29°C (84°F), maintaining the same average of 22°C (72°F).

Precipitation patterns also differ significantly; July records a much higher total of 1545 mm (60.8 in) over 31 days, compared to September's 890 mm (35.1 in) over 28 days. The humidity levels are fairly comparable, with September at 85% and July at 83%. Overall, July tends to be wetter and slightly warmer, while September offers cooler nights and less rainfall. For a more detailed look at the weather in July, visit Lamjung weather in July.

September weather shows a slight cooling compared to August, with minimum temperatures dropping from 17°C in August to 13°C in September. Both months have similar average temperatures at around 22°C, but August tends to be warmer at its peak, reaching a maximum of 29°C compared to 27°C in September. Precipitation is significantly higher in August, with 1241 mm over 30 days, compared to 890 mm over 28 days in September, resulting in a more humid environment in August, reflected in the 90% humidity level versus 85% in September. For more details on August weather, you can visit Lamjung weather in August.

September and October display distinct weather patterns that reflect the transition into autumn. In September, temperatures range from a minimum of 13°C (56°F) to a maximum of 27°C (82°F), with an average of 22°C (71°F). The month is characterized by high humidity at 85% and significant precipitation, totaling 890 mm (35.1 in) over 28 days. In contrast, October sees a drop in minimum temperatures to 3°C (38°F) while maintaining the same maximum of 27°C (82°F) and an average of 18°C (65°F). The humidity also decreases to 68%, and rainfall considerably reduces to 169 mm (6.6 in) over just 19 days. For more specific insights, you can check Lamjung weather in October.

In September, the weather is considerably warmer with average temperatures reaching 22°C (71°F) and highs of 27°C (82°F), while November sees much cooler temperatures, averaging around 14°C (57°F) with a maximum of 25°C (77°F). Additionally, September experiences heavy precipitation, totaling 890 mm (35.1 in) over 28 days, making it a rather wet month, while November is much drier, receiving only 126 mm (5.0 in) of rain across 15 days. Humidity levels are also notably different, with September's humidity at a high 85%, contrasting with November's more comfortable 54%. For more details on November weather in this region, you can check Lamjung weather in November.

September and December present a stark contrast in weather. In September, temperatures range from a mild 13°C (56°F) at night to a warm 27°C (82°F) during the day, accompanied by high humidity levels of 85%. This month also experiences significant rainfall, totaling 890 mm (35.1 in) across 28 days. Conversely, December brings much cooler temperatures, with lows plummeting to -2°C (28°F) and daytime averages around 10°C (51°F). The precipitation decreases dramatically to 134 mm (5.3 in) over 18 days, and the humidity drops to a comfortable 50%. For a detailed look at December conditions, you can visit Lamjung weather in December.

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Conclusion: What to Expect From September Weather in Lamjung

As September arrives in Lamjung, the weather undergoes a notable transformation, marking the end of the monsoon season. With an average temperature of 22°C (71°F), it offers a comfortable respite from the heat of summer, though the relative humidity remains high at 85%. Rainfall is prevalent, with nearly 890 mm falling over approximately 28 days, creating a lush, green landscape that stands in stark contrast to the drier months preceding it. This blend of warmth and moisture not only contributes to the area's vibrant flora but also enhances the local atmosphere, making it an ideal time to explore the natural beauty of Lamjung. For a deeper dive into the region's weather patterns, check out Lamjung Climate.