September Weather in Lahan, Nepal

Last updated: August 31, 2025

In Lahan, Nepal, the average temperature in September is a warm 28°C (83°F). Expect to experience a minimum of 22°C (72°F) and a maximum of 35°C (96°F). With precipitation around 245 mm (9.7 in) over 24 days, and an average humidity of 92%, it's a tropical climate that keeps the air feeling quite muggy.

September Temperature in Lahan

In September in Lahan, the average temperature is 28°C (83°F). Maximums can reach 35°C (96°F), while minimums can drop as low as 22°C (72°F). This pleasant climate makes it an ideal time for travelers to explore the outdoors and enjoy local attractions.

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

The chart illustrates September temperature patterns in Lahan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lahan, September typically has an average temperature of 28°C (83°F), with highs reaching up to 35°C (96°F) and lows dropping to around 22°C (72°F).

Data source: Temperature data for Lahan generated using information from the Copernicus Climate Change Service.

September Precipitation in Lahan

In Lahan in September, the precipitation amount is 245 mm (9.7 in) over a span of 24 days.

September Precipitation Trends in Lahan

The chart displays monthly precipitation patterns in Lahan, 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 Lahan, September typically receives around 245 mm (9.7 inches) of precipitation spread over approximately 24 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Lahan

In Lahan in September humidity is 92%. With an average temperature of 28°C (83°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel stifling and challenging for traveling.

September Average Humidity in Lahan

This chart illustrates the average monthly humidity levels in Lahan, 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 Lahan is approximately 92%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lahan

In Lahan in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Lahan.

Maximum UV Index Levels in Lahan for September

The chart shows the monthly maximum UV Index (UVI) for Lahan 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 Lahan typically reaches 12, which falls under the extreme exposure category.

Data source: Lahan 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.

How September Weather in Lahan Compares to Other Months

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

This table compares monthly weather conditions in Lahan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	15°C (59°F)	7 mm (0.3 inches)	58%	moderate
February Weather	18°C (65°F)	14 mm (0.5 inches)	53%	high
March Weather	24°C (75°F)	17 mm (0.7 inches)	32%	very high
April Weather	27°C (82°F)	45 mm (1.8 inches)	25%	very high
May Weather	28°C (84°F)	114 mm (4.5 inches)	46%	very high
June Weather	29°C (85°F)	212 mm (8.4 inches)	77%	extreme
July Weather	28°C (83°F)	482 mm (19.0 inches)	92%	extreme
August Weather	29°C (84°F)	313 mm (12.3 inches)	92%	extreme
September Weather	28°C (83°F)	245 mm (9.7 inches)	92%	extreme
October Weather	26°C (79°F)	85 mm (3.3 inches)	87%	very high
November Weather	21°C (70°F)	1 mm (0.0 inches)	76%	high
December Weather	17°C (62°F)	7 mm (0.3 inches)	71%	moderate