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September Weather in Xam Nua, Laos

Last updated: August 23, 2025

In September, the average temperature in Xam Nua, Laos hovers around 23°C (74°F), creating a comfortably warm atmosphere. However, temperatures can vary significantly, with a minimum of 15°C (58°F) and a maximum of 31°C (89°F). Be prepared for some rain during your visit, as 178 mm (7.0 in) of precipitation falls over 23 days, all while the average humidity remains high at 82%.

September Temperature in Xam Nua

In September in Xam Nua, the average temperature is 23°C (74°F). Maximums can reach 31°C (89°F), while minimums can drop as low as 15°C (58°F). This makes it an ideal time for travelers who enjoy mild temperatures and pleasant weather.

September Weather in Xam Nua: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Xam Nua, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Xam Nua, September typically has an average temperature of 23°C (74°F), with highs reaching up to 31°C (89°F) and lows dropping to around 15°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec596168707477757473696458
Data source: Temperature data for Xam Nua generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Xam Nua

In Xam Nua in September, the precipitation amount is 178 mm (7.0 in) spread over 23 days.

September Precipitation Trends in Xam Nua

The chart displays monthly precipitation patterns in Xam Nua, 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 Xam Nua, September typically receives around 178 mm (7.0 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec3025681211861842923631781533024
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Xam Nua

In Xam Nua in September, humidity is 82%. With an average temperature of 23°C (74°F), this humidity feels like you are walking through a warm, damp blanket, making travel a bit uncomfortable and sticky as you navigate the air thick with moisture.

September Average Humidity in Xam Nua

This chart illustrates the average monthly humidity levels in Xam Nua, 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 Xam Nua is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec63%65%57%50%68%79%91%92%82%76%72%68%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Xam Nua

In Xam Nua in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Xam Nua.

Maximum UV Index Levels in Xam Nua for September

The chart shows the monthly maximum UV Index (UVI) for Xam Nua 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 Xam Nua typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111313151415151512108
Data source: Xam Nua 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 Xam Nua Compares to Other Months

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

This table compares monthly weather conditions in Xam Nua, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather15°C (59°F)30 mm (1.2 inches)63%very high
February Weather16°C (61°F)25 mm (1.0 inches)65%extreme
March Weather20°C (68°F)68 mm (2.7 inches)57%extreme
April Weather21°C (70°F)121 mm (4.8 inches)50%extreme
May Weather23°C (74°F)186 mm (7.3 inches)68%extreme
June Weather25°C (77°F)184 mm (7.2 inches)79%extreme
July Weather24°C (76°F)292 mm (11.5 inches)91%extreme
August Weather24°C (75°F)363 mm (14.3 inches)92%extreme
September Weather23°C (74°F)178 mm (7.0 inches)82%extreme
October Weather20°C (69°F)153 mm (6.0 inches)76%extreme
November Weather18°C (65°F)30 mm (1.2 inches)72%very high
December Weather15°C (58°F)24 mm (0.9 inches)68%very high

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