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September Weather in Nakhon Phanom, Thailand

Last updated: August 27, 2025

In Nakhon Phanom, Thailand, the average temperature in September reaches a warm 27°C (81°F), with minimums dipping to 21°C (70°F) and maximums soaring to 35°C (94°F). Expect substantial rainfall, with an average precipitation of 318 mm (12.5 in) spread over 24 days. Additionally, the air is quite humid, with an average humidity level of 86%.

September Temperature in Nakhon Phanom

In September in Nakhon Phanom, the average temperature is 27°C (81°F). Maximums can reach 35°C (94°F), while minimums can drop to 21°C (70°F). This makes Nakhon Phanom a warm and inviting destination for travelers seeking pleasant weather.

September Weather in Nakhon Phanom: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Nakhon Phanom, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Nakhon Phanom, September typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (94°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec727480828382818181797772
Data source: Temperature data for Nakhon Phanom 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 Nakhon Phanom

In Nakhon Phanom in September, the total precipitation amount is 318 mm (12.5 in) over a span of 24 days.

September Precipitation Trends in Nakhon Phanom

The chart displays monthly precipitation patterns in Nakhon Phanom, 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 Nakhon Phanom, September typically receives around 318 mm (12.5 inches) of precipitation spread over approximately 24 days.
JanFebMarAprMayJunJulAugSepOctNovDec6114764188300543483318146236
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Nakhon Phanom

In Nakhon Phanom in September, humidity is 86%. With an average temperature of 27°C (81°F), this humidity feels like walking through a steamy blanket, making traveling feel heavy and exhausting as each step absorbs the warm, moist air.

September Average Humidity in Nakhon Phanom

This chart illustrates the average monthly humidity levels in Nakhon Phanom, 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 Nakhon Phanom is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec59%54%45%40%65%82%90%92%86%80%72%67%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Nakhon Phanom

In Nakhon Phanom in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Nakhon Phanom, you can check here.

Maximum UV Index Levels in Nakhon Phanom for September

The chart shows the monthly maximum UV Index (UVI) for Nakhon Phanom 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 Nakhon Phanom typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec9111315141315141412109
Data source: Nakhon Phanom 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 Nakhon Phanom Compares to Other Months

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

This table compares monthly weather conditions in Nakhon Phanom, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (73°F)6 mm (0.2 inches)59%very high
February Weather23°C (74°F)11 mm (0.4 inches)54%extreme
March Weather27°C (80°F)47 mm (1.9 inches)45%extreme
April Weather28°C (82°F)64 mm (2.5 inches)40%extreme
May Weather28°C (83°F)188 mm (7.4 inches)65%extreme
June Weather28°C (83°F)299 mm (11.8 inches)82%extreme
July Weather27°C (81°F)542 mm (21.4 inches)90%extreme
August Weather27°C (81°F)483 mm (19.0 inches)92%extreme
September Weather27°C (81°F)318 mm (12.5 inches)86%extreme
October Weather26°C (80°F)146 mm (5.8 inches)80%extreme
November Weather25°C (77°F)23 mm (0.9 inches)72%very high
December Weather22°C (72°F)6 mm (0.2 inches)66%very high

Compare Nakhon Phanom's Climate with Cities Worldwide