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September Weather in Om Koi, Thailand

Last updated: August 27, 2025

In September, the average temperature in Om Koi, Thailand hovers around 23°C (74°F). The weather can be variable, with temperatures dipping as low as 19°C (66°F) and soaring up to 31°C (89°F). During this month, expect a significant precipitation amount of 321 mm (12.6 in) spread over about 28 days, paired with an average humidity of 84%. Plan accordingly to enjoy all that Om Koi has to offer!

September Temperature in Om Koi

In September in Om Koi, the average temperature is 23°C (74°F). Maximums can reach 31°C (89°F), and minimums can be as low as 19°C (66°F). This pleasant climate makes Om Koi an ideal destination for travelers seeking warm yet comfortable weather.

September Weather in Om Koi: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Om Koi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Om Koi, 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 19°C (66°F).
JanFebMarAprMayJunJulAugSepOctNovDec687074767574737374737166
Data source: Temperature data for Om Koi 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 Om Koi

In Om Koi in September, the total precipitation amount is 321 mm (12.6 in) over a period of 28 days.

September Precipitation Trends in Om Koi

The chart displays monthly precipitation patterns in Om Koi, 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 Om Koi, September typically receives around 321 mm (12.6 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec19391052433373834493212054019
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Om Koi

In Om Koi in September, humidity is 84%. With an average temperature of 23°C (74°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel sticky and heavy, while the air's thickness can be quite exhausting for long periods of travel.

September Average Humidity in Om Koi

This chart illustrates the average monthly humidity levels in Om Koi, 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 Om Koi is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec51%48%45%49%71%84%84%87%84%71%62%55%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Om Koi

In Om Koi 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 Om Koi, you can check here.

Maximum UV Index Levels in Om Koi for September

The chart shows the monthly maximum UV Index (UVI) for Om Koi 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 Om Koi typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10121413151415151413109
Data source: Om Koi 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 Om Koi Compares to Other Months

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

This table compares monthly weather conditions in Om Koi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather20°C (68°F)19 mm (0.8 inches)51%very high
February Weather21°C (70°F)3 mm (0.1 inches)48%extreme
March Weather23°C (75°F)9 mm (0.3 inches)45%extreme
April Weather24°C (76°F)105 mm (4.1 inches)49%extreme
May Weather24°C (76°F)243 mm (9.6 inches)71%extreme
June Weather23°C (74°F)337 mm (13.3 inches)84%extreme
July Weather23°C (73°F)383 mm (15.1 inches)84%extreme
August Weather23°C (73°F)449 mm (17.7 inches)87%extreme
September Weather23°C (74°F)321 mm (12.6 inches)84%extreme
October Weather23°C (73°F)205 mm (8.1 inches)71%extreme
November Weather22°C (71°F)40 mm (1.6 inches)62%very high
December Weather19°C (67°F)19 mm (0.8 inches)55%very high

Compare Om Koi's Climate with Cities Worldwide