September Weather in Ko Chan, Thailand

Last updated: August 27, 2025

In September, the average temperature in Ko Chan, Thailand hovers around 28°C (83°F), with a minimum of 24°C (76°F) and a peak of 35°C (95°F). This month also sees 292 mm (11.5 in) of precipitation spread over 26 days, contributing to an average humidity level of a sweltering 87%. Be prepared for this tropical climate as you enjoy your time in Ko Chan!

September Temperature in Ko Chan

In September in Ko Chan, the average temperature is 28°C (83°F). Maximums can reach 35°C (95°F), and minimums can be as low as 24°C (76°F). This makes it an ideal time for travelers seeking warm weather and plenty of sunshine.

September Weather in Ko Chan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ko Chan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ko Chan, September typically has an average temperature of 28°C (83°F), with highs reaching up to 35°C (95°F) and lows dropping to around 24°C (76°F).

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

September Precipitation in Ko Chan

In Ko Chan in September, the total precipitation amount is 292 mm (11.5 in) spread over 26 days.

September Precipitation Trends in Ko Chan

The chart displays monthly precipitation patterns in Ko Chan, 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 Ko Chan, September typically receives around 292 mm (11.5 inches) of precipitation spread over approximately 26 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 Ko Chan

In Ko Chan in September humidity is 87%. With an average temperature of 28°C (83°F), this humidity feels like you're enveloped in a warm, sticky blanket, making outdoor activities slightly uncomfortable and travel plans require frequent breaks for hydration and respite from the heat.

September Average Humidity in Ko Chan

This chart illustrates the average monthly humidity levels in Ko Chan, 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 Ko Chan is approximately 87%, 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 Ko Chan

In Ko Chan in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Ko Chan.

Maximum UV Index Levels in Ko Chan for September

The chart shows the monthly maximum UV Index (UVI) for Ko Chan 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 Ko Chan typically reaches 13, which falls under the extreme exposure category.

Data source: Ko Chan 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 Ko Chan Compares to Other Months

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

This table compares monthly weather conditions in Ko Chan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (81°F)	21 mm (0.8 inches)	59%	very high
February Weather	28°C (82°F)	23 mm (0.9 inches)	58%	extreme
March Weather	29°C (85°F)	62 mm (2.4 inches)	61%	extreme
April Weather	29°C (85°F)	122 mm (4.8 inches)	70%	extreme
May Weather	29°C (85°F)	202 mm (8.0 inches)	80%	extreme
June Weather	29°C (85°F)	153 mm (6.0 inches)	85%	extreme
July Weather	29°C (84°F)	201 mm (7.9 inches)	86%	extreme
August Weather	29°C (84°F)	198 mm (7.8 inches)	88%	extreme
September Weather	28°C (83°F)	292 mm (11.5 inches)	87%	extreme
October Weather	28°C (83°F)	241 mm (9.5 inches)	83%	extreme
November Weather	28°C (82°F)	45 mm (1.8 inches)	78%	extreme
December Weather	27°C (81°F)	22 mm (0.9 inches)	70%	very high