September Weather in Phrao, Thailand

Last updated: August 27, 2025

In September, the average temperature in Phrao, Thailand is a warm 25°C (77°F). During this month, expect a minimum of 19°C (66°F) and a maximum of 33°C (91°F). However, prepare for the weather as precipitation can reach 273 mm (10.8 in) over 26 days, with an average humidity level of 83%.

September Temperature in Phrao

In September in Phrao, the average temperature is 25°C (77°F). The maximum can reach 33°C (91°F), while the minimum can be as low as 19°C (66°F). This pleasant climate makes Phrao an ideal destination for outdoor activities and exploring the local attractions.

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

The chart illustrates September temperature patterns in Phrao, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Phrao, September typically has an average temperature of 25°C (77°F), with highs reaching up to 33°C (91°F) and lows dropping to around 19°C (66°F).

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

September Precipitation in Phrao

In Phrao in September, the precipitation amount is 273 mm (10.8 in), which occurs over the course of 26 days.

September Precipitation Trends in Phrao

The chart displays monthly precipitation patterns in Phrao, 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 Phrao, September typically receives around 273 mm (10.8 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 Phrao

In Phrao in September humidity is 83%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket, making it essential for travelers to stay hydrated and seek shade to enjoy their adventures comfortably.

September Average Humidity in Phrao

This chart illustrates the average monthly humidity levels in Phrao, 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 Phrao is approximately 83%, 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 Phrao

In Phrao 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 Phrao, you can check here.

Maximum UV Index Levels in Phrao for September

The chart shows the monthly maximum UV Index (UVI) for Phrao 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 Phrao typically reaches 14, which falls under the extreme exposure category.

Data source: Phrao 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 Phrao Compares to Other Months

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

This table compares monthly weather conditions in Phrao, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	20°C (69°F)	26 mm (1.0 inches)	51%	very high
February Weather	22°C (71°F)	7 mm (0.3 inches)	46%	very high
March Weather	25°C (77°F)	5 mm (0.2 inches)	38%	extreme
April Weather	26°C (79°F)	95 mm (3.7 inches)	36%	extreme
May Weather	26°C (80°F)	141 mm (5.5 inches)	63%	extreme
June Weather	26°C (79°F)	232 mm (9.1 inches)	81%	extreme
July Weather	26°C (78°F)	303 mm (11.9 inches)	83%	extreme
August Weather	25°C (78°F)	347 mm (13.7 inches)	91%	extreme
September Weather	25°C (77°F)	273 mm (10.8 inches)	83%	extreme
October Weather	24°C (75°F)	185 mm (7.3 inches)	67%	extreme
November Weather	22°C (72°F)	45 mm (1.8 inches)	60%	very high
December Weather	19°C (67°F)	21 mm (0.8 inches)	56%	very high