September Weather in Biay, Philippines

Last updated: August 27, 2025

In Biay, Philippines, the average temperature in September hovers around 26°C (79°F). Expect comfortable days with a minimum of 23°C (73°F) and occasional peaks at 31°C (89°F). However, be prepared for some rain, as the area sees 377 mm (14.9 in) of precipitation over 28 days, accompanied by a high average humidity of 82%.

September Temperature in Biay

In September in Biay, the average temperature is a pleasant 26°C (79°F). The maximum can reach a warm 31°C (89°F), while the minimum can drop to a comfortable 23°C (73°F). Overall, it’s an ideal time for outdoor activities and exploring the vibrant surroundings.

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

The chart illustrates September temperature patterns in Biay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Biay, September typically has an average temperature of 26°C (79°F), with highs reaching up to 31°C (89°F) and lows dropping to around 23°C (73°F).

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

September Precipitation in Biay

In Biay in September, the precipitation amount is 377 mm (14.9 in) distributed over a duration of 28 days.

September Precipitation Trends in Biay

The chart displays monthly precipitation patterns in Biay, 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 Biay, September typically receives around 377 mm (14.9 inches) of precipitation spread over approximately 28 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 Biay

In Biay in September, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

September Average Humidity in Biay

This chart illustrates the average monthly humidity levels in Biay, 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 Biay is approximately 82%, 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 Biay

In Biay 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 Biay, you can check here.

Maximum UV Index Levels in Biay for September

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

Data source: Biay 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 Biay Compares to Other Months

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

This table compares monthly weather conditions in Biay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	44 mm (1.7 inches)	74%	extreme
February Weather	25°C (78°F)	29 mm (1.1 inches)	73%	extreme
March Weather	27°C (80°F)	45 mm (1.8 inches)	74%	extreme
April Weather	27°C (81°F)	97 mm (3.8 inches)	76%	extreme
May Weather	27°C (82°F)	222 mm (8.8 inches)	76%	extreme
June Weather	27°C (81°F)	387 mm (15.2 inches)	79%	extreme
July Weather	26°C (79°F)	583 mm (22.9 inches)	83%	extreme
August Weather	26°C (79°F)	549 mm (21.6 inches)	83%	extreme
September Weather	26°C (79°F)	377 mm (14.9 inches)	82%	extreme
October Weather	26°C (80°F)	262 mm (10.3 inches)	80%	extreme
November Weather	27°C (80°F)	136 mm (5.4 inches)	84%	extreme
December Weather	26°C (79°F)	80 mm (3.1 inches)	81%	very high