September Weather in Santo Tomas, Philippines

Last updated: August 27, 2025

In September, the average temperature in Santo Tomas, Philippines reaches a warm 28°C (82°F). You can expect a range from a comfortable 23°C (74°F) to a sizzling 34°C (93°F). Keep in mind that the region sees around 318 mm (12.5 in) of precipitation spread over 26 days, adding to the 87% humidity—perfect for those who enjoy a lush, tropical atmosphere! 🌧️

September Temperature in Santo Tomas

In September in Santo Tomas, the average temperature is 28°C (82°F). Maximums can reach 34°C (93°F), while minimums can dip to as low as 23°C (74°F). This warm climate makes Santo Tomas an ideal destination for travelers seeking sunny weather and outdoor adventures.

September Weather in Santo Tomas: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santo Tomas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santo Tomas, September typically has an average temperature of 28°C (82°F), with highs reaching up to 34°C (93°F) and lows dropping to around 23°C (74°F).

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

September Precipitation in Santo Tomas

In Santo Tomas in September, the precipitation amount is 318 mm (12.5 in) spread over 26 days, indicating a significant level of rainfall during that period.

September Precipitation Trends in Santo Tomas

The chart displays monthly precipitation patterns in Santo Tomas, 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 Santo Tomas, September typically receives around 318 mm (12.5 inches) of precipitation spread over approximately 26 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Santo Tomas

In Santo Tomas in September humidity is 87%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket wrapping around you, making travel challenging as you navigate the air's heavy moisture.

September Average Humidity in Santo Tomas

This chart illustrates the average monthly humidity levels in Santo Tomas, 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 Santo Tomas 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 Santo Tomas

In Santo Tomas 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 Santo Tomas, you can check here.

Maximum UV Index Levels in Santo Tomas for September

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

Data source: Santo Tomas 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 Santo Tomas Compares to Other Months

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

This table compares monthly weather conditions in Santo Tomas, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	23°C (74°F)	107 mm (4.2 inches)	77%	extreme
February Weather	23°C (74°F)	107 mm (4.2 inches)	73%	extreme
March Weather	26°C (78°F)	52 mm (2.0 inches)	71%	extreme
April Weather	27°C (81°F)	40 mm (1.6 inches)	73%	extreme
May Weather	29°C (85°F)	139 mm (5.5 inches)	77%	extreme
June Weather	30°C (85°F)	180 mm (7.1 inches)	85%	extreme
July Weather	28°C (83°F)	340 mm (13.4 inches)	86%	extreme
August Weather	28°C (83°F)	315 mm (12.4 inches)	87%	extreme
September Weather	28°C (82°F)	318 mm (12.5 inches)	87%	extreme
October Weather	27°C (80°F)	265 mm (10.4 inches)	86%	extreme
November Weather	26°C (79°F)	304 mm (12.0 inches)	89%	very high
December Weather	24°C (76°F)	239 mm (9.4 inches)	85%	very high