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September Weather in San Mariano, Philippines

Last updated: August 27, 2025

In September, the average temperature in San Mariano, Philippines is a warm 26°C (79°F), with daily fluctuations ranging from a minimum of 21°C (70°F) to a maximum of 33°C (92°F). Expect considerable precipitation, with 342 mm (13.5 in) of rainfall spread over 23 days. The atmosphere is notably humid, boasting an average humidity of 85%.

September Temperature in San Mariano

In September, in San Mariano, the average temperature is 26°C (79°F). The maximum can reach 33°C (92°F) and the minimum can be as low as 21°C (70°F). This pleasant climate makes San Mariano an ideal destination for travelers seeking warm weather and outdoor activities.

September Weather in San Mariano: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in San Mariano, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Mariano, September typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (92°F) and lows dropping to around 21°C (70°F).
JanFebMarAprMayJunJulAugSepOctNovDec767677787979787979797877
Data source: Temperature data for San Mariano 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 San Mariano

In San Mariano in September, the precipitation amount is 342 mm (13.5 in) during a span of 23 days.

September Precipitation Trends in San Mariano

The chart displays monthly precipitation patterns in San Mariano, 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 San Mariano, September typically receives around 342 mm (13.5 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec472329302272539559388345342359412389
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Mariano

In San Mariano in September, humidity is 85%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities feel stifling and exhausting for travelers.

September Average Humidity in San Mariano

This chart illustrates the average monthly humidity levels in San Mariano, 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 San Mariano is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%92%91%87%84%83%82%83%85%82%84%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Mariano

In San Mariano in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in San Mariano.

Maximum UV Index Levels in San Mariano for September

The chart shows the monthly maximum UV Index (UVI) for San Mariano 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 San Mariano typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516161513141415141312
Data source: San Mariano 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 San Mariano Compares to Other Months

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

This table compares monthly weather conditions in San Mariano, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)472 mm (18.6 inches)90%extreme
February Weather24°C (76°F)329 mm (13.0 inches)92%extreme
March Weather25°C (77°F)302 mm (11.9 inches)90%extreme
April Weather25°C (78°F)272 mm (10.7 inches)87%extreme
May Weather26°C (79°F)539 mm (21.2 inches)83%extreme
June Weather26°C (79°F)559 mm (22.0 inches)83%extreme
July Weather26°C (79°F)388 mm (15.3 inches)82%extreme
August Weather26°C (79°F)345 mm (13.6 inches)83%extreme
September Weather26°C (79°F)342 mm (13.5 inches)85%extreme
October Weather26°C (79°F)359 mm (14.1 inches)82%extreme
November Weather25°C (78°F)412 mm (16.2 inches)83%extreme
December Weather25°C (77°F)389 mm (15.3 inches)87%extreme

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