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September Weather in San Martin, Philippines

Last updated: August 27, 2025

In San Martin, Philippines, the average temperature in September hovers around 26°C (79°F). You can expect a comfortable minimum of 21°C (71°F), while temperatures can peak at a warm 32°C (89°F). Be prepared for ample rainfall, with 322 mm (12.7 in) spread across roughly 25 days, and don't forget the high humidity level averaging at 89%.

September Temperature in San Martin

In September in San Martin, the average temperature is 26°C (79°F). Maximums can reach 32°C (89°F), while minimums can dip to as low as 21°C (71°F). This mild and pleasant climate makes San Martin an ideal destination for travelers looking to enjoy warm weather and outdoor activities.

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

The chart illustrates September temperature patterns in San Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Martin, September typically has an average temperature of 26°C (79°F), with highs reaching up to 32°C (89°F) and lows dropping to around 21°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec777778798079787978787878
Data source: Temperature data for San Martin 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 Martin

In San Martin in September, the precipitation amount is 322 mm (12.7 in), occurring over a span of 25 days.

September Precipitation Trends in San Martin

The chart displays monthly precipitation patterns in San Martin, 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 Martin, September typically receives around 322 mm (12.7 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec275192183188419445366326322355287310
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Martin

In San Martin in September, humidity is 89%. With an average temperature of 26°C (79°F), this humidity feels like walking through a warm, thick blanket, making it feel much hotter and more exhausting for traveling, as every step seems to weigh you down in the muggy air.

September Average Humidity in San Martin

This chart illustrates the average monthly humidity levels in San Martin, 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 Martin is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%86%84%82%83%85%86%87%89%85%87%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Martin

In San Martin 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 Martin.

Maximum UV Index Levels in San Martin for September

The chart shows the monthly maximum UV Index (UVI) for San Martin 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 Martin typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516161514141415141312
Data source: San Martin 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 Martin Compares to Other Months

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

This table compares monthly weather conditions in San Martin, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)275 mm (10.8 inches)88%extreme
February Weather25°C (77°F)192 mm (7.6 inches)86%extreme
March Weather26°C (78°F)183 mm (7.2 inches)84%extreme
April Weather26°C (79°F)188 mm (7.4 inches)82%extreme
May Weather26°C (80°F)419 mm (16.5 inches)83%extreme
June Weather26°C (79°F)445 mm (17.5 inches)85%extreme
July Weather26°C (79°F)366 mm (14.4 inches)86%extreme
August Weather26°C (79°F)326 mm (12.8 inches)87%extreme
September Weather26°C (79°F)322 mm (12.7 inches)89%extreme
October Weather26°C (78°F)355 mm (14.0 inches)85%extreme
November Weather26°C (79°F)287 mm (11.3 inches)87%extreme
December Weather25°C (78°F)310 mm (12.2 inches)91%extreme

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