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September Weather in San Salvador, Philippines

Last updated: August 27, 2025

In San Salvador, Philippines, the average temperature in September hovers around 28°C (82°F). Expect minimum temperatures to dip to 23°C (73°F), while highs can reach a sizzling 34°C (93°F). Be prepared for 278 mm (10.9 in) of rain over 28 days, along with an average humidity level of 90%. So, if you're planning a visit, pack your umbrellas and stay cool!

September Temperature in San Salvador

In September in San Salvador, the average temperature is 28°C (82°F). The maximum can reach 34°C (93°F), and the minimum can be as low as 23°C (73°F). This makes it an ideal time to enjoy outdoor activities and explore the vibrant surroundings.

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

The chart illustrates September temperature patterns in San Salvador, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Salvador, 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 (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec808082838583828282828281
Data source: Temperature data for San Salvador 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 Salvador

In San Salvador in September, the precipitation amount is 278 mm (10.9 in) spread over 28 days.

September Precipitation Trends in San Salvador

The chart displays monthly precipitation patterns in San Salvador, 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 Salvador, September typically receives around 278 mm (10.9 inches) of precipitation spread over approximately 28 days.
JanFebMarAprMayJunJulAugSepOctNovDec19313611080148203247223278284206254
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in San Salvador

In San Salvador in September, humidity is 90%. With an average temperature of 28°C (82°F), this humidity feels like a heavy blanket enveloping you, making travel feel stifling and exhausting, as each step feels laborious and sweat clings to your skin.

September Average Humidity in San Salvador

This chart illustrates the average monthly humidity levels in San Salvador, 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 Salvador is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%80%77%78%85%87%88%89%90%87%90%91%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in San Salvador

In San Salvador 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 San Salvador, you can check here.

Maximum UV Index Levels in San Salvador for September

The chart shows the monthly maximum UV Index (UVI) for San Salvador 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 Salvador typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec121416161314141414131211
Data source: San Salvador 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 Salvador Compares to Other Months

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

This table compares monthly weather conditions in San Salvador, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (80°F)193 mm (7.6 inches)85%extreme
February Weather27°C (80°F)136 mm (5.3 inches)80%extreme
March Weather28°C (82°F)110 mm (4.3 inches)77%extreme
April Weather28°C (84°F)80 mm (3.2 inches)78%extreme
May Weather29°C (85°F)148 mm (5.8 inches)84%extreme
June Weather29°C (84°F)203 mm (8.0 inches)87%extreme
July Weather28°C (83°F)247 mm (9.7 inches)88%extreme
August Weather28°C (83°F)223 mm (8.8 inches)89%extreme
September Weather28°C (82°F)278 mm (10.9 inches)90%extreme
October Weather28°C (82°F)284 mm (11.2 inches)87%extreme
November Weather28°C (82°F)206 mm (8.1 inches)90%extreme
December Weather27°C (81°F)254 mm (10.0 inches)91%extreme

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