September Weather in Santa Monica, Philippines

Last updated: August 27, 2025

In Santa Monica, Philippines, the average temperature in September hovers around 28°C (82°F), with comfortable minimums of 25°C (78°F) and highs reaching up to 30°C (87°F). However, brace yourself for the elements, as you'll likely encounter 167 mm (6.6 in) of precipitation spread across 22 days, contributing to an average humidity level of 84%.

September Temperature in Santa Monica

In September in Santa Monica, the average temperature is 28°C (82°F). The maximum can reach 30°C (87°F), and the minimum can be as low as 25°C (78°F). This pleasant weather makes Santa Monica an ideal destination for travelers seeking warmth and comfort during this time of year.

September Weather in Santa Monica: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Santa Monica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Santa Monica, September typically has an average temperature of 28°C (82°F), with highs reaching up to 30°C (87°F) and lows dropping to around 25°C (78°F).

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

September Precipitation in Santa Monica

In Santa Monica in September, the precipitation amount is 167 mm (6.6 in) over the course of 22 days.

September Precipitation Trends in Santa Monica

The chart displays monthly precipitation patterns in Santa Monica, 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 Santa Monica, September typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 22 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 Santa Monica

In Santa Monica in September humidity is 84%. With an average temperature of 28°C (82°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel sticky and exhausting for traveling.

September Average Humidity in Santa Monica

This chart illustrates the average monthly humidity levels in Santa Monica, 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 Santa Monica is approximately 84%, 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 Santa Monica

In Santa Monica 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 Santa Monica.

Maximum UV Index Levels in Santa Monica for September

The chart shows the monthly maximum UV Index (UVI) for Santa Monica 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 Santa Monica typically reaches 15, which falls under the extreme exposure category.

Data source: Santa Monica 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 Santa Monica Compares to Other Months

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

This table compares monthly weather conditions in Santa Monica, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	27°C (80°F)	312 mm (12.3 inches)	90%	extreme
February Weather	26°C (80°F)	264 mm (10.4 inches)	90%	extreme
March Weather	27°C (80°F)	202 mm (7.9 inches)	90%	extreme
April Weather	27°C (81°F)	137 mm (5.4 inches)	88%	extreme
May Weather	28°C (82°F)	187 mm (7.4 inches)	83%	extreme
June Weather	28°C (82°F)	210 mm (8.3 inches)	81%	extreme
July Weather	28°C (83°F)	216 mm (8.5 inches)	80%	extreme
August Weather	28°C (83°F)	178 mm (7.0 inches)	81%	extreme
September Weather	28°C (82°F)	167 mm (6.6 inches)	84%	extreme
October Weather	28°C (82°F)	269 mm (10.6 inches)	81%	extreme
November Weather	27°C (81°F)	282 mm (11.1 inches)	84%	extreme
December Weather	27°C (81°F)	477 mm (18.8 inches)	88%	extreme