September Weather in Lasam, Philippines

Last updated: August 27, 2025

In September, the average temperature in Lasam, Philippines hovers around 28°C (83°F), with minimums dipping to 20°C (68°F) and maximums soaring up to 35°C (96°F). Expect to experience significant rainfall, with 206 mm (8.1 in) of precipitation spread over 20 days. Additionally, you'll find the air notably humid, with an average humidity level of 87%.

September Temperature in Lasam

In September in Lasam, the average temperature is 28°C (83°F). Maximum temperatures can reach 35°C (96°F), while minimum temperatures can dip as low as 20°C (68°F). It's an ideal time for travelers to enjoy warm weather and sunny days while exploring all that Lasam has to offer.

September Weather in Lasam: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lasam, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lasam, September typically has an average temperature of 28°C (83°F), with highs reaching up to 35°C (96°F) and lows dropping to around 20°C (68°F).

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

September Precipitation in Lasam

In Lasam in September, the precipitation amount is 206 mm (8.1 in) over a period of 20 days.

September Precipitation Trends in Lasam

The chart displays monthly precipitation patterns in Lasam, 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 Lasam, September typically receives around 206 mm (8.1 inches) of precipitation spread over approximately 20 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 Lasam

In Lasam in September humidity is 87%. With an average temperature of 28°C (83°F), this humidity feels like you're enveloped in a warm, sticky blanket, making outdoor activities slightly uncomfortable and travel plans require frequent breaks for hydration and respite from the heat.

September Average Humidity in Lasam

This chart illustrates the average monthly humidity levels in Lasam, 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 Lasam 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 Lasam

In Lasam 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 Lasam, you can check here.

Maximum UV Index Levels in Lasam for September

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

Data source: Lasam 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 Lasam Compares to Other Months

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

This table compares monthly weather conditions in Lasam, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	24°C (75°F)	139 mm (5.5 inches)	77%	very high
February Weather	24°C (75°F)	150 mm (5.9 inches)	73%	extreme
March Weather	26°C (79°F)	82 mm (3.2 inches)	71%	extreme
April Weather	27°C (81°F)	77 mm (3.0 inches)	73%	extreme
May Weather	29°C (85°F)	225 mm (8.9 inches)	77%	extreme
June Weather	30°C (86°F)	135 mm (5.3 inches)	85%	extreme
July Weather	29°C (84°F)	192 mm (7.6 inches)	86%	extreme
August Weather	29°C (84°F)	248 mm (9.8 inches)	87%	extreme
September Weather	28°C (83°F)	206 mm (8.1 inches)	87%	extreme
October Weather	27°C (81°F)	221 mm (8.7 inches)	86%	extreme
November Weather	26°C (79°F)	333 mm (13.1 inches)	89%	very high
December Weather	25°C (77°F)	356 mm (14.0 inches)	85%	very high