Last updated: August 27, 2025
In September, the average temperature in San Luis, Philippines is a warm 26°C (80°F), with minimums dipping to 22°C (73°F) and maximums rising up to 33°C (92°F). Expect a fair amount of precipitation, totaling 286 mm (11.2 in) over 27 days. Prepare yourself for a muggy atmosphere, as the average humidity sits at a high 89%.
In September in San Luis, the average temperature is 26°C (80°F), with maximums reaching 33°C (92°F) and minimums dropping to as low as 22°C (73°F). This pleasant climate makes it an ideal time to explore the beauty of San Luis and enjoy outdoor activities.
In San Luis in September, the total precipitation amount is 286 mm (11.2 in) spread over 27 days.
In San Luis in September, humidity is 89%. With an average temperature of 26°C (80°F), this humidity feels like a warm, sticky embrace, making travel feel exhausting as the air clings to your skin and saps your energy, urging you to seek shade and refreshment at every turn.
In San Luis 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 Luis, you can check here.
UV Risk Categories
Weather in San Luis varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Luis, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 23°C (74°F) | 211 mm (8.3 inches) | 76% | extreme |
| February Weather | 23°C (74°F) | 155 mm (6.1 inches) | 71% | extreme |
| March Weather | 24°C (76°F) | 97 mm (3.8 inches) | 68% | extreme |
| April Weather | 25°C (77°F) | 94 mm (3.7 inches) | 69% | extreme |
| May Weather | 27°C (80°F) | 215 mm (8.4 inches) | 76% | extreme |
| June Weather | 27°C (81°F) | 168 mm (6.6 inches) | 87% | extreme |
| July Weather | 26°C (80°F) | 291 mm (11.4 inches) | 88% | extreme |
| August Weather | 27°C (80°F) | 251 mm (9.9 inches) | 89% | extreme |
| September Weather | 26°C (80°F) | 286 mm (11.2 inches) | 89% | extreme |
| October Weather | 26°C (79°F) | 339 mm (13.3 inches) | 86% | extreme |
| November Weather | 25°C (77°F) | 276 mm (10.9 inches) | 89% | very high |
| December Weather | 24°C (75°F) | 315 mm (12.4 inches) | 86% | very high |