Last updated: August 27, 2025
In September, the average temperature in San Alfonso, Philippines hovers around 27°C (81°F). Expect minimums of 24°C (76°F) and maximums reaching 30°C (86°F). However, be prepared for a good amount of rain, with 170 mm (6.7 in) of precipitation over 22 days. With an average humidity of 85%, it’s a perfect opportunity to embrace the tropical vibes!
In September in San Alfonso, the average temperature is 27°C (81°F), with maximums reaching 30°C (86°F) and minimums dropping to as low as 24°C (76°F). It's a great time to visit for those who enjoy warm, pleasant weather.
In San Alfonso in September, the precipitation amount is 170 mm (6.7 in) over the course of 22 days.
In San Alfonso in September humidity is 85%. With an average temperature of 27°C (81°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier as sweat clings to your skin and the air feels almost tangible, which can be quite challenging for traveling.
In San Alfonso 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 Alfonso.
UV Risk Categories
Weather in San Alfonso varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Alfonso, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 25°C (78°F) | 455 mm (17.9 inches) | 90% | extreme |
| February Weather | 25°C (78°F) | 394 mm (15.5 inches) | 92% | extreme |
| March Weather | 25°C (78°F) | 242 mm (9.5 inches) | 90% | extreme |
| April Weather | 26°C (79°F) | 127 mm (5.0 inches) | 87% | extreme |
| May Weather | 27°C (80°F) | 155 mm (6.1 inches) | 83% | extreme |
| June Weather | 27°C (81°F) | 165 mm (6.5 inches) | 83% | extreme |
| July Weather | 27°C (81°F) | 168 mm (6.6 inches) | 82% | extreme |
| August Weather | 27°C (81°F) | 148 mm (5.8 inches) | 83% | extreme |
| September Weather | 27°C (81°F) | 170 mm (6.7 inches) | 85% | extreme |
| October Weather | 27°C (80°F) | 189 mm (7.5 inches) | 82% | extreme |
| November Weather | 26°C (79°F) | 202 mm (8.0 inches) | 83% | extreme |
| December Weather | 26°C (79°F) | 271 mm (10.7 inches) | 87% | extreme |