Last updated: August 27, 2025
In May, the average temperature in San Mariano, Philippines is a warm 28°C (83°F). Expect comfortable conditions with minimums around 23°C (73°F) and peaks reaching 37°C (99°F). However, be prepared for some rain, as the area experiences an average precipitation of 111 mm (4.4 in) over 16 days. With an average humidity of 77%, it's a tropical climate that calls for light clothing and an umbrella!
In May in San Mariano, the average temperature is 28°C (83°F). The maximum can reach 37°C (99°F), while the minimum can be as low as 23°C (73°F). This warm climate makes it an ideal destination for beach lovers and those seeking sunshine.
In San Mariano in May, the precipitation amount is 111 mm (4.4 in) occurring over the course of 16 days.
In San Mariano in May, humidity is 77%. With an average temperature of 28°C (83°F), this humidity feels like walking through a warm, damp blanket, making outdoor activities more challenging and requiring frequent hydration breaks for travelers.
In San Mariano in May, 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 Mariano, you can check here.
UV Risk Categories
Weather in San Mariano varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in San Mariano, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 23°C (74°F) | 118 mm (4.6 inches) | 77% | extreme |
| February Weather | 23°C (74°F) | 92 mm (3.6 inches) | 73% | extreme |
| March Weather | 25°C (78°F) | 62 mm (2.5 inches) | 71% | extreme |
| April Weather | 27°C (80°F) | 47 mm (1.9 inches) | 73% | extreme |
| May Weather | 28°C (83°F) | 111 mm (4.4 inches) | 77% | extreme |
| June Weather | 29°C (85°F) | 140 mm (5.5 inches) | 85% | extreme |
| July Weather | 28°C (83°F) | 285 mm (11.2 inches) | 86% | extreme |
| August Weather | 28°C (82°F) | 216 mm (8.5 inches) | 87% | extreme |
| September Weather | 27°C (81°F) | 212 mm (8.3 inches) | 87% | extreme |
| October Weather | 26°C (80°F) | 183 mm (7.2 inches) | 86% | extreme |
| November Weather | 26°C (78°F) | 230 mm (9.0 inches) | 89% | extreme |
| December Weather | 24°C (76°F) | 215 mm (8.5 inches) | 85% | very high |