Last updated: June 24, 2025
In Santa Margarita, United States, the average temperature in September hovers around 21°C (70°F), offering a pleasantly warm climate. However, temperatures can vary significantly, with a minimum of 7°C (46°F) and a scorching maximum of 40°C (105°F). Expect minimal precipitation, with only 1 mm (0.0 in) falling over the course of 0 days. Humidity levels remain relatively high at 70%, making it a refreshing destination to visit.
In September in Santa Margarita, the average temperature is 21°C (70°F), with maximums reaching up to 40°C (105°F) and minimums dropping as low as 7°C (46°F). This range makes it an ideal time for travelers to pack for both warm days and cooler evenings.
In Santa Margarita in September, the precipitation amount is 1 mm (0.0 in) during a span of 0 days.
In Santa Margarita in September, humidity is 70%. With an average temperature of 21°C (70°F), this humidity feels like a warm, muggy embrace, making travel slightly uncomfortable, as the air clings to your skin and can leave you feeling sticky and in need of frequent breaks to cool down.
In Santa Margarita in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Santa Margarita.
UV Risk Categories
Weather in Santa Margarita varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Santa Margarita, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 10°C (50°F) | 78 mm (3.1 inches) | 80% | moderate |
| February Weather | 10°C (51°F) | 59 mm (2.3 inches) | 83% | moderate |
| March Weather | 12°C (53°F) | 72 mm (2.9 inches) | 80% | very high |
| April Weather | 15°C (59°F) | 19 mm (0.8 inches) | 76% | very high |
| May Weather | 17°C (63°F) | 11 mm (0.4 inches) | 75% | extreme |
| June Weather | 20°C (69°F) | 0 mm (0.0 inches) | 74% | extreme |
| July Weather | 22°C (72°F) | 0 mm (0.0 inches) | 75% | extreme |
| August Weather | 22°C (72°F) | 0 mm (0.0 inches) | 72% | extreme |
| September Weather | 21°C (70°F) | 1 mm (0.0 inches) | 70% | very high |
| October Weather | 18°C (64°F) | 7 mm (0.3 inches) | 70% | high |
| November Weather | 13°C (56°F) | 25 mm (1.0 inches) | 74% | moderate |
| December Weather | 10°C (50°F) | 53 mm (2.1 inches) | 76% | moderate |