Last updated: August 26, 2025
The average temperature in Colonia 28 de Mayo (Santa Rosa), Mexico for the month of September is 17°C (62°F). During this time, temperatures can range from a minimum of 6°C (44°F) to a maximum of 26°C (78°F). Expect substantial precipitation, averaging 212 mm (8.3 in) over 24 days, along with an average humidity level of a high 84%.
In September in Colonia 28 de Mayo (Santa Rosa), the average temperature is 17°C (62°F). Maximum can reach 26°C (78°F) and minimum can be as low as 6°C (44°F). This mild climate makes Colonia 28 de Mayo (Santa Rosa) an ideal destination for travelers seeking comfortable weather.
In Colonia 28 de Mayo (Santa Rosa) in September, the precipitation amount is 212 mm (8.3 in) during 24 days, indicating a period of frequent rainfall.
In Colonia 28 de Mayo (Santa Rosa) in September humidity is 84%. With an average temperature of 17°C (62°F), this humidity feels like a warm blanket enveloping you, making travel both comforting and slightly stifling, as you navigate through a haze of thick, moisture-laden air.
In Colonia 28 de Mayo (Santa Rosa) in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Colonia 28 de Mayo (Santa Rosa).
UV Risk Categories
Weather in Colonia 28 de Mayo (Santa Rosa) varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Colonia 28 de Mayo (Santa Rosa), focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 11°C (53°F) | 26 mm (1.0 inches) | 88% | very high |
| February Weather | 13°C (57°F) | 25 mm (1.0 inches) | 86% | extreme |
| March Weather | 15°C (60°F) | 40 mm (1.6 inches) | 83% | extreme |
| April Weather | 17°C (63°F) | 57 mm (2.2 inches) | 80% | extreme |
| May Weather | 18°C (65°F) | 87 mm (3.4 inches) | 82% | extreme |
| June Weather | 17°C (64°F) | 187 mm (7.4 inches) | 79% | extreme |
| July Weather | 17°C (63°F) | 145 mm (5.7 inches) | 72% | extreme |
| August Weather | 17°C (63°F) | 189 mm (7.4 inches) | 74% | extreme |
| September Weather | 17°C (62°F) | 212 mm (8.3 inches) | 84% | extreme |
| October Weather | 15°C (60°F) | 163 mm (6.4 inches) | 92% | extreme |
| November Weather | 13°C (56°F) | 51 mm (2.0 inches) | 91% | very high |
| December Weather | 12°C (54°F) | 18 mm (0.7 inches) | 91% | very high |