Last updated: August 27, 2025
In September, the average temperature in San Mateo Nejapam, Mexico hovers around 22°C (72°F). Expect a comfortable minimum of 15°C (59°F) and highs reaching up to 31°C (88°F). However, be prepared for some rain, as the area receives approximately 249 mm (9.8 in) of precipitation over 25 days. With an average humidity level of 82%, it's a good idea to keep things light and breezy!
In September in San Mateo Nejapam, the average temperature is 22°C (72°F). Maximums can reach 31°C (88°F), while minimums can drop as low as 15°C (59°F). This pleasant climate makes San Mateo Nejapam an ideal destination for travelers seeking a comfortable getaway during this time.
In San Mateo Nejapam in September, the total precipitation amount is 249 mm (9.8 in) occurring over the course of 25 days.
In San Mateo Nejapam in September humidity is 82%. With an average temperature of 22°C (72°F), this humidity feels like walking through a warm, damp blanket, making travel feel more exhausting and sticky as sweat clings to your skin, and every step seems to draw you into a slow, sultry embrace.
In San Mateo Nejapam 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 Mateo Nejapam, you can check here.
UV Risk Categories
Weather in San Mateo Nejapam varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Mateo Nejapam, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 20°C (69°F) | 4 mm (0.1 inches) | 65% | very high |
| February Weather | 22°C (72°F) | 3 mm (0.1 inches) | 61% | extreme |
| March Weather | 24°C (75°F) | 5 mm (0.2 inches) | 59% | extreme |
| April Weather | 25°C (77°F) | 12 mm (0.5 inches) | 62% | extreme |
| May Weather | 25°C (78°F) | 58 mm (2.3 inches) | 73% | extreme |
| June Weather | 23°C (74°F) | 192 mm (7.6 inches) | 78% | extreme |
| July Weather | 23°C (73°F) | 142 mm (5.6 inches) | 79% | extreme |
| August Weather | 22°C (73°F) | 198 mm (7.8 inches) | 82% | extreme |
| September Weather | 22°C (72°F) | 249 mm (9.8 inches) | 82% | extreme |
| October Weather | 22°C (72°F) | 98 mm (3.8 inches) | 79% | extreme |
| November Weather | 21°C (71°F) | 14 mm (0.5 inches) | 72% | very high |
| December Weather | 21°C (69°F) | 3 mm (0.1 inches) | 70% | very high |