Last updated: August 23, 2025
In September, the average temperature in San Juan Chamelco, Guatemala hovers around 22°C (71°F), offering a comfortable climate for outdoor adventures. Expect temperatures to range from a minimum of 16°C (61°F) to a maximum of 29°C (85°F). However, don’t forget your umbrella, as precipitation averages 378 mm (14.9 in) over 29 days with an average humidity of 82%. Whether you’re exploring or relaxing, be prepared for a warm, moist atmosphere!
In September, in San Juan Chamelco, the average temperature is 22°C (71°F). Maximums can reach 29°C (85°F), while minimums can drop to as low as 16°C (61°F). This pleasant climate makes San Juan Chamelco an ideal destination for travelers looking to enjoy mild and comfortable weather.
In San Juan Chamelco in September, the total precipitation amount reaches 378 mm (14.9 in) spread over 29 days.
In San Juan Chamelco in September, humidity is 82%. With an average temperature of 22°C (71°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel laborious and sweat-dripping, urging travelers to stay hydrated and seek the shade more often.
In San Juan Chamelco 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 San Juan Chamelco.
UV Risk Categories
Weather in San Juan Chamelco varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in San Juan Chamelco, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 18°C (64°F) | 165 mm (6.5 inches) | 76% | very high |
| February Weather | 19°C (66°F) | 98 mm (3.9 inches) | 68% | extreme |
| March Weather | 19°C (67°F) | 112 mm (4.4 inches) | 59% | extreme |
| April Weather | 22°C (71°F) | 101 mm (4.0 inches) | 57% | extreme |
| May Weather | 22°C (73°F) | 252 mm (9.9 inches) | 65% | extreme |
| June Weather | 22°C (72°F) | 417 mm (16.4 inches) | 66% | extreme |
| July Weather | 21°C (71°F) | 255 mm (10.0 inches) | 75% | extreme |
| August Weather | 22°C (71°F) | 337 mm (13.3 inches) | 82% | extreme |
| September Weather | 22°C (71°F) | 378 mm (14.9 inches) | 82% | extreme |
| October Weather | 21°C (70°F) | 427 mm (16.8 inches) | 83% | extreme |
| November Weather | 19°C (67°F) | 333 mm (13.1 inches) | 80% | very high |
| December Weather | 18°C (65°F) | 151 mm (5.9 inches) | 76% | very high |