Los Angeles vs Las Vegas

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Las Vegas edges ahead as the better destination in September. Las Vegas offers 12 hours of daily sunshine with only 1 rain days, while Los Angeles sees 12 sunshine hours and 1 rain days.

Los Angeles can feel quite hot at 31°C, so plan for heat. Las Vegas runs hot at 34°C.

For travelers who prioritize dry weather, both cities are equally dry in September.

Los Angeles reaches an average high of 31°C (88°F) and drops to 17°C (63°F) at night during September. The daily temperature range is 14°C, meaning significant temperature swings between day and night.

Las Vegas averages 34°C (93°F) for the high and 21°C (70°F) for the low, with a daily range of 13°C. The 3°C difference is noticeable but not dramatic.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Los Angeles receives approximately 3 mm of rainfall across 1 rain days during September. Rain is rare this month, so dry conditions are likely.

Las Vegas sees 7 mm over 1 rain days. Both cities are equally rainy this month.

Humidity also differs: Los Angeles averages 70% while Las Vegas sits at 65%. Los Angeles will feel muggier, especially at higher temperatures.