Summerlin South

What is the climate like in Summerlin South?

The best time to visit Summerlin South is typically February – November, with trip comfort peaking in October (9.1/10). Summerlin South is warmest in July, when daily highs average 103°F (39°C), and coolest in January, when lows fall to about 38°F (3°C). The wettest month is typically January and the driest is June; the year sees roughly 6.4 in (161 mm) of precipitation.

• Best time to visitFebruary – November — comfort peaks in October (9.1/10)
• Warmest monthJuly — average high 103°F (39°C)
• Coolest monthJanuary — average low 38°F (3°C)
• Wettest monthJanuary (1.0 in (25 mm))
• Driest monthJune (0.1 in (3 mm))
• Annual precipitation6.4 in (161 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromMccarran Intl AP, 16 km away (1948-2026)