Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
May is one of the excellent months to visit Lake Mead, with daytime temperatures of 33°C (91°F) and lows of 18°C (64°F) at night. Rainfall is minimal, averaging just 2.8 mm (0.1 in) for the month.
Our weather planner can help you find worldwide destinations with pleasant weather during this period. February, March, April, October and November typically offer the best weather for Lake Mead.
Pick a month to see the average temperature, rainfall and sunshine in Lake Mead - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Lake Mead typically rise from around 29°C (84°F) at the start of May to approximately 34°C (93°F) by the end. Nights are pleasant, with lows typically ranging from 16°C (61°F) to 21°C (70°F).
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Lake Mead spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 50 years of weather records for Lake Mead, the following extremes were recorded between 1976 and 2026.
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Hot weather in May means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Lake Mead climate overview or explore weather in the United States of America.
Where to go in May - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
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