December, January, February are the coolest months of the year, with temperature in Las Vegas during winter months at +8 to +15C. Evenings are usually cooler.
Spring is the best time to visit Las Vegas: March temperatures are +18 +25C. It gets warmer in April and May, with temperatures going to +30 +35C.
If you don't plan to spend too much time outside, there is no problem in visiting Las Vegas during the summer months. But if you plan some outdoor activities, please keep in mind that the temperature goes as high as +40C in June, July and August .
September is still hot, +35C, but it is cooler during the evenings. October and November are good months for a visit, with average temperatures at +25 +28C.
Please check the forecast before you go and pay special attention to the “feels like’ part.
| Average temperature, °C | Rainfall, mm | |
|---|---|---|
| Weather in Las Vegas in January | 14.4 | 13.7 |
| Weather in Las Vegas in February | 16.9 | 19.3 |
| Weather in Las Vegas in March | 21.3 | 11.2 |
| Weather in Las Vegas in April | 25.7 | 3.8 |
| Weather in Las Vegas in May | 31.6 | 3 |
| Weather in Las Vegas in June | 37.1 | 1.8 |
| Weather in Las Vegas in July | 40.1 | 10.2 |
| Weather in Las Vegas in August | 38.9 | 8.4 |
| Weather in Las Vegas in September | 34.4 | 6.4 |
| Weather in Las Vegas in October | 27 | 6.9 |
| Weather in Las Vegas in November | 19.1 | 9.1 |
| Weather in Las Vegas in December | 13.7 | 12.7 |
