The best time to go to Ulaanbaatar is during the summer months, from June to August, when the weather is at its most pleasant.During these months, the city experiences mild and sunny days, with average temperatures ranging from 60°F to 75°F (15°C to 24°C). This period is ideal for sightseeing and outdoor activities, including exploring the Gandan Monastery, visiting the National Museum of Mongolia, or taking day trips to the nearby Gorkhi-Terelj National Park. The longer daylight hours also allow for extended exploration.Travelers looking to experience Mongolia's cultural events should consider visiting in July, as this is when the Naadam Festival takes place. This national holiday features traditional Mongolian wrestling, horse racing, and archery, offering a unique glimpse into the country's heritage. While the city becomes more crowded during this time, the festive atmosphere is a significant draw.For those who prefer fewer crowds and don't mind cooler temperatures, late May and early September can also be good options.