The best time to visit Heby, Uppsala County, Sweden, is during the summer months, from June to August, when the weather is at its most pleasant.During this period, you can expect long daylight hours and mild temperatures, making it ideal for outdoor activities like exploring the surrounding countryside, visiting local farms, or enjoying the many lakes in the area. This is also when many local events and markets are held, offering a chance to experience Swedish culture.For those interested in fishing or hiking, early autumn in September can also be a good option. The temperatures are still comfortable, and the landscape begins to show beautiful autumnal colours, providing a scenic backdrop for outdoor adventures.