The best time to go to Debre Birhan is during the dry season, which runs from October to May, with the absolute best months being November to February.
During these months, the weather is typically sunny and pleasant, with cooler temperatures due to Debre Birhan's high altitude. This makes exploring the city and surrounding areas much more comfortable. You'll find it ideal for walking around the local markets or visiting historical sites without the interruption of heavy rain.
For those planning to explore the natural landscapes surrounding Debre Birhan, like the Ankober mountains or the Jemma Valley, the dry season offers the most accessible conditions. Roads are less muddy, and visibility for scenic views is generally excellent. This period is particularly good for nature enthusiasts and those interested in hiking or birdwatching.
If your trip includes attending local festivals, May can be a good choice, as it often coincides with religious celebrations like Leddet (Christmas, though celebrated in January) or Meskel (the finding of the True Cross, celebrated in September).