Guatemala's Muslim presence is concentrated almost entirely in Guatemala City, where families of Palestinian origin who arrived over the twentieth century built the Al-Dawa Islamic Mosque in Zone 9 in 1996. The mosque is led today by a Guatemalan convert who trained in Medina, and its congregation is a mix of Arab families, local converts and visiting Muslims. A separate and older Ahmadiyya community, centered on the Baitul Awwal mosque built in 1989, has around 700 members spread across the capital and the highland towns of Huehuetenango and Quetzaltenango.
Guatemala City sits at nearly 14.6°N, close enough to the equator that day length barely shifts across the year — sunrise and sunset each drift by well under an hour between June and December. That makes prayer times, and the length of a Ramadan fast, far more consistent month to month than in countries at higher latitudes, even though the mosque's mountain-valley setting at over 1,500 meters gives Guatemala City cooler, more temperate weather than its tropical latitude would suggest.
Guatemala's Islamic community operates under the same regional convention used across Central America and the wider Americas, the Islamic Society of North America's angles; because the country sits so close to the equator, the resulting Fajr and Isha times stay stable across the seasons, which suits a small community without the resources to maintain a separate local calculation standard.
Estimates put the number at roughly 2,000, the large majority of Palestinian origin and living in or around Guatemala City, alongside a smaller, separate Ahmadiyya community of around 700 in the capital and the western highlands.
The Al-Dawa Islamic Mosque on Zone 9's Reforma Avenue has operated since 1996 under an imam who is himself a Guatemalan convert educated in Medina, alongside a community affairs committee that coordinates prayers and Islamic instruction.
Not by much — Guatemala City's near-equatorial latitude means daylight hours stay close to twelve year-round, so a Ramadan fast in December looks almost the same length as one in June, unlike in countries much further from the equator.
Yes — alongside the Sunni congregation at Al-Dawa, an Ahmadiyya community centered on the Baitul Awwal mosque, built in 1989, maintains its own places of worship in the capital and in Huehuetenango and Quetzaltenango.