Average Temperatures in Guatemala by Altitude

Guatemala’s climate varies sharply with elevation:

• Lowlands (coast, Petén) – Avg 25°C (77°F).
• Highlands (central/western) – Avg 15°C (59°F).
• Tajumulco Volcano summit (4,220 m) – Avg ~0°C (32°F).

Pack layers; temperatures can swing daily, especially in the mountains.