Mariscos in December sees high daytime temperatures of 27°C (81°F) and nighttime lows of 20°C (68°F). Rainfall is fairly high this month at around 153 mm (6 in), so pack a rain jacket to stay dry.
If you favor pleasant temperatures and minimal rainfall, December is one of the best months to visit Mariscos.
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Pick a month to see the average temperature, rainfall and sunshine in Mariscos - and find the best time to visit.
47-year average (1976-2025)
Based on our historical records, temperatures in Mariscos typically stay consistent throughout December, with daily highs averaging around 27°C (81°F). Nights are pleasant, with lows around 18°C (64°F).
47-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Browse day-by-day weather records for Mariscos spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Our historical data for Mariscos spans 1996 to 2025, revealing these weather extremes.
Find out more about the weather in Guatemala and which places have the best travel conditions in this month. See all of Guatemala in December →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
Warm but pleasant conditions in Mariscos in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
See the full Mariscos climate overview or explore weather in Guatemala.
Where to go in December - average daytime high across popular destinations.
Flores
30°C (86°F) Rio Dulce Town
28°C (82°F) Guatemala City
26°C (79°F) Antigua Guatemala26°C (79°F) Cobán23°C (73°F) Panajachel22°C (72°F) Quetzaltenango22°C (72°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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