Retalhuleu in August averages 30°C (86°F) during the day and 22°C (72°F) at night. August is part of the rainy season, so frequent rainfall is typical.
August in Retalhuleu has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
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Pick a month to see the average temperature, rainfall and sunshine in Retalhuleu - and find the best time to visit.
50-year average (1976-2025)
Based on our historical records, temperatures in Retalhuleu typically stay consistent throughout August, with daily highs averaging around 30°C (86°F). Nights are warm, with lows around 22°C (72°F).
50-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 Retalhuleu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Based on 20 years of weather observations (2006-2026), these are the most extreme conditions recorded in Retalhuleu.
Find out more about the weather in Guatemala and which places have the best travel conditions in this month. See all of Guatemala in August →
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 Retalhuleu in August. 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. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity
See the full Retalhuleu climate overview or explore weather in Guatemala.
Where to go in August - average daytime high across popular destinations.
Flores
35°C (95°F) Lívingston32°C (90°F) Rio Dulce Town32°C (90°F) Guatemala City27°C (81°F) Cobán27°C (81°F) Antigua Guatemala26°C (79°F) Panajachel23°C (73°F) Quetzaltenango23°C (73°F) Need travel inspiration? Check out our bucket list articles and be inspired.
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