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San Miguel Weather in August
San Miguel in August averages 34°C (93°F) during the day and 23°C (73°F) at night. August is part of the rainy season, so frequent rainfall is typical.
Rainfall in San Miguel in August
As part of the rainy season, San Miguel sees around 23 days of rain in August, with an average of 257 mm (10 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in San Miguel in August
In August, San Miguel gets very high temperatures, with highs of 34°C (93°F). Nights cool to around 23°C (73°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights are warm at 23°C (73°F). It's worth making sure your accommodation has decent ventilation or air conditioning.August in San Miguel has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.
San Miguel Temperature in August
Min Temperature
23°C (73°F)
Max Temperature
34°C (93°F)
Chance of Rain
75%
Precipitation
257 mm (10 in)
Rainy days
23 days
Humidity
76%
San Miguel Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Miguel - and find the best time to visit.
Daily Historical Temperatures
38-year average (1983-2025)
Based on our historical records, temperatures in San Miguel typically stay consistent throughout August, with daily highs averaging around 34°C (93°F). Nights are warm, with lows around 25°C (77°F).
Average temperatures in August
Historical weather records for San Miguel in August
Browse day-by-day weather records for San Miguel spanning 46 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Miguel historical weather extremes in August
Our historical data for San Miguel spans 2000 to 2026, revealing these weather extremes.
- The hottest August day on record in San Miguel reached 41°C (106°F) (August 27, 2026).
- The coldest August day was on August 24, 2023, with a maximum of 27°C (81°F).
- San Miguel registered its coldest August night on August 31, 2017, with temperatures dropping to 20°C (68°F).
Best Places in El Salvador in August
Find out more about the weather in El Salvador and which places have the best travel conditions in this month. See all of El Salvador in August →
perfect weather
pleasant
tolerable
unpleasant
poor
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).
What to Wear in San Miguel in August
Pack for serious heat in San Miguel in August. Prioritize clothing that breathes and doesn't cling or stick. Lightweight cotton, linen, and moisture-wicking fabrics are ideal. A wide hat provides welcome shade. It's going to pour! Pack a good poncho and prepare for very wet conditions.
What To Do in San Miguel in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
San Miguel 3-Day Forecast
More climate data for San Miguel
See the full San Miguel climate overview or explore weather in El Salvador.
Popular in August
Where to go in August - average daytime high across popular destinations.
San Miguel
34°C (93°F) El Cuco32°C (90°F) Santa Ana32°C (90°F) San Salvador32°C (90°F) El Zonte30°C (86°F) Concepción de Ataco30°C (86°F) La Libertad30°C (86°F) El Sunzal30°C (86°F) Bucket list
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