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San Miguel Weather in December
San Miguel in December sees very high temperatures, with highs around 34°C (93°F) and overnight lows of 21°C (70°F). With just 6.1 mm (0.2 in) of rainfall on average, rain is rarely an issue.
Rainfall in San Miguel in December
You can expect rain on around 5 days based on historical patterns, with 6.1 mm (0.2 in) average for the month. The occasional light shower is possible, but rain is rarely an issue this month.
Temperature in San Miguel in December
San Miguel in December gets highs of 34°C (93°F) during the day and drops to 21°C (70°F) at night. Mornings and evenings are often more comfortable than the peak afternoon hours. With lows of 21°C (70°F), the nights are warm and generally comfortable.December in San Miguel 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.
San Miguel Temperature in December
Min Temperature
21°C (70°F)
Max Temperature
34°C (93°F)
Chance of Rain
15%
Precipitation
6.1 mm (0.2 in)
Rainy days
5 days
Humidity
65%
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
37-year average (1983-2025)
Based on our historical records, temperatures in San Miguel typically stay consistent throughout December, with daily highs averaging around 34°C (93°F). Nights are warm, with lows around 23°C (73°F).
Average temperatures in December
Historical weather records for San Miguel in December
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 December
Based on 25 years of weather observations in San Miguel between 2000 and 2025, these are the recorded extremes.
- On December 23, 2002, temperatures climbed to 38°C (100°F), marking the warmest December day on record.
- The lowest daytime temperature in December was 26°C (79°F), recorded on December 21, 2009.
- The coldest night in December in San Miguel was on December 18, 2010, with a minimum of 16°C (61°F).
Best Places in El Salvador in December
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 December →
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 December
Get ready for hot weather in December! Lightweight, breathable fabrics are your best friend during this month. Cotton and linen shirts, shorts, sundresses, and sandals will keep you comfortable. Light colors help reflect the heat, avoid wearing black. Almost no rain is expected, so no need to bring rain gear.
What To Do in San Miguel in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling8/10 -
Walking8/10 -
Camping10/10 -
Outdoor sports8/10
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 December
Where to go in December - average daytime high across popular destinations.
San Miguel
34°C (93°F) San Salvador
32°C (90°F) El Cuco32°C (90°F) El Zonte31°C (88°F) Santa Ana31°C (88°F) Concepción de Ataco30°C (86°F) La Libertad31°C (88°F) El Sunzal31°C (88°F) Bucket list
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