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San Salvador in December averages 32°C (90°F) during the day and 20°C (68°F) at night. Minimal rainfall is typical for this time of year.
So this is a great month to visit if you prefer dry days with pleasant temperatures.
Pick a month to see the average temperature, rainfall and sunshine in San Salvador - and find the best time to visit.
41-year average (1976-2025)
Based on our historical records, temperatures in San Salvador typically stay consistent throughout December, with daily highs averaging around 32°C (90°F). Nights are pleasant, with lows around 19°C (66°F).
41-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 San Salvador spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
According to our 25 years of weather records for San Salvador, the following extremes were recorded between 2000 and 2025.
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 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 temperatures in December make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full San Salvador climate overview or explore weather in El Salvador.
Where to go in December - average daytime high across popular destinations.
Need travel inspiration? Check out our bucket list articles and be inspired.
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