San Salvador Weather in December
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.
Rainfall in San Salvador in December
Climate statistics over the past 30 years suggest around 5 days of rain, with 9.8 mm (0.4 in) average for the month. Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in San Salvador in December
December in San Salvador is generally perfect, with days reaching 32°C (90°F) and nights settling around 20°C (68°F). For most visitors, the main thing to prepare for is the heat during the day. Nights remain mild at 20°C (68°F), making evenings a pleasant time to be outdoors.
Sunshine in San Salvador in December
Expect a lot of sunshine this month, with about 292 hours of sun. These sunny conditions add to the overall experience.
Wind Speed in San Salvador in December
Average wind speeds reach 3 m/s (6 knots) in December, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.So this is a great month to visit if you prefer dry days with pleasant temperatures.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit El Salvador, check out our San Salvador's climate page.
San Salvador Temperature in December
Min Temperature
20°C (68°F)
Max Temperature
32°C (90°F)
Chance of Rain
16%
Precipitation
9.8 mm (0.4 in)
Rainy days
5 days
Humidity
72%
Windspeed
3 m/s (6 knots)
Sunshine
292 hours
Percentage Sunshine
Daily Historical Temperatures
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).
Average temperatures in December
Daily Historical Precipitation
41-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for San Salvador in December
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.
San Salvador historical weather extremes in December
According to our 25 years of weather records for San Salvador, the following extremes were recorded between 2000 and 2025.
- The warmest day in December was on December 6, 2001, with a maximum of 36°C (97°F).
- The coldest December day was on December 31, 2000, with a maximum of 18°C (64°F).
- San Salvador registered its coldest December night on December 15, 2010, with temperatures dropping to 13°C (55°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
What to Wear in San Salvador in December
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.What To Do in San Salvador in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit El Salvador, check out our San Salvador's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full San Salvador climate overview or explore weather in El Salvador.
