San Salvador weather in December
December in San Salvador: hot, dry, with clean air — one of the best months to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#2 of 12 months in San Salvador · #311 of 1413 destinations to visit in December · comfort 85/100 (tier A)
- Days
- 30°C
- Nights
- 19°C
- Wet days
- 3
- Sun
- 10.2 h
- Humidity
- 67%
- Daylight
- 11 h

Traveller notes on San Salvador in December
Forum posters describe December as one of the nicest months to visit El Salvador - the rainy season has ended by this point, but the countryside stays lush and green, and temperatures run genuinely pleasant. Posters generally name November as the start of the dry season here, with excellent weather building through the following months, positioning December squarely within that favorable stretch. Given the limited detailed trip reports specific to San Salvador the city, this broader country-level dry-season framing - green scenery without the rain, comfortably warm days - is the most useful guide available for a December visit.
Other months in San Salvador
Forum posters describe El Salvador's rainy season, running roughly May through November, as bringing humid conditions with rain that typically falls in the late evening or overnight rather than disrupting the daytime. Posters are consistent that at worst a visit sees a couple of hours of evening rain, with days themselves staying at minimum dry, often sunny and pleasant. Posters do note that November through April or May generally draws praise as the better overall weather window for an El Salvador trip. Posters generally rate June as warm, humid and genuinely rain-affected for San Salvador, but with the rain concentrated enough in the evenings that daytime plans typically go untouched.
Add your own note from San Salvador's card on the map.
San Salvador climate normals — December
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in San Salvador in December
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Busyschool holidays in 3 of the markets that fill it, one of its best months for weather(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for San Salvador's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherSan Salvador's weather peaks December–February, best around January.
Best weatherFair weatherToughest weather
What's on in San Salvador in December
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Dry season
1 Nov – 15 Apr · usuallyThe rains stop outright and the volcanoes around the valley come back into view. It is also when the fields burn ahead of planting and the haze settles over the city in the afternoons.
Nearby, and something's on
Within 300 km of San Salvador — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is San Salvador?
San Salvador in December — FAQ
- Is December a good time to visit San Salvador?
- December in San Salvador: hot, dry, with clean air — one of the best months to visit. It ranks #2 of 12 months for San Salvador on SeasonMap's comfort score (85/100).
- What is the weather like in San Salvador in December?
- In December, San Salvador averages a daily high of 30.2°C and a low of 19°C, with about 11.9 mm of rain over roughly 2.6 rainy days.
- What is the air quality in San Salvador in December?
- San Salvador has a mean US Air Quality Index of about 37 in December.
Within 300 km: Antigua Guatemala's Quema del Diablo on 7 Dec, and Lake Atitlán's Santo Tomas at Chichicastenango on 13–21 Dec.