Climate almanac
San Sebastián
San Vicente Department, El Salvador · 13.73°, -88.83°
What is the climate like in San Sebastián?
The best time to visit San Sebastián is typically December – March, with trip comfort peaking in January (9.0/10). San Sebastián is warmest in March, when daily highs average 96°F (35°C), and coolest in January, when lows fall to about 69°F (21°C). The wettest month is typically June and the driest is January; the year sees roughly 68 in (1725 mm) of precipitation.
- Best time to visitDecember – March — comfort peaks in January (9.0/10)
- Warmest monthMarch — average high 96°F (35°C)
- Coolest monthJanuary — average low 69°F (21°C)
- Wettest monthJune (14 in (350 mm))
- Driest monthJanuary (0.1 in (3 mm))
- Annual precipitation68 in (1725 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromSan Salvador/ilopan, 31 km away (1957-2025)