El Salvador · America/El_Salvador · GMT-6 · 13.69°N, 89.22°W
Weather in San Salvador — Did You Know?
·Pipil and Lenca civilizations used lunar observations for ceremonial timing.
·Central American volcanic landscape provides scenic backdrop for lunar observation.
·At San Salvador's latitude of 13.69°N, the moon reaches a maximum altitude of 90° above the horizon, creating optimal viewing opportunities during peak lunar transit positions.
About San Salvador Weather
San Salvador, at 13.7° north latitude in El Salvador, lies within the tropics and experiences a warm, humid climate throughout the year. Temperatures typically range from 24°C to 35°C (75°F–95°F) regardless of month, with rainfall — rather than temperature — defining the seasons. The major city divides its year into a wet season (May – October), driven by the Inter-Tropical Convergence Zone and monsoon circulation, and a drier period (November – April) of clearer skies and lower humidity. Even in the dry season, temperatures remain warm; the change in humidity and cloud cover is the most noticeable shift.
Daily afternoon downpours, often clearing quickly. Humidity is high and thunderstorms are frequent. Mornings are typically sunny.
Dry Season
November – April
24–32°C (75–90°F)
Predominantly sunny skies with minimal rainfall. Humidity drops noticeably, making outdoor activities more comfortable.
Data source: Live weather data is fetched from Open-Meteo — a free, open-source weather API that aggregates data from national meteorological services including NOAA (US), ECMWF (Europe), and DWD (Germany). Current conditions update every 15 minutes. Forecasts use the ECMWF IFS model. Seasonal descriptions are based on the Köppen–Geiger climate classification system derived from the latitude of San Salvador (13.69°N) and regional climate patterns.
The wet season in San Salvador (May – October) brings daily afternoon thunderstorms and heavy downpours, though mornings are typically sunny and clear. Temperatures remain warm at 26–34°C (79–93°F). Humidity climbs to 70–90%, making feels-like temperatures noticeably higher than the thermometer reading. Pack a compact umbrella and expect occasional short-term flooding on low-lying streets.
The dry season (November – April) offers the most comfortable conditions: clear skies, lower humidity, and warm temperatures of 24–32°C (75–90°F). This is the peak tourist period in San Salvador for outdoor sightseeing and activities. Accommodation tends to book out early during this window, especially over public holidays.
No — the tropical location of San Salvador at 13.7° latitude means temperatures almost never fall below 20°C (68°F), even overnight during the coolest months. Snow is impossible. The coolest period coincides with the dry season, when nights may dip to 20–22°C (68–72°F) — still warm by any global standard.
The primary weather risks in San Salvador are related to heavy rainfall: flash flooding, landslides in hilly areas, and tropical cyclones near coastlines within the cyclone belt (roughly lat 5°–20°). The city sits at 13.7° north, placing it in a zone where tropical cyclone tracks are possible during peak season.
The wet-dry cycle in San Salvador is driven by the Inter-Tropical Convergence Zone (ITCZ) — a belt of low pressure near the equator where trade winds converge and cause heavy convective rainfall. As the ITCZ migrates seasonally toward the Northern summer, it brings the wet season. When it retreats, the dry season follows. Regional monsoon systems amplify this pattern across much of Asia and West Africa.
Monsoon season in San Salvador typically occurs during June to September, bringing heavy rainfall and increased humidity. Travel plans should account for reduced visibility, potential flooding, and flight disruptions during this period.
San Salvador is potentially affected by typhoons or hurricanes during August to October. Local authorities issue seasonal warnings, and travel insurance is recommended during these high-risk periods.
Yes, San Salvador can experience significant flooding during the rainy season. Locals and visitors should avoid low-lying areas during heavy downpours and follow official flood advisories. Urban drainage systems are designed but can be overwhelmed during intense rainfall.
Air quality in San Salvador is best during the dry season and more challenging during the wet season due to humidity and atmospheric moisture. Seek air quality forecasts when planning outdoor activities.
Pack light, breathable clothing, waterproof rain gear, quick-dry fabrics, and sturdy waterproof shoes for tropical climates. Sun protection (hat, sunscreen, sunglasses) is essential year-round due to strong UV rays near the equator.