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Weather in San Luis

Live weather forecast for San Luis, Argentina: current temperature, feels-like, wind, humidity, 48-hour hourly chart, 16-day outlook, air quality, UV and sunrise/sunset.

Current weather

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Hourly forecast (48 h)

16-day forecast

Climate & monthly averages

Average temperature and rainfall in San Luis by month (1991–2020 reference, ERA5 reanalysis).

25°24°21°18°14°11°11°14°16°19°23°25°Jan88Feb57Mar72Apr42May19Jun6Jul6Aug3Sep13Oct28Nov67Dec47
Warmest monthJan · 25°C / 77°F
Coldest monthJun · 11°C / 51°F
Wettest monthJan · 88 mm
Annual avg temp18°C / 65°F
Annual rainfall448 mm

About San Luis

Population169,947
Coordinates-33.291, -66.325
Time zoneAmerica/Argentina/San_Luis

Live weather forecast for San Luis

This page shows a live weather forecast for San Luis, Argentina, updated on every visit. You get the current temperature and how it feels, wind, humidity and pressure, an hourly chart for the next 48 hours, and a 16-day daily outlook with highs, lows and the chance of precipitation.

We also surface air quality (European AQI, PM2.5 and PM10), the UV index, sunrise and sunset times, and — for coastal locations — a short marine outlook. All data comes from Open-Meteo's open weather APIs and is free to use.

On average, the warmest month in San Luis is Jan (25°C) and the coldest is Jun (11°C). The wettest month is Jan (about 88 mm of rainfall), while Aug is the driest. The annual average temperature is around 18.2°C, with roughly 448 mm of precipitation per year.

FAQ

How accurate is this forecast?

Forecasts use Open-Meteo, which blends leading national weather models (such as ECMWF, GFS and ICON). Hourly accuracy is high for the next 1–3 days and decreases further out, as with any forecast.

How often does the weather update?

The forecast is fetched live from the weather API each time you open the page, so you always see the latest available model run.

Can I switch between °C and °F?

Yes — use the °C / °F toggle above the current conditions. Your choice is remembered on this device.