San Luis, Argentina Weather

  1. San Luis, Argentina Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in San Luis over the next 12 hours
  7. Temperature and possibility of rain in San Luis in the coming days
  8. Rainfall in San Luis in the coming days
  9. San Luis Weather Summary
  10. Weather averages by month
  11. San Luis's weather
  12. Frequently asked questions
  13. Comments
San Luis, Weather
(Photo by Sasha • Stories on Unsplash)

Current conditions

Updated:
18°C
64.4°F
°C °F

Condition: Mainly Clear

Pressure: 925 hPa

Feel like: 18 °C

Temperature: 18°C

Cloud: 19%

Humidity: 80%

Wind: NNE - 13 km/h

Visibility: 24.14 km

Weather forecast

Sun
19 Apr
10°C / 18°C
Slight Thunderstorm
Mon
20 Apr
9°C / 10°C
Overcast
Tue
21 Apr
9°C / 16°C
Overcast
Wed
22 Apr
10°C / 20°C
Overcast
Thu
23 Apr
9°C / 22°C
Mainly Clear
Hourly forecast today:
12:00 PM
15° / 18°
15° / 18°
Mainly Clear
80% 24 km/h
13:00 PM
15° / 22°
15° / 22°
Mainly Clear
68% 34 km/h
14:00 PM
16° / 23°
16° / 23°
Partly Cloudy
62% 49 km/h
15:00 PM
16° / 24°
16° / 24°
Mainly Clear
58% 53 km/h
16:00 PM
15° / 25°
15° / 25°
Mainly Clear
54% 53 km/h
17:00 PM
15° / 26°
15° / 26°
Mainly Clear
51% 52 km/h
18:00 PM
15° / 26°
15° / 26°
Mainly Clear
50% 50 km/h
19:00 PM
15° / 27°
15° / 27°
Partly Cloudy
48% 46 km/h
20:00 PM
15° / 26°
15° / 26°
Mainly Clear
49% 40 km/h
21:00 PM
15° / 25°
15° / 25°
Mainly Clear
51% 34 km/h
22:00 PM
15° / 23°
15° / 23°
Mainly Clear
58% 25 km/h

30 Day Averages and Extremes

  • Average high 21.0°C
  • Average low 11.77°C
  • Hottest day 27°C (12 April 2026)
  • Coldest day 4°C (08 April 2026)
  • Average humidity 69.17%
  • Days with precipitation 19 days
  • Highest precipitation 37 mm (19 April 2026)

Yesterday's Data

  • Max: 25°C
  • Min: 15°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in San Luis over the next 12 hours

Temperature and possibility of rain in San Luis in the coming days

Rainfall in San Luis in the coming days

San Luis Climate Summary

San Luis features a Mid-latitude steppe (Köppen classification: BSk), with an average annual temperature of 19.11ºC (66.4ºF), which is about 0.87% higher than the national average for Argentina. Annually, the city experiences approximately 31.03 millimeters (1.22 inches) of rainfall, spread across 71.36 rainy days, accounting for 19.55% of the year.

Longitude -33.3017267
Latitude -66.3377522
Yearly high temperature 23.24ºC (73.83ºF)
Yearly low temperature 13.33ºC (55.99ºF)
Hottest month December 29.94ºC (85.89ºF)
Coldest month July 5.97ºC (42.75ºF)
Yearly precip 31.03mm (1.22in)
Days with rainfall 71.36 days (19.55%)
Driest month August (43.98%)
Wettest month February (50.17%)

Weather averages by month

Month High / Low (°C) Rain
January 31.24° / 20.25° 10.09 days
February 29.38° / 19.18° 10.64 days
March 26.85° / 16.4° 8.18 days
April 22.56° / 13.44° 5.64 days
May 18.67° / 10.19° 2.55 days
June 15.76° / 7.17° 0.82 days
July 14.82° / 5.97° 0.45 days
August 18.21° / 8.31° 0.45 days
September 21.02° / 10.74° 3.64 days
October 23.44° / 13.27° 8.36 days
November 26.98° / 16.34° 10.09 days
December 29.94° / 18.72° 10.45 days

San Luis's weather

Frequently asked questions

1. What is the hottest month in San Luis?

December has the highest average monthly temperature (daily mean of 29.94ºC) and July are the coolest (daily mean of 5.97ºC).

2. What should I wear in San Luis today?

For today's very hot weather in San Luis, with the high temperatures above 27ºC (80.6ºF), consider wearing:
- Sunscreen for skin protection
- Loose and airy fabrics like linen or cotton
- Thin, moisture-wicking socks
- Breathable shorts or skirts

Temperature

Early
13°C / 17°C
Morning
14°C / 16°C
Afternoon
16°C / 24°C
Evening
15°C / 25°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 439
  • CO 304
  • NH3 0
  • NO2 1
  • O3 62
  • PM10 3
  • PM25 2
  • SO2 0
  • CH4 1,381

Sunrise / Sunset

10:49
21:59