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Weather in Santiago del Estero - 14-day forecast

Detailed weather forecast for Santiago del Estero, Argentina: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Santiago del Estero
today☀️ 21°night 15°
Sun☁️ 15°💧 4.1 mm
Mon☀️ 19°💧 6.5 mm
Tue☀️ 22°💧 3.1 mm
Wed☀️ 24°💧 0.8 mm
Thu☀️ 24°night 23°
Fri🌧️ 21°💧 11.3 mm
Sat🌧️ 11°💧 0.2 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Sunday 6 Sept in Santiago del Estero, the forecast high is 15°C. Typical daytime temperatures at this time of year range from 24°C to 33°C, so it will be exceptionally cool. It is cooler than 97% of similar days.

21°Ccooler than usual
usually 24°C–33°C
cooler than 88% of similar days
night: warmer than usual rain: typical rainfall wind: exceptionally strong
15°Cexceptionally cool
usually 24°C–33°C
cooler than 97% of similar days
night: near normal rain: exceptionally wet wind: exceptionally strong
19°Cexceptionally cool
usually 24°C–33°C
cooler than 94% of similar days
night: warmer than usual rain: exceptionally wet wind: exceptionally strong
22°Ccooler than usual
usually 24°C–33°C
cooler than 88% of similar days
night: exceptionally warm rain: exceptionally wet wind: stronger than usual
24°Ccooler than usual
usually 24°C–33°C
cooler than 84% of similar days
night: exceptionally warm rain: exceptionally wet wind: typical
24°Ccooler than usual
usually 24°C–33°C
cooler than 84% of similar days
night: exceptionally warm rain: typical rainfall wind: typical
21°Cexceptionally cool
usually 25°C–33°C
cooler than 93% of similar days
night: warmer than usual rain: exceptionally wet wind: exceptionally strong

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
15°28°40° 1981: 30°C1982: 31°C1983: 23°C1984: 30°C1985: 31°C1986: 34°C1987: 29°C1988: 30°C1989: 25°C1990: 30°C1991: 28°C1992: 27°C1993: 29°C1994: 28°C1995: 34°C1996: 26°C1997: 32°C1998: 29°C1999: 30°C2000: 33°C2001: 26°C2002: 28°C2003: 27°C2004: 28°C2005: 26°C2006: 29°C2007: 33°C2008: 25°C2009: 26°C2010: 30°C2011: 27°C2012: 27°C2013: 37°C2014: 30°C2015: 28°C2016: 28°C2017: 26°C2018: 34°C2019: 25°C2020: 28°C2021: 27°C2022: 28°C2023: 30°C2024: 32°C2025: 27°C 2026 forecast: 21°C current forecast 21°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 29°C by day. The coolest year was 1983 (23°C) and the warmest was 2013 (37°C). The current forecast averages 21°C - lower than in 100% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Santiago del Estero

Santiago del Estero - 14-day weather forecast infographic

Day-by-day forecast for Santiago del Estero

Saturday5 September 2026
☀️21°clear sky
sunrise 07:27 · sunset 19:05 · night 15° · evening 19° · humidity 23% · wind 8 m/s · clouds 1%
Sunday6 September 2026
☁️15°broken clouds
sunrise 07:25 · sunset 19:06 · night 11° · evening 14° · rain 4.11 mm · humidity 23% · wind 6 m/s · clouds 83%
Monday7 September 2026
☀️19°clear sky
sunrise 07:24 · sunset 19:06 · night 14° · evening 19° · rain 6.54 mm · humidity 27% · wind 7 m/s · clouds 2%
Tuesday8 September 2026
☀️22°clear sky
sunrise 07:23 · sunset 19:07 · night 21° · evening 27° · rain 3.09 mm · humidity 26% · wind 5 m/s · clouds 25%
Wednesday9 September 2026
☀️24°clear sky
sunrise 07:22 · sunset 19:07 · night 21° · evening 27° · rain 0.78 mm · humidity 32% · wind 4 m/s · clouds 1%
Thursday10 September 2026
☀️24°clear sky
sunrise 07:21 · sunset 19:08 · night 23° · evening 28° · humidity 36% · wind 4 m/s · clouds 19%
Friday11 September 2026
🌧️21°moderate rain
sunrise 07:20 · sunset 19:08 · night 15° · evening 17° · rain 11.34 mm · humidity 62% · wind 10 m/s · clouds 99%
Saturday12 September 2026
🌧️11°light rain
sunrise 07:19 · sunset 19:09 · night 11° · evening 14° · rain 0.18 mm · humidity 62% · wind 6 m/s · clouds 100%
Sunday13 September 2026
🌤️16°a few clouds
sunrise 07:17 · sunset 19:09 · night 14° · evening 19° · rain 4.5 mm · humidity 28% · wind 6 m/s · clouds 18%
Monday14 September 2026
☀️17°clear sky
sunrise 07:16 · sunset 19:09 · night 16° · evening 21° · rain 3.81 mm · humidity 31% · wind 5 m/s · clouds 12%
Tuesday15 September 2026
🌤️21°scattered clouds
sunrise 07:15 · sunset 19:10 · night 19° · evening 24° · humidity 31% · wind 5 m/s · clouds 28%
Wednesday16 September 2026
☁️23°overcast clouds
sunrise 07:14 · sunset 19:10 · night 21° · evening 26° · humidity 32% · wind 5 m/s · clouds 100%
Thursday17 September 2026
☀️25°clear sky
sunrise 07:13 · sunset 19:11 · night 24° · evening 29° · humidity 32% · wind 3 m/s · clouds 9%
Friday18 September 2026
☁️27°overcast clouds
sunrise 07:12 · sunset 19:11 · night 24° · evening 29° · humidity 34% · wind 4 m/s · clouds 94%
Saturday19 September 2026
☁️28°overcast clouds
sunrise 07:10 · sunset 19:12 · night 26° · evening 31° · humidity 44% · wind 3 m/s · clouds 100%

UV index in Santiago del Estero - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTSantiago del Estero03681111+6.9UV HIGHtoday, daily maxSPF 30-50, a hat and sunglasses are a must. Betterstay in shade between 11:00 and 15:00.Unprotected fair skin may burn in about 30 min7Sat5.097Sun6.097Mon7.097Tue8.097Wed9.097Thu10.096Fri11.094Sat12.097Sun13.097Mon14.097Tue15.097Wed16.097Thu17.098Fri18.098Sat19.098Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Santiago del Estero is 7 (high) - unprotected fair skin can burn in about 30 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

Air quality and smog in Santiago del Estero

Air quality in Santiago del Estero is currently good. Fine particulate PM2.5: 21.8 µg/m³, PM10: 22.6 µg/m³.
CityPM2.5 (µg/m³)PM10 (µg/m³)Air quality
Santiago del Estero21.822.6good
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-04, 22:00).
Upcoming public holidays in Argentina: Day of Respect for Cultural Diversity — 12 October · National Sovereignty Day — 23 November · Immaculate Conception Day — 8 December.

Nearby and related places

San Miguel de TucumánResistenciaCorrientesParanaFormosaBahía BlancaBuenos Aires

FAQ - Santiago del Estero weather

What is the weather like in Santiago del Estero today?
Today it is about 21° during the day and 15° at night, clear sky.
How far ahead can I check the forecast for Santiago del Estero?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.