Weather forecast for todaySan Marcos, El Salvador

Weather forecast for today

Current condition 04:32 CST

  • 21°C
  • Feels like:
    21°C
Partly Cloudy
Partly Cloudy
  • Precipitation: 0mm
  • Wind: 6km/hN 350°
  • Humidity: 87%
  • Dewpoint: 18°C
  • Pressure: 1011.18mbar
  • Visibility: 16.09km
  • UV index: 0
  • ▼
At the moment, mild cloud cover is present, keeping the day bright but not completely clear.
The temperature is a pleasant 21°C. The current temperature is near the lowest predicted 20°C for today.

Thursday 12. Nov 2026

  • 30°C
  • 20°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 13km/hWNW 303°
  • Humidity: 70%
  • UV index: 11
  • Sunrise: 05:55 CST
  • Sunset: 17:26 CST
  • ▼
On Thursday, in San Marcos, a partly cloudy outlook will keep the sky interesting throughout the day.
Temperature fluctuations between a tropical 30°C and a delightful 20°C are predicted.
The maximum heat index, which measures the combined effect of heat and moisture, is appraised at a torrid 35°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
The highest temperature is predicted to follow the average for November, around 30.3°C.
Sunrise will be at 05:55 and sunset at 17:26; the daylight will last for 11h and 32min.

Hourly overview

Hourly temperatures

Warmest hour: 13h 32°C.
Coldest hour: 5h 20°C.

Chance of precipitation

Highest chance: 13h 23%.

Hourly weather forecast

Sunrise: 05:55
  • 6h
  • 20°C
  • Feels like:
    20°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 8km/hN 356°
  • Humidity: 87%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 8h
  • 24°C
  • Feels like:
    24°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 10km/hN 358°
  • Humidity: 69%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 2
  • ▼
  • 10h
  • 28°C
  • Feels like:
    29°C
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 10km/hN 6°
  • Humidity: 56%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 8
  • ▼
  • 12h
  • 30°C
  • Feels like:
    32°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 24%
  • Precipitation: 0mm
  • Wind: 9km/hNW 309°
  • Humidity: 53%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 14h
  • 29°C
  • Feels like:
    32°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0mm
  • Wind: 12km/hSW 216°
  • Humidity: 62%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 6
  • ▼
  • 16h
  • 27°C
  • Feels like:
    30°C
Sunny
Sunny
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 13km/hSSW 211°
  • Humidity: 69%
  • Pressure: 1008mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
Sunset: 17:26
  • 18h
  • 24°C
  • Feels like:
    27°C
Clear
Clear
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 7km/hSW 224°
  • Humidity: 85%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 20h
  • 23°C
  • Feels like:
    24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0mm
  • Wind: 5km/hN 355°
  • Humidity: 90%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 22°C
  • Feels like:
    24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 4km/hN 357°
  • Humidity: 92%
  • Pressure: 1011mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
Today, a combination of dull and sunny weather is anticipated.
The temperature will vary between the lowest temperature of 20°C and the highest temperature of 30°C. The hottest part of the day will be at 12h and 13h.
The forecasted high will be resembling the typical November maximum of 30.3°C. The minimum temperature will be also alike with November's average low of 19.5°C.
Updated: Nov 12, 2026 @ 10:32:53 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (04:32 CST) it is 21°C in San Marcos.

Today, in San Marcos, a mix of clouds and blue sky is expected.

Today, the maximum temperature will be 30°C, while the minimum temperature will be 20°C. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is appraised at 35°C.
The highest temperature will be in line with the average maximum of 30.3°C in November. The lowest temperature will be also in line with the average low of 19.5°C.

On Thursday, in San Marcos, sunrise will be at 05:55 and sunset at 17:26 (CST).

In San Marcos, the length of the day today will be 11h and 32min.