Weather forecast for todaySan Marcos, El Salvador

Weather forecast for today

Current condition 00:38 CST

  • 21°C
  • Feels like:
    21°C
Partly Cloudy
Partly Cloudy
  • Precipitation: 0mm
  • Wind: 8km/hN 10°
  • Humidity: 83%
  • Dewpoint: 18°C
  • Pressure: 1012.87mbar
  • Visibility: 16.09km
  • UV index: 0
  • ▼
Currently, in San Marcos, the sky is covered by scattered clouds with bright spots in between.
The temperature is an agreeable 21°C. The current temperature is near the lowest predicted 19°C for today.

Wednesday 11. Nov 2026

  • 30°C
  • 19°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 23%
  • Precipitation: 0mm
  • Wind: 12km/hWNW 298°
  • Humidity: 64%
  • UV index: 11
  • Sunrise: 05:54 CST
  • Sunset: 17:26 CST
  • ▼
On Wednesday, in San Marcos, a crisp, sunny atmosphere is likely.
The maximum predicted temperature is a blazing 30°C, while the minimum temperature will be a comfortable 19°C.
The maximum heat index, which modifies the air temperature to account for humidity, is assessed at a blazing 34°C. Note that heat index values are valued for light wind and location in the shade.
The anticipated high temperature will align with November's average of 30.3°C.
Sunrise will be at 05:54 and sunset at 17:26; the daylight will last for 11h and 32min.

Hourly overview

Hourly temperatures

Warmest hour: 13h 31°C.
Coldest hour: 4h 20°C.

Chance of precipitation

Highest chance: 13h 23%.

Hourly weather forecast

  • 2h
  • 20°C
  • Feels like:
    20°C
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 8km/hN 6°
  • Humidity: 85%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 4h
  • 20°C
  • Feels like:
    20°C
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 8km/hN 354°
  • Humidity: 87%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunrise: 05:54
  • 6h
  • 20°C
  • Feels like:
    20°C
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 9km/hN 352°
  • Humidity: 88%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 8h
  • 24°C
  • Feels like:
    24°C
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 10km/hN 353°
  • Humidity: 69%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 2
  • ▼
  • 10h
  • 27°C
  • Feels like:
    29°C
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0mm
  • Wind: 10km/hN 11°
  • Humidity: 55%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 8
  • ▼
  • 12h
  • 29°C
  • Feels like:
    31°C
Sunny
Sunny
  • Precip. probability: 14%
  • Precipitation: 0mm
  • Wind: 9km/hNNW 345°
  • Humidity: 51%
  • Pressure: 1011mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 14h
  • 29°C
  • Feels like:
    31°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 19%
  • Precipitation: 0mm
  • Wind: 11km/hSW 222°
  • Humidity: 58%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 6
  • ▼
  • 16h
  • 27°C
  • Feels like:
    29°C
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 12km/hSW 227°
  • Humidity: 66%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 1
  • ▼
Sunset: 17:26
  • 18h
  • 24°C
  • Feels like:
    25°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0mm
  • Wind: 8km/hWSW 240°
  • Humidity: 84%
  • Pressure: 1010mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 20h
  • 23°C
  • Feels like:
    24°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0mm
  • Wind: 7km/hNNW 330°
  • Humidity: 86%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
  • 22h
  • 22°C
  • Feels like:
    23°C
Mostly Clear
Mostly Clear
  • Precip. probability: 5%
  • Precipitation: 0mm
  • Wind: 7km/hN 351°
  • Humidity: 87%
  • Pressure: 1012mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Today, in San Marcos, a combination of dry and sunny and cloudy weather is predicted.
The temperature will vary between the lowest temperature of 19°C and the highest temperature of 29°C. The hottest part of the day will be from 11h to 14h.
The forecasted high will be alike with the typical November maximum of 30.3°C. The night temperature will be also in line with the standard November low of 19.5°C.
Updated: Nov 11, 2026 @ 06:38:07 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (00:38 CST) it is 21°C in San Marcos.

On Wednesday, in San Marcos, sunshine will take center stage, with just faint traces of clouds.

Today, the highest temperature will be 30°C, while the lowest temperature will be 19°C. The maximum heat index, which measures the combined effect of heat and moisture, is estimated at 34°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 Wednesday, in San Marcos, sunrise will be at 05:54 and sunset at 17:26 (CST).

In San Marcos, today, there will be 11h and 32min of daylight.