Weather forecast for todaySan Marcos, Peru

Weather forecast for today

Current condition 03:22 -05

  • 13°C
  • Feels like:
    13°C
Mostly Cloudy
Mostly Cloudy
  • Precipitation: 0mm
  • Wind: 5km/hNNE 20°
  • Humidity: 90%
  • Dewpoint: 12°C
  • Pressure: 1013.88mbar
  • Visibility: 8.05km
  • UV index: 0
  • ▼
At the moment, in San Marcos, skies are mostly clouded, with occasional thinner patches.
The temperature is a refreshing 13°C. The current temperature is near the lowest expected 14°C for today.

Sunday 18. Oct 2026

  • 25°C
  • 14°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 31%
  • Precipitation: 3mm
  • Wind: 11km/hENE 73°
  • Humidity: 65%
  • UV index: 11
  • Sunrise: 05:49 -05
  • Sunset: 18:06 -05
  • ▼
Today, expect widely scattered thunderstorms throughout the region.
Minimal precipitation is forecasted. Temperatures will oscillate between a warm 25°C at their highest and a refreshing 14°C at their lowest.
The expected high for the day will be significantly higher than the average high in October of 15.5°C.
Sunrise will be at 05:49 and sunset at 18:06; the daylight will last for 12h and 17min.

Hourly overview

Hourly temperatures

Warmest period: 12h - 14h 24°C.
Coldest period: 4h - 6h 13°C.

Chance of precipitation

Highest chance: 22h 46%.

Hourly weather forecast

  • 4h
  • 13°C
  • Feels like:
    13°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 4km/hNNE 27°
  • Humidity: 90%
  • Pressure: 1014mbar
  • Visibility: 7km
  • UV index: 0
  • ▼
Sunrise: 05:49
  • 6h
  • 13°C
  • Feels like:
    13°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0mm
  • Wind: 4km/hENE 58°
  • Humidity: 90%
  • Pressure: 1015mbar
  • Visibility: 8km
  • UV index: 0
  • ▼
  • 8h
  • 17°C
  • Feels like:
    17°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0mm
  • Wind: 5km/hSE 126°
  • Humidity: 75%
  • Pressure: 1015mbar
  • Visibility: 16km
  • UV index: 3
  • ▼
  • 10h
  • 21°C
  • Feels like:
    21°C
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0mm
  • Wind: 9km/hSE 125°
  • Humidity: 57%
  • Pressure: 1013mbar
  • Visibility: 16km
  • UV index: 11
  • ▼
  • 12h
  • 24°C
  • Feels like:
    24°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0mm
  • Wind: 11km/hESE 105°
  • Humidity: 45%
  • Pressure: 1009mbar
  • Visibility: 15km
  • UV index: 11
  • ▼
  • 14h
  • 24°C
  • Feels like:
    24°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0mm
  • Wind: 11km/hENE 76°
  • Humidity: 43%
  • Pressure: 1006mbar
  • Visibility: 15km
  • UV index: 7
  • ▼
  • 16h
  • 23°C
  • Feels like:
    23°C
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 32%
  • Precipitation: 1mm
  • Wind: 10km/hNNW 343°
  • Humidity: 52%
  • Pressure: 1007mbar
  • Visibility: 14km
  • UV index: 2
  • ▼
  • 18h
  • 21°C
  • Feels like:
    21°C
Few Showers
Few Showers
  • Precip. probability: 31%
  • Precipitation: 1mm
  • Wind: 9km/hNNW 326°
  • Humidity: 65%
  • Pressure: 1009mbar
  • Visibility: 16km
  • UV index: 0
  • ▼
Sunset: 18:06
  • 20h
  • 18°C
  • Feels like:
    18°C
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 23%
  • Precipitation: 0mm
  • Wind: 5km/hWSW 253°
  • Humidity: 76%
  • Pressure: 1012mbar
  • Visibility: 15km
  • UV index: 0
  • ▼
  • 22h
  • 17°C
  • Feels like:
    17°C
Showers
Showers
  • Precip. probability: 46%
  • Precipitation: 1mm
  • Wind: 4km/hE 101°
  • Humidity: 84%
  • Pressure: 1014mbar
  • Visibility: 9km
  • UV index: 0
  • ▼
Today, in San Marcos, a combination of primarily overcast and occasionally rainy and turbulent weather is predicted.
With minimal precipitation of 1mm, rain is anticipated at 15h, 16h, 18h, and from 21h to 23h.
The temperature will be between the highest temperature of 24°C and the lowest temperature of 13°C. The warmest part of the day will be from 12h to 15h.
The maximum temperature will be significantly higher than October's average high of 15.5°C. The lowest temperature is expected to be also uncommonly higher than the typical October minimum of 7°C.
Updated: Oct 18, 2026 @ 08:22:19 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Currently (03:22 -05) it is 13°C in San Marcos.

Today, unstable conditions may trigger brief thunderstorms.

Today, there is a low chance of minimal precipitation in San Marcos.

Today, the highest temperature will be 25°C, while the lowest temperature will be 14°C.
Today, the maximum temperature will be uncommonly higher than the average highest temperature of 15.5°C in October. Today, the lowest temperature will be also notably higher than the average low of 7°C.

On Sunday, in San Marcos, sunrise will be at 05:49 and sunset at 18:06 (-05).

In San Marcos, today, there will be 12h and 17min of daylight.