Weather in San Marcos — today, tomorrow and 14-day forecast
Weather in San Marcos now: +21°, partly cloudy, wind 0.8 m/s, humidity 90%. Accurate forecast for today, tomorrow, 3 days and 2 weeks — temperature, precipitation, pressure and wind.
Weather in San Marcos now
Hourly forecast for today in San Marcos
Weather in San Marcos tomorrow
From +20° to +29° — day and night.
Weather in San Marcos for 3 days
From +19° to +29° — day and night.
Weather in San Marcos for the week
Including the 5-day outlook.
From +19° to +31° — day and night.
Weather in San Marcos for 2 weeks
Including the 10-day outlook.
From +19° to +36° — day and night.
Weekend weather in San Marcos
Weather for the weather-sensitive
📒 Weather diary in San Marcos
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What to do in San Marcos in weather like this 🎯
The Moon today 🌙
Monthly climate 🗓️
San Marcos, Kaliforniya, United States. Population 92 931.
Precipitation map 🌧️
Cities near San Marcos 📍
Weather stations — San Marcos 📡
FAQ about weather in San Marcos ❓
What's the weather in San Marcos right now?
Now +21°, partly cloudy, wind 0.8 m/s, N-W, humidity 90%. Feels like +24°.
What's the weather in San Marcos tomorrow?
Tomorrow: +29° by day, +20° at night, partly cloudy.
Sunrise and sunset in San Marcos?
Sunrise 05:14, sunset 18:32, day length 13h 18m.
What's the pressure and humidity in San Marcos?
Pressure 760 mmHg, humidity 90%, wind 4 m/s. Matters for weather-sensitive people.
Do I need an umbrella in San Marcos today?
No, precipitation is unlikely — you can go out without an umbrella.
Will it be hot in San Marcos?
Up to +29° by day — hot. Drink more water, avoid the sun from noon to 4 PM, wear light clothes and a hat.
Do I need sunscreen in San Marcos?
Yes, the UV index is 11 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
How long is it safe to stay in the sun in San Marcos?
At UV 11, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
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Weather in San Marcos — in detail
Weather in San Marcos from “Pogoda 1” — an accurate, free forecast: current temperature, feels-like, wind, atmospheric pressure, humidity and precipitation. Available for today, tomorrow, 3, 5 and 10 days, a week, 2 weeks and a month, plus hourly weather, monthly climate, water temperature, air quality and an observation archive since 2017.
To quickly check the weather in San Marcos anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.