San Marcos
23°74°
Mostly Cloudy
Feels Like: 24°75°
Min: 19°67°
Max: 25°77°
The next few hours will be overcast, with today reaching 25°C and dropping to 20°C. The coming days will be light rain throughout the day and possible thunderstorms in the afternoon.
Want a closer look at the weather?
Premium adds minute-by-minute rain timing, yesterday comparisons, and more detail across Airpult.
Air quality is satisfactory, and air pollution poses little or no risk.
05:38
Sunrise
17:23
Sunset
07:08
Moonrise
18:10
Moonset
Today
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
See moon phases, eclipses, and seasons for this year.
View astronomySee sky darkness, moon phase, and the best viewing window for San Marcos.
View stargazing scoreWeather in San Marcos today, October 12, 2026
San Marcos starts October 12, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Morning plans should assume damp conditions, as rain chances climb toward 76% around 10:00. Cloud cover is also at its densest near 09:00 at roughly 83%.San Marcos starts October 12, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. Morning plans should assume damp conditions, as rain chances climb toward 76% around 10:00. Cloud cover is also at its densest near 09:00 at roughly 83%.
Expect highs of 25°C and cooler readings close to 19°C. Expect humidity between 74% and 98%, most humid near 21:00. Winds stay light, near 14 km/h by 09:00, so the day feels still more than breezy.Expect highs of 77°F and cooler readings close to 67°F. Expect humidity between 74% and 98%, most humid near 21:00. Winds stay light, near 9 mph by 09:00, so the day feels still more than breezy.
Expect the wet theme to continue later, as rain odds reach 94% near 13:00. Cloud amounts hold near 84% around 23:00. Visibility holds near 15.6 km, though it can fall to 8.2 km. Daylight runs from 05:38 to 17:23, lasting 11 hours 45 minutes of sunlight today.Expect the wet theme to continue later, as rain odds reach 94% near 13:00. Cloud amounts hold near 84% around 23:00. Visibility holds near 9.7 mi, though it can fall to 5.1 mi. Daylight runs from 05:38 to 17:23, lasting 11 hours 45 minutes of sunlight today.
Overall, San Marcos on October 12, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 94% and the high sits around 25°C.Overall, San Marcos on October 12, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 94% and the high sits around 77°F.
Frequently asked questions about weather in San Marcos
How warm does it get in San Marcos?
The warmest month in San Marcos is April, with average high temperatures of 34°C. The average temperature during this period is around 28°C.The warmest month in San Marcos is April, with average high temperatures of 93°F. The average temperature during this period is around 83°F.
How cold does it get in San Marcos?
The coldest month in San Marcos is January, with average low temperatures of 22°C. The average temperature during this period is around 26°C.The coldest month in San Marcos is January, with average low temperatures of 71°F. The average temperature during this period is around 79°F.
What is the wettest time of year in San Marcos?
The wettest month in San Marcos is October, with an average of 416 mm of precipitation.The wettest month in San Marcos is October, with an average of 16.4 in of precipitation.
What is the driest time of year in San Marcos?
The driest month in San Marcos is February, with an average of 3 mm of precipitation.The driest month in San Marcos is February, with an average of 0.1 in of precipitation.