San Marcos

Current Weather

25°77°

Mostly Clear

Feels Like: 25°77°

Min: 25°77°

Max: 25°78°

The next few hours will be mostly clear, with today reaching 25°C and dropping to 25°C. The coming days will be drizzle

Hourly Forecast
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Air Quality
21
Good

Air quality is satisfactory, and air pollution poses little or no risk.

GoodHazardous
Daylight Hours

07:15

Sunrise

18:49

Sunset

11 hours 33 minutes of sunlight today
Moon

07:59

Moonrise

19:25

Moonset

Daily Forecast

Today

25°77°
25°78°

Monday

25°77°
25°77°

Tuesday

25°76°
25°77°

Wednesday

24°76°
25°77°

Thursday

24°75°
24°76°

Friday

24°76°
25°77°

Saturday

24°76°
25°77°

Sunday

23°74°
25°77°

Monday

23°73°
30°86°

Tuesday

24°75°
30°87°
UV Index
No protection needed
0Low
LowExtreme
Humidity
88%Humid
LowHigh
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Weather in San Marcos today, October 11, 2026

San Marcos sees a largely clear day on October 11, 2026, interrupted by cloudier skies around 20:00. Plan for bright conditions either side of that cloudier interval. The opening hours look fair, as cloud stays near 40% around 05:00. Morning errands should face fewer weather interruptions.San Marcos sees a largely clear day on October 11, 2026, interrupted by cloudier skies around 20:00. Plan for bright conditions either side of that cloudier interval. The opening hours look fair, as cloud stays near 40% around 05:00. Morning errands should face fewer weather interruptions.

Temperatures climb from an overnight low near 25°C toward a daytime high of about 25°C. The air stays humid, with relative humidity between 84% and 88% and the peak around 03:00. Airflow remains manageable, reaching about 19 km/h around 03:00.Temperatures climb from an overnight low near 77°F toward a daytime high of about 78°F. The air stays humid, with relative humidity between 84% and 88% and the peak around 03:00. Airflow remains manageable, reaching about 12 mph around 03:00.

Expect a more open afternoon, with limited cloud around 41% by 20:00. Residual damp risk should be lower than earlier. Visibility stays near 16.1 km. Sunrise is at 07:15 and sunset at 18:49, giving 11 hours 33 minutes of sunlight today.Expect a more open afternoon, with limited cloud around 41% by 20:00. Residual damp risk should be lower than earlier. Visibility stays near 10 mi. Sunrise is at 07:15 and sunset at 18:49, giving 11 hours 33 minutes of sunlight today.

In short, October 11, 2026 looks like a fine day in San Marcos for being outside, peaking around 25°C.In short, October 11, 2026 looks like a fine day in San Marcos for being outside, peaking around 78°F.

Frequently asked questions about weather in San Marcos

How warm does it get in San Marcos?

The warmest month in San Marcos is August, with average high temperatures of 33°C. The average temperature during this period is around 28°C.The warmest month in San Marcos is August, with average high temperatures of 91°F. The average temperature during this period is around 82°F.

How cold does it get in San Marcos?

The coldest month in San Marcos is January, with average low temperatures of 19°C. The average temperature during this period is around 22°C.The coldest month in San Marcos is January, with average low temperatures of 66°F. The average temperature during this period is around 72°F.

What is the wettest time of year in San Marcos?

The wettest month in San Marcos is September, with an average of 174 mm of precipitation.The wettest month in San Marcos is September, with an average of 6.9 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 18 mm of precipitation.The driest month in San Marcos is February, with an average of 0.7 in of precipitation.

View full climate insights for San Marcos →