San Marcos

Current Weather

26°80°

Drizzle

Feels Like: 26°79°

Min: 23°74°

Max: 30°86°

The next few hours will be humid and partly cloudy, with today reaching 30°C and dropping to 23°C. The coming days will be drizzle

Hourly Forecast
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22%
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22%
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100%
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Air Quality
20
Good

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

GoodHazardous
Daylight Hours

05:42

Sunrise

17:24

Sunset

11 hours 41 minutes of sunlight today
Moon

06:24

Moonrise

Daily Forecast

Today

23°74°
30°86°

Monday

23°74°
30°86°

Tuesday

23°74°
28°82°

Wednesday

22°72°
30°85°

Thursday

22°72°
29°84°

Friday

23°73°
26°79°

Saturday

22°72°
26°78°

Sunday

23°73°
30°86°

Monday

23°73°
30°86°

Tuesday

23°73°
30°87°
UV Index
No protection needed
2Low
LowExtreme
Humidity
89%Humid
LowHigh
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Weather in San Marcos today, October 11, 2026

San Marcos starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.San Marcos starts October 11, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans.

Temperatures climb from an overnight low near 23°C toward a daytime high of about 30°C. Relative humidity sits between 88% and 100%, reaching its peak around 22:00. Winds stay light, near 4 km/h by 15:00, so the day feels still more than breezy.Temperatures climb from an overnight low near 74°F toward a daytime high of about 86°F. Relative humidity sits between 88% and 100%, reaching its peak around 22:00. Winds stay light, near 2 mph by 15:00, so the day feels still more than breezy.

Afternoon showers stay in play, peaking near 86% around 15:00. Skies remain cluttered, with cover about 100% by 18:00. Horizontal visibility sits around 12.9 km, briefly nearer 4.6 km. The sun rises at 05:42 and sets at 17:24, for a total of 11 hours 41 minutes of sunlight today.Afternoon showers stay in play, peaking near 86% around 15:00. Skies remain cluttered, with cover about 100% by 18:00. Horizontal visibility sits around 8 mi, briefly nearer 2.8 mi. The sun rises at 05:42 and sets at 17:24, for a total of 11 hours 41 minutes of sunlight today.

The practical takeaway for San Marcos on October 11, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 30°C.The practical takeaway for San Marcos on October 11, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 86°F.

Frequently asked questions about weather in San Marcos

How warm does it get in San Marcos?

The warmest month in San Marcos is May, with average high temperatures of 30°C. The average temperature during this period is around 25°C.The warmest month in San Marcos is May, with average high temperatures of 87°F. The average temperature during this period is around 77°F.

How cold does it get in San Marcos?

The coldest month in San Marcos is January, with average low temperatures of 17°C. The average temperature during this period is around 21°C.The coldest month in San Marcos is January, with average low temperatures of 62°F. The average temperature during this period is around 69°F.

What is the wettest time of year in San Marcos?

The wettest month in San Marcos is November, with an average of 390 mm of precipitation.The wettest month in San Marcos is November, with an average of 15.4 in of precipitation.

What is the driest time of year in San Marcos?

The driest month in San Marcos is March, with an average of 82 mm of precipitation.The driest month in San Marcos is March, with an average of 3.2 in of precipitation.

View full climate insights for San Marcos →