San Marcos

Current Weather

27°81°

Light Rain

Feels Like: 30°87°

Min: 23°74°

Max: 27°81°

The next few hours will be humid and overcast, with today reaching 27°C and dropping to 23°C. The coming days will be drizzle

Hourly Forecast
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26%
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10%
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10%
22%
22%
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Air Quality
19
Good

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

GoodHazardous
Daylight Hours

05:32

Sunrise

17:16

Sunset

11 hours 44 minutes of sunlight today
Moon

07:02

Moonrise

18:02

Moonset

Daily Forecast

Today

23°74°
27°81°

Tuesday

23°74°
31°87°

Wednesday

23°74°
31°87°

Thursday

23°74°
31°88°

Friday

23°74°
30°87°

Saturday

24°74°
29°85°

Sunday

24°74°
30°86°

Monday

23°74°
27°81°

Tuesday

23°74°
29°84°

Wednesday

23°74°
30°86°
UV Index
Seek shade during midday
6High
LowExtreme
Humidity
85%Humid
LowHigh
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Weather in San Marcos today, October 12, 2026

San Marcos looks damp on October 12, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Morning plans should assume damp conditions, as rain chances climb toward 74% around 10:00. Cloud cover is also at its densest near 09:00 at roughly 87%.San Marcos looks damp on October 12, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Morning plans should assume damp conditions, as rain chances climb toward 74% around 10:00. Cloud cover is also at its densest near 09:00 at roughly 87%.

Temperatures climb from an overnight low near 23°C toward a daytime high of about 27°C. Moisture in the air spans 84%-99%, with the highest values around 22:00. Airflow remains manageable, reaching about 12 km/h around 09:00.Temperatures climb from an overnight low near 74°F toward a daytime high of about 81°F. Moisture in the air spans 84%-99%, with the highest values around 22:00. Airflow remains manageable, reaching about 8 mph around 09:00.

Through the afternoon wet weather remains a factor, with rain chances near 100% around 13:00. Cloud also stays substantial, close to 89% near 18:00. Horizontal visibility sits around 14.4 km, briefly nearer 8.2 km. Sunrise is at 05:32 and sunset at 17:16, giving 11 hours 44 minutes of sunlight today.Through the afternoon wet weather remains a factor, with rain chances near 100% around 13:00. Cloud also stays substantial, close to 89% near 18:00. Horizontal visibility sits around 8.9 mi, briefly nearer 5.1 mi. Sunrise is at 05:32 and sunset at 17:16, giving 11 hours 44 minutes of sunlight today.

The practical takeaway for San Marcos on October 12, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 27°C.The practical takeaway for San Marcos on October 12, 2026 is simple: plan for rain, keep layers handy, and work around a high of about 81°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 31°C. The average temperature during this period is around 27°C.The warmest month in San Marcos is May, with average high temperatures of 89°F. The average temperature during this period is around 80°F.

How cold does it get in San Marcos?

The coldest month in San Marcos is January, with average low temperatures of 21°C. The average temperature during this period is around 24°C.The coldest month in San Marcos is January, with average low temperatures of 70°F. The average temperature during this period is around 75°F.

What is the wettest time of year in San Marcos?

The wettest month in San Marcos is June, with an average of 287 mm of precipitation.The wettest month in San Marcos is June, with an average of 11.3 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 50 mm of precipitation.The driest month in San Marcos is March, with an average of 2 in of precipitation.

View full climate insights for San Marcos →