San Marcos

Current Weather

27°81°

Mostly Cloudy

Feels Like: 27°81°

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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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
Wear sunscreen
5Moderate
LowExtreme
Humidity
84%Humid
LowHigh
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Weather in San Marcos today, October 12, 2026

Rain features in San Marcos on October 12, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Wetter spells lean into the morning, when rain odds reach about 74% near 10:00. Skies look heaviest around 09:00, with cover close to 87%.Rain features in San Marcos on October 12, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Wetter spells lean into the morning, when rain odds reach about 74% near 10:00. Skies look heaviest around 09:00, with cover close to 87%.

The temperature range runs from about 23°C up to 27°C. Relative humidity sits between 84% and 99%, reaching its peak around 22:00. Airflow remains manageable, reaching about 12 km/h around 09:00.The temperature range runs from about 74°F up to 81°F. Relative humidity sits between 84% and 99%, reaching its peak around 22:00. Airflow remains manageable, reaching about 8 mph around 09:00.

Afternoon showers stay in play, peaking near 100% around 13:00. Skies remain cluttered, with cover about 89% by 18:00. Horizontal visibility sits around 14.4 km, briefly nearer 8.2 km. The sun rises at 05:32 and sets at 17:16, for a total of 11 hours 44 minutes of sunlight today.Afternoon showers stay in play, peaking near 100% around 13:00. Skies remain cluttered, with cover about 89% by 18:00. Horizontal visibility sits around 8.9 mi, briefly nearer 5.1 mi. The sun rises at 05:32 and sets at 17:16, for a total of 11 hours 44 minutes of sunlight today.

In short, treat October 12, 2026 in San Marcos as a damp day: pack covers, watch the wetter hours, and expect a high near 27°C.In short, treat October 12, 2026 in San Marcos as a damp day: pack covers, watch the wetter hours, and expect a high near 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 →