San Marcos

Current Weather

22°72°

Light Rain

Feels Like: 23°74°

Min: 20°69°

Max: 26°79°

The next few hours will be humid and overcast, with today reaching 26°C and dropping to 21°C. The coming days will be light rain throughout the day.

Hourly Forecast
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Air Quality
14
Good

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

GoodHazardous
Daylight Hours

05:38

Sunrise

17:22

Sunset

11 hours 44 minutes of sunlight today
Moon

07:09

Moonrise

18:07

Moonset

Daily Forecast

Today

20°69°
26°79°

Tuesday

21°70°
27°80°

Wednesday

21°69°
26°78°

Thursday

21°69°
27°80°

Friday

21°69°
27°80°

Saturday

21°70°
27°80°

Sunday

21°69°
26°79°

Monday

21°69°
26°79°

Tuesday

21°69°
26°79°

Wednesday

21°69°
27°80°
UV Index
Wear sunscreen
5Moderate
LowExtreme
Humidity
93%Very 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. Early hours look the most unsettled, with rain probability near 100% by 10:00. The thickest cloud arrives around 09:00, reaching about 88%.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. Early hours look the most unsettled, with rain probability near 100% by 10:00. The thickest cloud arrives around 09:00, reaching about 88%.

Temperatures climb from an overnight low near 20°C toward a daytime high of about 26°C. Expect humidity between 76% and 100%, most humid near 22:00. Winds stay light, near 15 km/h by 09:00, so the day feels still more than breezy.Temperatures climb from an overnight low near 69°F toward a daytime high of about 79°F. Expect humidity between 76% and 100%, most humid near 22:00. Winds stay light, near 9 mph by 09:00, so the day feels still more than breezy.

Through the afternoon wet weather remains a factor, with rain chances near 100% around 12:00. Cloud also stays substantial, close to 91% near 23:00. Expect visibility around 16.1 km. Expect sunrise at 05:38, sunset at 17:22, and 11 hours 44 minutes of sunlight today overall.Through the afternoon wet weather remains a factor, with rain chances near 100% around 12:00. Cloud also stays substantial, close to 91% near 23:00. Expect visibility around 10 mi. Expect sunrise at 05:38, sunset at 17:22, and 11 hours 44 minutes of sunlight today overall.

In short, treat October 12, 2026 in San Marcos as a damp day: pack covers, watch the wetter hours, and expect a high near 26°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 79°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 29°C. The average temperature during this period is around 24°C.The warmest month in San Marcos is April, with average high temperatures of 85°F. The average temperature during this period is around 75°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 63°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 October, with an average of 232 mm of precipitation.The wettest month in San Marcos is October, with an average of 9.1 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 22 mm of precipitation.The driest month in San Marcos is March, with an average of 0.9 in of precipitation.

View full climate insights for San Marcos →