San Marcos

Current Weather

25°77°

Mostly Cloudy

Feels Like: 26°79°

Min: 21°70°

Max: 27°80°

The next few hours will be humid and overcast, with today reaching 27°C and dropping to 22°C. The coming days will be light rain throughout the day and possible thunderstorms in the afternoon.

Hourly Forecast
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Air Quality
31
Good

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

GoodHazardous
Daylight Hours

05:37

Sunrise

17:23

Sunset

11 hours 45 minutes of sunlight today
Moon

07:08

Moonrise

18:09

Moonset

Daily Forecast

Today

21°70°
27°80°

Tuesday

22°71°
28°83°

Wednesday

22°71°
28°82°

Thursday

22°71°
28°83°

Friday

21°70°
28°82°

Saturday

21°70°
28°82°

Sunday

21°70°
27°80°

Monday

21°70°
26°80°

Tuesday

21°70°
26°79°

Wednesday

21°70°
27°80°
UV Index
Wear sunscreen
5Moderate
LowExtreme
Humidity
82%Humid
LowHigh
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Weather in San Marcos today, October 12, 2026

San Marcos starts October 12, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. The morning carries the wetter risk, with rain chances near 76% and the highest odds around 10:00. Cloud is also thick early on, peaking near 83% around 09:00.San Marcos starts October 12, 2026 looking damp, with rain in the forecast and wetter spells likely at times. Waterproof kit is the safer call for early plans. The morning carries the wetter risk, with rain chances near 76% and the highest odds around 10:00. Cloud is also thick early on, peaking near 83% around 09:00.

Temperatures climb from an overnight low near 21°C toward a daytime high of about 27°C. Expect humidity between 74% and 98%, most humid near 21:00. Winds stay light, near 14 km/h by 09:00, so the day feels still more than breezy.Temperatures climb from an overnight low near 70°F toward a daytime high of about 80°F. Expect humidity between 74% and 98%, most humid near 21:00. Winds stay light, near 9 mph by 09:00, so the day feels still more than breezy.

Afternoon showers stay in play, peaking near 94% around 13:00. Skies remain cluttered, with cover about 84% by 23:00. Visibility holds near 15.6 km, though it can fall to 8.2 km. Daylight runs from 05:37 to 17:23, lasting 11 hours 45 minutes of sunlight today.Afternoon showers stay in play, peaking near 94% around 13:00. Skies remain cluttered, with cover about 84% by 23:00. Visibility holds near 9.7 mi, though it can fall to 5.1 mi. Daylight runs from 05:37 to 17:23, lasting 11 hours 45 minutes of sunlight today.

Overall, San Marcos on October 12, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 94% and the high sits around 27°C.Overall, San Marcos on October 12, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 94% and the high sits around 80°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 34°C. The average temperature during this period is around 28°C.The warmest month in San Marcos is April, with average high temperatures of 93°F. The average temperature during this period is around 83°F.

How cold does it get in San Marcos?

The coldest month in San Marcos is January, with average low temperatures of 22°C. The average temperature during this period is around 26°C.The coldest month in San Marcos is January, with average low temperatures of 71°F. The average temperature during this period is around 79°F.

What is the wettest time of year in San Marcos?

The wettest month in San Marcos is October, with an average of 416 mm of precipitation.The wettest month in San Marcos is October, with an average of 16.4 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 3 mm of precipitation.The driest month in San Marcos is February, with an average of 0.1 in of precipitation.

View full climate insights for San Marcos →