San Marcos

Current Weather

23°74°

Light Rain

Feels Like: 24°75°

Min: 21°70°

Max: 25°78°

The next few hours will be humid and overcast, with today reaching 25°C and dropping to 21°C. The coming days will be light rain throughout the day and possible thunderstorms in the afternoon.

Hourly Forecast
23°74°24°75°25°76°25°78°25°77°25°77°25°76°24°75°23°73°22°72°22°72°22°71°22°71°21°70°21°70°21°70°21°70°21°70°21°70°21°70°21°70°21°70°22°72°23°74°
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26%
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26%
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Air Quality
18
Good

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

GoodHazardous
Daylight Hours

05:34

Sunrise

17:19

Sunset

11 hours 45 minutes of sunlight today
Moon

07:05

Moonrise

18:05

Moonset

Daily Forecast

Today

21°70°
25°78°

Tuesday

21°70°
28°82°

Wednesday

20°69°
27°80°

Thursday

20°69°
27°81°

Friday

21°69°
28°82°

Saturday

21°70°
25°77°

Sunday

21°69°
27°80°

Monday

21°69°
26°78°

Tuesday

21°70°
25°77°

Wednesday

21°70°
27°80°
UV Index
Wear sunscreen
5Moderate
LowExtreme
Humidity
89%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 94% and the highest odds around 10:00. Cloud is also thick early on, peaking near 86% 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 94% and the highest odds around 10:00. Cloud is also thick early on, peaking near 86% around 09:00.

The day peaks near 25°C and cools toward 21°C. Expect humidity between 80% and 99%, most humid near 19:00. Airflow remains manageable, reaching about 17 km/h around 09:00.The day peaks near 78°F and cools toward 70°F. Expect humidity between 80% and 99%, most humid near 19:00. Airflow remains manageable, reaching about 11 mph around 09:00.

The second half of the day still looks unsettled, with rain probability around 100% by 13:00. Dense cloud near 87% at 23:00 keeps the feel grey. Expect visibility near 15.5 km, with poorer spells close to 7.1 km. Sunrise is at 05:34 and sunset at 17:19, giving 11 hours 45 minutes of sunlight today.The second half of the day still looks unsettled, with rain probability around 100% by 13:00. Dense cloud near 87% at 23:00 keeps the feel grey. Expect visibility near 9.6 mi, with poorer spells close to 4.4 mi. Sunrise is at 05:34 and sunset at 17:19, giving 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 100% and the high sits around 25°C.Overall, San Marcos on October 12, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 100% and the high sits around 78°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 31°C. The average temperature during this period is around 26°C.The warmest month in San Marcos is April, with average high temperatures of 88°F. The average temperature during this period is around 79°F.

How cold does it get in San Marcos?

The coldest month in San Marcos is January, with average low temperatures of 20°C. The average temperature during this period is around 23°C.The coldest month in San Marcos is January, with average low temperatures of 69°F. The average temperature during this period is around 74°F.

What is the wettest time of year in San Marcos?

The wettest month in San Marcos is October, with an average of 314 mm of precipitation.The wettest month in San Marcos is October, with an average of 12.4 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 24 mm of precipitation.The driest month in San Marcos is March, with an average of 1 in of precipitation.

View full climate insights for San Marcos →