San Marcos

Current Weather

19°66°

Drizzle

Feels Like: 19°66°

Min: 16°61°

Max: 22°72°

The next few hours will be overcast, with today reaching 22°C and dropping to 16°C. The coming days will be light rain

Hourly Forecast
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Air Quality
16
Good

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

GoodHazardous
Daylight Hours

05:27

Sunrise

17:16

Sunset

11 hours 48 minutes of sunlight today
Moon

06:05

Moonrise

Daily Forecast

Today

16°61°
22°72°

Monday

16°60°
23°74°

Tuesday

14°57°
26°78°

Wednesday

15°59°
24°75°

Thursday

16°60°
25°77°

Friday

16°60°
26°78°

Saturday

16°60°
24°75°

Sunday

17°63°
22°71°

Monday

16°61°
21°69°

Tuesday

16°61°
22°71°
UV Index
No protection needed
0Low
LowExtreme
Humidity
98%Very Humid
LowHigh
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Weather in San Marcos today, October 11, 2026

Misty spells are likely in San Marcos on October 11, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive.Misty spells are likely in San Marcos on October 11, 2026, especially during quieter hours. The day can open dull before any clearer intervals arrive.

Temperatures climb from an overnight low near 16°C toward a daytime high of about 22°C. The air stays humid, with relative humidity between 98% and 99% and the peak around 18:00. Airflow remains manageable, reaching about 8 km/h around 23:00.Temperatures climb from an overnight low near 61°F toward a daytime high of about 72°F. The air stays humid, with relative humidity between 98% and 99% and the peak around 18:00. Airflow remains manageable, reaching about 5 mph around 23:00.

The second half of the day still looks unsettled, with rain probability around 82% by 17:00. Dense cloud near 99% at 18:00 keeps the feel grey. Horizontal visibility sits around 12.4 km, briefly nearer 7.1 km. Expect sunrise at 05:27, sunset at 17:16, and 11 hours 48 minutes of sunlight today overall.The second half of the day still looks unsettled, with rain probability around 82% by 17:00. Dense cloud near 99% at 18:00 keeps the feel grey. Horizontal visibility sits around 7.7 mi, briefly nearer 4.4 mi. Expect sunrise at 05:27, sunset at 17:16, and 11 hours 48 minutes of sunlight today overall.

Overall, San Marcos on October 11, 2026 needs patience with visibility, especially early, even as temperatures reach about 22°C.Overall, San Marcos on October 11, 2026 needs patience with visibility, especially early, even as temperatures reach about 72°F.

Frequently asked questions about weather in San Marcos

How warm does it get in San Marcos?

The warmest month in San Marcos is March, with average high temperatures of 23°C. The average temperature during this period is around 18°C.The warmest month in San Marcos is March, with average high temperatures of 73°F. The average temperature during this period is around 65°F.

How cold does it get in San Marcos?

The coldest month in San Marcos is January, with average low temperatures of 14°C. The average temperature during this period is around 18°C.The coldest month in San Marcos is January, with average low temperatures of 57°F. The average temperature during this period is around 64°F.

What is the wettest time of year in San Marcos?

The wettest month in San Marcos is October, with an average of 596 mm of precipitation.The wettest month in San Marcos is October, with an average of 23.4 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 21 mm of precipitation.The driest month in San Marcos is February, with an average of 0.8 in of precipitation.

View full climate insights for San Marcos →