San Marcos Weather in January
January in San Marcos sees daytime temperatures around 17°C (63°F) and lows of 3°C (37°F) at night. With around 74 mm (2.9 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in San Marcos in January
Records from the past 30 years suggest around 8 days of rain, with 74 mm (2.9 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in San Marcos in January
San Marcos in January gets highs of 17°C (63°F) during the day and drops to 3°C (37°F) at night. January marks the winter season. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 3°C (37°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. While temperatures are the coolest of this year this month, they remain pleasant and warm for outdoor activities.
Sunshine in San Marcos in January
You can expect a moderate amount of sunlight, with approximately 164 hours. This means a pleasant mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. March, April and November typically offer the best weather for San Marcos.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Marcos's climate page.
San Marcos Temperature in January
Min Temperature
3°C (37°F)
Max Temperature
17°C (63°F)
Chance of Rain
26%
Precipitation
74 mm (2.9 in)
Rainy days
8 days
Humidity
67% *
Sunshine
164 hours *
Percentage Sunshine
51% *
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
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What to Wear in San Marcos in January
Comfortable temperatures call for an easy wardrobe in January. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in San Marcos in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our San Marcos's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Marcos climate overview or explore weather in the United States of America.
