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.