How extreme does San Marcos's weather get?

The hottest, coldest, wettest and snowiest days San Marcos has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 28 years of daily weather observations (1997–present), from the Quetzaltenango station 33 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days San Marcos has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

93°F Jun 9, 2023

The three most extreme on record

1 93°F Jun 9, 2023recent

2 91°F Jun 18, 2001

3 90°F May 7, 2001

❄️ Coldest night

23°F Jan 16, 2001

The three most extreme on record

1 23°F Jan 16, 2001

2 23°F Feb 23, 2001

3 23°F Dec 23, 2007

In plain terms

Across the record, San Marcos has reached as high as 93°F and as low as 23°F. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Huehuetenango, a weather station, about 53 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

← San Marcos city detail