The hottest, coldest, wettest and snowiest days Heredia has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 20 years of daily weather observations (2005–present), from the Tobias Bolanos Intl station 5 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 Heredia
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
93°FSep 7, 2009
The three most extreme on record
193°FSep 7, 2009
291°FMar 1, 2009
390°FMar 18, 2013
❄️Coldest night
51°FMar 27, 2012
The three most extreme on record
151°FMar 27, 2012
253°FMar 24, 2015
353°FMar 7, 2019
🌧️Most rain in one day
5.99 inSep 10, 2012
The three most extreme on record
15.99 inSep 10, 2012
25.22 inOct 6, 2017
34.41 inMay 7, 2024
In plain terms
Across the record, Heredia has reached as high as 93°F and as low as 51°F. A single day has delivered over 6 inches of rain. 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 28 years of daily observations at Juan Santamaria Intl, a weather station, about 10 km from the city centre. The underlying daily records come from NOAA's global station network.