San Juantemperature
It is 82.4°F at San Juan/Dominicci Arpt, 18:55 local on Thursday. San Juan is the 87th hottest of 230 capitals by annual mean.
13 readings held for the last 24 hours, every one of them checked before it appeared.
Source: METAR reports from the aerodrome
Normal for 31 October here is a high of 86.0°F.
Source: METAR reports from the aerodrome · normals from NOAA GHCN-Daily
We recorded this on 21 October 2026. It is the highest reading this site has taken here.
Record broken. Higher than anything in the archive, which held 91.9°F on 14 October 1955, 1.3°F above it.
Source: Our own observations, 52 days
16 January 1955. The lowest daily minimum in the record for this station.
Source: GHCN-Daily, 1955 to 1955
Where San Juan stands
San Juan by month
Normal high · record high with its day · record low with its day- Jan81.7°FHigh 87.1°F · 30 Jan 1955Low 64.0°F · 16 Jan 1955
- Feb80.4°FHigh 84.0°F · 15 Feb 1955Low 66.9°F · 9 Feb 1955
- Mar80.6°FHigh 88.0°F · 29 Mar 1955Low 64.9°F · 2 Mar 1955
- Apr82.8°FHigh 90.0°F · 30 Apr 1955Low 66.0°F · 22 Apr 1955
- May85.3°FHigh 91.0°F · 2 May 1955Low 70.0°F · 24 May 1955
- Jun87.6°FHigh 91.0°F · 10 Jun 1955Low 70.0°F · 2 Jun 1955
- Jul
Nearby, hottest and coldest
Within 159 km · 6 stations reportingCapitals with a similar climate
The capitals immediately warmer and cooler than San Juan by annual mean.
How San Juan’s temperature has been recorded
How hot does it get in San Juan?
August is the warmest month at San Juan/Dominicci Arpt, averaging a daily high of 88.2°F. That is an average of every August day in the archive, not a record: the highest single reading is below.
How cold does it get in San Juan?
February is the coolest month, averaging a daily high of 80.4°F. The gap between the warmest and coolest month is 39.7°F, which is what the ranking of capitals by annual swing is built on.
What is the highest temperature ever recorded in San Juan?
91.9°F, on 14 October 1955, in the record held for San Juan/Dominicci Arpt. That is the highest daily maximum in the archive for this station, not a national record and not an official figure: those are set by national meteorological services.
What is the lowest temperature ever recorded in San Juan?
64.0°F, on 16 January 1955, in the same archive. Like the high, it is the lowest daily minimum this station has recorded rather than an official national figure.
Sources and checks for this page
Live readings come from METAR reports from the aerodrome at San Juan/Dominicci Arpt. Monthly means and every record on this page are computed from NOAA GHCN-Daily observations stored per station, per year, per month, and the capital list is GeoNames, CC BY 4.0. Nothing here is modelled, interpolated or estimated, and a month the archive never covered is left out rather than filled in. See how this is built.