San Juan Tempo Previsão
San Juan weather: 27°C, céu limpo. Por hora forecast, 14-day outlook, UV, air quality and the best time a visit.
Risk assessment for San Juan
Derived from the current forecast window – not an official warning.
Peak gusts of 37 km/h and 2 thunderstorm days in the next 16 days.
Wettest single day forecast at 8 mm, 27 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day previsão para San Juan
Máximas e mínimas diárias, precipitação e UV.
| Dia | Condições | Máx. / Mín. | Precip. | Vento | UV |
|---|---|---|---|---|---|
| dom., set 20 | 🌦️ Chuvisco fraco | 30° / 26° | 43% · 1 mm | 22 km/h | 8 |
| seg., set 21 | 🌦️ Chuvisco | 30° / 26° | 78% · 2 mm | 17 km/h | 9 |
| ter., set 22 | ⛈️ Trovoada | 30° / 25° | 94% · 8 mm | 20 km/h | 8 |
| qua., set 23 | 🌦️ Chuvisco | 29° / 24° | 81% · 1 mm | 25 km/h | 9 |
| qui., set 24 | 🌦️ Chuvisco | 30° / 26° | 81% · 3 mm | 19 km/h | 8 |
| sex., set 25 | 🌦️ Chuvisco fraco | 30° / 25° | 45% · 0 mm | 21 km/h | 9 |
| sáb., set 26 | ☀️ Céu limpo | 30° / 26° | 56% | 26 km/h | 9 |
| dom., set 27 | 🌦️ Chuvisco fraco | 30° / 27° | 78% · 2 mm | 22 km/h | 9 |
| seg., set 28 | 🌦️ Chuvisco fraco | 30° / 26° | 68% · 2 mm | 24 km/h | 8 |
| ter., set 29 | 🌦️ Chuvisco fraco | 29° / 26° | 76% · 1 mm | 24 km/h | 8 |
| qua., set 30 | 🌦️ Chuvisco fraco | 29° / 27° | 74% · 0 mm | 24 km/h | 8 |
| qui., out 1 | 🌦️ Chuvisco fraco | 29° / 26° | 76% · 2 mm | 23 km/h | 8 |
| sex., out 2 | ☁️ Encoberto | 29° / 27° | 59% | 25 km/h | 8 |
| sáb., out 3 | 🌦️ Chuvisco fraco | 29° / 26° | 73% · 1 mm | 26 km/h | 8 |
| dom., out 4 | 🌦️ Chuvisco fraco | 29° / 26° | 59% · 1 mm | 23 km/h | 8 |
| seg., out 5 | ⛈️ Trovoada com hail | 34° / 26° | 43% · 4 mm | 29 km/h | 8 |
What this means for San Juan
Today is about average for setembro. The forecast high of 30°C is in line com the 30°C typical for this month.
A 43% chance means rain is likely somewhere nearby at some point – carry a layer, but do not cancel.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in junho a agosto.
The gap between the warmest and coldest month averages 3°C – an unusually even climate through the year.
Ver a previsão de San Juan por período
San Juan weather – more answers
Explore San Juan
Every topic we hold for this place, and the same topic for the places around it.
Tempo for related places
Frequently asked questions
Where is San Juan?
San Juan is a city in Porto Rico. Its coordinates are 18.4655, -66.1057. It lies in América do Norte.
What is the weather like in San Juan agora?
It is currently 27°C (81°F) com céu limpo. Humidade is 82% and wind is 7 km/h.
When is the best time a visit San Juan?
janeiro, março, mai, junho, julho, agosto and dezembro offer the most comfortable conditions in San Juan, which has a temperate climate. fevereiro, outubro and novembro are usually the hardest months for outdoor plans.
What time zone is San Juan in?
San Juan observes America/Puerto_Rico (UTC-04:00). The hora local is 10:24 PM.
How many people live in San Juan?
San Juan has a population of approximately 340.000.
What are the top things a do in San Juan?
Popular options include Virgin Islands National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-world) – coordinates, hierarchy and facts. |
|---|---|
| Previsão and observations | Open-Meteo (ECMWF and national models). |
| Qualidade do ar and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Clima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Tempo Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing – the block is simply not shown. |
Last updated setembro 20, 2026 at 10:24 PM hora local. Live blocks refresh every 15 minutes; climate averages monthly.
