San Juan Počasí Předpověď
San Juan weather: 29°C, jasná obloha. Po hodinách forecast, 14-day outlook, UV, air quality and the best time do visit.
Risk assessment for San Juan
Derived from the current forecast window - not an official warning.
Peak gusts of 48 km/h and 4 thunderstorm days in the next 16 days.
Wettest single day forecast at 7 mm, 30 mm across the window. Flash flooding risk rises sharply above 50 mm in a day.
16-day forecast for San Juan
Max. / Min.; Srážky; UV
| Den | Podmínky | Max. / Min. | Srážky | Vítr | UV |
|---|---|---|---|---|---|
| st, srp 26 | 🌦️ Light drizzle | 29° / 27° | 35% · 0 mm | 26 km/h | 9 |
| čt, srp 27 | 🌦️ Mrholení | 29° / 26° | 82% · 1 mm | 29 km/h | 8 |
| pá, srp 28 | 🌦️ Light drizzle | 30° / 26° | 81% · 1 mm | 29 km/h | 9 |
| so, srp 29 | 🌦️ Light drizzle | 30° / 27° | 79% · 1 mm | 26 km/h | 9 |
| ne, srp 30 | 🌦️ Light drizzle | 30° / 28° | 92% · 2 mm | 24 km/h | 9 |
| po, srp 31 | ⛈️ Bouřka | 29° / 26° | 93% · 5 mm | 22 km/h | 8 |
| út, zář 1 | ⛈️ Bouřka | 29° / 26° | 89% · 5 mm | 24 km/h | 7 |
| st, zář 2 | 🌦️ Light drizzle | 30° / 26° | 63% · 1 mm | 26 km/h | 9 |
| čt, zář 3 | 🌦️ Light drizzle | 29° / 27° | 71% · 0 mm | 27 km/h | 9 |
| pá, zář 4 | 🌦️ Light drizzle | 28° / 26° | 87% · 4 mm | 24 km/h | 9 |
| so, zář 5 | ⛈️ Bouřka | 28° / 26° | 80% · 5 mm | 23 km/h | 8 |
| ne, zář 6 | ⛈️ Bouřka | 29° / 26° | 79% · 7 mm | 18 km/h | 9 |
| po, zář 7 | ☁️ Zataženo | 29° / 26° | 49% | 27 km/h | 9 |
| út, zář 8 | ☁️ Zataženo | 30° / 26° | 47% | 27 km/h | 9 |
| st, zář 9 | ⛅ Polojasno | 29° / 26° | 61% | 29 km/h | 9 |
| čt, zář 10 | ⛅ Polojasno | 34° / 25° | 33% | 23 km/h | 9 |
What this means for San Juan
Today is about average for srpen. The forecast high of 29°C is in line s the 30°C typical for this month.
A 35% 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 červen do srpen.
The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.
Zobrazit předpověď pro San Juan podle časového období
San Juan weather - more answers
Explore San Juan
Every topic we hold for this place, and the same topic for the places around it.
Počasí for related places
Frequently asked questions
Where is San Juan?
San Juan is a city in Portoriko. Its coordinates are 18.4655, -66.1057. It lies in Severní Amerika.
What is the weather like in San Juan právě teď?
It is currently 29°C (84°F) s jasná obloha. Vlhkost is 77% and wind is 24 km/h.
When is the best time do visit San Juan?
leden, březen, kvě, červen, červenec and prosinec offer the most comfortable conditions in San Juan, which has a temperate climate. únor, říjen and listopad 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 local time is 6:55 PM.
How many people live in San Juan?
San Juan has a population of approximately 340.000.
What are the top things do 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. |
|---|---|
| Předpověď and observations | Open-Meteo (ECMWF and national models). |
| Kvalita ovzduší and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Počasí 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 srpen 26, 2026 at 6:55 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
