San Juan Väder Prognos
San Juan weather: 28°C, delvis molnigt. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.
Will it rain in San Juan?
Yes - rain is likely in San Juan today.
A 57% chance means rain is likely somewhere nearby at some point - carry a layer, but do not cancel.
Over the next 7 days, about 13 mm of precipitation is forecast, med the wettest days falling on tis, tor, fre, lör, sön and mån.
Regnfall over the next 7 days is close och normal for oktober (13 mm against a typical 29 mm).
16-day forecast for San Juan
Max / Min; Nederb.; UV
| Dag | Förhållanden | Max / Min | Nederb. | Vind | UV |
|---|---|---|---|---|---|
| tis, okt 27 | 🌦️ Light drizzle | 32° / 27° | 57% · 1 mm | 19 km/h | 8 |
| ons, okt 28 | 🌦️ Light drizzle | 31° / 26° | 39% · 1 mm | 18 km/h | 7 |
| tor, okt 29 | 🌦️ Duggregn | 31° / 26° | 55% · 2 mm | 15 km/h | 7 |
| fre, okt 30 | 🌦️ Duggregn | 30° / 26° | 57% · 3 mm | 21 km/h | 7 |
| lör, okt 31 | 🌧️ Heavy drizzle | 30° / 25° | 72% · 3 mm | 19 km/h | 7 |
| sön, nov 1 | 🌦️ Light drizzle | 29° / 26° | 67% · 2 mm | 25 km/h | 7 |
| mån, nov 2 | 🌦️ Light drizzle | 30° / 25° | 80% · 2 mm | 18 km/h | 3 |
| tis, nov 3 | ⛈️ Åska | 30° / 25° | 84% · 9 mm | 22 km/h | 6 |
| ons, nov 4 | ⛈️ Åska | 29° / 24° | 91% · 10 mm | 24 km/h | 7 |
| tor, nov 5 | ⛈️ Åska | 29° / 24° | 84% · 3 mm | 16 km/h | 6 |
| fre, nov 6 | 🌧️ Heavy drizzle | 29° / 25° | 90% · 10 mm | 13 km/h | 6 |
| lör, nov 7 | 🌧️ Heavy drizzle | 29° / 25° | 79% · 9 mm | 15 km/h | 7 |
| sön, nov 8 | 🌦️ Light drizzle | 29° / 25° | 85% · 5 mm | 14 km/h | 7 |
| mån, nov 9 | 🌦️ Light drizzle | 29° / 25° | 86% · 1 mm | 22 km/h | 7 |
| tis, nov 10 | 🌦️ Light drizzle | 29° / 24° | 83% · 1 mm | 19 km/h | 7 |
| ons, nov 11 | 🌦️ Light drizzle | 32° / 24° | 39% · 0 mm | 21 km/h | 7 |
What this means for San Juan
Today is slightly warmer than average for oktober. The forecast high of 32°C is 1.9°C above the 30°C typical for this month.
A 57% 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 juni och augusti.
The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.
What och pack, what och skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sönglasses, a brimmed hat and SPF 30+
- A packable rain shell - 6 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid augusti, oktober and november - historically the least comfortable months here.
Se prognosen för San Juan per tidsintervall
San Juan weather - more answers
Explore San Juan
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Frequently asked questions
Where is San Juan?
San Juan is a city in Puerto Rico. Its coordinates are 18.4655, -66.1057. It lies in Nordamerika.
What is the weather like in San Juan just nu?
It is currently 28°C (83°F) med delvis molnigt. Luftfuktighet is 78% and wind is 8 km/h.
When is the best time och visit San Juan?
januari, mars, maj, juni, juli, september and december offer the most comfortable conditions in San Juan, which has a temperate climate. augusti, oktober and november 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 9:16 PM.
How many people live in San Juan?
San Juan has a population of approximately 340.000.
What are the top things och 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. |
|---|---|
| Prognos and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klimat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Väder 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 oktober 27, 2026 at 9:16 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
