San Juan 天気 予報
San Juan weather: 29°C, 快晴. 時間別 forecast, 14-day outlook, UV, air quality and the best timeからvisit.
7-day forecast for San Juan
最高 / 最低; 降水; UV
| 日 | 状況 | 最高 / 最低 | 降水 | 風 | UV |
|---|---|---|---|---|---|
| 火, 10月 20 | 🌦️ 霧雨 | 29° / 25° | 98% · 3 mm | 17 km/h | 7 |
| 水, 10月 21 | 🌦️ 霧雨 | 30° / 24° | 69% · 1 mm | 16 km/h | 8 |
| 木, 10月 22 | 🌦️ Light showers | 30° / 25° | 78% · 3 mm | 12 km/h | 7 |
| 金, 10月 23 | ⛈️ 雷雨 | 30° / 25° | 73% · 3 mm | 18 km/h | 8 |
| 土, 10月 24 | ⛈️ 雷雨 | 30° / 26° | 73% · 3 mm | 18 km/h | 8 |
| 日, 10月 25 | ☁️ 曇り | 32° / 27° | 44% | 14 km/h | 8 |
| 月, 10月 26 | ☁️ 曇り | 30° / 25° | 53% | 22 km/h | 8 |
Weekend outlook
⛈️ 30° / 26°
雷雨 · 73% rain · wind 18 km/h
☁️ 32° / 27°
曇り · 44% rain · wind 14 km/h
Is today a good dayからvisit?
Activity scores from 0から10 based on temperature, rain, wind, sun and visibility.
Whatからpack, whatからskip
- Lightweight, light-coloured clothing and a refillable water bottle
- 日glasses, a brimmed hat and SPF 30+
- A packable rain shell - 7 of the next 7 days carry a real chance of rain
- If your dates are flexible, avoid 8月, 10月 and 11月 - historically the least comfortable months here.
Active alerts for San Juan
高い Surf Advisory issued 10月 20 at 10:03AM AST until 10月 20 at 6:00PM AST by NWS San Juan PR
Issued by NWS San Juan PR
Rip Current Statement issued 10月 20 at 10:03AM AST until 10月 21 at 6:00PM AST by NWS San Juan PR
Issued by NWS San Juan PR
時間帯別のSan Juan 予報を見る
San Juan weather - more answers
Explore San Juan
Every topic we hold for this place, and the same topic for the places around it.
天気 for related places
Frequently asked questions
Where is San Juan?
San Juan is a city in プエルトリコ. Its coordinates are 18.4655, -66.1057. It lies in 北アメリカ.
What is the weather like in San Juan現在?
It is currently 29°C (83°F)、快晴. 湿度 is 74% and wind is 8 km/h.
When is the best timeからvisit San Juan?
1月, 3月, 5月, 6月, 7月, 9月 and 12月 offer the most comfortable conditions in San Juan, which has a temperate climate. 8月, 10月 and 11月 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 11:30 AM.
How many people live in San Juan?
San Juan has a population of approximately 340.000.
What are the top thingsから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. |
|---|---|
| 予報 and observations | Open-Meteo (ECMWF and national models). |
| 大気質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 気候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National 天気 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 10月 20, 2026 at 11:30 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
