San Juan 天氣 預報
San Juan weather: 29°C, 晴朗. 逐小時 forecast, 14-day outlook, UV, air quality and the best time至visit.
14-day forecast for San Juan
最高 / 最低; 降雨; UV
| 日期 | 天氣狀況 | 最高 / 最低 | 降雨 | 風 | UV |
|---|---|---|---|---|---|
| 週一, 十月 19 | ⛈️ 雷雨 | 29° / 25° | 100% · 5 mm | 21 km/h | 8 |
| 週二, 十月 20 | 🌦️ 毛毛雨 | 28° / 25° | 92% · 2 mm | 16 km/h | 8 |
| 週三, 十月 21 | 🌦️ 毛毛雨 | 29° / 24° | 90% · 2 mm | 15 km/h | 8 |
| 週四, 十月 22 | ⛈️ 雷雨 | 29° / 25° | 82% · 4 mm | 12 km/h | 7 |
| 週五, 十月 23 | 🌦️ 毛毛雨 | 31° / 25° | 60% · 3 mm | 15 km/h | 5 |
| 週六, 十月 24 | ☁️ 陰天 | 31° / 26° | 59% | 16 km/h | 7 |
| 週日, 十月 25 | 🌦️ Light drizzle | 32° / 26° | 49% · 1 mm | 14 km/h | 8 |
| 週一, 十月 26 | 🌦️ Light drizzle | 32° / 26° | 36% · 1 mm | 13 km/h | 8 |
| 週二, 十月 27 | 🌦️ Light drizzle | 31° / 26° | 49% · 2 mm | 12 km/h | 7 |
| 週三, 十月 28 | 🌦️ Light drizzle | 29° / 25° | 72% · 2 mm | 18 km/h | 7 |
| 週四, 十月 29 | 🌦️ Light drizzle | 29° / 25° | 55% · 2 mm | 18 km/h | 8 |
| 週五, 十月 30 | 🌦️ 毛毛雨 | 29° / 24° | 71% · 6 mm | 21 km/h | 7 |
| 週六, 十月 31 | 🌦️ 毛毛雨 | 29° / 24° | 69% · 6 mm | 12 km/h | 7 |
| 週日, 十一月 1 | 🌦️ 毛毛雨 | 30° / 26° | 89% · 6 mm | 19 km/h | 7 |
The two-week trend
Steady. The second week averages within a degree of the first, so no big change is signalled.
The window averages 30°C against a 十月 normal of 30°C - right on average.
雨fall over the next 7 days is close至normal for 十月 (16 mm against a typical 29 mm).
What this means for San Juan
Today is about average for 十月. The forecast high of 29°C is in line，天氣為the 30°C typical for this month.
A 100% chance means rain is expected over most of the area. Plan indoor alternatives.
Wet roads are likely; braking distances roughly double in heavy rain.
Northern Hemisphere, so peak summer falls in 六月至八月.
The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.
What至pack, what至skip
- Lightweight, light-coloured clothing and a refillable water bottle
- 週日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 八月, 十月 and 十一月 - historically the least comfortable months here.
查看 San Juan 的分時預報
San Juan weather - more answers
Explore San Juan
Every topic we hold for this place, and the same topic for the places around it.
天氣 for related places
Frequently asked questions
Where is San Juan?
San Juan is a city in 波多黎各. Its coordinates are 18.4655, -66.1057. It lies in 北美洲.
What is the weather like in San Juan現在?
It is currently 29°C (84°F)，天氣為晴朗. 濕度 is 78% and wind is 20 km/h.
When is the best time至visit San Juan?
一月, 三月, 五月, 六月, 七月, 九月 and 十二月 offer the most comfortable conditions in San Juan, which has a temperate climate. 八月, 十月 and 十一月 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 3:36 PM.
How many people live in San Juan?
San Juan has a population of approximately 340.000.
What are the top things至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. |
|---|---|
| 預報 and observations | Open-Meteo (ECMWF and national models). |
| 空氣品質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 氣候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National 天氣 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 十月 19, 2026 at 3:36 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
