San Juan 天気 予報
San Juan weather: 27°C, 快晴. 時間別 forecast, 14-day outlook, UV, air quality and the best timeからvisit.
Will it rain in San Juan?
Yes - rain is likely in San Juan today.
A 73% chance means rain is expected over most of the area. Plan indoor alternatives.
Over the next 7 days, about 23 mm of precipitation is forecast,、the wettest days falling on 水, 木, 金, 土, 日, 月 and 火.
雨fall over the next 7 days is closeからnormal for 10月 (23 mm against a typical 29 mm).
16-day forecast for San Juan
最高 / 最低; 降水; UV
| 日 | 状況 | 最高 / 最低 | 降水 | 風 | UV |
|---|---|---|---|---|---|
| 水, 10月 28 | 🌦️ Light showers | 31° / 26° | 73% · 5 mm | 14 km/h | 7 |
| 木, 10月 29 | 🌦️ 霧雨 | 31° / 26° | 57% · 2 mm | 15 km/h | 7 |
| 金, 10月 30 | 🌦️ Light drizzle | 30° / 25° | 66% · 1 mm | 24 km/h | 7 |
| 土, 10月 31 | ⛈️ 雷雨 | 29° / 25° | 70% · 6 mm | 19 km/h | 7 |
| 日, 11月 1 | ⛈️ 雷雨 | 29° / 25° | 67% · 5 mm | 16 km/h | 7 |
| 月, 11月 2 | ⛈️ 雷雨 | 30° / 25° | 76% · 2 mm | 20 km/h | 1 |
| 火, 11月 3 | 🌦️ 霧雨 | 31° / 24° | 84% · 2 mm | 22 km/h | 7 |
| 水, 11月 4 | ⛈️ 雷雨 | 29° / 24° | 91% · 7 mm | 10 km/h | 7 |
| 木, 11月 5 | 🌦️ Light showers | 28° / 24° | 84% · 13 mm | 11 km/h | 7 |
| 金, 11月 6 | 🌦️ Light showers | 28° / 24° | 90% · 16 mm | 7 km/h | 7 |
| 土, 11月 7 | ⛈️ 雷雨 | 28° / 24° | 79% · 14 mm | 6 km/h | 5 |
| 日, 11月 8 | 🌦️ 霧雨 | 28° / 24° | 85% · 5 mm | 6 km/h | 7 |
| 月, 11月 9 | 🌦️ Light drizzle | 29° / 24° | 86% · 1 mm | 16 km/h | 7 |
| 火, 11月 10 | 🌥️ 霧 | 29° / 24° | 83% | 24 km/h | 7 |
| 水, 11月 11 | 🌦️ Light drizzle | 29° / 24° | 28% · 2 mm | 20 km/h | 7 |
| 木, 11月 12 | ☁️ 曇り | 31° / 23° | 35% | 16 km/h | 6 |
What this means for San Juan
Today is about average for 10月. The forecast high of 31°C is in line、the 30°C typical for this month.
A 73% 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 6月から8月.
The gap between the warmest and coldest month averages 3°C - an unusually even climate through the year.
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.
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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 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 27°C (80°F)、快晴. 湿度 is 80% 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 9:21 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 28, 2026 at 9:21 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
