San Juan 天氣 預報
San Juan weather: 26°C, 晴朗. 逐小時 forecast, 14-day outlook, UV, air quality and the best time至visit.
San Juan weather in 十二月
One of the best months至visit San Juan.
十二月 runs 1°C cooler than the annual average in San Juan.
天氣 map for San Juan
Animated model layers. Pick a layer至load it.
Animated layers by 風y. For pin-level detail and nearby places, see the interactive map below.
氣候 in San Juan month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月份 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 一月 | 27° | 24° | 57 mm | ★★★★☆ |
| 二月 | 27° | 23° | 118 mm | ★★★★☆ |
| 三月 | 27° | 23° | 77 mm | ★★★★☆ |
| 四月 | 28° | 24° | 123 mm | ★★★★☆ |
| 五月 | 29° | 25° | 87 mm | ★★★★☆ |
| 六月 | 30° | 26° | 62 mm | ★★★★☆ |
| 七月 | 30° | 26° | 62 mm | ★★★★☆ |
| 八月 | 30° | 26° | 118 mm | ★★★★☆ |
| 九月 | 30° | 26° | 79 mm | ★★★★☆ |
| 十月 | 30° | 26° | 126 mm | ★★★☆☆ |
| 十一月 | 29° | 25° | 134 mm | ★★★☆☆ |
| 十二月 | 28° | 24° | 87 mm | ★★★★☆ |
氣候 type: Temperate. 來源： Open-Meteo archive (ERA5).
最佳旅遊時間 San Juan
Go in 一月, 三月, 五月, 六月, 七月, 九月 and 十二月. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: 八月, 十月 and 十一月 - expect the least comfortable mix of heat, cold or rain.
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.
How San Juan compares，天氣為nearby places
Annual averages, and the difference against San Juan.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Virgin Islands National Park | 144 km | 25°C | 1°C cooler | 1021 mm |
| Dominican Republic | 403 km | 26°C | 1°C cooler | 1435 mm |
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 26°C (79°F)，天氣為晴朗. 濕度 is 92% and wind is 4 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 12:37 AM.
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 20, 2026 at 12:37 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
