San Juan Wetter Vorhersage
San Juan weather: 28°C, Überwiegend klar. Stündlich forecast, 14-day outlook, UV, air quality and the best time und visit.
San Juan weather in September
One of the best months und visit San Juan.
September runs 1°C warmer than the annual average in San Juan.
Compare mit August.
Wetter map for San Juan
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Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Klima in San Juan month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Monat | Durchschnittliches Maximum | Durchschnittliches Minimum | Niederschlag | Bewertung |
|---|---|---|---|---|
| Januar | 27° | 24° | 57 mm | ★★★★☆ |
| Februar | 27° | 23° | 118 mm | ★★★★☆ |
| März | 27° | 23° | 77 mm | ★★★★☆ |
| April | 28° | 24° | 123 mm | ★★★★☆ |
| Mai | 29° | 25° | 87 mm | ★★★★☆ |
| Juni | 30° | 26° | 62 mm | ★★★★☆ |
| Juli | 30° | 26° | 62 mm | ★★★★☆ |
| August | 30° | 26° | 118 mm | ★★★★☆ |
| September | 30° | 26° | 79 mm | ★★★★☆ |
| Oktober | 30° | 26° | 126 mm | ★★★☆☆ |
| November | 29° | 25° | 134 mm | ★★★☆☆ |
| Dezember | 28° | 24° | 87 mm | ★★★★☆ |
Klima type: Temperate. Quelle: Open-Meteo archive (ERA5).
Beste Reisezeit San Juan
Go in Januar, März, Mai, Juni, Juli, September and Dezember. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: August, Oktober and November – expect the least comfortable mix of heat, cold or rain.
What und pack, what und skip
- Lightweight, light-coloured clothing and a refillable water bottle
- So.glasses, 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 August, Oktober and November – historically the least comfortable months here.
How San Juan compares mit 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 |
Vorhersage für San Juan nach Zeitraum ansehen
San Juan weather – more answers
Explore San Juan
Every topic we hold for this place, and the same topic for the places around it.
Wetter for related places
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 jetzt?
It is currently 28°C (82°F) mit Überwiegend klar. Luftfeuchtigkeit is 79% and wind is 7 km/h.
When is the best time und visit San Juan?
Januar, März, Mai, Juni, Juli, September and Dezember offer the most comfortable conditions in San Juan, which has a temperate climate. August, 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 Ortszeit is 9:53 PM.
How many people live in San Juan?
San Juan has a population of approximately 340.000.
What are the top things und 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. |
|---|---|
| Vorhersage and observations | Open-Meteo (ECMWF and national models). |
| Luftqualität and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Wetter 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 9:53 PM Ortszeit. Live blocks refresh every 15 minutes; climate averages monthly.
