San Juan Clima and Average Tiempo
Clima of San Juan: average temperatures, rainfall and seasons month by month.
Clima in San Juan month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mes | Máx. media | Mín. media | Precipitaciones | Valoración |
|---|---|---|---|---|
| enero | 27° | 24° | 57 mm | ★★★★☆ |
| febrero | 27° | 23° | 118 mm | ★★★★☆ |
| marzo | 27° | 23° | 77 mm | ★★★★☆ |
| abril | 28° | 24° | 123 mm | ★★★★☆ |
| may | 29° | 25° | 87 mm | ★★★★☆ |
| junio | 30° | 26° | 62 mm | ★★★★☆ |
| julio | 30° | 26° | 62 mm | ★★★★☆ |
| agosto | 30° | 26° | 118 mm | ★★★★☆ |
| septiembre | 30° | 26° | 79 mm | ★★★★☆ |
| octubre | 30° | 26° | 126 mm | ★★★☆☆ |
| noviembre | 29° | 25° | 134 mm | ★★★☆☆ |
| diciembre | 28° | 24° | 87 mm | ★★★★☆ |
Clima type: Temperate. Fuente: Open-Meteo archive (ERA5).
Recent extremes in San Juan
Altoest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How San Juan compares con 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 |
Mejor época para visitar San Juan
Go in enero, marzo, may, junio, julio, septiembre and diciembre. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: agosto, octubre and noviembre – expect the least comfortable mix of heat, cold or rain.
What this means for San Juan
Today is slightly warmer than average for octubre. The forecast high of 32°C is 1.5°C above the 30°C typical for this month.
A 98% 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 junio a agosto.
The gap between the warmest and coldest month averages 3°C – an unusually even climate through the year.
What a pack, what a skip
- Lightweight, light-coloured clothing and a refillable water bottle
- dom.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 agosto, octubre and noviembre – historically the least comfortable months here.
Resumen
San Juan is a city in Puerto Rico. San Juan is known for Old San Juan forts and beaches. Tiene una población de aproximadamente 340.000.
Ahora mismo hay 29°C (83°F) in San Juan con cubierto. La sensación térmica es de 34°C. Hoy las temperaturas van de 27°C a 32°C. La probabilidad de precipitación es del 98%. Las condiciones para hacer turismo obtienen 6.7/10 – aceptable — planifica según el tiempo.
La mejor época para visitar San Juan is enero, marzo, may, junio, julio, septiembre and diciembre. El clima es temperate. agosto, octubre and noviembre suelen ser los meses menos cómodos. octubre es el mes más cálido, con máximas medias cercanas a 30°C, mientras febrero es el mes más frío, con mínimas cercanas a 23°C.
Entre los lugares destacados cercanos se encuentran Virgin Islands National Park.
En términos sencillos. Today is slightly warmer than average for octubre. The forecast high of 32°C is 1.5°C above the 30°C typical for this month. The best window a be outside is roughly 7 AM a 10 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in San Juan today at 8.8/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about San Juan
| Tipo | City |
|---|---|
| País | Puerto Rico |
| Continente | América del Norte |
| Coordenadas | 18°27′55.8″N 66°6′20.5″W (18.4655, -66.1057) |
| Población | 340.000 |
| Known for | Old San Juan forts and beaches |
| Hora local | 8:38 PM (UTC-04:00) |
| Mejores meses | enero, marzo, may, junio, julio, septiembre and diciembre |
| Clima | Temperate |
Tiempo map for San Juan
Animated model layers. Pick a layer a load it.
Animated layers by Vientoy. For pin-level detail and nearby places, see the interactive map below.
Explore San Juan
Every topic we hold for this place, and the same topic for the places around it.
Clima 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 América del Norte.
What is the weather like in San Juan ahora mismo?
It is currently 29°C (83°F) con cubierto. Humedad is 79% and wind is 11 km/h.
When is the best time a visit San Juan?
enero, marzo, may, junio, julio, septiembre and diciembre offer the most comfortable conditions in San Juan, which has a temperate climate. agosto, octubre and noviembre 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 hora local is 8:38 PM.
How many people live in San Juan?
San Juan has a population of approximately 340.000.
What are the top things a 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. |
|---|---|
| Pronóstico and observations | Open-Meteo (ECMWF and national models). |
| Calidad del aire and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Clima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Tiempo 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 octubre 24, 2026 at 8:38 PM hora local. Live blocks refresh every 15 minutes; climate averages monthly.
