San Juan weather for today, tomorrow and the next 14 days, compared across three independent forecast sources so you can see where they agree before you plan your day. Right now it is 31°C and sunny in San Juan. Tomorrow's forecast: highs of 31°C, lows of 25°C with a 88% chance of rain.
Sources: Open-Meteo, OpenWeather, WeatherAPI · Updated every 12 hours
San JuanPuerto Rico
Updated 10:00 AM
Sunny
Feels like 37°
Forecast Comparison
See how independent weather sources forecast the same location right now.
Forecast agreement
Sources show notable variationTemperature range
28° – 31°
Rain probability
12% – 72%
Wind speed
8 km/h – 13 km/h
Temperature by provider
Hourly forecast
16-day forecast
Rain forecast
Precipitation probability: 88%Hourly precipitation timeline
Wind
Direction: E
Current wind
13 km/h
Gusts
17 km/h
Hourly wind
Daily wind
Weather alerts
No active weather alerts.
Weather map
San Juan this time of year
- Days and nights are close, only about 3°C apart.
- October falls in San Juan's wetter season, when heavy showers are common.
- It's humid — around 79% — so the heat feels heavier.
Planning a trip to San Juan? Save or share this forecast.
San Juan weather overview: climate, seasons and what to expect
San Juan, Puerto Rico, sits at approximately 18.47°N, 66.11°W and is home to about 418,000 people. This page compares forecasts from three independent weather providers — Open-Meteo, OpenWeather and WeatherAPI — so you can see at a glance where they agree and where they differ. The data refreshes every 12 hours via ISR.
Climate-wise, San Juan has a tropical savanna climate: warm all year, with a clear dry season and a rainy season. Expect the most heat in August (about 31°C by day) and the chilliest nights in February (around 24°C). Most rain falls in November, roughly 164 mm. The nearest places with their own forecast page are Fajardo (50 km), Ponce (75 km) and Rincón (122 km).
Frequently asked questions
- What is the weather in San Juan today?
- Right now San Juan shows sunny conditions at around 31°C (feels like 37°C), based on OpenWeatherMap. The chance of rain today is about 12%. Compare this with the other sources above for a fuller picture.
- What is the weather in San Juan tomorrow?
- Tomorrow in San Juan: expect a high of 31°C and a low of 25°C, with a 88% chance of rain. See the hourly breakdown above for more detail.
- Will it rain in San Juan today?
- The precipitation probability for San Juan is around 12% according to OpenWeatherMap. Check the Rain forecast section for the hour-by-hour breakdown and compare with other sources.
- What is the 14-day forecast for San Juan?
- The 14-day forecast above shows daily highs, lows and rain probability for San Juan from multiple sources; compare them to see how confident the outlook is.
Nearby cities
Highs 27° – 30°C (warmest in Sep, coolest in Jan)
Highs 28° – 31°C (warmest in Aug, coolest in Jan)
Highs 27° – 30°C (warmest in Aug, coolest in Mar)
Highs 26° – 29°C (warmest in Sep, coolest in Feb)
Highs 26° – 29°C (warmest in Sep, coolest in Feb)
Highs 26° – 29°C (warmest in Sep, coolest in Mar)
Looking for another country? Browse all 227+ countries