San Juan
Today
Today weather in San Juan
Tuesday, 16th September 2025
31°
Moderate rain
Official weather alert: Hydrologic Outlook. Today, San Juan is set to face a notably hot day, with temperatures spiking up to 31 °C and offering slight relief at 28 °C by night. It'll be quite breezy in San Juan Today with average wind speeds of 25 km/h. Heavy showers are forecasted, reaching up to 11.25 mm. Given the warmth, it might feel a bit stifling.
31° / 28°
Temp
89%
Rain
25 km/h
Wind
81%
Humidity
San Juan Weather Pages
San Juan hourly forecast for today
Scroll right to see more weather forecasts for San Juan today
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 06:00 | 06:12 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 18:25 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  |  |  | | | | |  |  |  | | |  |  | | | | |  |  |  |  |  | | | | Next |
| temperatures | 28.3° | 28.2° | 28.1° | 28.2° | 28.1° | 28.1° | 28.2° | Sunrise | 28.4° | 28.5° | 28.8° | 29.9° | 30.4° | 30.2° | 32.2° | 30.5° | 30.4° | 30° | 29.5° | 29.1° | Sunset | 28.8° | 28.7° | 28.5° | 28.4° | 28.2° | |
| feels like | 34.5° | 33.7° | 33.2° | 33° | 33° | 33° | 33.1° | 33.2° | 33.4° | 33.9° | 37° | 38.1° | 38.6° | 38.8° | 38.3° | 37.4° | 36.5° | 35.7° | 34.8° | 34.2° | 34° | 33.6° | 33.5° | 33.5° | |||
| wind speed | 17 km/h | 17 km/h | 17 km/h | 17 km/h | 17 km/h | 16 km/h | 17 km/h | 17 km/h | 21 km/h | 22 km/h | 23 km/h | 23 km/h | 24 km/h | 26 km/h | 26 km/h | 24 km/h | 22 km/h | 22 km/h | 20 km/h | 20 km/h | 19 km/h | 18 km/h | 20 km/h | 20 km/h | |||
| wind degree | 96° | 100° | 101° | 97° | 96° | 79° | 84° | 87° | 83° | 86° | 87° | 88° | 82° | 75° | 77° | 76° | 73° | 72° | 78° | 74° | 73° | 70° | 70° | 73° | |||
| wind direction | E | E | ESE | E | E | E | E | E | E | E | E | E | E | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | |||
| Precipitation | 0 mm | 0 mm | 5.1 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 1.6 mm | 0 mm | 0 mm | 4.6 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 0% | 0% | 100% | 0% | 0% | 0% | 0% | 0% | 100% | 0% | 0% | 100% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 92% | 86% | 82% | 81% | 80% | 83% | 83% | 81% | 78% | 80% | 79% | 79% | 78% | 71% | 81% | 75% | 74% | 78% | 81% | 80% | 79% | 80% | 81% | 84% | |||
| dew point | 26.7° | 25.4° | 24.8° | 24.6° | 24.5° | 24.9° | 24.9° | 24.8° | 24.4° | 24.8° | 24.9° | 27° | 26.5° | 27.4° | 27° | 25.8° | 25.1° | 25.3° | 25.5° | 24.9° | 24.6° | 24.9° | 24.8° | 25.2° | |||
| visibility | 9 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 16 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 61% | 23% | 68% | 46% | 37% | 24% | 24% | 27% | 81% | 60% | 63% | 70% | 34% | 50% | 29% | 30% | 33% | 67% | 100% | 90% | 39% | 19% | 39% | 59% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 1.3 | 3.7 | 6.9 | 9.9 | 11.7 | 11.2 | 9 | 5.9 | 3 | 1 | 0.2 | 0 | 0 | 0 | 0 | 0 |
View of San Juan today
Explore San Juan live webcam feed to see how the weather is shaping up today in San Juan. See what people are wearing, check out the sky, and get a sense of the atmosphere before you step outside.
Stay informed and make the most of your day with our live weather updates from San Juan today.
Weather in San Juan today
The temperature today in San Juan is expected to be typical for this time of year, with a forecast of 31 °C, closely aligning with the historical average for 16th of September.
temperatures
31 °C
rain
11.3 mm
wind
25 km/h
UV
Low
San Juan daylight overview ☀️
Today in San Juan, The sun rises at 06:12 and sets at 18:25, giving a total daylight duration of 12 hours and 13 minutes.
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What to wear today in San Juan? clothing recommendations
Stay comfortably stylish - your tailored guide for today's San Juan forecast.
Short-sleeve shirt
Shorts
Lightweight pants
Breathable footwear
Sunglasses
Wide brimmed hat
Sunscreen
Flip flop
Umbrella
The weather today in San Juan - FAQ
What is the maximum temperature for today in San Juan?
The maximum temperature for today in San Juan is expected to be 31° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in San Juan? 🌧️
Yes, there is a 89% chance of rain in San Juan today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in San Juan? 🌀
The wind in San Juan is expected to blow at 25 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in San Juan today?
Given the forecast of 31 °C with a 89% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in San Juan today.
What is the sunrise and sunset time for San Juan today?
The sun is expected to rise at 06:12 and set at 18:25 in San Juan.
How accurate is the weather forecast San Juan today? ✅
San Juan weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is San Juan?Get accurate weather forecasts for San Juan, located at latitude 18.466 and longitude -66.106. Stay updated with localized weather information tailored for San Juan.
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