San Juan
Today
Today weather in San Juan
Saturday, 12th September 2026
30°
Patchy rain possible
Feels like 34° · Low 27°
Official weather alert: Heat Advisory. San Juan will have a warm day Today with temperatures ascending to 30 °C and descending to around 26 °C after sunset. It'll be quite breezy in San Juan Today with average wind speeds of 26 km/h. Intermittent light showers are likely, with about 0.39 mm expected.
30° / 27°
Temp
39%
Rain
26 km/h
Wind
70%
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 | 06:11 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 18:29 | 19:00 | 20:00 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | | |  | | | |  | | | | |  | | | |  |  | | | | | Next |
| temperatures | 27.7° | 27.6° | 27.5° | 27.4° | 27.1° | 26.9° | 27.1° | Sunrise | 27.6° | 28.3° | 28.9° | 29.2° | 29.7° | 30.1° | 30.2° | 30° | 29.7° | 29.3° | 29° | 28.4° | Sunset | 28° | 27.9° | 27.8° | 27.7° | 28.2° | |
| Feels like | 30.7° | 30.7° | 30.6° | 30.3° | 29.5° | 29.1° | 29.5° | 30.3° | 31.2° | 31.7° | 32.1° | 32.9° | 33.5° | 33.7° | 33.4° | 33° | 32.5° | 32.4° | 31.3° | 30.9° | 30.7° | 30.8° | 30.8° | 31.4° | |||
| wind speed | 23 km/h | 20 km/h | 20 km/h | 21 km/h | 21 km/h | 20 km/h | 20 km/h | 22 km/h | 21 km/h | 23 km/h | 23 km/h | 22 km/h | 23 km/h | 25 km/h | 26 km/h | 27 km/h | 26 km/h | 25 km/h | 24 km/h | 25 km/h | 25 km/h | 25 km/h | 25 km/h | 25 km/h | |||
| wind degree | 104° | 106° | 106° | 110° | 111° | 108° | 105° | 102° | 99° | 96° | 95° | 89° | 78° | 72° | 67° | 70° | 73° | 78° | 78° | 76° | 77° | 78° | 83° | 85° | |||
| wind direction | ESE | ESE | ESE | ESE | ESE | ESE | ESE | ESE | E | E | E | E | E | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | E | E | |||
| Precipitation | 0 mm | 0.1 mm | 0 mm | 0.1 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 | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 22% | 23% | 20% | 21% | 20% | 15% | 21% | 21% | 20% | 17% | 14% | 14% | 15% | 14% | 9% | 12% | 16% | 17% | 17% | 18% | 19% | 22% | 22% | 21% | |||
| 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 | 75% | 76% | 77% | 76% | 76% | 76% | 75% | 73% | 70% | 66% | 64% | 64% | 62% | 62% | 62% | 64% | 66% | 68% | 69% | 71% | 72% | 74% | 75% | 73% | |||
| dew point | 22.9° | 23.1° | 23.2° | 22.8° | 22.5° | 22.3° | 22.3° | 22.3° | 22.2° | 21.8° | 21.8° | 22° | 22.1° | 22.1° | 22.1° | 22.2° | 22.2° | 22.5° | 22.1° | 22.3° | 22.4° | 22.8° | 23° | 22.8° | |||
| visibility | 10 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 | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 7.8 km | 8.4 km | 10 km | 10 km | 10 km | |||
| cloud cover | 100% | 86% | 78% | 82% | 83% | 64% | 95% | 100% | 100% | 100% | 91% | 90% | 98% | 96% | 57% | 79% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.8 | 2 | 4.5 | 7.2 | 9 | 9.2 | 7.5 | 4.8 | 2.3 | 0.8 | 0.1 | 0 | 0 | 0 | 0 | 0 |
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 30 °C, closely aligning with the historical average for 12th of September.
temperatures
30 °C
rain
0.4 mm
wind
26 km/h
UV
Very High
San Juan daylight overview ☀️
Today in San Juan, The sun rises at 06:11 and sets at 18:29, giving a total daylight duration of 12 hours and 18 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
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 30° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in San Juan? 🌧️
Yes, there is a 39% 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 26 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 30 °C with a 39% 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 06:11 and set at 18:29 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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