Cities / Puerto Rico / San Juan

26°

☀️ Viejo San Juan weather

Clear sky. No rain expected in the next few hours.

Feels like 30° Wind 12 km/h SE Humidity 80% UV 0 Air Good ☀ 06:10 - 18:37

Right now it is 26° in Viejo San Juan with clear skies, it feels more like 30° and today's high is 32° with an overnight low of 25°. The sun rises at 06:10 and sets at 18:37, giving 12h 27m of daylight. Over the coming week highs range from 33° to 34° - a steady stretch with little day-to-day change.

Viejo San Juan is in San Juan, Puerto Rico, sitting 24 m above sea level. Local time is America/Puerto_Rico (UTC−4), and every time on this page is shown in it.

Next 24 hours - temperature

24° 29° 33° 33° 24° 20:00 · 26.3° · 0 mm 21:00 · 25.7° · 0 mm 22:00 · 25.2° · 0 mm 23:00 · 24.8° · 0 mm 00:00 · 24.4° · 0 mm 01:00 · 24.2° · 0 mm 02:00 · 24.1° · 0 mm 03:00 · 24.1° · 0 mm 04:00 · 24° · 0 mm 05:00 · 24° · 0 mm 06:00 · 24° · 0 mm 07:00 · 25.1° · 0 mm 08:00 · 27.2° · 0 mm 09:00 · 29° · 0 mm 10:00 · 30.6° · 0 mm 11:00 · 31.8° · 0 mm 12:00 · 32.6° · 0 mm 13:00 · 32.6° · 0 mm 14:00 · 30.6° · 1.1 mm 15:00 · 30.9° · 0.9 mm 16:00 · 31° · 0.1 mm 17:00 · 30.7° · 0 mm 18:00 · 29.3° · 0.1 mm 19:00 · 27.5° · 0 mm

Precipitation

20:00 · 0 mm 20:00 21:00 · 0 mm 22:00 · 0 mm 23:00 · 0 mm 23:00 00:00 · 0 mm 01:00 · 0 mm 02:00 · 0 mm 02:00 03:00 · 0 mm 04:00 · 0 mm 05:00 · 0 mm 05:00 06:00 · 0 mm 07:00 · 0 mm 08:00 · 0 mm 08:00 09:00 · 0 mm 10:00 · 0 mm 11:00 · 0 mm 11:00 12:00 · 0 mm 13:00 · 0 mm 14:00 · 1.1 mm 14:00 15:00 · 0.9 mm 16:00 · 0.1 mm 17:00 · 0 mm 17:00 18:00 · 0.1 mm 19:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
20:00 ☀️ 26.3° 28.8° - Clear sky
21:00 🌤️ 25.7° 28.5° - Mostly clear
22:00 ☁️ 25.2° 28.1° - Overcast
23:00 ☀️ 24.8° 27.8° - Clear sky
00:00 ☀️ 24.4° 27.3° - Clear sky
01:00 ☀️ 24.2° 27.1° - Clear sky
02:00 ☀️ 24.1° 27.2° - Clear sky
03:00 ☀️ 24.1° 27.4° - Clear sky
04:00 ☁️ 24° 27.3° - Overcast
05:00 🌤️ 24° 27.5° - Mostly clear
06:00 ☀️ 24° 27.6° - Clear sky
07:00 ☀️ 25.1° 28.8° - Clear sky

Next 16 days

Today☀️ 32°25°0.2mm Fri 4🌧️ 33°24°2.2mm Sat 5☁️ 33°25°0.2mm Sun 6🌦️ 34°26°1.4mm Mon 7🌧️ 34°26°6.8mm Tue 8🌧️ 33°25°9.3mm Wed 9☀️ 33°25°0.3mm Thu 10☁️ 32°25°0.6mm Fri 11🌦️ 31°25°2.7mm Sat 12☀️ 33°26°0.3mm Sun 13⛅ 32°25°0.3mm Mon 14☀️ 33°24°0.3mm Tue 15🌤️ 33°24° Wed 16🌦️ 33°24°1.2mm Thu 17🌤️ 34°24° Fri 18☁️ 32°25°0.6mm
☀️ TodaySeptember 3rd Avg 28° Low 25° at 06:00 High 32° at 14:00 0.2 mm rain Wind ~22 km/h
Clear Cloudy Clear
00:00 26°
02:00 25° 0.1mm
04:00 25°
06:00 25°
08:00 27°
10:00 30°
12:00 30°
14:00 32°
16:00 31°
18:00 29°
20:00 26°
22:00 25°
🌧️ FridaySeptember 4th Avg 28° Low 24° at 04:00 High 33° at 12:00 2.2 mm rain Feels 35° Wind ~23 km/h
Clear Clear Cloudy Rain Clear
00:00 24°
02:00 24°
04:00 24°
06:00 24°
08:00 27°
10:00 31°
12:00 33°
14:00 31° 1.1mm
16:00 31° 0.1mm
18:00 29° 0.1mm
20:00 27°
22:00 26°
☁️ SaturdaySeptember 5th Avg 28° Low 25° at 02:00 High 33° at 13:00 0.2 mm rain Wind ~22 km/h
Clear Cloudy Cloudy
00:00 26° 0.1mm
02:00 25°
04:00 25° 0.1mm
06:00 26°
08:00 28°
10:00 31°
12:00 33°
14:00 33°
16:00 32°
18:00 30°
20:00 27°
22:00 27°
🌦️ SundaySeptember 6th Avg 29° Low 26° at 06:00 High 34° at 14:00 1.4 mm rain Feels 36° Wind ~23 km/h
Cloudy Cloudy Rain
00:00 26°
02:00 26°
04:00 26°
06:00 26°
08:00 28°
10:00 31°
12:00 33°
14:00 34° 0.7mm
16:00 32°
18:00 30° 0.2mm
20:00 28°
22:00 27°
🌧️ MondaySeptember 7th Avg 29° Low 26° at 06:00 High 34° at 13:00 6.8 mm rain Feels 36° Wind ~23 km/h
Clear Rain Rain
00:00 26°
02:00 26°
04:00 26°
06:00 26°
08:00 29°
10:00 32°
12:00 34° 0.2mm
14:00 34° 0.9mm
16:00 33°
18:00 30° 0.1mm
20:00 26° 3mm
22:00 26°
🌧️ TuesdaySeptember 8th Avg 28° Low 25° at 06:00 High 33° at 13:00 9.3 mm rain Wind ~22 km/h
Clear Rain Cloudy Clear
00:00 26°
02:00 26°
04:00 26°
06:00 25° 3.5mm
08:00 27° 0.8mm
10:00 31°
12:00 32°
14:00 33°
16:00 32°
18:00 29°
20:00 27°
22:00 26°
☀️ WednesdaySeptember 9th Avg 28° Low 25° at 04:00 High 33° at 13:00 0.3 mm rain Wind ~24 km/h
Rain Clear
00:00 26° 0.1mm
02:00 25° 0.1mm
04:00 25°
06:00 25°
08:00 27°
10:00 30°
12:00 32°
14:00 33°
16:00 31°
18:00 29°
20:00 27°
22:00 26°
☁️ ThursdaySeptember 10th Avg 28° Low 25° at 04:00 High 32° at 14:00 0.6 mm rain Wind ~23 km/h
Clear Rain Clear Partly Cloudy Cloudy Cloudy
00:00 26°
02:00 25°
04:00 25° 0.1mm
06:00 26° 0.1mm
08:00 28° 0.1mm
10:00 31°
12:00 32°
14:00 32°
16:00 31°
18:00 29°
20:00 27°
22:00 26°
🌦️ FridaySeptember 11th Avg 27° Low 25° at 07:00 High 31° at 14:00 2.7 mm rain Feels 33° Wind ~17 km/h
Cloudy Rain Cloudy
00:00 26°
02:00 26°
04:00 25° 0.2mm
06:00 25° 0.5mm
08:00 25° 0.5mm
10:00 27° 0.2mm
12:00 29°
14:00 31°
16:00 30°
18:00 29°
20:00 27°
22:00 26°
☀️ SaturdaySeptember 12th Avg 29° Low 26° at 01:00 High 33° at 13:00 0.3 mm rain Wind ~23 km/h
Partly Cloudy Clear Rain
00:00 26°
02:00 26°
04:00 26°
06:00 27°
08:00 29°
10:00 31°
12:00 33°
14:00 33°
16:00 32°
18:00 29°
20:00 26°
22:00 26° 0.1mm
⛅ SundaySeptember 13th Avg 28° Low 25° at 04:00 High 32° at 13:00 0.3 mm rain Wind ~24 km/h
Clear Rain Clear Partly Cloudy Clear
00:00 26°
02:00 25°
04:00 25°
06:00 25° 0.1mm
08:00 28° 0.1mm
10:00 30°
12:00 32°
14:00 32°
16:00 31°
18:00 29°
20:00 26°
22:00 26°
☀️ MondaySeptember 14th Avg 28° Low 24° at 04:00 High 33° at 14:00 0.3 mm rain Wind ~26 km/h
Clear Rain Clear
00:00 25°
02:00 25°
04:00 24° 0.1mm
06:00 25°
08:00 28°
10:00 31°
12:00 33°
14:00 33°
16:00 32°
18:00 30°
20:00 27°
22:00 26°
🌤️ TuesdaySeptember 15th Avg 28° Low 24° at 04:00 High 33° at 13:00 Wind ~22 km/h
Clear Partly Cloudy Cloudy
00:00 25°
02:00 25°
04:00 24°
06:00 25°
08:00 28°
10:00 31°
12:00 33°
14:00 33°
16:00 32°
18:00 30°
20:00 26°
22:00 25°
🌦️ WednesdaySeptember 16th Avg 28° Low 24° at 04:00 High 33° at 13:00 1.2 mm rain Wind ~20 km/h
Partly Cloudy Clear Rain Cloudy
00:00 25°
02:00 25°
04:00 24°
06:00 25°
08:00 28°
10:00 31°
12:00 33° 0.2mm
14:00 33° 0.2mm
16:00 32° 0.2mm
18:00 29°
20:00 26°
22:00 26°
🌤️ ThursdaySeptember 17th Avg 28° Low 24° at 04:00 High 34° at 13:00 Wind ~24 km/h
Cloudy Clear Cloudy
00:00 25°
02:00 24°
04:00 24°
06:00 25°
08:00 28°
10:00 31°
12:00 33°
14:00 33°
16:00 32°
18:00 29°
20:00 27°
22:00 26°
☁️ FridaySeptember 18th Avg 28° Low 25° at 04:00 High 32° at 13:00 0.6 mm rain Wind ~25 km/h
Cloudy Rain Cloudy Rain Cloudy
00:00 26°
02:00 26°
04:00 25°
06:00 26° 0.1mm
08:00 28° 0.1mm
10:00 31°
12:00 32°
14:00 32°
16:00 31°
18:00 29° 0.1mm
20:00 27° 0.1mm
22:00 26°

Sun

☀️ Sunrise 06:10 · Sunset 18:37

12h 27m of daylight · America/Puerto_Rico

Air quality

PM2.5 4.1 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

San Juan · 1.1 km Puerts de Tierra · 1.4 km Isla Grande · 2.6 km Cataño · 2.8 km Bay View · 2.9 km Residencial Matienzo Cintron · 3 km

Tools for Viejo San Juan

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Viejo San Juan weather

Will it rain in Viejo San Juan today?

Only a trace - around 0.2 mm is expected in Viejo San Juan today, not enough to need an umbrella.

What is the temperature in Viejo San Juan right now?

It is 26° in Viejo San Juan right now, though it feels closer to 30°. Today runs between a low of 25° and a high of 32°.

What time is sunrise and sunset in Viejo San Juan?

The sun rises at 06:10 and sets at 18:37 local time in Viejo San Juan today, giving 12h 27m of daylight.

What is the air quality in Viejo San Juan?

PM2.5 in Viejo San Juan is currently 4.1 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Viejo San Juan forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Viejo San Juan best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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