What is the air quality in San Juan today?

The current Air Quality Index (AQI) in San Juan is 24 (Good). PM2.5 concentration is 5.8 µg/m³.

What is the temperature in San Juan right now?

The current temperature in San Juan is 22.5°C (feels like 22.5°C). Humidity is 99.0% and wind speed is 6.1 km/h.

Is it safe to go outside in San Juan?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in San Juan, Peru

Overcast

22.5°C · 99.0% humidity

22.5°

Feels 22.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

— 7pm

—

— 10pm

—

— 1am

—

— 4am

—

— 7am

—

— 10am

—

— 1pm

—

— 4pm

—

View AQI history for San Juan →

San Juan's air quality is influenced by vehicle emissions, industrial activity, and seasonal agricultural burning. Pollution patterns vary with dry and wet seasons.

99.0%

Humidity

6.1 km/h

Wind WSW

1007.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for San Juan?

Temperature & Precipitation

PM2.55.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for San Juan?

10-22

29.3° 22.5°

2.06 mm

10-23

33.2° 21.8°

1.81 mm

10-24

33.8° 23.5°

4.37 mm

10-25

36.6° 22.8°

4.94 mm

10-26

36.7° 24.1°

0.19 mm

10-27

29.6° 22.4°

5.62 mm

10-28

34.3° 23.6°

3.0 mm

Both models agree Avg diff: 3.0°C

What cities are near San Juan?

24 Belen 24 Iquitos

Get AQI alerts for San Juan

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-22T03:07 UTC.