What is the air quality in San Isidro today?

The current Air Quality Index (AQI) in San Isidro is 21 (Good). PM2.5 concentration is 4.99 µg/m³.

What is the temperature in San Isidro right now?

The current temperature in San Isidro is 15.1°C (feels like 15.1°C). Humidity is 84.7% and wind speed is 24.1 km/h.

Is it safe to go outside in San Isidro?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 4.4 (Moderate).

Air Quality in San Isidro, Costa Rica

Cloudy

15.1°C · 84.7% humidity

15.1°

Feels 15.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

24 5am

21 8am

24 11am

24 2pm

24 5pm

27 8pm

34 11pm

34 2am

View AQI history for San Isidro →

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

84.7%

Humidity

24.1 km/h

Wind NE

1015.3 hPa

Pressure

4.4

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.99 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for San Isidro?

Temperature & Precipitation

PM2.54.99 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX4.4

Moderate

Both models agree Avg diff: 6.5°C

What cities are near San Isidro?

18 Paraíso 21 Turrialba 18 Cartago 18 San Diego 18 Patarrá 18 San Miguel 18 Aserrí 18 San Rafael Arriba 18 San Juan de Dios 18 Curridabat

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

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T14:36 UTC.