Live

Siena Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Siena

Last Updated: 2026-09-29 04:21:01 (Local Time)

location image
Live AQI
63AQI (US)
Air Quality is
Moderate
PM2.5 :  18 µg/m³
pm10 :  22 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Siena
clear

19 °C

Clear
Humidity
Humidity80 %

Wind Speed
Wind Speed7.2 km/h

UV Index
UV Index0

Last Updated: 2026-09-29 04:21:01 (Local Time)
Rank581st

Currently, Siena ranks 581st among the cities with the highest AQI levels in the world.

Map

Siena

Major Air Pollutants

Siena

AQI Graph

Historical Air Quality Data

Siena

Siena
AQI (US)
.
28-09-2026Time29-09-2026
10
Min. AQI (US)4:31pm
64
Max. AQI (US)3:01am

AQI (US) Trends - Annual Air Quality Changes

Siena, Tuscany, Italy

Siena's Locations

Real-time Air Pollution Level

locations
Status
AQI (US)
PM₂.₅(µg/m³)
PM₁₀(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
75
24
27
15
77
Good
50
12
16
19
80

Italy's Metro Cities

Air Quality Index

Health Advice For People Living In

Siena

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI (US)

Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust



Prevent Health Problems: Understand Your Risks

Siena

asthma due to air pollution in SienaAsthma
heart due to air pollution in SienaHeart Issues
allergy due to air pollution in SienaAllergies
sinus due to air pollution in SienaSinus
flu due to air pollution in SienaCold/Flu
copd due to air pollution in SienaChronic (COPD)
Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2026

Italy

Analyze the real-time most air polluted cities in the country.

Siena's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets

Air Quality FAQs

at Siena

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Siena?

The current real-time AQI (US) level in Siena is 63 (Moderate). This was last updated 2026-09-29 04:21:01 (Local Time).

2. When was the best AQI (US) level in Siena in the last 24 hours?

The best AQI (US) level was 10 (Good) at 4:31 PM, Sep 28, 2026 (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in Siena in the last 24 hours?

The worst AQI (US) level was 64 (Moderate) at 3:01 AM (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in Siena during last 24 hours?

The AQI (US) levels in Siena have been fluctuating throughout the last 24 hours. The levels have increased by highest 64 at 3:01 AM (Local Time), lowest 10 at 4:31 PM, Sep 28, 2026 (Local Time).

5. What actions are recommended as per the current AQI (US) level in Siena?

Current AQI (US) levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.