The AQI in Porto is currently 55 — Moderate. Acceptable for most; unusually sensitive people may notice minor symptoms.
| Measurement | Value |
|---|---|
| PM2.5 | 55 |
| PM10 | 54 |
| Ozone (O₃) | 49.6 |
| NO₂ | 2.3 |
| Temperature (°C) | 25 |
| Humidity (%) | 50 |
| Pressure (hPa) | 1018 |
| Wind (m/s) | 2 |
| Wind Gust (m/s) | 9.7 |
| Dew Point (°C) | 14 |
| Pollutant | Wed, May 27 | Thu, May 28 | Fri, May 29 | Sat, May 30 | Sun, May 31 | Mon, Jun 1 |
|---|---|---|---|---|---|---|
| PM2.5 |
66
62–93
|
56
55–65
|
55
45–66
|
40
22–54
|
25
15–38
|
18
15–18
|
| PM10 |
34
27–43
|
26
21–29
|
28
22–35
|
19
10–29
|
11
7–15
|
7
6–7
|
| Ozone |
12
4–25
|
16
8–21
|
14
11–19
|
12
5–18
|
11
5–18
|
13
10–13
|
| UV Index |
1
0–8
|
1
0–8
|
1
0–9
|
1
0–9
|
1
0–10
|
0
0–0
|