Hourly Weather in Greenbrae, California, United States
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
6 km/h
Calm
5 km/h
Calm
9 km/h
Light
13 km/h
Light
17 km/h
Breezy
21 km/h
Breezy
22 km/h
Breezy
20 km/h
Breezy
18 km/h
Breezy
Humidity
89%
Extremely humid
84%
Extremely humid
75%
Extremely humid
66%
Humid
61%
Humid
59%
Comfortable
56%
Comfortable
54%
Comfortable
52%
Comfortable
Visibility
15 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
16 km
Good
Pressure
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
1017 hPa
Normal
Clouds
11%
1%
0%
0%
0%
0%
0%
0%
0%
Dew point
13°
13°
13°
12°
12°
13°
13°
13°
12°
UV Index
1
2
4
7
8
9
9
8
5
Air quality
15
Good
19
Good
24
Good
28
Good
32
Good
36
Good
31
Good
33
Good
36
Good
Pollen index
Tree
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Weed
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Grass
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
0 / 5
Pollutants
Low risk
High risk
PM10
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
11.9 μg/m3
7.9 μg/m3
8.7 μg/m3
9.3 μg/m3
PM25
2.7 μg/m3
3.4 μg/m3
4.2 μg/m3
5 μg/m3
5.7 μg/m3
6.4 μg/m3
5.5 μg/m3
5.9 μg/m3
6.4 μg/m3
NO2
1.4 ppb
1.3 ppb
1.1 ppb
1.1 ppb
1 ppb
1 ppb
0.8 ppb
0.9 ppb
0.9 ppb
SO2
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
0.3 ppb
CO
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
0.1 ppb
O3
16.2 ppb
17.3 ppb
18.5 ppb
19.7 ppb
20.9 ppb
22 ppb
23.6 ppb
24 ppb
24.4 ppb