Hourly Weather in Castle Cornet, Guernsey and Alderney
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
29 km/h
Breezy
29 km/h
Breezy
32 km/h
Breezy
32 km/h
Strong
31 km/h
Breezy
32 km/h
Breezy
33 km/h
Strong
35 km/h
Strong
36 km/h
Strong
Humidity
87%
Extremely humid
90%
Extremely humid
91%
Extremely humid
91%
Extremely humid
92%
Extremely humid
93%
Extremely humid
94%
Extremely humid
93%
Extremely humid
93%
Extremely humid
Visibility
16 km
Good
16 km
Good
16 km
Good
12 km
Good
16 km
Good
16 km
Good
14 km
Good
10 km
Fair
7 km
Fair
Pressure
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1011 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1010 hPa
Normal
1009 hPa
Normal
1009 hPa
Normal
Clouds
81%
15%
98%
100%
100%
38%
98%
100%
100%
Dew point
16°
16°
16°
17°
17°
17°
17°
17°
17°
UV Index
0
0
0
0
0
0
0
0
0
Air quality
61
Moderate
62
Moderate
62
Moderate
60
Moderate
58
Moderate
56
Moderate
53
Moderate
50
Moderate
48
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
20.5 μg/m3
21.5 μg/m3
21.9 μg/m3
21.3 μg/m3
20.1 μg/m3
18.9 μg/m3
16.8 μg/m3
15.4 μg/m3
14.7 μg/m3
PM25
14.3 μg/m3
14.8 μg/m3
14.8 μg/m3
14 μg/m3
12.8 μg/m3
11.7 μg/m3
9.9 μg/m3
8.9 μg/m3
8.5 μg/m3
NO2
2.1 ppb
2.2 ppb
2.4 ppb
2.5 ppb
2.5 ppb
2.6 ppb
2.5 ppb
2.5 ppb
2.4 ppb
SO2
0.3 ppb
0.3 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 ppb
0.4 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
34.3 ppb
32.4 ppb
30.5 ppb
28.9 ppb
27.6 ppb
26.6 ppb
25.6 ppb
24.6 ppb
23.7 ppb