Hourly Weather in Observatorio Astronomico Cerro Tololo, Chile
∙ View on Radar5 min
1 hour
6 hours
1 day
Wind
3 mph
Calm
2 mph
Calm
2 mph
Calm
3 mph
Calm
2 mph
Calm
2 mph
Calm
2 mph
Calm
2 mph
Calm
3 mph
Calm
Humidity
48%
Comfortable
43%
Dry
42%
Dry
40%
Dry
38%
Dry
46%
Comfortable
40%
Dry
36%
Dry
31%
Dry
Visibility
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
10 mi
Good
Pressure
1019 hPa
High
1019 hPa
High
1019 hPa
High
1019 hPa
High
1019 hPa
High
1020 hPa
High
1020 hPa
High
1019 hPa
High
1018 hPa
High
Clouds
27%
13%
25%
24%
15%
41%
17%
23%
24%
Dew point
28°
26°
24°
23°
23°
31°
35°
37°
37°
UV Index
0
0
0
0
0
0
1
2
3
Air quality
15
Good
15
Good
16
Good
17
Good
17
Good
19
Good
22
Good
25
Good
27
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
0.09 μg/ft3
0.07 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.05 μg/ft3
0.06 μg/ft3
0.06 μg/ft3
0.06 μg/ft3
0.08 μg/ft3
PM25
0.05 μg/ft3
0.04 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.03 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.04 μg/ft3
0.05 μg/ft3
NO2
2.66 ppb
2.1 ppb
2.05 ppb
2 ppb
1.95 ppb
1.61 ppb
1.27 ppb
0.93 ppb
0.83 ppb
SO2
1.47 ppb
1.1 ppb
0.96 ppb
0.82 ppb
0.69 ppb
1.13 ppb
1.57 ppb
2.02 ppb
2.3 ppb
CO
0.11 ppb
0.1 ppb
0.09 ppb
0.09 ppb
0.09 ppb
0.09 ppb
0.08 ppb
0.08 ppb
0.08 ppb
O3
17.21 ppb
18.05 ppb
18.81 ppb
19.57 ppb
20.33 ppb
23.91 ppb
27.49 ppb
31.07 ppb
32.09 ppb