Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

20:03

07:34

16 Bad
17 Bad
18 Good
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Good
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:28, Set: 19:44, Transit: 13:35. Moon - Rise: 20:03, Set: 07:34. Civil Dark: 20:16 - 06:55. Nautical Dark: 20:55 - 06:17. Astro Dark: 21:35 - 05:37

Total Clouds (% Sky Obscured)

96
55
15
26
77
100
74
77
88
82
74
72
46
98
98
61
77
95
71
3
56
100
100
99

Low Clouds (% Sky Obscured)

9
4
0
23
77
100
74
77
88
82
74
72
46
41
41
41
8
8
6
3
2
38
71
55

Medium Clouds (% Sky Obscured)

87
37
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

69
27
6
2
0
0
0
0
0
0
0
0
0
96
98
36
75
95
70
0
56
100
100
98

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
9
8
7
6
6
7
7
7
6
6
6
6
6
5
5
5
6
7
8
9
9
7
7

Chance of Frost

Temperature (°C)

19
19
18
17
15
14
13
12
12
11
10
9
9
8
7
7
7
8
10
12
14
15
17
18

Feels Like (°C)

19
19
18
17
15
14
13
12
12
11
10
8
8
7
6
5
5
7
10
12
14
15
17
18

Dew Point (°C)

12
12
12
11
11
10
10
10
10
10
9
8
8
7
7
6
6
7
7
8
9
9
9
9

Relative Humidity (%)

62
63
67
71
75
78
82
87
91
93
94
94
94
93
95
95
93
89
82
76
70
66
61
58

Pressure (mb)

1020
1021
1021
1021
1022
1022
1023
1023
1024
1024
1025
1025
1025
1025
1026
1027
1027
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

290
291
291
291
290
289
290
290
290
291
292
290
287
286
285
285
284
284
284
284
283
283
283
282

Tuesday 21

Full Moon 99%

20:18

08:46

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:29, Set: 19:42, Transit: 13:34. Moon - Rise: 20:18, Set: 08:46. Civil Dark: 20:14 - 06:57. Nautical Dark: 20:53 - 06:18. Astro Dark: 21:33 - 05:38

Total Clouds (% Sky Obscured)

98
77
84
76
88
88
91
85
77
81
96
95
95
97
98
98
98
98
97
95
94
86
95
95

Low Clouds (% Sky Obscured)

52
5
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

96
76
84
76
88
88
91
85
77
81
96
95
95
97
98
98
98
98
97
95
94
86
95
95

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
7
6
5
5
4
4
4
3
3
4
3
3
3
3
3
4
4
4
4
5
5
5
5

Chance of Frost

Temperature (°C)

18
18
17
16
14
12
11
11
10
10
9
9
9
8
7
6
7
8
11
14
15
17
18
19

Feels Like (°C)

18
18
17
16
14
12
11
11
10
10
9
8
8
7
7
6
5
8
11
14
15
17
18
19

Dew Point (°C)

9
10
10
10
9
8
8
8
9
8
8
8
8
7
6
5
5
7
8
9
10
10
11
11

Relative Humidity (%)

57
59
63
69
73
77
80
85
90
92
94
94
94
94
93
93
92
90
81
76
71
67
63
61

Pressure (mb)

1028
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1029
1029
1029
1029
1029
1028
1028
1027

Ozone (du)

283
282
282
282
282
283
283
283
281
280
280
279
278
277
276
276
275
274
274
274
273
272
274
274

Wednesday 22

Waning Gibbous 96%

20:33

09:57

16 Bad
17 Bad
18 Bad
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 OK
10 Good
11 Good
12 Good
13 Good
14 Bad
15 Bad

Sun - Rise: 07:31, Set: 19:39, Transit: 13:34. Moon - Rise: 20:33, Set: 09:57. Civil Dark: 20:12 - 06:58. Nautical Dark: 20:50 - 06:20. Astro Dark: 21:30 - 05:40

Total Clouds (% Sky Obscured)

94
94
84
1
0
6
6
0
0
0
0
3
0
10
0
0
13
13
13
13
13
13
75
75

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
59
59

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

94
94
84
1
0
6
6
0
0
0
0
3
0
10
0
0
12
12
12
12
12
12
37
37

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

4
4
3
3
2
2
3
3
4
4
5
5
6
6
6
6
7
7
9
10
11
12
11
12

Chance of Frost

Temperature (°C)

19
19
19
17
15
14
13
12
12
11
11
11
10
10
9
8
8
10
12
15
16
17
19
19

Feels Like (°C)

19
19
19
17
15
14
13
12
12
11
11
11
10
8
8
7
6
8
12
15
16
17
19
19

Dew Point (°C)

11
12
13
12
11
11
11
11
11
10
10
10
9
9
9
8
8
8
10
12
13
13
13
13

Relative Humidity (%)

60
62
67
73
77
81
84
90
93
94
95
95
95
95
96
96
97
92
87
82
80
75
68
66

Pressure (mb)

1027
1026
1026
1026
1025
1025
1025
1025
1025
1024
1023
1022
1022
1022
1021
1021
1021
1021
1020
1020
1019
1019
1019
1018

Ozone (du)

274
273
274
274
274
274
275
275
275
275
274
273
273
273
273
272
274
274
273
273
275
274
274
273

Thursday 23

Waning Gibbous 91%

20:48

11:07

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:32, Set: 19:37, Transit: 13:34. Moon - Rise: 20:48, Set: 11:07. Civil Dark: 20:10 - 07:00. Nautical Dark: 20:48 - 06:22. Astro Dark: 21:28 - 05:42

Total Clouds (% Sky Obscured)

75
75
75
75
100
100
100
100
100
100
50
50
50
50
50
50
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

59
59
59
59
100
100
100
100
100
100
50
50
50
50
50
50
100
100
100
100
100
100
99
99

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2

High Clouds (% Sky Obscured)

37
37
37
37
34
34
34
34
34
34
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
3
3
3
3
3
4
1
1
1
1
1
1
1
2
2
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0.01
0.02
0.02
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0

Wind Speed/Direction (mph)

13
12
12
11
11
10
9
8
8
8
8
8
7
7
6
6
6
6
7
8
10
11
11
11

Chance of Frost

Temperature (°C)

20
20
19
18
17
15
14
14
14
14
13
13
12
12
11
10
11
12
13
15
16
17
18
18

Feels Like (°C)

20
20
19
18
17
15
14
14
14
14
13
13
12
12
11
10
11
12
13
15
16
17
18
18

Dew Point (°C)

13
14
14
14
14
13
13
13
13
13
13
13
12
12
11
10
11
11
12
12
12
12
13
13

Relative Humidity (%)

67
70
75
78
83
88
90
95
97
98
99
100
100
100
100
100
100
95
90
85
81
76
73
69

Pressure (mb)

1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1017
1017
1016

Ozone (du)

272
272
272
272
271
271
273
274
274
273
277
277
276
276
276
277
275
275
275
274
275
275
274
274

Friday 24

Waning Gibbous 84%

21:05

12:17

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 OK
15 OK

Sun - Rise: 07:34, Set: 19:35, Transit: 13:33. Moon - Rise: 21:05, Set: 12:17. Civil Dark: 20:07 - 07:01. Nautical Dark: 20:46 - 06:23. Astro Dark: 21:25 - 05:44

Total Clouds (% Sky Obscured)

99
99
99
99
62
62
62
62
62
62
47
47
47
47
47
47
59
59
59
59
59
59
35
35

Low Clouds (% Sky Obscured)

99
99
99
99
62
62
62
62
62
62
47
47
47
47
47
47
59
59
59
59
59
59
35
35

Medium Clouds (% Sky Obscured)

2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
10
9
7
7
7
7
8
8
8
6
6
6
6
6
6
6
6
7
8
8
8
8
7

Chance of Frost

Temperature (°C)

19
19
19
17
16
15
15
14
14
13
13
13
13
12
11
10
10
12
14
16
17
18
19
20

Feels Like (°C)

19
19
19
17
16
15
15
14
14
13
13
13
13
12
11
10
10
12
14
16
17
18
19
20

Dew Point (°C)

13
13
14
13
13
13
13
13
13
13
13
13
13
12
11
10
10
12
13
15
15
16
15
16

Relative Humidity (%)

67
69
73
79
81
84
88
94
96
97
98
100
100
100
100
100
100
99
95
91
88
85
79
75

Pressure (mb)

1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1015
1015

Ozone (du)

273
273
273
273
274
273
273
274
273
273
275
275
274
273
272
272
272
272
273
273
273
272
272
272

Saturday 25

Waning Gibbous 77%

21:25

13:25

16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK
05 OK
06 OK
07 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:35, Set: 19:33, Transit: 13:33. Moon - Rise: 21:25, Set: 13:25. Civil Dark: 20:05 - 07:03. Nautical Dark: 20:43 - 06:25. Astro Dark: 21:23 - 05:46

Total Clouds (% Sky Obscured)

35
35
35
35
36
36
36
36
36
36
39
39
39
39
39
39
48
48
48
48
48
48
88
88

Low Clouds (% Sky Obscured)

35
35
35
35
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
23
23

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
12
12
12
12
12
12
19
19
19
19
19
19
45
45

High Clouds (% Sky Obscured)

0
0
0
0
35
35
35
35
35
35
32
32
32
32
32
32
37
37
37
37
37
37
83
83

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
1
1
2
3
4
0
0
0
5
6
6
6
5
4
5
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.01
0.01
0.02
0.02
0.01
0
0
0
0.01
0.02
0.03
0.04
0.04
0.03
0.02
0.02

Wind Speed/Direction (mph)

6
6
5
5
5
5
6
6
7
7
8
8
8
8
8
7
8
8
8
8
8
9
9
9

Chance of Frost

Temperature (°C)

21
21
20
19
18
17
17
17
16
16
16
16
16
15
15
15
15
16
17
18
18
19
20
19

Feels Like (°C)

21
21
20
19
18
18
17
17
17
17
16
16
16
16
15
15
15
16
17
18
19
19
20
20

Dew Point (°C)

16
16
17
16
16
16
16
16
16
16
16
16
16
15
15
15
15
16
16
16
17
17
17
17

Relative Humidity (%)

74
76
80
83
87
89
92
97
99
100
100
100
100
100
100
100
100
99
96
93
90
87
83
84

Pressure (mb)

1015
1015
1015
1015
1015
1015
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

272
273
273
272
272
273
273
273
273
273
273
274
276
277
279
280
281
281
281
282
282
283
283
283

Sunday 26

Waning Gibbous 68%

21:50

14:32

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 OK
03 Good
04 Good
05 Good
06 Good
07 Good
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 07:37, Set: 19:30, Transit: 13:33. Moon - Rise: 21:50, Set: 14:32. Civil Dark: 20:03 - 07:04. Nautical Dark: 20:41 - 06:26. Astro Dark: 21:20 - 05:47

Total Clouds (% Sky Obscured)

88
88
88
88
81
81
81
81
81
81
10
10
10
10
10
10
100
100
100
100
100
100
97
97

Low Clouds (% Sky Obscured)

23
23
23
23
11
11
11
11
11
11
7
7
7
7
7
7
100
100
100
100
100
100
65
65

Medium Clouds (% Sky Obscured)

45
45
45
45
21
21
21
21
21
21
6
6
6
6
6
6
10
10
10
10
10
10
79
79

High Clouds (% Sky Obscured)

83
83
83
83
77
77
77
77
77
77
0
0
0
0
0
0
90
90
90
90
90
90
85
85

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

9
15
24
36
45
46
39
30
14
9
6
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.03
0.05
0.12
0.27
0.39
0.33
0.2
0.11
0.05
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
9
9
8
7
6
5
5
5
5
5
5
5
5
5
5
5
5
5
6
7
7
8
8

Chance of Frost

Temperature (°C)

19
19
18
18
17
16
15
15
14
14
14
13
13
12
12
11
11
13
14
15
16
17
18
19

Feels Like (°C)

19
19
19
18
18
17
16
15
14
14
14
13
13
13
12
11
11
13
14
15
16
17
18
19

Dew Point (°C)

17
17
17
17
17
16
15
15
14
14
14
13
13
12
12
11
11
13
14
14
14
14
13
13

Relative Humidity (%)

87
91
94
97
97
98
100
100
100
100
100
100
100
100
100
100
100
100
97
91
86
80
73
69

Pressure (mb)

1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1016

Ozone (du)

283
282
281
279
278
277
276
276
275
276
276
276
277
278
278
280
280
280
280
280
279
279
278
277

Forecast for Charleroi, Hainaut, BE (50.41,4.44)

Generated: 20/09/21 16:10:20. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+2.00