Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waxing Gibbous 100%

19:35

07:06

15 OK
16 Bad
17 Good
18 OK
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

Sun - Rise: 06:58, Set: 19:15, Transit: 13:05. Moon - Rise: 19:35, Set: 07:06. Civil Dark: 19:48 - 06:25. Nautical Dark: 20:27 - 05:46. Astro Dark: 21:09 - 05:05

Total Clouds (% Sky Obscured)

46
62
4
24
81
100
98
95
98
100
45
96
81
92
100
98
97
98
95
94
96
94
96
98

Low Clouds (% Sky Obscured)

46
62
4
24
4
2
3
6
5
8
11
7
2
0
28
31
29
33
15
17
5
9
37
64

Medium Clouds (% Sky Obscured)

0
0
2
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)

0
0
0
0
79
100
98
95
98
100
38
96
81
92
100
97
95
97
94
92
95
94
94
96

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
28
31
29
28
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
5
6
6
6
5
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0.04
0.04
0.05
0.04
0.03
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
9
9
9
9
9
9
9
8
8
7
7
6
5
5
5
4
4
3
3
4
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
60
63
66
70
74
76
79
84
88
88
89
90
90
89
89
88
85
80
74
69
66
66
65

Pressure (mb)

1025
1025
1025
1025
1025
1026
1027
1027
1028
1028
1029
1029
1029
1029
1029
1029
1030
1030
1030
1031
1031
1031
1030
1030

Ozone (du)

294
292
291
291
293
292
292
291
292
293
287
286
286
286
285
285
282
282
282
282
282
282
279
278

Tuesday 21

Full Moon 99%

19:50

08:19

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

Sun - Rise: 07:00, Set: 19:12, Transit: 13:05. Moon - Rise: 19:50, Set: 08:19. Civil Dark: 19:46 - 06:27. Nautical Dark: 20:25 - 05:48. Astro Dark: 21:06 - 05:07

Total Clouds (% Sky Obscured)

98
97
96
95
95
91
77
71
34
19
51
67
32
49
59
71
74
83
78
99
98
89
81
74

Low Clouds (% Sky Obscured)

47
10
2
1
1
3
4
2
5
10
18
26
31
40
44
49
64
81
77
99
98
89
81
74

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
97
96
95
95
91
76
71
30
10
42
56
2
16
27
42
26
16
7
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
2
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
0.01
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
12
12
12
12
12
12
12
12
12
12
12
12
12
12
11
11
12
12
12
12
12
12

Relative Humidity (%)

65
66
67
70
73
79
81
83
86
92
93
94
94
94
95
95
92
89
85
80
75
70
67
65

Pressure (mb)

1030
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027

Ozone (du)

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

Wednesday 22

Waning Gibbous 96%

20:03

09:31

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

Sun - Rise: 07:02, Set: 19:10, Transit: 13:05. Moon - Rise: 20:03, Set: 09:31. Civil Dark: 19:43 - 06:28. Nautical Dark: 20:23 - 05:49. Astro Dark: 21:03 - 05:09

Total Clouds (% Sky Obscured)

48
33
63
54
21
55
68
19
39
56
47
46
37
38
76
100
100
100
100
100
100
100
41
41

Low Clouds (% Sky Obscured)

48
33
63
54
21
54
52
15
39
54
40
46
37
38
48
100
100
100
100
100
100
100
22
22

Medium 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
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
1
31
4
0
3
11
0
0
0
51
61
62
62
62
62
62
62
24
24

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
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
2
4
4
3
4
4
4
3
3
2
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
11
10
12
11
11
11
10
10
11
12
12
12
13
14
14
16
17
18
18
18
16
17

Chance of Frost

Temperature (°C)

19
19
18
17
16
15
15
15
15
14
14
15
15
15
15
15
15
16
17
17
17
18
18
18

Feels Like (°C)

19
19
18
17
16
15
15
15
15
14
14
15
15
15
15
15
15
16
17
17
17
18
18
18

Dew Point (°C)

12
13
13
12
12
12
12
12
12
12
13
13
14
14
15
15
14
14
15
14
13
13
12
12

Relative Humidity (%)

65
67
69
72
76
81
83
84
85
88
91
92
94
96
97
96
92
90
87
83
77
71
68
70

Pressure (mb)

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

Ozone (du)

276
276
276
276
272
272
273
274
276
278
277
275
274
274
275
276
278
278
277
275
275
275
275
275

Thursday 23

Waning Gibbous 91%

20:18

10:42

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

Sun - Rise: 07:03, Set: 19:08, Transit: 13:04. Moon - Rise: 20:18, Set: 10:42. Civil Dark: 19:41 - 06:30. Nautical Dark: 20:20 - 05:51. Astro Dark: 21:01 - 05:10

Total Clouds (% Sky Obscured)

41
41
41
41
0
0
0
0
0
0
20
20
20
20
20
20
99
99
99
99
99
99
100
100

Low Clouds (% Sky Obscured)

22
22
22
22
0
0
0
0
0
0
20
20
20
20
20
20
99
99
99
99
99
99
100
100

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)

24
24
24
24
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
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2

Precipitation Amount (mm)

0
0
0
0
0.01
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.01

Wind Speed/Direction (mph)

18
17
16
15
13
12
10
9
7
7
8
7
7
7
7
7
6
7
8
10
12
13
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
71
73
76
79
82
82
84
85
89
91
92
92
91
90
90
90
89
88
85
80
77
75
74

Pressure (mb)

1019
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015

Ozone (du)

275
274
274
275
275
276
276
276
276
274
272
272
270
269
268
268
271
272
271
271
270
270
268
268

Friday 24

Waning Gibbous 84%

20:34

11:53

15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
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 OK
14 OK

Sun - Rise: 07:05, Set: 19:06, Transit: 13:04. Moon - Rise: 20:34, Set: 11:53. Civil Dark: 19:39 - 06:32. Nautical Dark: 20:18 - 05:53. Astro Dark: 20:58 - 05:12

Total Clouds (% Sky Obscured)

100
100
100
100
16
16
16
16
16
16
41
41
41
41
41
41
91
91
91
91
91
91
35
35

Low Clouds (% Sky Obscured)

100
100
100
100
16
16
16
16
16
16
31
31
31
31
31
31
91
91
91
91
91
91
35
35

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)

0
0
0
0
0
0
0
0
0
0
15
15
15
15
15
15
6
6
6
6
6
6
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
9
7
6
8
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
Very Light Rain
None
None
None
None

Precipitation Probability (%)

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

Precipitation Amount (mm)

0.01
0.01
0.01
0.02
0.03
0.03
0.02
0.02
0.02
0.02
0.03
0.04
0.04
0.05
0.03
0.02
0.01
0.02
0.05
0.07
0.04
0.01
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
18
18
17
17
16
16
16
16
16
16
16
16
16
16
16
16
16
17
17
18
18
18
19

Feels Like (°C)

19
18
18
17
17
16
16
16
16
16
17
17
17
17
16
16
16
17
17
17
18
18
18
19

Dew Point (°C)

14
15
15
15
15
15
15
15
15
16
16
16
16
16
16
16
15
15
15
16
16
15
15
15

Relative Humidity (%)

76
79
84
87
89
91
91
92
94
98
100
100
100
99
98
96
95
94
92
91
88
84
81
78

Pressure (mb)

1015
1014
1014
1014
1014
1014
1013
1013
1013
1013
1014
1013
1013
1013
1013
1013
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

267
268
268
268
264
264
263
264
263
262
263
263
263
263
263
264
264
265
266
267
268
270
271
273

Saturday 25

Waning Gibbous 76%

20:53

13:02

15 OK
16 OK
17 OK
18 OK
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

Sun - Rise: 07:06, Set: 19:03, Transit: 13:04. Moon - Rise: 20:53, Set: 13:02. Civil Dark: 19:36 - 06:33. Nautical Dark: 20:15 - 05:54. Astro Dark: 20:56 - 05:14

Total Clouds (% Sky Obscured)

35
35
35
35
56
56
56
56
56
56
95
95
95
95
95
95
76
76
76
76
76
76
91
91

Low Clouds (% Sky Obscured)

35
35
35
35
8
8
8
8
8
8
7
7
7
7
7
7
23
23
23
23
23
23
81
81

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
7
7
7
7
7
53
53
53
53
53
53
46
46

High Clouds (% Sky Obscured)

0
0
0
0
52
52
52
52
52
52
95
95
95
95
95
95
44
44
44
44
44
44
68
68

ISS Passover

Visibility (miles)

10
10
10
10
8
9
10
10
10
10
10
10
5
2
5
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
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

Precipitation Probability (%)

0
0
1
2
3
3
2
2
0
0
0
9
22
34
32
22
15
13
11
6
4
3
0
3

Precipitation Amount (mm)

0
0
0.01
0.01
0.01
0.01
0.01
0.01
0
0
0
0.03
0.15
0.26
0.25
0.17
0.11
0.07
0.04
0.02
0.01
0.01
0
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
18
18
17
17
17
17
16
16
16
16
16
16
16
15
15
15
15
15
16
18
19
19

Feels Like (°C)

19
19
18
18
17
17
17
17
16
16
16
16
16
16
16
15
15
15
15
15
16
18
19
19

Dew Point (°C)

15
15
15
15
16
15
15
15
15
16
16
16
16
16
16
15
14
14
14
14
14
14
14
14

Relative Humidity (%)

77
78
81
86
89
91
92
92
93
96
97
98
100
100
100
99
98
96
94
92
84
77
74
72

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013

Ozone (du)

275
277
277
278
278
278
278
278
277
276
275
274
273
272
272
272
272
272
273
273
274
275
276
276

Sunday 26

Waning Gibbous 68%

21:17

14:10

15 Bad
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 OK
14 OK

Sun - Rise: 07:08, Set: 19:01, Transit: 13:03. Moon - Rise: 21:17, Set: 14:10. Civil Dark: 19:34 - 06:35. Nautical Dark: 20:13 - 05:56. Astro Dark: 20:53 - 05:16

Total Clouds (% Sky Obscured)

91
91
91
91
99
99
99
99
99
99
82
82
82
82
82
82
87
87
87
87
87
87
37
37

Low Clouds (% Sky Obscured)

81
81
81
81
23
23
23
23
23
23
19
19
19
19
19
19
85
85
85
85
85
85
20
20

Medium Clouds (% Sky Obscured)

46
46
46
46
64
64
64
64
64
64
80
80
80
80
80
80
21
21
21
21
21
21
31
31

High Clouds (% Sky Obscured)

68
68
68
68
98
98
98
98
98
98
0
0
0
0
0
0
0
0
0
0
0
0
6
6

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

Precipitation Probability (%)

4
5
9
12
11
7
5
0
6
11
14
12
6
0
0
0
0
3
4
5
10
15
16
12

Precipitation Amount (mm)

0.06
0.11
0.13
0.12
0.1
0.04
0.01
0
0.01
0.06
0.1
0.06
0.02
0
0
0
0
0.01
0.02
0.05
0.12
0.27
0.37
0.28

Wind Speed/Direction (mph)

13
14
14
13
12
11
11
10
10
10
10
10
10
10
10
10
11
10
10
9
9
9
9
9

Chance of Frost

Temperature (°C)

19
18
17
17
16
15
15
14
14
14
13
13
13
13
13
13
13
13
14
15
17
17
18
17

Feels Like (°C)

19
18
17
17
16
15
15
14
14
14
13
13
13
13
13
13
13
13
14
15
17
17
18
17

Dew Point (°C)

14
13
13
13
13
13
13
13
12
13
13
13
13
13
13
12
12
12
12
13
13
13
13
13

Relative Humidity (%)

73
74
77
80
83
85
87
89
91
95
97
98
98
98
97
96
95
93
88
84
79
76
75
76

Pressure (mb)

1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

277
277
280
282
285
286
287
288
288
288
288
287
286
285
283
281
280
280
282
282
282
282
281
280

Forecast for Barry, Vale of Glamorgan, UK (51.40,-3.28)

Generated: 20/09/21 15:06:54. Forecast: 20/09/21 to 26/09/21. Timezone: UTC+1.00