Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 29

Waning Gibbous 96%

20:14

08:57

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
16 Bad

Sun - Rise: 06:17, Set: 20:00, Transit: 13:07. Moon - Rise: 20:14, Set: 08:57. Civil Dark: 20:35 - 05:42. Nautical Dark: 21:18 - 04:59. Astro Dark: 22:07 - 04:11

Total Clouds (% Sky Obscured)

96
98
93
80
66
71
56
37
45
47
68
88
50
67
61
70
95
83
93
91
88
79
98
73

Low Clouds (% Sky Obscured)

39
44
30
55
55
71
56
32
39
45
66
83
50
56
46
36
78
60
86
73
65
50
78
32

Medium Clouds (% Sky Obscured)

36
15
17
20
2
0
0
0
0
0
1
3
0
0
0
9
6
11
17
7
5
9
23
24

High Clouds (% Sky Obscured)

80
25
0
0
1
2
2
0
0
0
0
0
2
27
33
30
25
25
25
59
80
79
85
73

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
9
6
9
4
6

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

Precipitation Probability (%)

23
39
72
40
44
9
1
0
0
0
0
0
0
0
0
1
9
46
58
59
51
57
84
86

Precipitation Amount (mm)

0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0.5
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
19
18
17
17
16
15
15
14
14
14
14
14
14
15
16
18
18
19
19
20
19
18

Feels Like (°C)

18
18
17
20
17
16
13
12
13
13
14
14
13
14
13
13
14
16
16
16
16
16
16
14

Dew Point (°C)

16
18
17
17
16
17
15
14
14
14
14
14
14
13
13
13
14
14
13
12
12
9
9
11

Relative Humidity (%)

81
85
86
92
93
96
92
90
93
95
98
95
95
93
90
89
85
78
69
63
60
50
50
62

Pressure (mb)

999
1000
1001
1002
1004
1005
1006
1007
1008
1008
1008
1008
1009
1009
1009
1010
1010
1010
1009
1009
1008
1008
1007
1007

Ozone (du)

314
309
311
310
310
308
308
310
313
314
315
315
313
313
312
312
312
313
316
318
318
318
318
322

Sunday 30

Waning Gibbous 91%

20:26

10:17

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
16 Bad

Sun - Rise: 06:19, Set: 19:57, Transit: 13:07. Moon - Rise: 20:26, Set: 10:17. Civil Dark: 20:32 - 05:44. Nautical Dark: 21:16 - 05:01. Astro Dark: 22:04 - 04:13

Total Clouds (% Sky Obscured)

90
100
85
80
67
60
80
83
89
87
65
55
51
55
53
67
78
74
74
67
79
74
100
100

Low Clouds (% Sky Obscured)

41
78
61
48
35
30
22
41
56
87
48
48
47
47
41
63
78
74
74
67
79
74
67
58

Medium Clouds (% Sky Obscured)

50
89
13
3
8
57
68
1
59
4
4
3
0
13
11
2
0
0
0
0
0
0
21
20

High Clouds (% Sky Obscured)

89
100
25
70
67
7
41
78
40
4
5
0
0
0
0
0
0
0
0
0
0
11
100
100

ISS Passover

Visibility (miles)

9
3
8
5
9
9
3
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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

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

Precipitation Probability (%)

95
95
68
71
56
70
48
8
7
8
1
1
0
0
0
0
2
11
4
10
11
9
2
0

Precipitation Amount (mm)

0.5
10.7
0.3
0.5
0.2
0.4
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
12
16
15
14
13
13
13
13
12
12
12
12
12
12
13
13
13
13
14
14
13
13
12

Relative Humidity (%)

60
73
95
93
92
92
89
93
93
93
92
92
93
92
92
90
87
83
82
81
79
71
72
67

Pressure (mb)

1007
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1008
1009
1010
1011
1012
1013
1014
1014
1015
1016
1016

Ozone (du)

326
323
324
329
329
331
335
334
334
334
335
334
335
334
334
332
330
328
326
324
321
319
316
313

Monday 31

Waning Gibbous 83%

20:39

11:41

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
16 Bad

Sun - Rise: 06:20, Set: 19:55, Transit: 13:06. Moon - Rise: 20:39, Set: 11:41. Civil Dark: 20:30 - 05:45. Nautical Dark: 21:13 - 05:03. Astro Dark: 22:01 - 04:15

Total Clouds (% Sky Obscured)

100
100
100
100
61
91
88
50
80
89
73
91
95
95
83
83
91
69
91
100
94
87
82
75

Low Clouds (% Sky Obscured)

69
14
5
13
0
0
2
0
6
14
26
24
32
32
39
36
68
67
76
78
55
73
82
75

Medium Clouds (% Sky Obscured)

63
6
7
99
61
91
88
50
73
72
31
26
64
58
72
77
67
23
28
21
21
17
20
62

High Clouds (% Sky Obscured)

100
100
100
100
40
31
16
0
0
0
1
15
20
64
36
35
20
0
23
76
74
45
18
18

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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 (%)

8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
18
9
14
18
33
31

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)

15
13
11
9
7
6
5
5
5
6
6
7
7
7
7
8
10
12
13
13
14
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
10
10
9
9
9
9
9
9
9
10
10
11
11
11
11
11
11
10
10
9
8
9
14

Relative Humidity (%)

64
64
67
70
74
75
77
77
79
80
84
89
92
93
90
86
79
70
64
58
53
47
51
72

Pressure (mb)

1016
1017
1017
1018
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1020
1020
1020
1020
1020

Ozone (du)

312
312
313
312
313
315
314
313
311
310
309
308
308
309
310
311
312
311
310
310
309
309
311
313

Tuesday 1

Waning Gibbous 74%

20:56

13:07

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
16 Bad

Sun - Rise: 06:22, Set: 19:53, Transit: 13:06. Moon - Rise: 20:56, Set: 13:07. Civil Dark: 20:28 - 05:47. Nautical Dark: 21:10 - 05:05. Astro Dark: 21:58 - 04:18

Total Clouds (% Sky Obscured)

69
61
42
53
81
100
100
99
100
100
100
100
99
99
100
100
92
95
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

50
13
15
20
23
22
16
11
14
20
17
21
22
33
77
58
61
70
91
87
96
93
100
80

Medium Clouds (% Sky Obscured)

69
61
6
1
0
5
7
11
98
99
61
99
98
64
31
37
41
73
78
57
78
70
56
63

High Clouds (% Sky Obscured)

19
14
32
53
81
100
100
99
100
100
100
87
73
62
79
89
79
72
67
100
95
91
80
74

ISS Passover

Visibility (miles)

6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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 (%)

13
4
7
6
0
0
0
1
13
21
26
26
28
28
25
20
12
17
21
28
26
43
38
50

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)

13
12
11
8
7
5
6
7
8
9
10
12
12
13
13
15
17
19
19
18
19
19
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
72
74
83
87
90
92
93
93
93
93
95
95
95
93
92
83
70
67
78
71
71
75
78

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017
1016
1016
1015
1015

Ozone (du)

317
319
321
317
315
314
313
311
308
305
303
301
300
299
297
296
294
291
289
289
288
288
289
288

Wednesday 2

Waning Gibbous 63%

21:19

14:33

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
16 Bad

Sun - Rise: 06:23, Set: 19:51, Transit: 13:06. Moon - Rise: 21:19, Set: 14:33. Civil Dark: 20:25 - 05:49. Nautical Dark: 21:08 - 05:06. Astro Dark: 21:55 - 04:20

Total Clouds (% Sky Obscured)

92
90
86
79
71
71
76
81
84
86
89
92
95
97
83
75
67
65
63
65
69
69
69
50

Low Clouds (% Sky Obscured)

73
83
81
76
69
70
76
81
84
86
89
91
91
88
69
46
21
29
37
46
31
15
0
0

Medium Clouds (% Sky Obscured)

92
90
86
12
71
71
76
81
84
86
58
92
95
97
83
75
67
65
51
31
21
10
0
0

High Clouds (% Sky Obscured)

65
55
55
51
55
24
18
53
54
48
43
51
64
77
47
39
30
25
20
15
16
18
19
17

ISS Passover

Visibility (miles)

9
4
5
9
5
9
9
9
9
9
9
4
9
9
9
9
9
9
9
9
9
9
9
9

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

Precipitation Probability (%)

66
86
35
49
38
14
32
70
95
89
74
95
47
34
29
20
6
13
15
18
14
9
0
0

Precipitation Amount (mm)

0.3
0.8
0
0.2
0
0
0
0
0.9
0.3
0.3
0.4
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
17
16
16
15
15
15
14
14
13
13
13
12
12
12
15
16
18
19
21
22
22
22
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
17
18
17
17
16
16
15
14
14
15
14
14
15
14
14
14
14
13
11
10
10
9
9

Relative Humidity (%)

82
89
95
93
95
95
95
93
93
93
96
95
95
96
92
89
86
83
72
61
53
53
52
52

Pressure (mb)

1015
1014
1014
1014
1014
1015
1015
1015
1015
1014
1014
1014
1014
1014
1015
1013
1014
1014
1014
1014
1014
1014
1015
1015

Ozone (du)

287
286
286
286
288
289
288
288
288
288
288
288
289
291
292
293
293
294
298
303
307
311
314
317

Thursday 3

Waning Gibbous 51%

21:51

15:53

17 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good
00 OK
01 OK
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
16 Bad

Sun - Rise: 06:25, Set: 19:48, Transit: 13:05. Moon - Rise: 21:51, Set: 15:53. Civil Dark: 20:23 - 05:50. Nautical Dark: 21:05 - 05:08. Astro Dark: 21:52 - 04:22

Total Clouds (% Sky Obscured)

32
14
12
9
9
7
8
9
33
59
78
86
92
98
99
99
99
100
100
100
100
100
100
97

Low Clouds (% Sky Obscured)

0
3
3
0
0
0
0
0
0
0
0
0
0
5
13
24
32
47
62
77
75
73
73
58

Medium Clouds (% Sky Obscured)

0
0
1
1
2
0
0
0
0
0
0
11
18
26
46
66
86
58
31
8
9
9
10
20

High Clouds (% Sky Obscured)

13
0
0
0
0
0
0
0
18
31
40
43
49
50
53
52
51
55
59
67
65
58
50
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
1
0
1
1
1
6
6
0
4
3
0
34
54
72
84
87
87
95
95
95
81

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.6
0.8
0.8
0.7
1
1.1
1.3
0.6

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

57
62
68
74
78
84
86
89
90
89
87
86
87
87
89
84
79
75
72
71
69
66
63
60

Pressure (mb)

1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016

Ozone (du)

320
322
325
326
327
328
330
331
333
329
326
322
321
319
317
314
311
308
306
304
302
301
300
300

Friday 4

Third Quarter 39%

22:39

16:58

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

Sun - Rise: 06:26, Set: 19:46, Transit: 13:05. Moon - Rise: 22:39, Set: 16:58. Civil Dark: 20:21 - 05:52. Nautical Dark: 21:03 - 05:10. Astro Dark: 21:49 - 04:25

Total Clouds (% Sky Obscured)

95
93
96
96
96
97
99
100
99
98
98
98
99
100
100
100
100
98
96
94

Low Clouds (% Sky Obscured)

50
36
35
37
35
46
63
86
85
84
82
88
93
99
98
98
98
98
96
94

Medium Clouds (% Sky Obscured)

21
26
32
38
41
52
62
74
60
45
24
23
17
11
6
6
5
3
2
0

High Clouds (% Sky Obscured)

35
24
38
59
79
74
69
64
71
78
85
80
70
60
55
50
55
53
46
40

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

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

Precipitation Probability (%)

60
44
50
55
66
73
80
88
76
69
58
60
63
61
52
38
25
16
12
11

Precipitation Amount (mm)

0.2
0
0
0
0.4
0.3
0.3
0.4
0.3
0.3
0.2
0.3
0.4
0.4
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

14
13
11
11
10
10
10
9
9
9
10
10
9
9
7
8
9
10
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

66
71
76
81
86
92
90
89
87
86
87
86
87
89
90
89
89
87
83
80

Pressure (mb)

1016
1016
1016
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017

Ozone (du)

299
299
298
297
296
294
294
294
293
294
294
294
294
294
293
293
292
291
291
290

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 29/08/26 17:59:40. Forecast: 29/08/26 to 04/09/26. Timezone: UTC+1.00