Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 29

Full Moon 100%

21:27

06:11

07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
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

Sun - Rise: 05:34, Set: 21:12, Transit: 13:22. Moon - Rise: 21:27, Set: 06:11. Civil Dark: 21:55 - 04:52. Nautical Dark: 22:53 - 03:54. Astro Dark: 00:27 - 02:24

Total Clouds (% Sky Obscured)

70
70
70
95
79
66
91
95
99
100
93
73
87
94
93
80
88
89
97
100
97
97
89
78

Low Clouds (% Sky Obscured)

67
70
70
67
72
61
43
45
37
42
65
61
79
82
81
70
59
77
93
86
79
84
64
76

Medium Clouds (% Sky Obscured)

0
2
0
0
3
3
33
48
82
60
51
35
50
34
33
32
37
37
44
50
40
43
27
16

High Clouds (% Sky Obscured)

55
64
4
70
11
11
43
90
95
98
69
24
47
20
3
17
39
4
22
75
70
70
63
27

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
4
4
1
7
9
9
9
9

Fog (%)

9
8
12
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 (%)

5
2
5
16
2
0
2
0
0
0
1
7
15
22
32
22
5
7
12
25
28
12
2
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
15
16
16
15
15
15
14
15
15
14
14
15
16
16
17
17
16
16
16
15
15
14
14

Relative Humidity (%)

92
87
83
77
74
71
68
67
69
70
68
72
76
84
90
96
98
98
98
95
92
92
90
90

Pressure (mb)

1015
1014
1015
1014
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015

Ozone (du)

335
336
335
332
331
331
331
331
332
333
335
338
337
336
337
338
339
340
341
342
346
348
348
348

Thursday 30

Waning Gibbous 98%

21:42

No Set

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

Sun - Rise: 05:35, Set: 21:11, Transit: 13:22. Moon - Rise: 21:42, Set: No Set. Civil Dark: 21:53 - 04:54. Nautical Dark: 22:51 - 03:56. Astro Dark: 00:20 - 02:30

Total Clouds (% Sky Obscured)

64
48
44
65
65
64
61
26
6
34
22
41
53
33
38
30
22
22
26
31
24
27
24
9

Low Clouds (% Sky Obscured)

64
48
44
65
65
64
61
26
5
32
21
36
45
30
34
30
22
22
26
31
24
23
24
9

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
8
0
0

High Clouds (% Sky Obscured)

2
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)

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 (%)

1
3
19
22
17
2
0
0
0
0
0
0
0
1
0
0
0
0
0
1
1
1
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)

8
9
10
13
12
12
13
12
10
9
8
7
8
6
4
4
3
4
5
5
5
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
12
12
10
10
9
8
7
8
8
9
10
9
10
9
8
7
8
8
8
9

Relative Humidity (%)

89
83
79
79
77
72
65
62
59
55
52
53
56
66
76
79
81
79
75
72
75
76
81
84

Pressure (mb)

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

Ozone (du)

349
350
351
351
353
354
356
355
356
356
356
356
356
357
357
357
358
360
361
363
360
359
359
358

Friday 31

Waning Gibbous 94%

21:53

07:28

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

Sun - Rise: 05:37, Set: 21:09, Transit: 13:22. Moon - Rise: 21:53, Set: 07:28. Civil Dark: 21:51 - 04:55. Nautical Dark: 22:48 - 03:59. Astro Dark: 00:15 - 02:35

Total Clouds (% Sky Obscured)

24
33
51
28
23
12
15
18
22
39
56
74
50
26
3
11
14
17
19
21
23
38
50
67

Low Clouds (% Sky Obscured)

24
33
40
28
22
11
8
4
0
4
8
13
8
4
1
5
4
1
0
0
0
11
21
35

Medium Clouds (% Sky Obscured)

0
0
22
0
0
0
0
0
0
6
10
12
7
4
1
3
5
7
4
2
0
4
7
11

High Clouds (% Sky Obscured)

0
0
0
0
0
0
7
14
21
32
42
47
30
12
0
0
0
0
2
4
5
9
10
15

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 (%)

0
0
7
3
0
0
0
0
0
0
0
0
0
0
0
6
9
16
1
1
0
1
1
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
3
3
6
8
8
9
9
9
8
7
6
5
5
4
4
4
5
4
3
3
3
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
76
71
63
61
59
56
53
52
49
47
48
52
67
79
82
84
89
89
90
87
84
83
86

Pressure (mb)

1021
1021
1021
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018

Ozone (du)

356
355
356
357
356
355
355
355
356
357
359
361
361
361
362
363
361
363
357
359
354
353
351
350

Saturday 1

Waning Gibbous 88%

22:04

08:45

07 Bad
08 OK
09 OK
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
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

Sun - Rise: 05:39, Set: 21:07, Transit: 13:22. Moon - Rise: 22:04, Set: 08:45. Civil Dark: 21:49 - 04:57. Nautical Dark: 22:46 - 04:01. Astro Dark: 00:09 - 02:40

Total Clouds (% Sky Obscured)

57
46
38
55
55
67
71
77
76
91
98
97
93
96
93
93
100
93
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

29
20
10
7
3
0
0
0
0
4
7
13
11
6
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

7
4
0
7
14
20
22
24
26
27
28
32
31
35
28
28
32
33
37
32
32
31
34
29

High Clouds (% Sky Obscured)

16
18
34
53
40
58
64
65
64
84
96
94
80
86
74
85
100
88
100
100
100
100
100
100

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 (%)

1
3
1
0
0
0
0
0
0
1
1
1
6
7
6
7
6
3
11
14
13
14
14
12

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)

5
6
6
6
7
8
8
8
8
8
7
5
4
3
1
1
2
4
5
5
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

14
14
15
14
14
16
16
16
17
17
16
16
16
17
14
15
14
12
12
11
10
10
10
10

Dew Point (°C)

11
11
11
11
10
10
10
10
10
10
9
9
9
11
11
11
11
11
11
11
10
10
10
10

Relative Humidity (%)

84
77
71
67
64
62
61
60
59
59
57
57
58
69
78
79
82
84
86
86
83
83
83
84

Pressure (mb)

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

Ozone (du)

346
343
342
340
337
336
336
337
335
334
333
332
332
331
330
330
329
329
328
327
327
327
326
326

Sunday 2

Waning Gibbous 80%

22:14

10:02

07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
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

Sun - Rise: 05:40, Set: 21:06, Transit: 13:22. Moon - Rise: 22:14, Set: 10:02. Civil Dark: 21:47 - 04:59. Nautical Dark: 22:43 - 04:04. Astro Dark: 00:04 - 02:45

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
96
92
88
91
93
95
96
96
95
97
98
100
100
100
99

Low Clouds (% Sky Obscured)

0
0
0
20
43
64
75
87
85
69
63
57
58
63
64
67
78
84
88
87
86
85
86
89

Medium Clouds (% Sky Obscured)

31
38
41
54
68
81
84
85
87
82
76
70
71
74
75
64
51
40
53
64
76
76
77
77

High Clouds (% Sky Obscured)

100
100
100
100
100
100
82
64
46
48
49
46
46
45
47
60
71
81
76
73
74
77
81
81

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

Precipitation Probability (%)

21
34
45
43
40
33
35
34
29
51
64
71
74
79
82
72
61
51
48
48
53
49
49
58

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

14
16
17
18
19
20
21
22
22
22
22
21
21
20
19
18
18
18
18
17
17
17
18
18

Feels Like (°C)

11
12
12
11
12
12
12
20
19
18
19
19
20
19
20
20
20
19
19
15
15
15
15
14

Dew Point (°C)

10
10
9
9
8
7
6
6
5
4
5
7
9
9
9
9
8
8
7
7
7
8
8
8

Relative Humidity (%)

79
69
62
54
48
43
38
35
32
29
34
39
46
49
52
55
53
51
49
50
51
53
52
52

Pressure (mb)

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

Ozone (du)

327
327
328
328
330
331
332
331
331
331
331
331
331
330
330
329
329
330
331
330
330
330
331
333

Monday 3

Waning Gibbous 71%

22:25

11:20

07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
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

Sun - Rise: 05:42, Set: 21:04, Transit: 13:22. Moon - Rise: 22:25, Set: 11:20. Civil Dark: 21:45 - 05:01. Nautical Dark: 22:40 - 04:06. Astro Dark: 23:59 - 02:49

Total Clouds (% Sky Obscured)

100
100
100
98
96
91
90
89
88
84
80
77
82
86
87
89
93
100
91
83
77
81
84
88

Low Clouds (% Sky Obscured)

93
96
100
97
93
88
82
76
68
68
67
67
70
74
78
76
74
72
70
69
68
66
66
67

Medium Clouds (% Sky Obscured)

74
73
74
56
37
16
19
19
17
12
6
1
0
0
0
0
1
1
16
29
44
58
72
83

High Clouds (% Sky Obscured)

59
39
16
9
5
0
1
2
4
15
28
50
58
67
75
80
90
100
89
81
75
74
73
72

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
8
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
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 (%)

48
37
27
21
15
7
10
13
19
17
20
27
20
12
5
10
12
8
14
18
20
22
23
24

Precipitation Amount (mm)

0.3
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
8
8
8
6
6
7
7
7
7
7
7
7
6
7
9
9
9
9
9
9
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
15
15
15
13
11
10
21
21
21
20
20
20
17
18
18
17
17
17
16
17
16
17
17

Dew Point (°C)

7
9
10
11
8
5
3
4
5
7
7
8
9
10
11
12
12
14
15
15
15
15
15
14

Relative Humidity (%)

50
56
61
66
51
39
30
34
39
44
47
49
53
57
63
70
74
82
89
90
92
93
93
92

Pressure (mb)

1009
1009
1009
1009
1009
1010
1010
1010
1010
1011
1011
1011
1011
1012
1012
1013
1013
1013
1014
1014
1014
1014
1014
1015

Ozone (du)

334
334
334
333
333
332
331
328
326
323
320
317
314
313
312
310
309
307
305
305
305
305
305
306

Tuesday 4

Waning Gibbous 60%

22:38

12:42

Sun - Rise: 05:43, Set: 21:02, Transit: 13:22. Moon - Rise: 22:38, Set: 12:42. Civil Dark: 21:43 - 05:03. Nautical Dark: 22:38 - 04:08. Astro Dark: 23:54 - 02:54

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

Forecast for Aberystwyth, Ceredigion, United Kingdom (52.42,-4.08)

Generated: 29/07/26 07:11:47. Forecast: 29/07/26 to 04/08/26. Timezone: UTC+1.00