Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 28

Waning Gibbous 93%

19:09

09:35

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

Sun - Rise: 07:14, Set: 19:00, Transit: 13:06. Moon - Rise: 19:09, Set: 09:35. Civil Dark: 19:34 - 06:41. Nautical Dark: 20:13 - 06:01. Astro Dark: 20:54 - 05:20

Total Clouds (% Sky Obscured)

75
89
90
60
53
46
55
70
36
18
14
29
3
10
41
6
7
4
59
83
83
84
61
55

Low Clouds (% Sky Obscured)

32
9
2
18
20
16
30
52
36
18
14
0
0
0
0
0
0
0
27
49
23
17
19
19

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
26
31
10
0

High Clouds (% Sky Obscured)

75
89
90
60
53
46
50
40
4
3
3
29
3
10
41
6
7
4
50
50
55
55
55
55

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 (%)

56
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
11

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
2
0
1

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)

3
4
4
4
2
2
3
3
5
6
7
8
9
9
9
10
10
10
10
10
11
13
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
9
11
13
14
14
15
16
15
17
15
12
10
10
9
8
9
9
9
7
8
7
8
9

Dew Point (°C)

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

Relative Humidity (%)

88
85
80
73
67
62
60
58
57
63
70
74
75
77
80
79
73
75
80
85
84
84
89
92

Pressure (mb)

1020
1020
1021
1021
1021
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1016
1016
1015
1014
1014

Ozone (du)

319
321
321
322
322
321
321
324
325
325
321
318
315
315
314
314
311
309
308
308
308
307
306
304

Tuesday 29

Waning Gibbous 86%

19:29

11:04

08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
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

Sun - Rise: 07:16, Set: 18:57, Transit: 13:06. Moon - Rise: 19:29, Set: 11:04. Civil Dark: 19:31 - 06:42. Nautical Dark: 20:11 - 06:03. Astro Dark: 20:52 - 05:22

Total Clouds (% Sky Obscured)

86
70
85
80
98
100
93
67
69
36
41
61
57
100
100
100
100
100
100
100
100
100
99
56

Low Clouds (% Sky Obscured)

45
32
41
51
83
8
1
4
0
5
19
20
20
16
18
13
18
59
53
60
83
86
62
45

Medium Clouds (% Sky Obscured)

27
16
26
22
30
16
8
10
14
10
19
23
9
17
100
100
95
98
100
97
100
100
29
5

High Clouds (% Sky Obscured)

60
60
68
63
70
100
90
44
40
28
25
57
36
100
100
100
100
100
97
100
69
35
35
0

ISS Passover

Visibility (miles)

7
9
9
7
7
9
9
9
9
9
9
9
9
9
9
9
9
9
5
9
9
9
9
9

Fog (%)

3
0
0
0
42
29
2
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
Light Rain
None
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

3
3
2
0
0
0
0
0
0
0
2
10
16
27
19
13
20
76
95
83
95
89
56
33

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
16
15
16
16
16
16
17
17
18
19
21
23
23
25
25
25
25
25
21
20
14
12
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
87
83
83
83
81
78
76
77
80
78
75
80
82
82
81
77
81
82
90
89
90
87
85

Pressure (mb)

1013
1013
1012
1012
1011
1011
1010
1009
1008
1007
1007
1006
1006
1005
1004
1004
1003
1002
1002
1002
1002
1002
1003
1004

Ozone (du)

304
304
303
303
302
301
301
300
298
298
295
293
293
291
289
285
284
284
283
286
287
288
289
292

Wednesday 30

Waning Gibbous 76%

19:57

12:33

08 OK
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
07 Bad

Sun - Rise: 07:18, Set: 18:55, Transit: 13:06. Moon - Rise: 19:57, Set: 12:33. Civil Dark: 19:29 - 06:44. Nautical Dark: 20:09 - 06:04. Astro Dark: 20:49 - 05:24

Total Clouds (% Sky Obscured)

14
43
65
46
80
83
87
61
62
64
78
73
75
84
86
88
89
89
88
49
43
41
46
47

Low Clouds (% Sky Obscured)

2
26
14
28
24
25
26
30
29
30
38
36
41
42
74
63
61
45
44
37
37
33
33
41

Medium Clouds (% Sky Obscured)

14
18
65
35
79
83
86
25
27
24
30
25
26
84
86
88
89
89
88
17
8
9
11
8

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
7
2
13
2
3
0
0
0
0
0
0
3
3
0

ISS Passover

Visibility (miles)

9
8
9
9
7
8
8
7
7
9
5
7
4
3
4
3
4
4
3
5
3
5
7
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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

33
32
45
47
56
48
55
61
66
74
80
80
86
95
95
95
90
88
87
73
65
57
55
47

Precipitation Amount (mm)

0
0
0
0
0.3
0
0.3
0.3
0.3
0.5
0.6
0.5
0.6
1
0.8
0.7
0.8
0.7
0.7
0.6
0.4
0.3
0.3
0.2

Wind Speed/Direction (mph)

8
13
15
18
19
21
20
20
18
17
15
12
10
9
9
9
9
8
8
9
9
9
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
85
79
78
77
74
78
78
82
86
90
93
93
93
93
92
93
93
92
93
93
92
92

Pressure (mb)

1005
1006
1006
1006
1007
1007
1007
1008
1008
1008
1009
1010
1011
1011
1012
1013
1013
1014
1014
1015
1015
1016
1017
1018

Ozone (du)

294
297
299
300
300
303
305
306
307
310
310
310
312
315
316
316
318
319
320
322
326
323
323
322

Thursday 1

Waning Gibbous 66%

20:39

13:58

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
07 Bad

Sun - Rise: 07:20, Set: 18:53, Transit: 13:05. Moon - Rise: 20:39, Set: 13:58. Civil Dark: 19:27 - 06:46. Nautical Dark: 20:06 - 06:06. Astro Dark: 20:47 - 05:26

Total Clouds (% Sky Obscured)

38
43
43
46
62
70
75
80
87
94
93
99
86
81
97
97
96
98
99
96
73
76
77
56

Low Clouds (% Sky Obscured)

37
39
41
44
39
33
30
24
24
26
29
41
39
26
57
77
90
91
90
77
73
73
70
52

Medium Clouds (% Sky Obscured)

3
4
0
0
2
26
75
80
83
94
69
99
34
42
67
97
96
97
96
86
15
12
11
0

High Clouds (% Sky Obscured)

0
0
2
3
29
32
29
35
63
81
83
88
38
27
53
45
33
46
44
60
50
45
38
21

ISS Passover

Visibility (miles)

9
9
9
8
7
9
9
8
9
8
9
9
9
9
9
9
3
2
3
8
9
9
6
5

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

Precipitation Probability (%)

32
22
35
45
43
33
36
17
29
26
22
29
36
30
49
94
95
95
95
91
64
69
69
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.8
1.3
3.6
1.2
0.3
0
0.4
0.5
0

Wind Speed/Direction (mph)

9
10
13
15
16
16
17
18
17
18
17
16
18
19
19
20
18
18
18
15
13
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
89
80
78
79
78
75
78
79
83
86
84
86
87
86
89
90
93
93
90
92
93
93
95

Pressure (mb)

1019
1019
1020
1020
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1024
1024

Ozone (du)

324
323
321
317
314
312
313
314
318
318
317
316
319
318
318
318
318
318
319
319
317
315
312
310

Friday 2

Waning Gibbous 54%

21:40

15:08

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

Sun - Rise: 07:21, Set: 18:50, Transit: 13:05. Moon - Rise: 21:40, Set: 15:08. Civil Dark: 19:24 - 06:47. Nautical Dark: 20:04 - 06:08. Astro Dark: 20:44 - 05:28

Total Clouds (% Sky Obscured)

61
66
56
48
40
57
74
90
90
90
89
91
91
89
91
93
95
96
97
98
97
95
93
86

Low Clouds (% Sky Obscured)

48
45
38
31
25
28
32
38
31
26
18
17
18
20
30
40
51
56
57
54
50
43
43
37

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
3
5
9
13
16
23
21
20
19
18
17
31
48
66
66

High Clouds (% Sky Obscured)

36
52
44
36
34
53
71
88
89
90
89
84
77
73
77
74
67
65
67
75
79
64
63
61

ISS Passover

Visibility (miles)

6
8
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 (%)

30
29
14
9
7
1
1
5
1
1
6
3
1
0
8
8
1
7
8
6
10
10
8
11

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

Chance of Frost

Temperature (°C)

13
14
15
15
15
16
16
16
16
16
15
14
14
13
13
13
14
13
13
14
14
14
14
14

Feels Like (°C)

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

Dew Point (°C)

12
12
11
11
11
11
11
11
11
11
11
11
11
11
11
11
12
11
11
11
12
12
11
11

Relative Humidity (%)

89
84
79
76
74
72
70
71
71
74
78
82
83
86
87
87
87
87
86
86
86
84
83
82

Pressure (mb)

1025
1026
1027
1027
1027
1028
1027
1027
1027
1027
1027
1027
1028
1028
1028
1027
1027
1027
1027
1026
1026
1026
1025
1025

Ozone (du)

309
308
307
305
304
303
302
301
301
300
299
298
297
297
296
297
298
299
298
298
298
298
298
297

Saturday 3

Third Quarter 42%

22:57

15:59

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
07 Bad

Sun - Rise: 07:23, Set: 18:48, Transit: 13:05. Moon - Rise: 22:57, Set: 15:59. Civil Dark: 19:22 - 06:49. Nautical Dark: 20:01 - 06:10. Astro Dark: 20:42 - 05:29

Total Clouds (% Sky Obscured)

78
68
78
88
100
97
95
92
95
98
100
100
100
100
100
100
100
96
92
88
86
84
83
81

Low Clouds (% Sky Obscured)

27
17
24
27
31
22
14
8
12
15
19
19
21
24
24
24
27
26
25
26
31
40
46
53

Medium Clouds (% Sky Obscured)

65
63
60
57
54
43
32
21
22
22
22
42
58
74
76
78
82
70
61
53
46
40
34
27

High Clouds (% Sky Obscured)

56
55
68
81
100
88
75
61
74
88
100
100
100
100
96
91
89
76
62
48
30
15
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 (%)

10
1
1
1
0
2
5
0
0
0
0
0
0
0
1
3
0
2
8
0
2
4
3
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
80
79
76
73
69
69
67
66
71
77
80
82
82
82
82
83
84
84
86
87
87
86
87

Pressure (mb)

1025
1025
1025
1024
1024
1024
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

297
298
298
297
297
297
297
297
297
298
298
298
300
301
302
302
303
303
304
305
307
307
307
307

Sunday 4

Waning Crescent 42%

00:24

16:34

Sun - Rise: 07:25, Set: 18:46, Transit: 13:04. Moon - Rise: 00:24, Set: 16:34. Civil Dark: 19:20 - 06:51. Nautical Dark: 19:59 - 06:11. Astro Dark: 20:39 - 05:31

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: 28/09/26 08:09:10. Forecast: 28/09/26 to 04/10/26. Timezone: UTC+1.00