Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 6

Waning Crescent 18%

01:11

18:00

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
15 Bad
16 Bad

Sun - Rise: 06:38, Set: 19:52, Transit: 13:14. Moon - Rise: 01:11, Set: 18:00. Civil Dark: 20:27 - 06:03. Nautical Dark: 21:10 - 05:20. Astro Dark: 21:56 - 04:34

Total Clouds (% Sky Obscured)

11
43
63
100
100
98
100
100
81
96
100
100
100
98
95
98
96
100
95
90
97
100
96
100

Low Clouds (% Sky Obscured)

11
24
37
35
32
45
75
100
81
94
98
93
99
92
86
46
11
8
9
9
8
12
12
17

Medium Clouds (% Sky Obscured)

0
0
62
91
78
31
52
20
0
13
25
11
6
0
5
37
94
91
80
56
12
9
81
42

High Clouds (% Sky Obscured)

11
43
63
66
100
54
100
30
0
6
98
100
62
83
51
82
60
100
75
43
84
100
55
57

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
3
1
0
6
7
7
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
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
4
8
13
30
37
37
47
58
43
20
13
7
12
6
0
0
0
0
0
10
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.4
0.2
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

23
21
20
19
17
17
17
17
18
18
18
17
17
16
16
15
16
16
16
17
17
17
18
17

Feels Like (°C)

23
20
19
18
16
16
16
16
17
16
16
15
15
14
14
14
13
13
13
13
14
13
14
14

Dew Point (°C)

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

Relative Humidity (%)

67
72
78
80
83
83
89
93
92
95
98
98
96
95
90
89
82
78
74
73
71
74
74
77

Pressure (mb)

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

Ozone (du)

303
304
304
303
303
304
305
308
310
305
305
306
306
305
306
305
304
304
303
302
301
303
302
302

Monday 7

Waning Crescent 9%

02:41

18:31

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: 06:39, Set: 19:50, Transit: 13:13. Moon - Rise: 02:41, Set: 18:31. Civil Dark: 20:24 - 06:05. Nautical Dark: 21:07 - 05:22. Astro Dark: 21:53 - 04:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
79
77
84
74
87
84
75
60
54
63
38
60
88
91
88
81

Low Clouds (% Sky Obscured)

22
27
25
46
52
79
84
80
77
77
84
74
71
80
75
60
19
63
17
40
85
90
80
64

Medium Clouds (% Sky Obscured)

82
98
100
95
100
100
100
100
79
77
84
74
87
80
4
0
6
0
8
7
6
6
11
8

High Clouds (% Sky Obscured)

100
100
100
99
100
100
97
100
46
35
35
35
1
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
6
5
4
3
2
3
3
0
3
7
5
6
5
6
9
9
9
9
8

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

Precipitation Probability (%)

36
65
95
95
95
95
95
95
94
95
95
95
95
54
37
36
45
38
22
28
37
46
44
60

Precipitation Amount (mm)

0
0.3
0.6
0.7
0.9
0.7
1.2
1
0.7
0.8
0.7
1.6
1.4
0.2
0
0.2
0.4
0.3
0
0
0
0.3
0
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
83
83
83
86
87
87
93
93
95
95
95
100
93
90
84
84
84
83
78
73
73
73
73

Pressure (mb)

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

Ozone (du)

302
300
299
299
302
301
301
304
305
305
307
313
317
330
332
334
334
337
338
340
345
346
353
347

Tuesday 8

Waning Crescent 4%

04:12

18:52

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: 06:41, Set: 19:47, Transit: 13:13. Moon - Rise: 04:12, Set: 18:52. Civil Dark: 20:22 - 06:06. Nautical Dark: 21:04 - 05:24. Astro Dark: 21:50 - 04:39

Total Clouds (% Sky Obscured)

72
49
48
51
61
68
75
78
84
86
81
93
85
81
69
64
91
82
73
66
67
81
87
80

Low Clouds (% Sky Obscured)

56
29
24
30
35
45
65
66
74
82
75
88
74
78
69
64
91
82
73
66
66
81
87
80

Medium Clouds (% Sky Obscured)

8
8
5
5
6
8
10
10
8
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
1
2
4
10

ISS Passover

Visibility (miles)

5
6
6
7
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

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

Precipitation Probability (%)

58
57
48
31
24
34
38
34
23
17
23
24
24
22
24
24
28
23
24
22
11
6
3
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

20
19
20
20
21
20
21
21
21
21
20
19
19
17
17
16
15
14
14
13
11
11
10
10

Chance of Frost

Temperature (°C)

15
15
14
14
14
14
13
14
13
13
13
14
14
13
14
14
14
14
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
79
80
83
83
82
83
83
82
79
76
78
76
79
79
78
79
80
78
75
74
68
69
67

Pressure (mb)

1010
1010
1010
1011
1012
1012
1013
1013
1013
1014
1014
1014
1015
1015
1016
1017
1017
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

345
344
345
346
346
346
344
344
343
342
340
337
336
336
336
334
333
331
331
329
325
321
317
314

Wednesday 9

Waning Crescent 1%

05:39

19:08

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: 06:43, Set: 19:45, Transit: 13:13. Moon - Rise: 05:39, Set: 19:08. Civil Dark: 20:20 - 06:08. Nautical Dark: 21:02 - 05:26. Astro Dark: 21:47 - 04:41

Total Clouds (% Sky Obscured)

78
70
74
82
89
93
96
100
100
100
100
100
100
100
98
95
94
95
97
99
100
100
100
100

Low Clouds (% Sky Obscured)

48
47
56
73
83
71
61
49
61
73
84
75
66
57
60
62
64
69
73
79
80
80
75
66

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
93
94
96
97
98
21
14
18
13
12
8
4
4
5
5
0
0
5

High Clouds (% Sky Obscured)

21
20
18
25
32
55
77
100
100
100
100
98
80
75
47
22
0
12
5
43
78
86
96
97

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
5
8
9
9
9
9
9
8
7
6
9
6
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
3
2
8
19
14
20
14
16
47
53
33
25
24
30
30
24
38
37
38
42
44
41
36

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
10
10
10
9
10
10
10
11
10
11
12
12
12
12
12
13
13
14
14
15
15

Dew Point (°C)

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

Relative Humidity (%)

68
75
80
86
84
83
87
87
89
87
89
93
92
95
93
90
90
92
95
95
95
89
89
89

Pressure (mb)

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

Ozone (du)

312
309
305
301
298
299
301
301
301
304
308
309
309
311
313
312
311
308
305
302
301
299
297
296

Thursday 10

Waning Crescent 0%

07:04

19:21

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 OK

Sun - Rise: 06:44, Set: 19:42, Transit: 13:12. Moon - Rise: 07:04, Set: 19:21. Civil Dark: 20:17 - 06:10. Nautical Dark: 20:59 - 05:28. Astro Dark: 21:44 - 04:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
93
85
78
82
86
89
83
81
81
76
74
70
66
58
47
45

Low Clouds (% Sky Obscured)

74
75
83
97
99
100
100
100
92
85
78
78
77
76
72
70
68
62
56
41
38
42
43
40

Medium Clouds (% Sky Obscured)

5
10
10
5
8
9
9
13
10
3
0
4
8
11
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

98
100
100
100
100
70
32
0
1
0
0
0
0
0
9
18
34
46
60
70
60
49
35
33

ISS Passover

Visibility (miles)

9
9
9
8
8
9
8
7
5
4
4
5
5
7
5
7
8
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

36
32
42
42
43
40
48
64
72
69
66
56
48
51
46
39
41
31
19
13
9
8
2
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.5
0.6
0.6
0.4
0.3
0.4
0.2
0
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
15
15
16
16
16
15
15
15
13
12
13
9
7
8
10
10
9
9
10
10
9
9
8

Chance of Frost

Temperature (°C)

18
17
17
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
17
17
17
17
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
93
95
95
95
95
95
96
96
95
95
95
95
95
92
87
85
82
79
77
76
76
74

Pressure (mb)

1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1016
1017
1017
1018
1019
1020
1020
1021
1022
1022
1022

Ozone (du)

293
291
289
289
289
290
290
289
290
290
290
291
292
293
293
293
293
294
294
295
296
294
292
290

Friday 11

New Moon 2%

08:25

19:32

17 OK
18 OK
19 OK
20 OK
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: 06:46, Set: 19:40, Transit: 13:12. Moon - Rise: 08:25, Set: 19:32. Civil Dark: 20:15 - 06:12. Nautical Dark: 20:56 - 05:30. Astro Dark: 21:41 - 04:46

Total Clouds (% Sky Obscured)

42
42
43
46
49
58
67
76
80
81
78
84
91
99
97
95
95
94
94
94
96
98
100
100

Low Clouds (% Sky Obscured)

39
42
39
32
30
35
48
58
62
65
62
73
85
96
87
81
78
80
79
78
73
69
61
48

Medium Clouds (% Sky Obscured)

0
0
4
8
12
9
6
4
3
3
3
2
2
1
6
10
14
13
14
13
14
12
13
19

High Clouds (% Sky Obscured)

30
28
29
27
21
28
38
49
37
25
14
24
33
42
38
36
34
45
57
61
59
62
74
86

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
3
0
3
6
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 (%)

3
2
2
1
0
1
1
0
0
0
0
3
11
29
37
40
48
38
34
38
26
27
35
20

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
5
6
5
5
6
5
5
4
4
5
5
6
7
8
9
9
9
9
10
12
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
81
82
84
86
87
86
86
84
83
80
78
80
83
86
89
90
93
95
96
98
95
93
92

Pressure (mb)

1023
1023
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

288
287
286
286
287
287
286
286
286
286
287
287
289
292
294
294
294
294
294
294
295
295
295
295

Saturday 12

Waxing Crescent 7%

09:45

19:43

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: 06:48, Set: 19:38, Transit: 13:12. Moon - Rise: 09:45, Set: 19:43. Civil Dark: 20:12 - 06:13. Nautical Dark: 20:54 - 05:32. Astro Dark: 21:38 - 04:48

Total Clouds (% Sky Obscured)

100
99
98
97
96
93
91
89
92
95
97
97
98
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

38
33
49
70
85
82
79
75
70
62
55
69
82
97
96
96
95
97
98
100

Medium Clouds (% Sky Obscured)

25
29
26
23
21
16
12
9
12
14
17
15
11
11
18
21
29
23
17
12

High Clouds (% Sky Obscured)

92
95
85
73
60
62
64
66
78
89
97
97
98
100
99
98
97
78
64
56

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
7
4
2
4
6
8
6
5
3
2
1

Fog (%)

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
Light Rain

Precipitation Probability (%)

21
31
17
17
28
18
19
26
20
18
20
16
21
30
34
36
43
43
51
66

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
17
17
17
17
17
17
17
16
16
16
16
17
17
17
17
18
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
93
93
93
92
93
92
92
93
95
98
96
96
96
96
96
96
96
98

Pressure (mb)

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

Ozone (du)

298
300
302
303
304
305
304
304
303
301
298
295
294
293
292
290
288
287
286
286

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

Generated: 06/09/26 17:09:52. Forecast: 06/09/26 to 12/09/26. Timezone: UTC+1.00