Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:53

18:31

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
08 Bad

Sun - Rise: 06:58, Set: 19:23, Transit: 13:10. Moon - Rise: 03:53, Set: 18:31. Civil Dark: 19:57 - 06:24. Nautical Dark: 20:38 - 05:44. Astro Dark: 21:21 - 05:01

Total Clouds (% Sky Obscured)

99
100
100
97
96
95
98
95
97
98
90
90
93
99
98
99
100
98
100
99
100
97
97
96

Low Clouds (% Sky Obscured)

87
89
82
84
83
74
85
71
90
81
86
85
71
84
85
84
87
87
85
85
83
74
76
78

Medium Clouds (% Sky Obscured)

89
91
67
33
23
27
23
33
39
42
39
34
22
19
24
92
39
50
17
45
42
46
66
68

High Clouds (% Sky Obscured)

4
40
46
50
45
28
29
18
7
18
16
33
55
62
20
46
95
77
100
81
100
81
30
10

ISS Passover

Visibility (miles)

4
0
0
0
1
1
6
9
7
7
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

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

Precipitation Probability (%)

59
1
57
45
29
26
26
29
10
22
11
7
6
11
15
9
7
8
8
11
18
18
33
38

Precipitation Amount (mm)

0.3
0
0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

15
17
17
17
17
17
17
17
16
17
16
16
16
16
16
16
16
16
15
16
16
15
16
15

Relative Humidity (%)

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

Pressure (mb)

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

Ozone (du)

260
259
261
264
264
262
262
261
261
261
262
261
262
263
262
262
262
261
263
264
263
263
264
265

Friday 19

Waning Crescent 6%

05:12

18:44

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
08 Bad

Sun - Rise: 07:00, Set: 19:21, Transit: 13:09. Moon - Rise: 05:12, Set: 18:44. Civil Dark: 19:55 - 06:26. Nautical Dark: 20:35 - 05:45. Astro Dark: 21:18 - 05:03

Total Clouds (% Sky Obscured)

98
94
92
90
96
97
100
100
88
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

77
78
88
73
86
89
100
100
88
100
100
91
98
94
75
64
85
84
95
89
84
83
97
96

Medium Clouds (% Sky Obscured)

60
29
25
25
44
95
83
95
52
51
50
57
59
79
100
89
77
100
100
100
100
99
100
98

High Clouds (% Sky Obscured)

61
42
37
46
70
70
100
83
42
79
100
100
100
67
67
76
100
100
74
100
100
78
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
6
5
2
6
7
7
7
7
7
7
7
7
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
5
9
9
2
20

Precipitation Type

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

Precipitation Probability (%)

28
17
12
20
6
10
27
31
24
19
11
16
44
88
95
88
95
95
95
95
95
85
84
90

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
2.5
0.6
1
1.3
1.6
2.1
1.2
0.5
0.4
0.7

Wind Speed/Direction (mph)

14
14
14
16
15
16
16
15
12
11
9
8
7
6
5
5
3
3
2
2
4
3
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
90
88
83
80
80
80
80
82
89
95
96
96
96
96
95
95
96
96
96
96
96
95
95

Pressure (mb)

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

Ozone (du)

265
265
264
264
264
264
264
264
265
265
266
265
263
262
263
263
264
265
265
266
269
270
272
273

Saturday 20

Waning Crescent 2%

06:28

18:54

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
08 Bad

Sun - Rise: 07:01, Set: 19:18, Transit: 13:09. Moon - Rise: 06:28, Set: 18:54. Civil Dark: 19:52 - 06:28. Nautical Dark: 20:33 - 05:47. Astro Dark: 21:15 - 05:05

Total Clouds (% Sky Obscured)

100
100
100
100
98
97
98
94
100
43
30
27
100
100
99
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

85
97
96
97
85
88
87
81
100
43
30
27
75
75
80
81
93
93
88
82
60
55
56
56

Medium Clouds (% Sky Obscured)

100
100
75
70
92
94
94
86
78
43
30
27
63
54
45
40
47
90
60
62
74
77
56
79

High Clouds (% Sky Obscured)

58
82
100
86
3
0
60
0
0
0
0
0
3
0
0
10
97
49
51
57
92
98
89
69

ISS Passover

Visibility (miles)

9
9
8
9
9
7
9
9
9
5
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

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

Precipitation Probability (%)

79
95
95
70
90
95
95
88
70
57
65
53
47
62
57
40
54
63
44
47
36
32
32
44

Precipitation Amount (mm)

0.3
0.4
0.5
0
0.2
0.4
0.9
0.2
0.3
0
0.5
0.3
0
0.4
0.3
0
0.2
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

2
2
2
3
4
7
9
10
10
13
15
14
13
13
13
14
14
16
19
22
22
20
19
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
16
17
17
17
16
16
16
15
12
13
12
11
10
10
7
7
6
6
5
5
5
6
6

Dew Point (°C)

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

Relative Humidity (%)

95
95
93
95
92
86
79
83
79
77
82
82
82
80
83
87
89
90
87
90
83
83
84
83

Pressure (mb)

1008
1008
1008
1007
1006
1005
1004
1004
1003
1003
1003
1003
1002
1002
1001
1002
1001
1001
1002
1003
1004
1005
1006
1007

Ozone (du)

272
272
272
273
274
275
279
285
286
291
296
301
304
312
318
317
314
312
311
311
312
314
316
316

Sunday 21

New Moon 0%

07:42

19:03

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
08 Bad

Sun - Rise: 07:03, Set: 19:16, Transit: 13:09. Moon - Rise: 07:42, Set: 19:03. Civil Dark: 19:50 - 06:29. Nautical Dark: 20:30 - 05:49. Astro Dark: 21:12 - 05:07

Total Clouds (% Sky Obscured)

99
99
99
99
98
98
98
95
94
94
93
91
90
90
90
90
90
90
90
85
85
80
80
80

Low Clouds (% Sky Obscured)

53
57
63
67
60
54
51
39
34
30
25
25
25
20
25
25
25
25
25
25
20
20
20
20

Medium Clouds (% Sky Obscured)

62
81
90
87
27
18
7
7
25
49
14
35
35
25
25
30
22
9
2
2
2
2
1
0

High Clouds (% Sky Obscured)

54
37
21
4
28
51
67
51
41
55
46
45
55
55
55
60
34
5
10
2
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

57
60
57
58
57
50
45
41
31
19
26
31
38
44
46
39
32
28
27
22
19
13
6
7

Precipitation Amount (mm)

0
0.3
0
0
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
87
92
93
90
93
90
87
86
86
85
83
83
85
87
87
87
87
87
87
87
85
85
81

Pressure (mb)

1008
1009
1010
1010
1011
1011
1012
1013
1013
1014
1015
1016
1016
1017
1017
1018
1018
1019
1019
1019
1020
1020
1021
1022

Ozone (du)

316
317
318
319
318
318
318
318
318
319
320
318
317
317
317
316
316
316
316
317
317
316
315
315

Monday 22

Waxing Crescent 1%

08:56

19:12

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

Sun - Rise: 07:05, Set: 19:13, Transit: 13:08. Moon - Rise: 08:56, Set: 19:12. Civil Dark: 19:47 - 06:31. Nautical Dark: 20:28 - 05:51. Astro Dark: 21:10 - 05:09

Total Clouds (% Sky Obscured)

80
77
63
66
94
94
91
89
62
40
15
13
15
18
17
15
18
20
23
24
25
26
39
48

Low Clouds (% Sky Obscured)

25
33
38
50
63
61
58
51
38
29
15
9
0
0
0
0
0
0
0
4
8
11
11
10

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
18
17
15
18
20
23
24
25
26
25
22

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
4
1
1
1
2
4
18
17
15
18
20
23
24
25
26
39
48

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 (%)

11
3
2
1
0
0
0
1
2
1
0
1
0
0
0
0
1
1
1
4
5
6
11
14

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
6
7
7
7
7
7
7
6
6
7
6
6
6
6
6
6
5
5
6
5
6

Relative Humidity (%)

81
78
75
68
64
68
66
64
69
70
72
78
84
85
87
87
87
85
85
84
84
85
84
81

Pressure (mb)

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

Ozone (du)

316
316
315
314
313
312
311
310
309
308
306
304
303
302
302
302
301
301
300
300
299
298
297
297

Tuesday 23

Waxing Crescent 3%

08:56

19:21

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
08 Bad

Sun - Rise: 07:06, Set: 19:11, Transit: 13:08. Moon - Rise: 08:56, Set: 19:21. Civil Dark: 19:45 - 06:33. Nautical Dark: 20:25 - 05:53. Astro Dark: 21:07 - 05:11

Total Clouds (% Sky Obscured)

60
73
84
95
97
98
100
100
100
100
99
96
87
84
91
100
100
100
100
99
98
96
95
97

Low Clouds (% Sky Obscured)

8
10
2
4
13
23
33
41
49
59
55
51
45
39
35
32
37
35
44
49
63
74
78
73

Medium Clouds (% Sky Obscured)

28
26
19
17
13
13
14
33
52
70
56
43
32
41
58
76
90
90
90
75
62
46
28
22

High Clouds (% Sky Obscured)

59
73
84
95
95
91
95
64
31
0
1
1
0
29
57
90
90
90
90
90
81
76
72
76

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 (%)

11
28
35
39
38
35
29
32
29
22
21
20
21
18
13
2
10
11
7
15
16
8
11
9

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)

2
3
3
3
3
4
6
7
5
5
5
5
4
4
4
5
5
5
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
73
79
84
89
90
90
90
92
93
93
93
90
90
88
88
87
86
86
84
84
86
87
84

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1026
1025
1025
1025
1025
1025
1025
1026

Ozone (du)

297
298
297
297
297
297
297
296
296
295
295
295
295
295
295
295
295
295
294
294
294
294
293
294

Wednesday 24

Waxing Crescent 7%

10:10

19:33

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: 07:08, Set: 19:09, Transit: 13:08. Moon - Rise: 10:10, Set: 19:33. Civil Dark: 19:43 - 06:34. Nautical Dark: 20:23 - 05:54. Astro Dark: 21:04 - 05:13

Total Clouds (% Sky Obscured)

99
94
88
83
72
61
49
43
62
78
88
86
81
86
91
97
98
98
99
98
96
95

Low Clouds (% Sky Obscured)

71
72
72
64
56
50
44
31
19
9
12
17
22
29
38
51
49
35
18
24
29
35

Medium Clouds (% Sky Obscured)

24
26
28
35
44
58
49
42
42
41
37
42
42
37
46
55
71
73
75
73
65
57

High Clouds (% Sky Obscured)

86
86
86
83
72
61
49
43
62
78
88
86
81
86
91
97
98
98
98
89
83
77

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

Fog (%)

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

Precipitation Probability (%)

3
11
12
7
22
25
23
28
30
19
36
38
21
29
32
30
24
17
13
12
11
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
10
10
10
14
14
14
14
15
16
13
14
15
15
14
14
10
10
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

83
81
79
76
74
75
75
75
78
82
83
84
86
87
90
90
92
90
90
88
89
89

Pressure (mb)

1026
1026
1026
1026
1026
1026
1026
1025
1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

294
294
294
294
295
294
293
293
292
292
292
292
292
291
291
291
290
291
292
293
294
294

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

Generated: 18/09/25 09:04:23. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00