Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 4

Waning Gibbous 60%

22:38

12:42

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: 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)

100
100
100
99
81
95
100
87
94
84
92
51
54
72
73
87
89
95
83
82
82
94
86
86

Low Clouds (% Sky Obscured)

62
50
45
49
53
49
59
54
78
64
75
39
54
72
73
73
77
91
83
72
68
87
74
73

Medium Clouds (% Sky Obscured)

98
100
100
95
30
74
39
78
80
25
29
22
28
22
31
25
25
16
0
15
18
16
11
11

High Clouds (% Sky Obscured)

95
98
100
94
29
43
100
55
42
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

5
5
6
5
5
5
4
9
9
9
9
7
8
9
9
9
7
7
9
3
4
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

61
50
59
63
67
73
72
56
41
35
42
40
43
43
47
47
45
40
41
51
47
32
33
32

Precipitation Amount (mm)

0.5
0.6
0.4
0.6
0.6
0.7
0.7
0.3
0
0
0.3
0.3
0.3
0.2
0.2
0.3
0.2
0
0
0.4
0.3
0
0
0

Wind Speed/Direction (mph)

14
14
12
11
12
13
13
13
12
10
10
11
13
13
13
13
13
13
13
13
16
17
18
18

Chance of Frost

Temperature (°C)

19
20
20
20
21
21
21
20
20
19
19
19
18
18
18
17
17
17
17
16
16
15
15
14

Feels Like (°C)

18
19
18
20
20
21
20
19
19
19
19
18
18
17
17
17
16
16
15
14
13
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

95
89
86
85
82
81
82
86
88
89
91
88
89
95
95
95
95
93
92
96
95
95
90
89

Pressure (mb)

1007
1007
1008
1008
1008
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1009
1009
1009
1010
1010
1011
1012
1012

Ozone (du)

327
327
328
331
333
333
331
331
332
332
333
333
332
332
331
330
328
328
328
330
335
336
341
345

Wednesday 5

Waning Gibbous 48%

22:55

14:07

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: 05:45, Set: 21:00, Transit: 13:22. Moon - Rise: 22:55, Set: 14:07. Civil Dark: 21:41 - 05:05. Nautical Dark: 22:35 - 04:11. Astro Dark: 23:50 - 02:58

Total Clouds (% Sky Obscured)

87
86
91
90
84
61
51
49
47
55
61
71
39
53
52
62
57
64
72
77
77
78
80
66

Low Clouds (% Sky Obscured)

71
73
68
67
67
37
31
30
39
38
41
35
34
46
43
56
57
60
53
59
50
60
66
66

Medium Clouds (% Sky Obscured)

22
24
29
31
28
34
34
32
29
39
36
39
19
29
35
30
36
39
38
35
41
37
33
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
35
45
31
0
0
0
0
1
1

ISS Passover

Visibility (miles)

6
7
4
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
Light Rain
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 (%)

39
56
51
38
33
27
26
27
22
35
36
30
35
26
19
21
23
21
29
29
23
24
28
27

Precipitation Amount (mm)

0
0.4
0.3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
89
85
80
73
64
63
62
62
67
72
73
79
79
80
80
83
84
86
86
86
86
84

Pressure (mb)

1013
1014
1014
1015
1015
1016
1016
1016
1016
1017
1017
1017
1018
1019
1019
1019
1020
1020
1020
1021
1021
1021
1022
1023

Ozone (du)

347
350
350
352
354
355
355
355
357
359
359
361
361
361
360
358
354
354
354
355
355
356
352
352

Thursday 6

Third Quarter 37%

23:19

15:35

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

Sun - Rise: 05:47, Set: 20:58, Transit: 13:22. Moon - Rise: 23:19, Set: 15:35. Civil Dark: 21:39 - 05:06. Nautical Dark: 22:33 - 04:13. Astro Dark: 23:45 - 03:02

Total Clouds (% Sky Obscured)

57
57
54
56
48
52
26
43
31
44
98
76
57
59
65
59
57
60
61
95
99
29
38
46

Low Clouds (% Sky Obscured)

56
57
54
52
40
37
21
24
17
25
31
32
35
41
48
50
35
43
43
25
7
1
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
3
14
21
19
10
6
19
26
26
21
9
37
2
1
0

High Clouds (% Sky Obscured)

0
0
0
0
2
30
18
32
15
20
95
56
19
39
40
4
4
0
19
89
99
29
38
46

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 (%)

23
23
16
8
0
0
0
0
0
0
0
0
0
0
0
1
1
2
3
2
1
0
1
2

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)

14
14
14
13
13
13
12
10
8
6
7
6
5
5
5
5
5
5
4
5
5
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
75
72
68
66
65
64
63
64
63
68
76
82
83
84
84
86
87
90
92
90
92
90
83

Pressure (mb)

1023
1024
1024
1025
1025
1025
1025
1026
1025
1025
1025
1026
1026
1026
1026
1026
1026
1025
1025
1025
1024
1024
1024
1024

Ozone (du)

352
354
350
348
347
345
343
341
338
334
333
333
334
335
335
335
335
336
336
336
337
339
340
342

Friday 7

Waning Crescent 25%

23:55

17:03

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: 05:48, Set: 20:57, Transit: 13:22. Moon - Rise: 23:55, Set: 17:03. Civil Dark: 21:37 - 05:08. Nautical Dark: 22:30 - 04:16. Astro Dark: 23:41 - 03:06

Total Clouds (% Sky Obscured)

52
59
70
84
83
95
90
91
88
86
85
86
91
84
94
90
94
97
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
6
12
17
19
23
26
19
10
0
0
10
13
14
0
0
4
8
10
16
28

Medium Clouds (% Sky Obscured)

11
36
31
37
35
33
35
33
31
28
28
27
26
24
25
27
28
29
30
30
30
29
30
30

High Clouds (% Sky Obscured)

52
46
61
60
57
84
67
68
35
30
27
26
48
22
87
72
82
87
97
98
99
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 (%)

0
2
1
0
0
1
3
16
16
17
21
11
0
1
1
1
11
19
24
31
39
44
42
45

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
71
65
63
61
61
61
61
62
64
68
78
86
87
90
92
92
93
93
92
92
90
86
82

Pressure (mb)

1024
1024
1024
1024
1023
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1020
1020
1019
1018
1018
1017
1017
1016
1016

Ozone (du)

343
349
347
341
338
336
337
337
337
340
338
336
333
331
329
329
328
327
327
325
325
325
325
326

Saturday 8

Waning Crescent 25%

00:50

18:21

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 OK
05 OK
06 Good
07 OK
08 OK

Sun - Rise: 05:50, Set: 20:55, Transit: 13:21. Moon - Rise: 00:50, Set: 18:21. Civil Dark: 21:35 - 05:10. Nautical Dark: 22:27 - 04:18. Astro Dark: 23:37 - 03:10

Total Clouds (% Sky Obscured)

100
100
100
98
95
94
91
86
81
73
70
68
62
62
62
63
61
54
47
28
22
17
20
29

Low Clouds (% Sky Obscured)

34
39
43
55
67
76
77
69
70
67
70
68
62
62
62
53
55
54
47
28
22
17
20
25

Medium Clouds (% Sky Obscured)

30
30
32
33
30
35
30
20
15
4
14
20
29
29
29
26
19
18
12
5
4
6
6
6

High Clouds (% Sky Obscured)

100
100
100
96
87
83
67
72
70
65
63
55
49
41
37
27
18
10
2
1
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

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

Precipitation Probability (%)

52
57
65
73
75
90
92
53
32
25
15
20
33
34
30
25
42
25
17
10
4
1
1
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
70
65
60
59
58
60
61
63
66
71
81
87
89
89
89
87
86
84
84
84
83
83
80

Pressure (mb)

1016
1016
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

326
326
324
322
321
322
323
322
322
323
322
322
322
323
323
323
323
324
324
324
323
323
322
322

Sunday 9

Waning Crescent 15%

02:05

19:21

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

Sun - Rise: 05:51, Set: 20:53, Transit: 13:21. Moon - Rise: 02:05, Set: 19:21. Civil Dark: 21:32 - 05:12. Nautical Dark: 22:25 - 04:20. Astro Dark: 23:33 - 03:14

Total Clouds (% Sky Obscured)

35
38
39
44
40
38
35
37
41
47
39
29
24
39
55
72
76
76
73
74
78
81
82
81

Low Clouds (% Sky Obscured)

29
34
38
40
37
34
30
31
31
31
28
25
21
34
48
61
60
59
55
63
72
81
82
81

Medium Clouds (% Sky Obscured)

5
4
3
3
3
2
3
11
17
21
17
11
6
9
12
16
19
13
10
7
3
0
0
0

High Clouds (% Sky Obscured)

1
1
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
8

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
5
6
8
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 (%)

3
4
7
11
9
5
1
3
6
10
12
19
22
25
27
19
13
14
19
14
11
15
11
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
76
76
76
77
77
77
77
78
80
82
86
92
96
96
96
96
95
90
89
87
86
87
79

Pressure (mb)

1014
1014
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017
1018
1018

Ozone (du)

321
321
320
319
317
316
315
314
314
315
316
317
318
318
319
320
320
322
323
324
324
324
324
324

Monday 10

Waning Crescent 8%

03:35

20:02

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

Sun - Rise: 05:53, Set: 20:51, Transit: 13:21. Moon - Rise: 03:35, Set: 20:02. Civil Dark: 21:30 - 05:14. Nautical Dark: 22:22 - 04:23. Astro Dark: 23:28 - 03:17

Total Clouds (% Sky Obscured)

81
75
74
73
73
74
72
60
47
36
49
64
84
90
95
99
95
92
86
76
74
63

Low Clouds (% Sky Obscured)

81
75
73
66
64
63
55
48
44
36
37
33
32
37
51
56
57
51
48
37
29
20

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
6
12
22
28
29
26
31
36
35

High Clouds (% Sky Obscured)

13
26
47
55
45
48
47
34
23
10
34
57
81
87
92
94
93
92
86
76
62
46

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 (%)

6
7
7
2
3
1
0
0
0
0
0
2
0
3
10
2
5
10
11
5
5
7

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
9
8
7
6
7
7
7
8
9
10
10
10
11
9
9
9
9
11
12
12
12

Relative Humidity (%)

71
66
60
54
49
49
50
50
54
59
63
66
70
74
69
65
61
67
74
83
83
84

Pressure (mb)

1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

324
324
323
323
322
323
323
323
323
322
322
322
322
322
322
322
321
322
322
322
321
319

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

Generated: 04/08/26 09:01:15. Forecast: 04/08/26 to 10/08/26. Timezone: UTC+1.00