Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 7

Waning Crescent 25%

23:55

17:03

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

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)

18
28
37
62
10
17
19
23
17
50
16
59
11
8
2
2
4
6
11
7
7
31
41
38

Low Clouds (% Sky Obscured)

18
28
36
23
0
8
18
22
17
17
3
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
4
2
3

High Clouds (% Sky Obscured)

18
28
37
56
10
12
7
8
4
46
16
36
10
8
2
2
4
6
11
7
7
31
41
38

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
40
56
56
15
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
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

5
6
7
8
8
9
9
9
7
6
4
3
3
3
3
3
4
5
5
5
5
5
5
4

Chance of Frost

Temperature (°C)

15
16
17
18
18
19
19
18
18
18
17
16
15
14
14
13
13
13
13
12
12
12
13
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
58
54
55
56
57
59
62
62
63
67
74
82
83
86
87
89
89
89
87
81
80
76
69

Pressure (mb)

1025
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1020
1020

Ozone (du)

341
341
341
339
338
337
335
334
334
333
334
334
330
328
332
330
328
325
323
321
320
321
322
322

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 OK
23 OK
00 OK
01 OK
02 Bad
03 OK
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

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)

52
77
82
86
98
100
83
67
59
59
74
61
63
43
37
43
46
82
40
49
67
73
98
92

Low Clouds (% Sky Obscured)

0
0
0
1
1
2
1
1
0
0
1
8
5
1
1
0
0
0
0
0
0
4
27
33

Medium Clouds (% Sky Obscured)

22
49
81
86
80
84
51
45
28
32
62
54
45
37
32
31
35
42
27
32
36
37
51
62

High Clouds (% Sky Obscured)

52
70
69
46
57
46
71
47
41
26
28
8
4
0
0
2
6
62
4
12
40
38
94
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
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
52
47
45
42
42
46
48
51
52
55
63
65
72
74
74
75
75
74
73
70
70
69
62

Pressure (mb)

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

Ozone (du)

323
324
326
325
325
325
324
324
323
322
322
324
327
328
327
326
326
324
323
322
322
321
322
321

Sunday 9

Waning Crescent 15%

02:05

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 OK

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)

100
72
95
96
99
98
100
100
100
74
84
77
95
96
98
100
99
100
88
85
52
69
49
38

Low Clouds (% Sky Obscured)

13
42
45
72
72
59
58
43
26
42
55
52
62
77
95
96
91
94
77
56
40
37
24
23

Medium Clouds (% Sky Obscured)

63
55
55
81
95
70
58
26
6
21
25
27
41
43
49
55
55
52
39
40
11
16
12
6

High Clouds (% Sky Obscured)

100
61
87
77
90
90
100
100
100
40
45
30
39
39
43
99
45
66
58
29
25
35
23
13

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
7
7
2
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
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6
3
1
0
0
0
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)

5
7
8
8
9
7
7
6
6
6
6
6
4
4
6
5
3
4
5
4
4
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
18
18
18
18
19
19
20
20
19
20
18
17
17
17
17
17
18
18
17
17
17
17
19

Dew Point (°C)

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

Relative Humidity (%)

64
68
70
71
76
78
81
80
77
77
82
90
96
96
96
98
98
96
98
96
95
93
93
87

Pressure (mb)

1014
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019

Ozone (du)

321
321
320
320
318
318
318
318
317
317
316
314
313
313
313
312
312
311
311
310
309
309
308
308

Monday 10

Waning Crescent 8%

03:35

20:02

09 OK
10 OK
11 OK
12 Good
13 OK
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 OK
06 OK
07 OK
08 OK

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)

40
37
22
15
37
57
84
98
97
86
84
85
81
82
78
80
80
85
85
66
44
26
34
45

Low Clouds (% Sky Obscured)

20
15
7
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

2
2
4
3
9
9
13
18
23
28
23
18
12
8
6
3
2
1
0
0
0
0
0
0

High Clouds (% Sky Obscured)

17
30
21
15
37
39
42
92
89
34
28
40
21
26
24
30
35
45
55
50
36
25
34
43

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

5
6
8
8
9
8
8
8
7
6
5
4
3
3
5
6
7
8
9
9
9
9
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
69
63
57
53
51
52
52
54
57
61
72
79
77
68
64
62
62
64
65
64
66
65
61

Pressure (mb)

1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1022
1022

Ozone (du)

307
306
306
305
306
306
305
306
307
308
308
307
306
307
307
309
310
312
314
314
313
314
313
313

Tuesday 11

Waning Crescent 2%

05:09

20:29

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

Sun - Rise: 05:55, Set: 20:49, Transit: 13:21. Moon - Rise: 05:09, Set: 20:29. Civil Dark: 21:28 - 05:16. Nautical Dark: 22:19 - 04:25. Astro Dark: 23:24 - 03:21

Total Clouds (% Sky Obscured)

50
49
51
55
46
34
25
43
52
81
66
51
41
57
73
88
68
50
34
60
75
89
93
90

Low Clouds (% Sky Obscured)

0
1
3
5
4
2
0
4
8
12
8
4
0
0
0
0
0
0
0
10
26
45
51
53

Medium Clouds (% Sky Obscured)

0
0
0
0
2
4
5
5
5
5
4
2
0
7
13
26
31
39
34
60
70
76
80
82

High Clouds (% Sky Obscured)

47
42
41
49
38
19
10
31
36
69
59
51
41
57
73
88
68
50
34
32
14
12
9
5

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

20
22
24
25
27
27
27
27
26
25
25
23
22
21
21
22
20
19
18
17
18
18
18
19

Feels Like (°C)

20
23
23
26
26
27
28
28
26
26
25
24
22
20
19
19
17
18
17
17
17
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

58
51
46
42
39
37
36
36
41
45
57
62
64
57
49
44
48
50
52
56
54
53
52
49

Pressure (mb)

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

Ozone (du)

313
312
311
311
311
312
312
312
311
310
310
311
310
310
310
310
311
310
309
307
306
305
304
305

Wednesday 12

New Moon 0%

06:41

20:48

09 Bad
10 Bad
11 Bad
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
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: 05:56, Set: 20:47, Transit: 13:21. Moon - Rise: 06:41, Set: 20:48. Civil Dark: 21:26 - 05:18. Nautical Dark: 22:17 - 04:27. Astro Dark: 23:21 - 03:25

Total Clouds (% Sky Obscured)

90
75
62
46
42
35
32
44
47
52
62
73
83
87
90
94
87
81
77
84
93
100
91
82

Low Clouds (% Sky Obscured)

54
33
15
0
0
0
0
0
0
0
0
0
0
4
7
6
5
5
0
17
35
52
52
51

Medium Clouds (% Sky Obscured)

80
68
55
43
37
31
22
18
14
9
15
18
19
20
21
21
19
7
0
0
0
0
5
9

High Clouds (% Sky Obscured)

5
12
18
10
15
26
32
41
43
44
38
33
36
72
74
79
69
66
63
70
81
88
61
30

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
1
2
4
6
6
10

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
4
5
8
7
7
7
5
4
3
3
3
3
3
3
4
3
3
4
4
4
5
2

Chance of Frost

Temperature (°C)

21
23
24
26
27
26
24
23
22
21
21
20
19
18
18
18
18
18
18
17
17
17
17
18

Feels Like (°C)

15
16
17
17
18
26
25
25
24
24
23
20
20
21
20
19
18
18
19
18
18
18
18
18

Dew Point (°C)

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

Relative Humidity (%)

46
45
42
40
38
42
47
54
58
63
67
74
81
88
89
90
92
93
93
96
95
93
92
89

Pressure (mb)

1019
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1019
1019
1019
1019
1019
1020
1020

Ozone (du)

305
305
306
306
307
308
309
310
310
310
310
311
312
313
313
314
315
315
315
315
318
320
322
320

Thursday 13

Waxing Crescent 1%

08:08

21:02

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: 05:58, Set: 20:45, Transit: 13:21. Moon - Rise: 08:08, Set: 21:02. Civil Dark: 21:24 - 05:19. Nautical Dark: 22:14 - 04:30. Astro Dark: 23:17 - 03:28

Total Clouds (% Sky Obscured)

75
73
69
65
64
62
58
69
81
94
93
94
91
92
94
98
93
87
79
80
87
88

Low Clouds (% Sky Obscured)

51
51
51
51
47
43
35
38
44
46
53
57
65
61
65
61
67
67
71
72
76
80

Medium Clouds (% Sky Obscured)

16
16
15
14
13
14
12
11
7
7
5
3
0
14
28
39
22
11
4
3
2
0

High Clouds (% Sky Obscured)

6
4
2
1
6
12
18
28
47
60
65
65
65
68
77
96
90
82
73
74
71
68

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 (%)

11
9
7
1
3
2
0
0
1
0
0
1
2
5
6
6
6
2
0
3
4
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)

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

Chance of Frost

Temperature (°C)

18
19
19
20
20
20
20
20
20
19
19
18
17
17
17
17
17
17
17
17
17
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
81
76
70
65
64
64
65
67
70
73
80
83
90
90
90
90
90
90
90
90
92

Pressure (mb)

1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

319
318
316
315
314
313
312
312
311
310
310
310
310
309
309
309
309
309
310
310
312
313

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

Generated: 07/08/26 09:56:11. Forecast: 07/08/26 to 13/08/26. Timezone: UTC+1.00