Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 15

Waning Crescent 3%

04:28

19:53

11 Bad
12 Bad
13 Bad
14 Bad
15 OK
16 OK
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

Sun - Rise: 05:17, Set: 21:05, Transit: 13:12. Moon - Rise: 04:28, Set: 19:53. Civil Dark: 21:48 - 04:34. Nautical Dark: 22:48 - 03:34. Astro Dark: 00:32 - 01:43

Total Clouds (% Sky Obscured)

53
59
64
63
37
19
18
22
32
42
67
80
84
95
94
97
95
97
99
96
96
96
98
100

Low Clouds (% Sky Obscured)

53
59
64
39
35
19
18
17
29
42
46
54
58
69
69
59
42
46
49
85
87
79
84
100

Medium Clouds (% Sky Obscured)

0
0
0
16
0
0
5
11
15
15
13
15
12
23
46
57
38
93
97
92
72
62
51
69

High Clouds (% Sky Obscured)

22
5
2
3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
21
53

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
13
3
13
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 (%)

19
9
6
8
6
12
0
0
0
0
1
16
4
6
15
15
15
21
19
25
35
35
32
32

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)

12
13
13
13
17
16
15
13
12
10
8
6
5
4
2
3
4
4
5
5
4
5
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
4
5
5
5
6
6
6
6
5
5
5
5
5
4
5
4
4
4
5
6
6

Dew Point (°C)

4
4
4
3
3
3
3
4
4
4
3
3
2
0
2
4
4
4
4
5
5
5
6
7

Relative Humidity (%)

65
65
61
59
58
60
63
66
69
70
75
76
65
58
63
73
77
79
81
85
82
82
85
88

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1010
1010
1010
1009
1009
1009
1009
1008
1008
1008
1008
1008

Ozone (du)

403
401
399
397
397
397
398
398
397
397
396
395
394
394
393
393
392
391
392
391
391
393
392
392

Saturday 16

New Moon 0%

04:58

21:29

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
09 Bad
10 Bad

Sun - Rise: 05:16, Set: 21:07, Transit: 13:12. Moon - Rise: 04:58, Set: 21:29. Civil Dark: 21:50 - 04:32. Nautical Dark: 22:51 - 03:31. Astro Dark: 00:42 - 01:28

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
97
88
89
81
87
81
77
81
100
100
98
97
100
100
100

Low Clouds (% Sky Obscured)

77
85
100
94
86
91
92
92
93
88
64
67
51
54
50
70
62
49
46
61
63
65
60
66

Medium Clouds (% Sky Obscured)

84
99
100
100
99
100
100
100
99
49
25
71
27
26
0
0
3
4
50
83
86
100
100
100

High Clouds (% Sky Obscured)

64
100
100
99
93
91
96
70
0
37
4
50
40
52
54
55
49
100
100
88
71
100
80
50

ISS Passover

Visibility (miles)

9
9
9
9
8
5
6
4
4
2
6
6
5
9
7
9
9
9
9
9
9
8
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
34
53
70
73
74
84
92
73
69
42
52
58
45
29
19
11
17
19
19
27
28
29
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
10
10
10
10
10
10
10
9
10
10
10
10
10
9
9
8
8
8
8
9
9
10
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
91
93
95
96
95
95
96
95
93
91
87
85
87
87
88
88
87
84
84
81
77

Pressure (mb)

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

Ozone (du)

391
390
389
390
389
387
389
392
400
400
400
402
405
408
413
419
418
418
418
421
424
427
430
430

Sunday 17

Waxing Crescent 1%

05:42

23:01

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
09 Bad
10 Bad

Sun - Rise: 05:15, Set: 21:09, Transit: 13:12. Moon - Rise: 05:42, Set: 23:01. Civil Dark: 21:52 - 04:31. Nautical Dark: 22:53 - 03:29. Astro Dark: 00:57 - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
100
100
96
95
99
97
98
99
100
100
100
91
61
21
40
32
28
21

Low Clouds (% Sky Obscured)

57
45
53
34
57
52
54
62
67
67
74
71
75
86
100
100
91
91
61
21
40
32
28
21

Medium Clouds (% Sky Obscured)

100
100
100
96
100
98
100
100
78
73
60
61
85
61
100
92
100
59
40
21
31
25
20
21

High Clouds (% Sky Obscured)

100
100
97
41
100
50
100
40
60
20
0
0
0
0
0
0
0
0
0
0
27
32
28
21

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

13
38
44
36
34
50
86
81
95
95
70
73
80
84
95
95
95
95
95
92
62
67
82
59

Precipitation Amount (mm)

0
0
0
0
0
0.2
0.9
0.5
1.2
0.7
0.5
0.5
0.6
0.6
1.3
1
0.9
1.2
1.5
0.9
0.4
0.5
0.8
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
6
6
6
6
7
8
8
8
8
7
8
8
8
7
7
7
7
6
7
7
7
7

Relative Humidity (%)

76
72
68
71
67
74
80
91
90
93
90
90
91
93
91
91
90
90
90
91
90
84
80
78

Pressure (mb)

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

Ozone (du)

429
430
431
433
435
437
436
436
435
435
435
437
438
437
433
427
424
421
418
412
409
404
397
391

Monday 18

Waxing Crescent 5%

06:48

00:15

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
09 Bad
10 Bad

Sun - Rise: 05:13, Set: 21:10, Transit: 13:12. Moon - Rise: 06:48, Set: 00:15. Civil Dark: 21:54 - 04:29. Nautical Dark: 22:56 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

75
71
85
100
100
100
100
99
100
100
100
100
100
100
100
100
100
99
99
99
100
100
100
99

Low Clouds (% Sky Obscured)

75
71
79
78
72
76
72
67
95
96
97
97
98
99
95
92
88
90
92
95
92
89
88
83

Medium Clouds (% Sky Obscured)

34
43
82
100
100
100
100
99
100
100
100
100
100
100
96
93
72
53
65
50
67
65
99
73

High Clouds (% Sky Obscured)

37
5
10
19
23
52
79
99
100
100
100
100
100
100
87
13
44
5
12
34
49
37
45
27

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
5
5
4
4
6
9
4
0
1
6
9
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

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

Precipitation Probability (%)

59
62
53
56
67
72
86
95
95
94
79
71
71
89
79
73
58
61
53
41
59
74
95
95

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
12
13
12
12
12
13
14
16
15
13
13
13
15
15
15
14
13
14
15
15
16
17
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
8
9
9
8
9
10
10
9
9
9
8
8
8
8
9
9
10
10
9
10
9
9
9

Dew Point (°C)

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

Relative Humidity (%)

77
73
70
65
62
61
61
64
71
80
84
88
93
91
92
90
93
95
98
96
93
93
90
93

Pressure (mb)

1008
1009
1009
1008
1008
1008
1007
1006
1006
1005
1005
1005
1004
1004
1003
1002
1002
1001
1001
1002
1002
1002
1002
1002

Ozone (du)

389
390
387
384
382
379
377
377
373
370
371
372
374
379
385
394
394
391
388
385
383
386
389
393

Tuesday 19

Waxing Crescent 12%

08:11

01:08

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
09 Bad
10 Bad

Sun - Rise: 05:12, Set: 21:12, Transit: 13:12. Moon - Rise: 08:11, Set: 01:08. Civil Dark: 21:56 - 04:27. Nautical Dark: 22:58 - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
98
99
99
93
93
87
81
92
87
82
92
99
99
99
99
99
99
99
100
99
99
98
91

Low Clouds (% Sky Obscured)

79
78
84
87
92
92
87
81
85
81
75
79
82
83
87
90
94
93
92
92
90
87
84
78

Medium Clouds (% Sky Obscured)

71
24
24
62
20
30
36
42
47
46
45
50
53
51
50
47
46
40
33
30
27
21
22
19

High Clouds (% Sky Obscured)

13
0
13
83
83
35
23
0
0
1
4
3
10
18
26
38
32
24
15
7
6
5
4
1

ISS Passover

Visibility (miles)

2
1
2
3
8
8
9
9
4
4
7
9
6
9
8
7
5
4
6
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
Very Light Rain
None

Precipitation Probability (%)

94
81
71
72
75
68
68
65
78
82
79
81
64
35
40
27
28
29
29
32
31
34
41
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
98
96
96
95
92
92
92
93
95
93
93
93
93
93
93
93
95
95
95
93
92
89
89

Pressure (mb)

1003
1003
1004
1004
1005
1005
1006
1006
1007
1007
1008
1009
1009
1010
1011
1011
1012
1012
1013
1013
1014
1015
1015
1016

Ozone (du)

393
392
390
391
391
397
398
400
398
391
385
381
380
377
372
368
365
362
359
357
354
353
351
349

Wednesday 20

Waxing Crescent 21%

09:41

01:42

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
09 Bad
10 Bad

Sun - Rise: 05:10, Set: 21:13, Transit: 13:12. Moon - Rise: 09:41, Set: 01:42. Civil Dark: 21:57 - 04:26. Nautical Dark: 23:01 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

85
78
79
80
84
90
95
99
99
98
97
88
86
79
85
86
82
78
72
79
76
86
97
96

Low Clouds (% Sky Obscured)

72
68
64
59
55
53
51
48
59
69
79
78
74
70
73
84
81
75
55
35
25
30
30
24

Medium Clouds (% Sky Obscured)

13
11
5
3
0
7
14
21
18
15
13
23
39
55
74
81
82
60
35
11
18
22
30
26

High Clouds (% Sky Obscured)

0
0
2
5
4
8
17
21
37
44
51
38
28
17
23
28
34
25
18
15
43
66
92
70

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 (%)

24
32
23
19
20
14
12
5
6
6
8
6
5
5
11
21
34
28
23
12
5
2
3
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)

15
15
15
14
13
13
10
8
7
8
8
10
9
8
8
7
7
7
7
7
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
83
79
82
83
83
84
87
89
90
92
93
92
90
89
89
90
89
87
87
86
76
67
59

Pressure (mb)

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

Ozone (du)

347
344
341
340
338
337
338
339
340
339
339
339
340
341
343
344
344
345
344
343
342
343
344
345

Thursday 21

Waxing Crescent 31%

No Rise

02:05

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: 05:09, Set: 21:14, Transit: 13:12. Moon - Rise: No Rise, Set: 02:05. Civil Dark: 21:59 - 04:24. Nautical Dark: 23:03 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

94
92
80
68
55
73
89
94
79
66
59
73
86
100
100
100
100
92
84
75

Low Clouds (% Sky Obscured)

18
21
22
18
5
5
4
9
9
7
2
2
2
0
2
2
0
0
0
0

Medium Clouds (% Sky Obscured)

21
17
25
35
40
33
31
29
41
54
59
61
45
28
22
26
31
42
54
51

High Clouds (% Sky Obscured)

49
27
20
17
15
18
15
15
10
10
10
37
68
100
100
100
100
71
43
14

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
4
3
3
8
7
6
5
8
10
9
12
7
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

Wind Speed/Direction (mph)

7
7
7
7
7
7
6
5
4
5
6
8
7
7
7
8
8
9
9
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
60
59
60
61
61
65
72
77
80
83
88
89
89
89
87
83
81
82
83

Pressure (mb)

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

Ozone (du)

347
349
352
349
346
343
343
343
344
344
344
345
346
347
348
349
349
350
349
348

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

Generated: 15/05/26 11:15:27. Forecast: 15/05/26 to 21/05/26. Timezone: UTC+1.00