Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 15

Waning Crescent 0%

04:28

21:29

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:17, Set: 21:07, Transit: 13:12. Moon - Rise: 04:28, Set: 21:29. Civil Dark: 21:50 - 04:34. Nautical Dark: 22:51 - 03:34. Astro Dark: 00:32 - 01:43

Total Clouds (% Sky Obscured)

98
95
64
97
95
96
96
100
98
100
99
100
100
100
100
100
100
99
98
99
98
96
99
94

Low Clouds (% Sky Obscured)

70
63
62
58
63
60
78
83
89
100
87
85
91
87
55
73
68
80
88
88
88
64
64
62

Medium Clouds (% Sky Obscured)

29
41
64
87
84
84
92
98
82
36
37
73
100
99
98
97
93
94
91
97
38
37
24
81

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
52
97
87
100
100
98
34
3
0
37
44
77
41

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

23
18
15
4
16
8
29
24
28
27
34
28
44
64
69
56
45
64
81
72
66
54
61
68

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

3
2
1
3
3
4
4
4
4
4
4
5
7
9
9
11
11
11
12
11
9
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
85
84
85
86
88
90
90
88
88
87
88
88
87
88
95
95
95
93
96
96
91
91
91

Pressure (mb)

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

Ozone (du)

394
394
393
393
392
390
389
389
391
391
391
389
388
387
385
384
385
389
393
397
400
397
398
400

Saturday 16

New Moon 1%

04:58

23:01

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:16, Set: 21:09, Transit: 13:12. Moon - Rise: 04:58, Set: 23:01. Civil Dark: 21:52 - 04:32. Nautical Dark: 22:53 - 03:31. Astro Dark: 00:42 - 01:28

Total Clouds (% Sky Obscured)

81
88
57
86
97
100
97
96
95
87
100
77
79
99
97
88
82
97
84
98
100
100
100
100

Low Clouds (% Sky Obscured)

45
64
53
67
71
74
88
71
81
73
65
68
52
58
51
57
61
53
58
57
63
66
80
77

Medium Clouds (% Sky Obscured)

17
18
6
40
38
46
30
32
87
27
100
45
72
89
93
82
76
93
73
80
100
100
100
100

High Clouds (% Sky Obscured)

25
20
12
80
93
100
68
81
63
40
40
40
40
43
50
18
45
5
4
66
100
40
50
50

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

58
40
31
28
7
16
19
29
44
42
43
35
38
30
47
55
42
54
69
81
95
95
95
94

Precipitation Amount (mm)

0.5
0.3
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0.2
0
0.2
0.4
0.6
1.4
2.1
1.7
1

Wind Speed/Direction (mph)

10
12
12
11
12
12
10
10
11
13
13
14
15
15
15
16
17
18
19
18
17
16
14
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
85
85
87
85
87
85
85
85
80
77
76
73
70
71
71
72
76
81
84
93
93
93

Pressure (mb)

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

Ozone (du)

402
406
410
414
413
413
416
417
421
423
425
428
430
430
430
431
431
431
431
433
433
430
429
432

Sunday 17

Waxing Crescent 5%

05:42

23:01

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:15, Set: 21:10, Transit: 13:12. Moon - Rise: 05:42, Set: 23:01. Civil Dark: 21:54 - 04:31. Nautical Dark: 22:56 - 03:29. Astro Dark: 00:57 - N/A

Total Clouds (% Sky Obscured)

85
98
100
100
100
99
95
61
67
84
65
55
89
31
98
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

52
63
68
69
66
66
66
61
67
83
65
55
72
31
63
74
80
81
66
69
75
88
87
89

Medium Clouds (% Sky Obscured)

70
93
83
100
100
80
94
61
67
65
64
55
57
31
41
83
98
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

45
0
0
0
0
0
25
40
40
40
19
6
43
6
58
55
94
70
77
95
94
93
92
72

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

83
87
90
84
75
73
73
78
70
52
57
46
36
35
31
25
24
19
36
70
68
95
95
95

Precipitation Amount (mm)

0.6
0.6
0.7
0.5
0.4
0.5
0.5
0.6
0.5
0.2
0.3
0
0
0
0
0
0
0
0
0.4
0.3
0.7
1
0.8

Wind Speed/Direction (mph)

14
12
12
12
12
11
10
10
10
12
12
12
13
12
13
14
14
14
14
15
15
16
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
90
90
91
91
90
91
93
90
85
81
78
76
72
67
64
62
62
64
66
72
81
88
90

Pressure (mb)

1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1009
1009
1008
1008
1007
1007
1007
1006

Ozone (du)

428
431
430
424
419
418
415
415
415
408
401
395
393
390
390
386
382
379
377
378
374
371
372
372

Monday 18

Waxing Crescent 12%

06:48

00:15

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:13, Set: 21:12, Transit: 13:12. Moon - Rise: 06:48, Set: 00:15. Civil Dark: 21:56 - 04:29. Nautical Dark: 22:58 - 03:26. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
100
100
98
98
98
98
99
99
99
99
100
92
99
90
97
96
95
98
99
99
99

Low Clouds (% Sky Obscured)

92
94
95
97
98
92
87
83
81
83
84
79
77
69
69
75
72
71
70
70
76
79
84
87

Medium Clouds (% Sky Obscured)

100
100
98
96
78
31
36
17
22
69
71
81
83
59
62
77
47
73
79
86
63
76
70
25

High Clouds (% Sky Obscured)

50
29
53
68
81
58
50
30
40
42
3
24
30
65
24
9
3
40
1
1
0
4
0
0

ISS Passover

Visibility (miles)

9
9
5
3
9
4
0
2
9
8
3
4
4
7
6
7
9
9
9
9
9
5
4
1

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
Very Light Rain
None
None
None
None
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
Very Light Rain
None

Precipitation Probability (%)

95
95
95
95
95
95
67
26
22
37
35
50
64
71
75
80
81
77
79
76
66
63
54
43

Precipitation Amount (mm)

0.9
0.6
1.3
1.5
1.1
0.7
0.3
0
0
0
0
0.2
0.3
0.4
0.5
0.6
0.5
0.5
0.6
0.5
0.3
0.3
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
92
93
96
98
96
96
93
93
96
96
96
93
92
90
89
86
86
86
92
93
95
96

Pressure (mb)

1005
1004
1004
1003
1003
1003
1003
1003
1003
1004
1004
1005
1005
1005
1006
1006
1006
1007
1007
1008
1008
1009
1009
1010

Ozone (du)

377
382
385
389
390
389
388
389
390
391
392
392
392
390
392
395
396
396
395
395
395
398
395
393

Tuesday 19

Waxing Crescent 21%

08:11

01:08

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:12, Set: 21:13, Transit: 13:12. Moon - Rise: 08:11, Set: 01:08. Civil Dark: 21:57 - 04:27. Nautical Dark: N/A - 03:24. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
99
99
100
100
99
99
99
99
99
99
97
94
96
97
99
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

91
96
96
96
97
94
91
89
87
87
86
63
41
19
43
67
91
88
84
79
74
72
73
78

Medium Clouds (% Sky Obscured)

25
27
23
15
42
87
73
65
34
36
36
26
13
0
20
37
55
37
19
12
9
7
8
9

High Clouds (% Sky Obscured)

7
3
7
13
20
5
1
4
1
6
2
16
20
21
48
59
58
69
79
89
83
69
53
37

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

39
34
30
34
33
49
54
44
24
24
32
26
26
22
37
49
60
53
44
20
10
6
4
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
18
19
18
17
17
17
17
18
17
17
16
16
16
15
15
15
15
15
15
15
12
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
12
12
12
12
12
12
13
12
13
13
13
13
12
12
12
12
12
12
12
12

Relative Humidity (%)

96
95
95
96
98
96
98
98
96
95
96
96
96
93
92
90
87
86
86
87
87
89
92
95

Pressure (mb)

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

Ozone (du)

388
384
381
377
370
364
359
358
358
355
351
349
347
349
348
346
344
342
341
340
339
339
339
338

Wednesday 20

Waxing Crescent 31%

09:41

01:42

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:10, Set: 21:14, Transit: 13:12. Moon - Rise: 09:41, Set: 01:42. Civil Dark: 21:59 - 04:26. Nautical Dark: 23:01 - 03:22. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
99
99
100
100
100
100
100
100
100
99
94
89
85
86
89
92
86
83
79
93
97
100
100

Low Clouds (% Sky Obscured)

91
92
87
82
77
78
79
81
78
75
72
69
67
65
62
54
54
60
71
78
81
78
78
63

Medium Clouds (% Sky Obscured)

8
9
7
7
7
8
9
10
15
23
36
39
43
40
55
63
72
46
24
5
22
36
49
51

High Clouds (% Sky Obscured)

40
51
67
84
100
99
98
97
67
40
13
10
6
2
2
2
3
4
6
7
38
68
99
98

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 (%)

8
8
6
7
8
5
7
9
17
18
20
22
19
4
10
13
12
12
12
8
8
6
1
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
6
7
7
7
6
6
7
8
9
10
10
11
11
11
10
10
9
8
6
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
11
11
10
10
9
8
12
12
12
13
13
13
16
16
16
16
16
16
17
17
16

Dew Point (°C)

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

Relative Humidity (%)

93
93
92
93
92
90
90
92
90
90
90
90
89
86
85
83
82
81
81
79
79
78
78
77

Pressure (mb)

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

Ozone (du)

339
340
340
341
341
342
342
343
343
341
340
338
338
338
337
338
339
340
339
338
338
337
336
335

Thursday 21

Waxing Crescent 42%

11:10

02:05

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
17 Bad
18 Bad

Sun - Rise: 05:09, Set: 21:16, Transit: 13:13. Moon - Rise: 11:10, Set: 02:05. Civil Dark: 22:01 - 04:24. Nautical Dark: 23:03 - 03:19. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
99
98
97
83
81
88
94
92
89
82
74
76
76
73
67
77
87
96

Low Clouds (% Sky Obscured)

45
27
21
13
2
8
15
24
18
12
6
12
21
35
46
49
52
63
74
85

Medium Clouds (% Sky Obscured)

53
52
50
51
60
57
53
49
46
48
48
41
47
52
51
40
28
41
48
37

High Clouds (% Sky Obscured)

96
94
73
52
33
50
68
85
92
92
89
65
33
0
2
5
7
15
15
16

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
13
16
12
23
24
23

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)

4
4
4
5
5
6
6
7
8
8
9
10
11
13
15
14
13
13
10
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
84
89
87
87
86
86
84
85
78
74
71
69
67
66
67
67
69
72
76

Pressure (mb)

1023
1023
1023
1023
1022
1022
1021
1021
1021
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018

Ozone (du)

337
338
340
346
352
357
358
359
360
359
358
358
357
356
355
354
354
353
353
353

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

Generated: 15/05/26 23:06:39. Forecast: 15/05/26 to 21/05/26. Timezone: UTC+1.00