Clear Outside v1.0 - International Weather Forecasts For Astronomers

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)

99
95
80
60
100
100
98
100
97
87
85
84
69
47
63
66
100
92
100
99
100
100
86
100

Low Clouds (% Sky Obscured)

49
55
50
39
49
59
66
59
77
65
62
51
53
47
48
56
59
56
58
77
75
80
78
85

Medium Clouds (% Sky Obscured)

19
27
27
28
62
94
84
99
49
56
78
84
64
18
45
37
100
84
100
55
100
100
44
100

High Clouds (% Sky Obscured)

45
7
3
4
100
100
85
100
77
50
45
39
0
0
1
28
60
50
100
78
100
100
57
29

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

43
39
0
32
39
34
33
39
49
54
56
48
42
29
47
71
82
88
82
87
89
85
93
95

Precipitation Amount (mm)

0.2
0.3
0.2
0.2
0.3
0.2
0.2
0.2
0.3
0.4
0.4
0.3
0.3
0
0
0.3
0.5
0.7
0.5
0.6
0.9
0.8
1
1.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
87
88
88
88
88
87
85
85
78
78
77
76
71
70
75
78
88
88
87
87
90
91

Pressure (mb)

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

Ozone (du)

404
405
409
410
411
413
415
418
422
426
430
432
435
436
435
435
437
438
436
435
433
434
437
436

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)

100
100
100
97
100
84
76
76
74
64
93
91
100
99
99
99
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

83
92
88
78
70
63
66
67
62
58
69
75
57
82
94
81
80
69
77
80
87
95
85
100

Medium Clouds (% Sky Obscured)

100
100
80
43
39
33
3
5
23
2
53
55
50
48
92
98
97
91
99
93
100
100
100
100

High Clouds (% Sky Obscured)

15
0
0
0
0
0
0
0
0
0
64
52
75
69
61
75
86
100
100
100
100
100
91
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

95
95
95
77
76
63
37
27
27
22
30
33
42
36
39
38
28
32
36
43
63
77
89
95

Precipitation Amount (mm)

1.2
1.3
0.9
0.5
0.7
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
0.7

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
93
93
87
90
88
91
90
87
82
80
76
73
68
66
65
65
65
69
73
79
81
87
87

Pressure (mb)

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

Ozone (du)

429
420
416
421
422
421
421
418
410
406
401
400
398
394
392
388
388
386
380
378
378
378
377
378

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
96
97
100
90
100
100
99
99
95
90
66
42
13
39
70
100
100
100
100
100

Low Clouds (% Sky Obscured)

89
100
100
100
92
71
78
64
75
94
76
68
54
62
63
42
13
39
70
88
83
79
72
73

Medium Clouds (% Sky Obscured)

100
97
82
78
82
60
40
23
70
65
54
52
55
47
26
31
13
39
70
57
78
39
76
74

High Clouds (% Sky Obscured)

100
45
50
60
33
39
55
6
5
23
3
3
37
40
24
19
4
39
65
79
64
30
10
10

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

95
95
95
75
95
95
66
45
38
69
81
82
75
71
64
33
36
42
54
61
50
55
74
64

Precipitation Amount (mm)

1.9
1.4
0.6
0
0.6
1
0.3
0.2
0
0.4
0.4
0.6
0.4
0.5
0.4
0
0
0
0.2
0.3
0.2
0.3
0.4
0.2

Wind Speed/Direction (mph)

13
15
18
20
17
15
12
12
14
14
16
16
17
17
18
18
18
19
20
20
20
20
20
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
90
88
90
92
95
98
92
89
92
92
92
92
92
86
80
80
79
87
92
92
92
93

Pressure (mb)

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

Ozone (du)

380
380
385
393
391
392
390
390
392
392
394
397
396
395
395
398
401
398
398
393
390
384
382
379

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 OK
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
97
96
95
96
98
99
99
99
98
99
99
100
99
98
97
91
97
55
27
49
46
95

Low Clouds (% Sky Obscured)

76
78
75
72
71
70
74
77
77
79
81
82
85
87
84
80
76
76
86
55
27
49
46
67

Medium Clouds (% Sky Obscured)

68
80
84
80
75
74
78
80
77
71
69
52
75
82
66
41
19
20
34
44
27
22
7
11

High Clouds (% Sky Obscured)

5
5
5
10
20
25
25
30
40
32
26
55
55
60
60
60
60
47
57
28
23
14
8
61

ISS Passover

Visibility (miles)

4
3
4
2
2
1
1
1
0
1
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
Very Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

63
69
75
63
79
59
52
90
95
64
47
36
35
24
21
21
12
15
8
12
7
11
14
10

Precipitation Amount (mm)

0.2
0.3
0.5
0.3
0.7
0.3
0
0.8
1
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
12
12
12
12
12
12
11
12
12
11
11
12
12
12
12
12
11
12
12
11

Relative Humidity (%)

96
96
95
96
95
98
95
96
98
96
93
93
93
89
87
87
87
84
83
86
84
90
93
95

Pressure (mb)

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

Ozone (du)

374
372
367
365
364
359
358
360
359
360
360
359
360
359
357
357
357
358
358
357
355
354
353
354

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)

44
88
99
100
100
100
100
100
100
100
100
100
100
100
100
99
99
95
92
88
79
69
59
72

Low Clouds (% Sky Obscured)

44
64
94
97
100
100
100
100
100
100
100
96
93
89
80
72
63
68
71
76
58
39
22
17

Medium Clouds (% Sky Obscured)

15
60
22
49
27
43
76
46
75
56
62
87
57
53
50
43
41
31
20
17
23
31
41
52

High Clouds (% Sky Obscured)

7
38
12
61
55
57
64
86
81
78
76
77
74
79
56
34
8
9
11
12
22
26
28
47

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

8
12
10
20
34
47
55
68
61
53
65
34
25
36
39
30
16
14
15
17
12
9
2
1

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.5
0.3
0
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
95
92
93
95
95
95
93
92
93
95
96
93
95
95
92
92
92
92
90
90
90
92

Pressure (mb)

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

Ozone (du)

353
352
350
347
346
345
344
344
343
340
340
338
342
344
346
346
346
346
345
344
343
344
344
345

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 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 05:09, 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)

86
99
94
94
97
100
100
95
95
81
62
42
45
58
65
78
91
80
76
70
91
95
98
99

Low Clouds (% Sky Obscured)

8
0
13
27
40
27
13
4
6
6
3
10
18
26
24
23
24
20
21
24
28
25
25
30

Medium Clouds (% Sky Obscured)

63
74
77
82
87
78
70
61
39
18
2
4
7
9
28
46
64
52
43
37
48
52
56
57

High Clouds (% Sky Obscured)

73
99
68
39
5
5
10
10
20
20
20
17
19
17
37
57
77
60
46
32
37
38
33
56

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
3
3
3
3
3
3

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
3
2
0
6
12
18
15
10
0
0
0
0
2
4
0
1
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
4
5
5
5
5
6
6
6
7
8
9
9
10
11
10
10
9
8
7
6
5
3
3

Chance of Frost

Temperature (°C)

15
15
15
15
15
15
16
16
16
18
19
20
20
21
21
22
22
22
21
21
21
20
19
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
90
89
89
87
87
87
87
87
82
76
71
72
75
76
77
80
81
84
86
89
92
95
98

Pressure (mb)

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

Ozone (du)

345
345
345
346
346
347
349
351
352
352
351
350
350
350
351
350
350
349
351
352
354
354
355
355

Friday 22

Waxing Crescent 54%

12:34

02:20

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 OK

Sun - Rise: 05:08, Set: 21:17, Transit: 13:13. Moon - Rise: 12:34, Set: 02:20. Civil Dark: 22:02 - 04:23. Nautical Dark: 23:06 - 03:17. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
100
93
87
80
72
61
42
59
77
92
89
86
89
90
92
95
71
47
22

Low Clouds (% Sky Obscured)

35
37
35
34
38
42
46
42
49
50
51
42
34
31
25
21
19
13
6
0

Medium Clouds (% Sky Obscured)

59
56
44
28
24
22
11
0
0
0
0
0
0
0
0
0
0
1
2
2

High Clouds (% Sky Obscured)

78
100
93
87
80
72
53
32
53
71
90
89
86
89
90
90
90
59
37
16

ISS Passover

Visibility (miles)

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

3
4
4
5
6
6
6
7
7
8
9
10
10
10
11
11
11
11
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
19
18
17
17
18
17
17
17
19
19
19
19
19
19
22
22
22
21
22

Dew Point (°C)

17
17
16
16
17
16
16
16
17
17
17
17
17
17
17
17
17
17
17
17

Relative Humidity (%)

96
98
98
98
98
98
96
95
93
90
89
88
84
81
79
79
79
77
77
79

Pressure (mb)

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

Ozone (du)

355
355
356
360
364
368
369
371
373
368
364
359
354
349
345
342
340
338
336
334

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

Generated: 16/05/26 23:49:11. Forecast: 16/05/26 to 22/05/26. Timezone: UTC+1.00