Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 29

Waxing Gibbous 98%

20:09

03:50

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

Sun - Rise: 05:01, Set: 21:25, Transit: 13:13. Moon - Rise: 20:09, Set: 03:50. Civil Dark: 22:12 - 04:14. Nautical Dark: 23:22 - 03:02. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

20
35
42
66
100
100
100
96
96
89
98
95
100
100
100
97
99
92
82
100
98
100
100
100

Low Clouds (% Sky Obscured)

20
32
42
66
53
52
70
68
65
65
68
68
67
73
74
54
45
33
49
42
26
44
52
21

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
4
3
0
38
38
43
9
39
74
20
45
92

High Clouds (% Sky Obscured)

20
13
40
66
100
100
100
89
88
71
90
82
100
100
98
90
96
88
60
100
89
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
2
2
1
1
1
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
2
17
27

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
13
11
10
9
9
9
8
8
8
9
11
12
13
14
14
14
15
15
15
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

73
80
86
86
87
87
87
87
85
84
83
81
79
74
69
67
65
63
64
69
72
72
73
77

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019

Ozone (du)

335
333
332
330
330
331
330
330
329
330
330
332
335
337
337
337
337
335
335
339
344
345
345
345

Saturday 30

Waxing Gibbous 100%

21:22

04:17

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

Sun - Rise: 05:00, Set: 21:26, Transit: 13:14. Moon - Rise: 21:22, Set: 04:17. Civil Dark: 22:13 - 04:13. Nautical Dark: 23:25 - 03:00. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

77
86
94
100
95
96
99
77
81
93
97
100
100
90
97
100
99
99
91
64
57
69
57
59

Low Clouds (% Sky Obscured)

61
71
87
100
83
91
97
67
68
63
67
64
65
62
65
63
67
47
58
45
53
61
55
59

Medium Clouds (% Sky Obscured)

29
25
29
50
89
27
21
0
0
26
26
25
25
26
35
68
67
98
60
45
6
22
36
44

High Clouds (% Sky Obscured)

15
20
25
25
1
0
0
0
40
72
85
100
100
53
82
100
48
31
8
2
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
2
1
5
2
1
1
3
7
7
9
9
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
44
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

9
2
1
10
45
68
37
28
27
26
41
34
35
42
42
37
35
29
23
18
6
3
3
1

Precipitation Amount (mm)

0
0
0
0
0
0.7
0
0
0
0
0.4
0.3
0.3
0.3
0.3
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
6
5
7
8
9
11
12
14
12
13
13
14
14
14
13
12
11
11
11
11
12
12
12

Chance of Frost

Temperature (°C)

15
14
13
13
14
13
13
13
13
13
13
13
13
13
13
14
14
14
15
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
86
90
92
89
92
95
95
96
98
100
98
95
96
96
96
95
92
89
87
83
80
82
86

Pressure (mb)

1019
1018
1018
1018
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

346
349
354
356
362
366
362
357
350
349
350
350
351
351
351
351
354
356
359
363
357
348
342
340

Sunday 31

Full Moon 99%

22:28

04:56

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

Sun - Rise: 04:59, Set: 21:28, Transit: 13:14. Moon - Rise: 22:28, Set: 04:56. Civil Dark: 22:15 - 04:11. Nautical Dark: 23:27 - 02:59. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

65
74
72
84
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

65
70
69
74
69
74
79
66
88
98
99
91
100
100
85
91
91
61
73
87
100
99
98
97

Medium Clouds (% Sky Obscured)

50
31
28
25
42
33
51
63
99
82
71
90
52
44
35
35
39
92
100
100
100
100
100
100

High Clouds (% Sky Obscured)

0
1
9
51
91
100
100
100
100
100
100
100
100
60
100
100
99
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
1
1
1
6
6
8
6
4
40
27
34
39
58
52
95
95
95
82
93
95
95
95
67

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0
0
0
0.4
0
1.2
1.4
1.1
0.5
0.7
0.8
1.1
1
0.2

Wind Speed/Direction (mph)

10
10
8
9
9
8
8
8
7
7
7
8
10
15
12
12
14
14
12
10
9
9
8
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
96
95
95
93
95
95
96
95
95
93
92
93
96
96
93
96
96
92
96
96
96
96

Pressure (mb)

1017
1017
1017
1017
1016
1016
1016
1015
1015
1014
1014
1013
1012
1012
1011
1011
1010
1010
1009
1008
1008
1007
1006
1005

Ozone (du)

338
339
339
336
335
336
335
334
334
333
333
331
330
331
330
333
335
337
338
339
344
346
349
351

Monday 1

Waning Gibbous 97%

23:23

05:47

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

Sun - Rise: 04:58, Set: 21:29, Transit: 13:14. Moon - Rise: 23:23, Set: 05:47. Civil Dark: 22:16 - 04:10. Nautical Dark: 23:29 - 02:57. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
100
100
99
99
99
99
100
100
100
100
100
100
99
99
99
99
99
98
96
94
94
93
94

Low Clouds (% Sky Obscured)

97
97
97
92
89
86
90
95
100
92
85
77
78
80
81
87
93
99
88
77
67
64
61
59

Medium Clouds (% Sky Obscured)

100
95
100
59
31
20
32
38
45
60
69
70
65
52
40
45
60
69
46
31
15
13
14
14

High Clouds (% Sky Obscured)

100
100
100
50
47
2
0
0
0
15
30
40
28
19
4
34
4
0
0
1
2
1
2
65

ISS Passover

Visibility (miles)

9
9
5
5
7
0
0
0
2
9
9
9
9
2
0
0
0
0
0
1
7
7
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
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

63
79
95
84
76
58
44
31
44
57
80
95
95
92
95
77
54
56
37
25
24
16
11
14

Precipitation Amount (mm)

0.3
0.5
0.8
0.5
0.5
0
0
0
0
0.2
0.6
1.5
1.1
0.8
1.2
0.5
0
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
8
10
11
11
10
10
10
10
11
9
8
8
9
9
10
12
14
15
14
13
12
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
95
95
98
98
100
98
98
95
96
96
95
98
100
98
100
98
96
96
93
92
89
84

Pressure (mb)

1005
1005
1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1004
1004
1004
1005
1005
1006
1006
1006
1007
1007

Ozone (du)

358
364
370
377
379
381
384
386
389
391
393
393
392
388
389
390
389
384
381
377
376
373
366
360

Tuesday 2

Waning Gibbous 93%

00:05

06:50

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

Sun - Rise: 04:57, Set: 21:30, Transit: 13:14. Moon - Rise: 00:05, Set: 06:50. Civil Dark: 22:17 - 04:10. Nautical Dark: 23:31 - 02:55. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

96
96
97
87
53
72
97
97
98
98
98
99
95
94
91
84
76
66
68
64
66
66
67
68

Low Clouds (% Sky Obscured)

68
69
71
66
53
56
55
65
64
66
69
72
95
94
91
84
76
66
68
64
66
66
67
68

Medium Clouds (% Sky Obscured)

12
10
10
16
18
21
28
67
68
31
23
33
66
43
21
15
8
1
8
15
11
13
19
29

High Clouds (% Sky Obscured)

65
3
0
0
1
8
10
10
4
15
29
41
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

16
25
22
19
29
37
21
29
52
44
58
45
47
51
59
60
61
61
48
44
37
61
86
95

Precipitation Amount (mm)

0
0
0
0
0
0.3
0
0
0.4
0
0.3
0.3
0
0.2
0.3
0.3
0.3
0.3
0
0
0
0.3
0.5
0.8

Wind Speed/Direction (mph)

11
11
11
11
10
10
9
9
9
10
10
11
12
16
15
15
15
17
18
19
20
21
20
21

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

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

Pressure (mb)

1007
1007
1007
1007
1007
1007
1007
1006
1006
1005
1004
1004
1004
1002
1002
1002
1001
1001
1001
1000
1000
999
998
998

Ozone (du)

359
355
352
351
349
349
348
347
345
347
347
351
365
374
382
391
394
396
399
398
397
397
396
396

Wednesday 3

Waning Gibbous 88%

00:35

08:02

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

Sun - Rise: 04:57, Set: 21:31, Transit: 13:14. Moon - Rise: 00:35, Set: 08:02. Civil Dark: 22:19 - 04:09. Nautical Dark: 23:33 - 02:53. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

74
80
87
90
93
96
97
97
98
99
100
100
100
100
100
100
100
100
94
88
82
76
70
64

Low Clouds (% Sky Obscured)

74
80
83
85
86
87
90
94
96
98
98
98
97
95
90
89
86
84
81
80
77
60
44
28

Medium Clouds (% Sky Obscured)

35
41
38
53
64
74
70
72
75
85
94
100
100
100
100
99
99
99
83
67
50
48
46
45

High Clouds (% Sky Obscured)

0
0
0
1
1
2
4
6
13
12
8
0
25
50
75
75
75
75
44
24
10
9
5
0

ISS Passover

Visibility (miles)

5
6
7
9
7
6
4
4
5
5
6
6
7
6
6
5
5
5
4
5
5
6
6
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
Very Light Rain
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
Light Rain
Very Light Rain

Precipitation Probability (%)

95
95
82
67
63
69
71
75
77
72
69
85
78
80
90
90
95
95
95
95
95
93
74
58

Precipitation Amount (mm)

0.7
0.6
0.5
0.3
0.3
0.4
0.4
0.5
0.5
0.4
0.4
0.8
0.5
0.6
0.8
0.6
0.7
1
0.9
1.1
1.5
0.9
0.5
0.3

Wind Speed/Direction (mph)

22
21
21
22
22
22
22
22
23
23
23
23
22
21
21
20
20
20
20
19
18
18
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
11
11
10
10
10
10
10
10
10
10
10
11
11
12
12
12
12
11
11
10

Relative Humidity (%)

92
92
93
93
92
92
89
90
91
91
93
91
90
90
90
90
90
90
89
89
87
86
86
84

Pressure (mb)

997
997
996
996
996
996
995
995
995
995
995
995
995
995
995
995
995
995
996
996
996
996
997
997

Ozone (du)

396
399
402
405
409
413
417
416
415
414
412
409
407
405
403
401
402
403
405
405
406
406
407
408

Thursday 4

Waning Gibbous 80%

00:57

09:17

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
11 Bad
12 Bad

Sun - Rise: 04:56, Set: 21:32, Transit: 13:14. Moon - Rise: 00:57, Set: 09:17. Civil Dark: 22:20 - 04:08. Nautical Dark: 23:35 - 02:52. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

49
35
20
30
43
56
60
59
58
62
73
78
75
71
66
66
57
47

Low Clouds (% Sky Obscured)

27
26
20
30
43
54
57
57
55
58
62
66
62
60
59
52
46
39

Medium Clouds (% Sky Obscured)

39
34
20
30
33
35
40
40
41
35
35
34
33
31
36
31
27
19

High Clouds (% Sky Obscured)

27
35
20
30
43
56
60
57
45
29
15
1
6
11
18
28
39
46

ISS Passover

Visibility (miles)

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

Fog (%)

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

Precipitation Probability (%)

45
39
42
53
64
72
60
54
54
51
48
47
48
49
70
64
64
69

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

18
16
16
15
13
13
12
12
13
13
12
11
10
11
12
13
13
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
10
10
9
9
9
10
10
10
9
9
9
9

Relative Humidity (%)

84
84
84
83
83
84
84
86
86
88
88
88
90
87
83
79
76
72

Pressure (mb)

997
998
998
999
999
999
1000
1000
1000
1001
1001
1001
1002
1003
1003
1004
1005
1005

Ozone (du)

410
411
412
414
413
412
411
411
410
410
410
411
411
411
411
411
412
412

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

Generated: 29/05/26 18:17:52. Forecast: 29/05/26 to 04/06/26. Timezone: UTC+1.00