Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 6

Waning Gibbous 77%

01:40

08:17

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

Sun - Rise: 06:33, Set: 19:56, Transit: 13:16. Moon - Rise: 01:40, Set: 08:17. Civil Dark: 20:31 - 05:58. Nautical Dark: 21:13 - 05:16. Astro Dark: 22:00 - 04:29

Total Clouds (% Sky Obscured)

65
59
46
44
39
45
42
14
29
1
0
0
0
0
0
0
13
0
0
0
69
96
100
82

Low Clouds (% Sky Obscured)

20
16
12
37
33
17
27
4
29
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

14
4
2
2
2
28
1
2
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

47
46
46
44
37
8
25
14
4
1
0
0
0
0
0
0
8
0
0
0
69
32
100
82

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
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)

11
13
13
15
15
15
15
13
10
7
6
6
5
5
5
5
5
5
6
6
6
6
8
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
61
66
65
65
65
70
75
81
91
91
93
93
91
91
91
89
89
91
91
89
87
77
71

Pressure (mb)

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

Ozone (du)

365
366
365
364
364
365
364
360
355
353
352
352
352
353
355
355
353
351
351
348
347
347
346
347

Tuesday 7

Waning Gibbous 69%

02:39

09:04

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

Sun - Rise: 06:31, Set: 19:58, Transit: 13:15. Moon - Rise: 02:39, Set: 09:04. Civil Dark: 20:33 - 05:56. Nautical Dark: 21:15 - 05:13. Astro Dark: 22:02 - 04:26

Total Clouds (% Sky Obscured)

99
88
75
45
90
2
8
91
100
99
79
5
8
16
17
31
38
71
70
82
56
37
33
93

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
35
42
43
42
37
0
0
3

Medium Clouds (% Sky Obscured)

3
43
7
7
0
0
5
54
43
61
46
5
3
5
0
0
2
23
23
8
20
25
23
11

High Clouds (% Sky Obscured)

99
50
42
45
90
2
1
86
100
91
34
5
8
16
17
30
10
22
21
56
14
13
20
86

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 (%)

4
9
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)

13
14
15
15
16
17
16
15
12
9
7
6
4
4
3
3
3
3
2
2
2
2
2
2

Chance of Frost

Temperature (°C)

13
14
15
16
17
17
17
17
16
14
13
12
11
11
10
9
9
8
8
8
8
9
12
14

Feels Like (°C)

8
10
11
12
12
12
13
14
13
11
11
11
9
9
8
7
7
8
7
7
8
10
12
15

Dew Point (°C)

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

Relative Humidity (%)

66
64
61
62
65
70
71
71
74
79
86
90
88
90
90
90
90
91
91
90
91
88
83
79

Pressure (mb)

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

Ozone (du)

346
346
346
345
345
345
344
344
344
345
345
346
347
346
345
344
344
345
345
346
348
349
350
351

Wednesday 8

Waning Gibbous 59%

03:26

10:03

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

Sun - Rise: 06:29, Set: 19:59, Transit: 13:15. Moon - Rise: 03:26, Set: 10:03. Civil Dark: 20:34 - 05:54. Nautical Dark: 21:17 - 05:10. Astro Dark: 22:04 - 04:23

Total Clouds (% Sky Obscured)

89
56
41
43
34
49
46
47
45
41
34
60
79
93
96
99
99
83
83
100
94
89
81
81

Low Clouds (% Sky Obscured)

80
54
39
40
34
46
46
47
40
41
34
60
58
56
23
0
0
0
53
95
82
71
54
54

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
45
45
50
33
10
79
68
59
55
52

High Clouds (% Sky Obscured)

75
33
34
22
9
27
25
35
35
21
13
60
74
91
94
99
99
30
46
100
80
60
40
40

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
23
59
84
84
84
84
84
84
84
84
84
84

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
1
2
1
1
0
0
0
0
0
0
0
0
0
0
2
4
5
9
6
9

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

Chance of Frost

Temperature (°C)

16
17
18
18
18
18
17
16
15
13
12
12
11
10
10
9
9
9
8
8
8
9
10
10

Feels Like (°C)

15
16
17
17
18
17
17
17
16
15
13
13
12
10
9
8
8
7
6
6
7
7
7
8

Dew Point (°C)

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

Relative Humidity (%)

72
70
67
65
64
65
68
75
82
89
90
95
95
93
91
93
95
95
95
96
96
95
82
71

Pressure (mb)

1023
1023
1023
1023
1023
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1022
1022

Ozone (du)

350
350
351
352
352
352
353
354
358
359
359
357
354
354
354
353
352
352
352
352
352
353
354
355

Thursday 9

Waning Gibbous 49%

04:00

No Set

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: 06:26, Set: 20:01, Transit: 13:15. Moon - Rise: 04:00, Set: No Set. Civil Dark: 20:36 - 05:51. Nautical Dark: 21:19 - 05:08. Astro Dark: 22:07 - 04:20

Total Clouds (% Sky Obscured)

81
83
79
78
76
77
87
93
93
91
94
94
97
99
99
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

52
55
56
53
46
40
36
30
33
38
40
47
55
62
47
31
17
14
11
8
25
42
59
64

Medium Clouds (% Sky Obscured)

50
45
45
50
50
34
4
0
0
0
1
11
28
50
70
84
100
99
98
91
96
99
100
95

High Clouds (% Sky Obscured)

35
35
15
15
20
20
25
20
15
25
40
60
73
91
94
97
100
100
100
100
100
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 (%)

84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84

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 (%)

6
3
20
30
44
39
28
2
3
1
0
0
0
0
0
0
0
0
0
0
9
17
24
37

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)

13
14
15
17
17
17
16
16
13
10
7
5
4
4
4
4
4
4
4
3
3
4
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
77
77
80
81
76
76
79
79
85
85
86
85
83
83
82
85
86
88
89
89
88
85
84

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1024
1024
1025
1025
1026
1026
1026
1025
1025
1025
1024
1024
1023
1023
1022
1022
1022

Ozone (du)

356
354
353
353
350
349
348
347
345
345
346
346
345
344
343
342
341
339
337
337
336
336
335
335

Friday 10

Third Quarter 39%

04:25

11:13

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: 06:24, Set: 20:03, Transit: 13:15. Moon - Rise: 04:25, Set: 11:13. Civil Dark: 20:38 - 05:49. Nautical Dark: 21:21 - 05:05. Astro Dark: 22:09 - 04:17

Total Clouds (% Sky Obscured)

100
100
100
100
97
76
65
70
93
100
100
100
99
100
100
100
100
100
100
100
100
100
99
99

Low Clouds (% Sky Obscured)

68
70
80
87
92
76
65
61
57
51
43
41
34
29
32
35
37
39
40
41
49
56
64
76

Medium Clouds (% Sky Obscured)

41
37
45
47
50
57
60
60
63
62
62
69
71
69
77
89
100
98
96
94
92
90
89
91

High Clouds (% Sky Obscured)

100
100
86
73
54
50
65
70
85
85
80
96
93
100
100
100
100
100
100
100
90
64
34
48

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 (%)

84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84

Precipitation Type

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

Precipitation Probability (%)

45
51
46
38
30
24
16
12
10
14
2
3
3
1
8
10
9
12
13
11
11
12
1
18

Precipitation Amount (mm)

0
0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
7
7
7
7
7
8
9
9
8
8
8
8
8
8
8
8
8
8
8
7
7
7

Relative Humidity (%)

78
72
69
69
67
69
73
79
87
91
91
95
96
96
96
96
96
96
96
96
96
90
84
78

Pressure (mb)

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

Ozone (du)

335
335
336
336
336
338
340
342
345
347
349
352
354
354
356
357
358
359
358
357
357
357
358
358

Saturday 11

Waning Crescent 30%

04:44

12:30

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: 06:22, Set: 20:05, Transit: 13:14. Moon - Rise: 04:44, Set: 12:30. Civil Dark: 20:40 - 05:46. Nautical Dark: 21:23 - 05:03. Astro Dark: 22:12 - 04:14

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
93
81
72
72
72
71
72
75
76
71
68
66
71
78
83
85

Low Clouds (% Sky Obscured)

88
100
100
100
100
83
66
49
43
38
32
40
47
56
61
65
68
66
64
62
63
64
66
73

Medium Clouds (% Sky Obscured)

93
95
89
82
77
75
72
72
71
65
55
55
45
40
37
39
36
44
56
65
69
72
72
66

High Clouds (% Sky Obscured)

65
84
89
95
100
70
40
10
7
14
16
9
7
5
5
5
5
10
15
25
30
30
30
19

ISS Passover

Visibility (miles)

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

Fog (%)

84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84

Precipitation Type

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

Precipitation Probability (%)

34
47
55
61
54
55
53
51
47
47
47
40
34
28
23
21
21
19
15
5
17
22
24
40

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
11
12
12
11
11
11
11
11
9
8
6
6
6
5
6
7
8
8
9
9
12
15
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
5
5
5
5
5
6
6
6
6
5
5
5
5
4
4
4
4
4
3
4
4
4

Relative Humidity (%)

74
72
68
71
73
75
81
85
91
93
94
96
96
96
96
96
96
96
96
94
93
90
85
82

Pressure (mb)

1007
1007
1006
1006
1006
1006
1007
1007
1007
1008
1009
1010
1010
1009
1009
1010
1010
1010
1011
1011
1011
1011
1011
1012

Ozone (du)

356
354
352
352
353
353
356
359
362
362
362
361
362
363
365
362
359
356
356
357
357
360
362
365

Sunday 12

Waning Crescent 20%

04:59

13:48

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

Sun - Rise: 06:20, Set: 20:06, Transit: 13:14. Moon - Rise: 04:59, Set: 13:48. Civil Dark: 20:42 - 05:44. Nautical Dark: 21:26 - 05:00. Astro Dark: 22:15 - 04:10

Total Clouds (% Sky Obscured)

88
92
84
75
61
53
44
35
30
25
20
36
49
59
64
70
76
82
88
94

Low Clouds (% Sky Obscured)

80
87
76
65
58
53
44
35
30
25
20
36
47
52
56
60
64
71
79
86

Medium Clouds (% Sky Obscured)

60
53
46
42
43
44
44
35
30
25
20
36
49
51
46
53
57
75
82
87

High Clouds (% Sky Obscured)

9
4
0
0
4
9
9
15
20
20
20
15
15
10
10
10
14
17
20
26

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
6
4
4
4

Fog (%)

84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84
84

Precipitation Type

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

Precipitation Probability (%)

42
27
27
22
13
17
18
15
49
49
33
55
59
57
59
70
89
94
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.7
0.8
0.8
1

Wind Speed/Direction (mph)

17
17
16
15
14
14
13
11
10
7
6
5
5
5
5
5
5
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
4
5
5
4
5
4
5
3
3
3
3
3
3
0
0
-0
0
1

Dew Point (°C)

4
4
4
4
5
5
5
5
4
4
3
2
2
2
2
2
2
3
3
3

Relative Humidity (%)

79
77
73
75
77
78
79
82
82
83
85
86
86
88
91
91
91
94
93
94

Pressure (mb)

1012
1012
1012
1013
1013
1014
1014
1015
1015
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

365
365
366
366
366
367
367
367
367
368
369
370
371
372
373
373
374
374
374
374

Forecast for Aber-Brân, Powys, United Kingdom (51.93,-3.48)

Generated: 06/04/26 11:10:24. Forecast: 06/04/26 to 12/04/26. Timezone: UTC+1.00