Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 1

Waxing Gibbous 100%

19:32

06:26

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 OK
23 OK
00 Good
01 OK
02 OK
03 Bad
04 Bad
05 OK

Sun - Rise: 06:49, Set: 19:50, Transit: 13:20. Moon - Rise: 19:32, Set: 06:26. Civil Dark: 20:25 - 06:14. Nautical Dark: 21:07 - 05:29. Astro Dark: 21:52 - 04:44

Total Clouds (% Sky Obscured)

99
97
97
93
100
100
100
99
100
100
100
99
95
55
65
69
33
25
0
17
38
39
42
45

Low Clouds (% Sky Obscured)

87
87
91
83
85
84
64
64
74
100
100
99
85
11
31
38
33
25
0
17
38
39
42
45

Medium Clouds (% Sky Obscured)

3
0
0
0
47
45
34
6
55
97
32
26
22
4
3
3
0
0
0
0
0
0
3
3

High Clouds (% Sky Obscured)

2
6
8
12
54
98
87
55
81
48
98
40
22
4
21
40
2
0
0
0
0
2
1
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
1
0
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
1

Precipitation Type

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

Precipitation Probability (%)

0
0
0
15
2
2
2
1
0
2
37
53
59
53
7
14
0
3
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
84
85
82
80
78
77
74
72
77
80
85
93
96
98
91
93
91
91
90
89
89
88
86

Pressure (mb)

1027
1027
1027
1026
1026
1026
1025
1025
1024
1024
1023
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

328
332
330
328
328
329
328
328
326
325
327
327
330
335
341
352
361
363
367
369
372
373
375
379

Thursday 2

Full Moon 99%

20:48

06:36

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:46, Set: 19:52, Transit: 13:19. Moon - Rise: 20:48, Set: 06:36. Civil Dark: 20:27 - 06:12. Nautical Dark: 21:09 - 05:27. Astro Dark: 21:55 - 04:41

Total Clouds (% Sky Obscured)

74
86
86
89
98
83
84
89
92
95
100
100
100
100
100
100
100
97
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
86
86
57
61
71
66
46
44
42
38
46
79
62
47
88
92
92
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

9
15
9
23
21
36
60
84
87
89
98
83
67
73
74
85
55
48
48
77
84
87
82
84

High Clouds (% Sky Obscured)

2
1
1
30
89
9
23
46
58
48
100
98
100
100
100
100
77
63
100
100
88
61
83
92

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
5
3
5
9
9
6
7
0
0
0

Fog (%)

12
30
37
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
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
3
31
57
70
73
71
71
85
80
67
79
73
46

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.5
0.4
0.3
0.5
0.4
0
0.5
0.4
0

Wind Speed/Direction (mph)

3
3
2
2
4
6
8
9
9
9
9
10
10
12
13
13
14
16
17
19
21
20
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
3
4
5
4
4
6
5
4
5
4
3
3
3
2
2
2
2
2
3
3
3
4
5

Dew Point (°C)

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

Relative Humidity (%)

86
86
85
79
75
71
69
68
70
71
69
68
71
77
87
94
93
91
91
95
96
98
98
98

Pressure (mb)

1023
1023
1024
1024
1023
1023
1023
1022
1022
1021
1020
1020
1019
1018
1018
1017
1016
1015
1013
1012
1011
1010
1009
1008

Ozone (du)

380
378
378
378
379
379
379
380
379
380
379
379
382
383
380
380
381
380
380
380
382
381
381
379

Friday 3

Waning Gibbous 96%

22:05

06:47

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:44, Set: 19:54, Transit: 13:19. Moon - Rise: 22:05, Set: 06:47. Civil Dark: 20:29 - 06:09. Nautical Dark: 21:11 - 05:24. Astro Dark: 21:57 - 04:38

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
92
99
96
98
99
71
85
98
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
96
91
91
93
90
88
77
78
77
81
92
88
45
29
43
8
14
68
79
89
100
99
97

Medium Clouds (% Sky Obscured)

97
100
98
82
68
68
68
93
100
99
74
42
6
12
84
88
56
47
41
92
71
94
71
41

High Clouds (% Sky Obscured)

89
100
100
100
100
90
73
83
86
57
49
53
43
59
55
58
22
4
5
12
7
4
24
50

ISS Passover

Visibility (miles)

0
0
0
0
0
1
1
1
1
1
3
0
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
Light Rain
Very Light Rain
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

66
76
69
36
17
46
32
32
31
26
37
36
18
3
1
9
0
0
3
11
23
25
32
36

Precipitation Amount (mm)

0
0.4
0.3
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
20
22
23
21
21
20
21
22
22
23
22
20
19
15
12
10
10
8
6
4
3
4
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
5
4
5
5
4
4
5
4
5
4
5
5
5
4
5
5
5
5
5
5
5
5

Dew Point (°C)

10
10
10
10
10
10
10
10
10
10
10
10
8
7
6
6
6
6
6
6
5
5
6
6

Relative Humidity (%)

100
98
98
100
98
96
98
96
96
96
96
98
84
85
85
85
85
88
88
87
85
87
87
87

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1010
1010
1011
1012
1013
1014
1014
1015
1015
1015
1015
1014
1014

Ozone (du)

378
378
380
382
384
385
385
385
387
387
385
383
383
382
380
377
375
372
371
372
371
370
369
369

Saturday 4

Waning Gibbous 91%

23:22

07:01

06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 OK
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

Sun - Rise: 06:42, Set: 19:56, Transit: 13:19. Moon - Rise: 23:22, Set: 07:01. Civil Dark: 20:31 - 06:07. Nautical Dark: 21:13 - 05:22. Astro Dark: 22:00 - 04:35

Total Clouds (% Sky Obscured)

100
100
100
55
59
14
99
99
99
67
70
100
100
100
100
100
99
99
98
98
98
36
34
29

Low Clouds (% Sky Obscured)

96
97
99
55
59
14
43
52
59
67
70
90
89
92
95
98
94
90
68
85
85
36
34
29

Medium Clouds (% Sky Obscured)

69
41
47
52
39
14
53
43
36
5
26
52
92
100
100
99
89
74
27
61
34
27
15
8

High Clouds (% Sky Obscured)

75
79
83
55
59
14
79
68
57
28
40
46
97
85
73
61
17
47
37
31
26
9
15
19

ISS Passover

Visibility (miles)

9
7
6
9
9
9
9
9
9
9
9
9
9
9
9
2
1
9
5
7
7
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

30
23
24
28
21
16
18
12
11
20
14
17
17
39
95
95
95
95
88
72
52
61
50
41

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
1.3
0.7
0.6
0.7
0.4
0.2
0.4
0.2
0

Wind Speed/Direction (mph)

9
14
15
17
19
21
23
25
26
26
27
27
27
28
28
29
29
26
25
22
22
21
20
19

Chance of Frost

Temperature (°C)

8
9
10
11
11
12
13
13
13
13
13
12
11
11
11
11
10
10
9
7
7
7
6
5

Feels Like (°C)

6
6
7
6
7
7
7
6
6
6
6
4
3
3
2
2
2
2
0
1
2
1
2
2

Dew Point (°C)

7
8
10
9
9
9
8
8
9
9
9
9
8
8
9
10
9
7
6
6
6
4
3
2

Relative Humidity (%)

91
93
96
90
87
81
75
72
75
77
79
81
83
85
85
93
95
85
82
90
90
79
81
80

Pressure (mb)

1013
1012
1012
1012
1011
1011
1010
1009
1008
1007
1006
1005
1004
1003
1002
1001
1001
1002
1003
1003
1005
1007
1008
1010

Ozone (du)

369
369
368
367
368
370
370
372
375
372
371
372
372
372
379
380
382
384
391
391
391
389
390
391

Sunday 5

Waning Gibbous 85%

00:37

07:18

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

Sun - Rise: 06:39, Set: 19:57, Transit: 13:18. Moon - Rise: 00:37, Set: 07:18. Civil Dark: 20:32 - 06:04. Nautical Dark: 21:15 - 05:19. Astro Dark: 22:02 - 04:32

Total Clouds (% Sky Obscured)

24
16
88
94
86
83
41
45
60
33
21
20
16
51
60
59
68
78
92
96
99
100
100
100

Low Clouds (% Sky Obscured)

24
16
55
51
52
56
41
45
53
33
21
20
7
12
23
33
37
43
49
47
43
41
42
48

Medium Clouds (% Sky Obscured)

0
0
0
0
6
14
24
22
16
9
12
15
16
7
5
2
15
27
37
55
70
88
64
40

High Clouds (% Sky Obscured)

18
14
10
6
6
3
3
2
4
1
1
1
2
25
34
41
50
57
62
60
60
61
77
90

ISS Passover

Visibility (miles)

9
9
9
7
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

26
16
24
25
24
17
23
17
15
30
12
15
21
10
6
4
2
2
4
3
3
0
8
14

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
18
18
19
18
18
19
19
19
18
16
15
13
11
9
7
7
8
9
10
11
11
11
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
3
2
2
2
3
4
3
4
5
5
6
6
5
5
5
5
5
5
2
1
1
1

Dew Point (°C)

2
2
3
3
4
4
4
4
4
3
3
2
2
3
3
3
3
3
3
2
2
2
1
1

Relative Humidity (%)

79
79
76
77
81
81
77
75
77
73
68
64
64
71
74
78
80
82
82
82
82
82
80
78

Pressure (mb)

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

Ozone (du)

391
390
391
391
391
390
391
393
395
399
396
395
392
387
386
384
383
381
379
377
376
375
373
372

Monday 6

Waning Gibbous 77%

01:46

07:42

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
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:37, Set: 19:59, Transit: 13:18. Moon - Rise: 01:46, Set: 07:42. Civil Dark: 20:34 - 06:00. Nautical Dark: 21:17 - 05:16. Astro Dark: 22:04 - 04:29

Total Clouds (% Sky Obscured)

100
99
99
98
93
89
84
88
92
95
79
60
42
32
17
7
21
40
60
73
87
100
100
100

Low Clouds (% Sky Obscured)

53
63
71
83
63
44
24
22
16
14
8
8
9
9
14
7
21
25
26
48
71
99
99
100

Medium Clouds (% Sky Obscured)

20
43
72
92
81
75
72
87
92
95
79
60
34
32
17
7
21
27
42
71
86
100
100
100

High Clouds (% Sky Obscured)

100
73
43
12
38
66
84
68
38
13
40
60
42
32
17
7
12
13
14
29
43
50
60
78

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
4
2
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

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

Precipitation Probability (%)

18
20
20
17
36
52
55
63
81
86
75
69
58
54
57
69
94
95
95
88
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.2
0.5
0.5
0.3
0.3
0
0
0
0.2
0.6
1.1
0.9
0.5
0.6
1
1.2
1.5

Wind Speed/Direction (mph)

13
14
15
16
18
19
21
24
23
23
23
23
22
22
20
19
17
14
10
7
7
7
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-0
-0
2
2
2
2
3
4
9
8
7
7
7
8
8
8
7
8
7
8
8
8
10
9

Dew Point (°C)

0
0
1
2
3
5
6
8
7
8
8
8
8
9
9
8
8
8
8
8
9
9
10
9

Relative Humidity (%)

72
68
67
66
66
65
65
65
65
65
65
69
71
75
72
70
68
72
76
81
84
88
91
90

Pressure (mb)

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

Ozone (du)

371
370
370
370
371
369
367
365
365
364
363
362
362
361
361
360
359
359
359
359
360
361
363
365

Tuesday 7

Waning Gibbous 69%

02:46

08:16

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
23 Bad
00 Bad

Sun - Rise: 06:35, Set: 20:01, Transit: 13:18. Moon - Rise: 02:46, Set: 08:16. Civil Dark: 20:36 - 05:57. Nautical Dark: 21:19 - 05:14. Astro Dark: 22:07 - 04:26

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
98
98
86
71
56
53
51
50
48
40
31

Low Clouds (% Sky Obscured)

100
94
88
81
80
75
65
51
41
24
21
18
16
28
39
50
46
40
31

Medium Clouds (% Sky Obscured)

100
99
99
98
99
99
100
93
89
85
65
44
23
16
9
1
1
0
0

High Clouds (% Sky Obscured)

100
100
100
100
97
96
94
68
44
20
22
16
14
11
7
0
0
0
0

ISS Passover

Visibility (miles)

7
9
9
8
7
8
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

Precipitation Type

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

Precipitation Probability (%)

95
95
93
78
66
57
52
36
23
18
13
18
29
22
26
40
34
26
30

Precipitation Amount (mm)

1.6
1
0.6
0.5
0.3
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
9
6
6
8
8
9
9
12
13
16
16
16
17
16
16
16
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
6
5
5
5
4
4
4
4
5
5
5
5
4
4
4
4
3

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
90
91
87
81
78
76
72
69
74
80
87
88
91
91
91
90

Pressure (mb)

1003
1003
1003
1004
1004
1005
1005
1006
1006
1007
1007
1008
1008
1009
1009
1010
1011
1011
1012

Ozone (du)

368
371
374
377
381
385
390
394
398
401
404
410
417
423
434
445
457
448
440

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

Generated: 01/04/26 06:19:49. Forecast: 01/04/26 to 07/04/26. Timezone: UTC+1.00