Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 29

Waxing Gibbous 97%

19:55

04:56

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

Sun - Rise: 05:45, Set: 20:46, Transit: 13:15. Moon - Rise: 19:55, Set: 04:56. Civil Dark: 21:26 - 05:04. Nautical Dark: 22:17 - 04:11. Astro Dark: 23:25 - 03:01

Total Clouds (% Sky Obscured)

27
11
45
74
47
8
5
12
59
26
22
43
7
4
1
2
2
44
84
100
96
75
74
24

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
13
30
36
39
24

High Clouds (% Sky Obscured)

18
11
45
44
28
5
2
7
36
13
6
9
1
2
1
1
1
33
77
100
92
43
19
8

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
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)

20
19
16
16
14
13
12
12
13
14
14
13
13
12
13
14
15
14
14
12
10
8
7
5

Chance of Frost

Temperature (°C)

13
11
10
10
9
9
9
9
9
9
10
12
15
17
18
18
19
19
19
19
19
18
16
15

Feels Like (°C)

8
5
5
4
5
5
5
5
5
4
7
9
12
14
16
16
16
17
17
16
17
16
15
12

Dew Point (°C)

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

Relative Humidity (%)

59
59
60
62
64
65
69
73
74
75
69
63
57
51
50
49
48
50
52
55
61
67
72
73

Pressure (mb)

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

Ozone (du)

382
381
381
384
381
379
377
375
375
376
378
379
381
383
385
386
386
385
384
382
379
378
378
377

Thursday 30

Waxing Gibbous 99%

21:12

05:07

22 OK
23 OK
00 OK
01 Bad
02 Bad
03 OK
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

Sun - Rise: 05:43, Set: 20:48, Transit: 13:15. Moon - Rise: 21:12, Set: 05:07. Civil Dark: 21:28 - 05:02. Nautical Dark: 22:19 - 04:08. Astro Dark: 23:29 - 02:57

Total Clouds (% Sky Obscured)

23
25
44
56
69
46
65
91
85
80
68
87
91
98
99
100
100
99
93
90
95
100
100
100

Low Clouds (% Sky Obscured)

1
1
5
4
2
1
0
0
7
37
49
83
87
80
80
88
99
78
48
22
5
0
5
21

Medium Clouds (% Sky Obscured)

23
25
44
47
62
32
45
52
85
61
47
42
39
57
81
95
29
0
0
4
42
50
99
58

High Clouds (% Sky Obscured)

2
1
35
12
1
0
1
13
8
5
15
29
29
57
85
99
100
96
81
79
76
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
4
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
1
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
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
1
3
1
2
6
6
4
17
29
17
22
63
62
19
5
1
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.4
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
4
4
4
4
4
4
4
3
3
2
2
8
8
8
10
11
10
10
11
13
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
76
77
78
77
76
74
70
67
68
64
61
63
67
71
90
95
93
93
92
90
89
87
88

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018

Ozone (du)

377
377
376
375
375
372
372
371
369
370
369
369
369
369
369
369
369
368
367
369
372
373
376
376

Friday 1

Full Moon 100%

No Rise

05:22

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 OK
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:41, Set: 20:49, Transit: 13:15. Moon - Rise: No Rise, Set: 05:22. Civil Dark: 21:30 - 05:00. Nautical Dark: 22:22 - 04:05. Astro Dark: 23:34 - 02:52

Total Clouds (% Sky Obscured)

100
71
81
83
96
99
100
86
99
93
93
81
90
83
77
66
68
73
96
45
43
40
44
87

Low Clouds (% Sky Obscured)

35
43
64
69
87
63
76
72
91
87
85
71
80
75
33
10
12
3
4
13
8
6
5
2

Medium Clouds (% Sky Obscured)

95
51
45
47
43
43
62
12
37
19
20
14
18
25
10
27
40
57
22
35
43
40
44
79

High Clouds (% Sky Obscured)

100
36
35
18
81
98
100
52
52
62
40
40
17
12
36
32
41
38
81
45
43
40
44
87

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
1
16
26
28
17
19
9
6
4
2
1
1
3
2
5
5
5

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
11
11
12
12
12
12
11
11
11
12
15
15
16
16
15
14
14
13
12
9
6
3
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
9
9
9
9
9
9
10
10
11
11
11
11
11
11
11
11
11
11
11
10

Relative Humidity (%)

88
90
90
93
91
91
91
93
91
91
93
93
92
87
87
84
83
82
84
86
87
90
93
95

Pressure (mb)

1018
1018
1018
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1013
1013
1013
1013
1013

Ozone (du)

378
377
376
374
374
374
375
375
376
377
379
381
382
385
386
388
386
385
387
390
389
386
383
382

Saturday 2

Waning Gibbous 98%

22:29

05:42

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
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:39, Set: 20:51, Transit: 13:15. Moon - Rise: 22:29, Set: 05:42. Civil Dark: 21:32 - 04:58. Nautical Dark: 22:25 - 04:03. Astro Dark: 23:38 - 02:47

Total Clouds (% Sky Obscured)

100
100
96
49
42
46
75
85
81
79
74
73
81
73
62
61
55
25
34
33
33
30
27
34

Low Clouds (% Sky Obscured)

17
35
56
49
42
46
72
76
76
73
68
72
78
73
62
61
55
25
34
33
33
30
27
34

Medium Clouds (% Sky Obscured)

100
100
96
49
42
46
67
71
76
70
70
70
75
70
62
61
55
25
34
33
33
30
27
30

High Clouds (% Sky Obscured)

100
100
95
49
42
46
75
85
80
75
70
60
55
50
50
34
18
2
12
19
24
26
26
30

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
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
Very Light Rain
None
None
None
None

Precipitation Probability (%)

24
31
35
56
71
83
95
95
95
95
95
95
95
95
95
95
95
88
75
61
43
50
48
33

Precipitation Amount (mm)

0
0
0
0
0.3
0.4
0.6
0.8
0.8
0.9
1.1
1.1
1.3
1.3
1.3
0.9
0.8
0.7
0.4
0.2
0
0
0
0

Wind Speed/Direction (mph)

8
9
9
10
10
11
12
14
16
18
19
20
21
21
22
23
23
22
21
20
20
18
17
16

Chance of Frost

Temperature (°C)

11
11
11
10
10
10
11
11
10
11
11
11
11
11
10
10
10
10
10
10
10
10
10
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
96
96
96
93
90
85
85
91
90
88
85
85
85
87
85
85
83
81
83
84
85
90
91

Pressure (mb)

1013
1013
1012
1012
1012
1011
1011
1011
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012

Ozone (du)

383
383
382
381
380
379
378
379
380
380
381
383
384
385
386
386
387
386
384
385
390
401
400
401

Sunday 3

Waning Gibbous 95%

23:42

06:11

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

Sun - Rise: 05:37, Set: 20:53, Transit: 13:15. Moon - Rise: 23:42, Set: 06:11. Civil Dark: 21:34 - 04:55. Nautical Dark: 22:27 - 04:00. Astro Dark: 23:43 - 02:42

Total Clouds (% Sky Obscured)

42
44
44
57
65
88
79
69
54
29
58
64
59
55
44
40
36
28
28
28
25
51
73
96

Low Clouds (% Sky Obscured)

42
44
44
57
54
69
59
54
41
20
20
25
19
16
10
7
4
0
1
3
4
19
36
51

Medium Clouds (% Sky Obscured)

40
40
35
35
40
48
45
30
12
9
4
0
0
0
0
0
0
0
0
0
0
7
14
22

High Clouds (% Sky Obscured)

21
12
11
22
47
68
49
26
2
1
20
25
30
25
29
25
25
26
22
13
3
9
13
19

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

Precipitation Probability (%)

41
42
40
50
56
56
50
43
33
30
20
2
6
3
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
14
13
12
11
9
8
7
7
6
7
8
9
8
8
8
9
9
10
8
7
5
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
95
93
93
93
93
91
90
87
82
76
71
71
71
71
72
73
75
76
77
76
77
78
78

Pressure (mb)

1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

397
393
388
384
380
378
376
375
376
377
377
376
374
373
372
372
372
372
372
374
375
376
377
378

Monday 4

Waning Gibbous 90%

00:46

06:52

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 OK
19 OK
20 OK
21 OK

Sun - Rise: 05:35, Set: 20:55, Transit: 13:15. Moon - Rise: 00:46, Set: 06:52. Civil Dark: 21:36 - 04:53. Nautical Dark: 22:30 - 03:57. Astro Dark: 23:47 - 02:37

Total Clouds (% Sky Obscured)

98
99
99
98
96
94
79
68
62
68
75
80
69
54
37
40
46
77
65
44
18
18
17
18

Low Clouds (% Sky Obscured)

56
65
70
56
45
33
44
51
58
54
47
40
41
44
37
40
36
27
18
13
9
18
17
18

Medium Clouds (% Sky Obscured)

18
13
7
4
3
3
7
10
19
32
48
69
49
26
0
13
25
35
35
30
18
14
6
0

High Clouds (% Sky Obscured)

12
5
2
1
0
0
0
0
0
0
0
0
1
1
3
1
2
2
1
1
0
0
0
0

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 (%)

2
6
9
23
26
27
27
28
30
30
29
26
26
24
21
17
12
1
6
7
5
14
16
18

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)

4
4
4
4
3
4
6
6
6
6
7
9
10
11
12
14
14
14
15
15
15
16
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
81
83
81
84
85
87
85
84
84
80
76
72
73
72
72
66
61
56
56
56
56
55
55

Pressure (mb)

1014
1014
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013

Ozone (du)

379
378
378
377
377
377
376
378
379
380
381
382
383
383
384
385
386
387
388
387
386
384
385
386

Tuesday 5

Waning Gibbous 83%

01:37

07:48

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

Sun - Rise: 05:33, Set: 20:56, Transit: 13:15. Moon - Rise: 01:37, Set: 07:48. Civil Dark: 21:38 - 04:51. Nautical Dark: 22:32 - 03:54. Astro Dark: 23:52 - 02:32

Total Clouds (% Sky Obscured)

20
20
24
23
20
17
11
8
6
11
16
22
18
16
12
9
6
3
6
8
10

Low Clouds (% Sky Obscured)

20
20
24
23
20
17
11
8
6
11
16
22
18
16
12
9
6
3
4
5
6

Medium Clouds (% Sky Obscured)

0
0
0
8
14
17
11
5
0
0
0
0
0
0
0
0
0
0
1
1
2

High Clouds (% Sky Obscured)

0
1
2
2
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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

Fog (%)

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

Precipitation Probability (%)

14
10
4
10
14
16
23
29
32
32
29
23
22
18
9
9
9
6
18
24
28

Precipitation Amount (mm)

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
1
2
1
0
0
1
1
1
1
1
2
3
3
4
4
5
6
5
5
5

Dew Point (°C)

-1
-2
-2
-1
-1
-1
-1
-0
0
0
0
0
-0
0
0
1
1
1
1
2
2

Relative Humidity (%)

56
57
58
60
62
65
67
68
70
71
66
62
57
56
56
55
55
55
55
59
61

Pressure (mb)

1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

387
389
391
393
394
395
396
397
398
399
402
406
410
414
417
421
422
423
425
425
425

Forecast for Holyhead, Anglesey, United Kingdom (53.30,-4.65)

Generated: 29/04/26 22:26:32. Forecast: 29/04/26 to 05/05/26. Timezone: UTC+1.00