Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 27

Waning Gibbous 98%

16:55

09:16

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

Sun - Rise: 07:08, Set: 16:56, Transit: 12:02. Moon - Rise: 16:55, Set: 09:16. Civil Dark: 17:32 - 06:32. Nautical Dark: 18:12 - 05:51. Astro Dark: 18:53 - 05:11

Total Clouds (% Sky Obscured)

92
93
60
49
30
34
36
50
68
86
64
73
73
76
69
33
20
44
94
99
100
99
100
100

Low Clouds (% Sky Obscured)

74
35
10
15
30
34
36
50
66
65
61
54
43
63
58
27
14
18
23
13
33
14
49
48

Medium Clouds (% Sky Obscured)

68
0
0
45
1
0
0
0
0
31
45
63
49
65
23
2
5
23
87
98
100
98
100
100

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
38
1
0
0
2
4
10
85
72
45
2
0
62

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
8
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
20
21
15
2
6
9
27
24
24
27
23
40
37
37
19
14
4
1
0
1
18
31

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)

42
34
31
27
28
27
27
26
26
25
24
23
23
22
22
21
21
21
21
22
22
22
23
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
12
10
10
9
7
6
6
6
6
7
7
6
6
7
6
6
6
6
6
6
6
6
6

Relative Humidity (%)

93
86
80
81
79
71
70
68
71
70
73
72
66
67
70
70
71
70
68
70
68
68
66
68

Pressure (mb)

990
991
994
995
996
998
999
1000
1002
1003
1004
1006
1007
1008
1009
1010
1011
1013
1014
1015
1015
1016
1016
1016

Ozone (du)

271
274
277
286
292
303
308
314
317
319
321
319
314
306
307
302
305
309
310
313
314
316
316
312

Wednesday 28

Waning Gibbous 95%

17:31

10:47

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

Sun - Rise: 07:10, Set: 16:54, Transit: 12:02. Moon - Rise: 17:31, Set: 10:47. Civil Dark: 17:30 - 06:34. Nautical Dark: 18:11 - 05:53. Astro Dark: 18:51 - 05:13

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
34
33
69
62
44
64
67
39
46
39
27
26
30
34
63
71
78
80

Low Clouds (% Sky Obscured)

46
73
81
67
65
61
28
29
68
59
40
62
40
7
21
10
1
1
6
8
43
39
54
58

Medium Clouds (% Sky Obscured)

100
75
93
100
97
38
8
0
2
3
4
3
3
4
3
7
27
12
30
34
55
56
55
51

High Clouds (% Sky Obscured)

99
100
100
100
100
100
4
2
1
1
2
15
25
35
45
39
27
26
30
34
50
60
55
60

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

Precipitation Probability (%)

18
36
57
66
34
21
9
7
10
5
7
4
4
3
3
2
2
3
2
4
4
7
17
24

Precipitation Amount (mm)

0
0
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

22
24
26
25
24
22
20
18
17
18
18
17
17
16
14
13
12
12
12
11
11
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
75
79
82
86
89
86
86
80
76
71
71
75
79
80
87
90
90
90
89
87
87
87
86

Pressure (mb)

1017
1017
1017
1017
1017
1018
1019
1020
1021
1021
1022
1022
1022
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

309
308
302
298
295
295
294
293
292
289
286
283
280
276
270
266
264
263
262
261
260
258
257
256

Thursday 29

Waning Gibbous 88%

18:26

12:06

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
23 Bad
00 Bad

Sun - Rise: 07:12, Set: 16:52, Transit: 12:02. Moon - Rise: 18:26, Set: 12:06. Civil Dark: 17:28 - 06:36. Nautical Dark: 18:09 - 05:55. Astro Dark: 18:49 - 05:15

Total Clouds (% Sky Obscured)

73
96
100
100
100
100
100
100
97
87
85
85
80
86
70
94
72
74
78
82
85
89
92
93

Low Clouds (% Sky Obscured)

49
74
58
66
68
66
52
57
61
67
44
40
37
39
38
52
45
43
42
41
39
38
36
40

Medium Clouds (% Sky Obscured)

52
71
47
45
50
50
88
99
89
62
50
4
4
2
2
0
19
44
44
60
63
76
90
91

High Clouds (% Sky Obscured)

52
86
100
99
75
92
99
90
70
35
62
64
62
76
60
89
69
62
58
62
62
58
58
26

ISS Passover

Visibility (miles)

9
9
9
9
8
8
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 (%)

30
33
27
33
32
25
21
11
25
13
19
16
7
14
0
1
0
0
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
87
86
86
86
87
81
80
81
79
80
79
76
76
76
76
79
79
79
79
79
80
81
81

Pressure (mb)

1024
1024
1024
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022

Ozone (du)

257
258
259
260
259
259
259
259
259
260
261
261
260
260
260
261
261
263
264
265
266
266
266
266

Friday 30

Waning Gibbous 79%

19:41

13:05

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
23 Bad
00 Bad

Sun - Rise: 07:14, Set: 16:50, Transit: 12:02. Moon - Rise: 19:41, Set: 13:05. Civil Dark: 17:26 - 06:37. Nautical Dark: 18:07 - 05:56. Astro Dark: 18:47 - 05:16

Total Clouds (% Sky Obscured)

94
97
98
99
100
100
100
100
100
100
100
100
100
100
99
98
97
98
99
100
100
100
100
100

Low Clouds (% Sky Obscured)

34
23
55
63
71
73
77
80
80
80
79
80
79
80
85
90
95
96
98
100
100
100
100
97

Medium Clouds (% Sky Obscured)

81
92
93
94
95
84
73
34
73
80
85
84
52
30
85
89
60
32
35
37
64
95
99
59

High Clouds (% Sky Obscured)

51
30
52
75
100
100
100
100
97
86
86
85
90
85
70
51
35
53
66
78
61
86
40
88

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
5
7
7
17
33
20
81
72
67
53
47
47
69
76
63
63
66
57
83
85
92
83

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.5
0.4
0.5
0.2
0
0
0.4
0.4
0.2
0.3
0.3
0
0.5
0.5
0.8
0.6

Wind Speed/Direction (mph)

16
16
16
16
16
16
17
17
17
17
18
17
16
16
16
15
14
13
13
12
10
9
8
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
81
79
77
76
75
77
77
84
87
89
87
90
92
93
92
95
95
95
96
98
98
98

Pressure (mb)

1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1024
1024
1024
1025
1025
1026
1026
1026
1026

Ozone (du)

265
266
265
265
264
266
267
269
271
274
275
276
277
277
278
276
274
273
272
271
270
268
268
269

Saturday 31

Waning Gibbous 69%

21:09

13:44

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
23 OK
00 OK

Sun - Rise: 07:16, Set: 16:48, Transit: 12:02. Moon - Rise: 21:09, Set: 13:44. Civil Dark: 17:24 - 06:39. Nautical Dark: 18:05 - 05:58. Astro Dark: 18:46 - 05:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
97
97
97
97
96
96
91
95
95
95
73
54
31
21

Low Clouds (% Sky Obscured)

96
94
94
95
95
95
94
94
95
97
86
87
84
86
83
74
70
58
51
41
33
26
19
14

Medium Clouds (% Sky Obscured)

85
86
57
55
56
62
66
84
93
67
65
59
49
38
29
30
30
30
30
35
23
12
0
0

High Clouds (% Sky Obscured)

93
87
97
63
100
81
39
18
50
57
77
86
87
89
63
34
6
5
4
3
2
1
0
0

ISS Passover

Visibility (miles)

6
5
5
9
5
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

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

Precipitation Probability (%)

80
81
68
80
66
54
53
54
42
35
27
41
46
46
53
54
46
37
19
4
6
6
3
7

Precipitation Amount (mm)

0.4
0.6
0.3
0.6
0.3
0.2
0.2
0.3
0
0
0
0
0
0.2
0.2
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
12
12
11
11
11
10
10
10
10
9
9
9
10
9
8
8
8
8
8
7
7
8

Relative Humidity (%)

96
95
95
92
90
90
87
84
84
83
81
79
80
81
83
80
77
76
76
77
77
78
81
84

Pressure (mb)

1027
1027
1027
1027
1027
1027
1028
1028
1029
1029
1029
1029
1030
1030
1030
1031
1031
1032
1032
1033
1033
1033
1034
1034

Ozone (du)

269
268
266
267
266
267
266
265
265
264
265
265
265
264
264
265
265
265
265
265
265
266
266
267

Sunday 1

Third Quarter 57%

22:39

14:09

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

Sun - Rise: 07:18, Set: 16:46, Transit: 12:02. Moon - Rise: 22:39, Set: 14:09. Civil Dark: 17:22 - 06:41. Nautical Dark: 18:04 - 06:00. Astro Dark: 18:44 - 05:19

Total Clouds (% Sky Obscured)

10
0
0
0
0
17
34
51
52
54
56
50
44
39
26
14
0
0
0
0
0
1
1
1

Low Clouds (% Sky Obscured)

10
0
0
0
0
14
27
41
42
43
44
39
35
30
20
10
0
0
0
0
0
1
1
1

Medium 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
0
0

High 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
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 (%)

7
7
5
2
1
7
4
0
9
4
1
1
5
1
1
0
0
2
1
0
2
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
82
82
81
82
82
82
81
78
76
72
70
70
72
72
76
80
83
82
84
84
84
85
87

Pressure (mb)

1034
1035
1035
1035
1036
1036
1036
1037
1037
1038
1038
1038
1038
1038
1038
1039
1039
1040
1040
1040
1041
1041
1041
1041

Ozone (du)

270
272
274
276
277
278
279
279
280
280
280
280
280
281
282
282
282
283
284
286
287
288
289
289

Monday 2

Waning Crescent 45%

00:07

14:26

Sun - Rise: 07:20, Set: 16:44, Transit: 12:02. Moon - Rise: 00:07, Set: 14:26. Civil Dark: 17:21 - 06:43. Nautical Dark: 18:02 - 06:01. Astro Dark: 18:42 - 05:21

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 27/10/26 01:07:10. Forecast: 27/10/26 to 02/11/26. Timezone: UTC+0.00