Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 2

Waxing Gibbous 100%

14:41

07:58

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

Sun - Rise: 08:17, Set: 16:16, Transit: 12:17. Moon - Rise: 14:41, Set: 07:58. Civil Dark: 16:56 - 07:38. Nautical Dark: 17:39 - 06:55. Astro Dark: 18:19 - 06:15

Total Clouds (% Sky Obscured)

53
66
61
3
2
2
2
1
0
0
0
0
4
1
1
8
8
22
9
5
17
40
19
16

Low Clouds (% Sky Obscured)

53
59
23
1
1
0
0
0
0
0
0
0
4
1
0
7
7
22
8
2
17
13
0
0

Medium Clouds (% Sky Obscured)

19
6
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
1
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
8
8
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

24
31
58
9
3
2
0
0
0
0
0
0
0
0
2
1
2
2
3
6
11
14
23
9

Precipitation Amount (mm)

0
0
0.3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

0
-0
-1
-1
-1
0
1
1
0
-1
-1
-2
-2
-2
-2
-2
-2
-2
-2
-2
-3
-2
-3
-3

Dew Point (°C)

2
1
0
-1
-2
-2
-2
-3
-3
-4
-4
-3
-3
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
-2

Relative Humidity (%)

85
79
83
82
70
71
64
62
62
60
64
73
78
83
84
81
84
83
83
84
88
91
91
83

Pressure (mb)

1007
1008
1008
1009
1010
1010
1010
1010
1010
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1012

Ozone (du)

299
295
291
285
286
290
294
294
290
287
285
292
293
297
304
308
312
315
327
334
344
347
345
345

Saturday 3

Full Moon 99%

16:02

08:54

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

Sun - Rise: 08:17, Set: 16:18, Transit: 12:17. Moon - Rise: 16:02, Set: 08:54. Civil Dark: 16:57 - 07:38. Nautical Dark: 17:40 - 06:55. Astro Dark: 18:20 - 06:15

Total Clouds (% Sky Obscured)

23
5
3
1
0
0
0
0
0
0
0
4
0
0
0
0
0
0
0
0
0
0
0
1

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
0
0

Medium Clouds (% Sky Obscured)

2
2
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 (%)

6
2
0
0
0
0
0
1
0
0
1
2
0
0
0
0
0
0
0
0
0
0
0
1

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)

6
6
6
6
8
10
10
11
11
11
8
8
7
7
6
5
5
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

0
0
0
-0
1
2
3
4
4
3
2
1
0
-0
-0
-1
-1
-1
-1
-1
-2
-2
-2
-2

Feels Like (°C)

-3
-3
-2
-3
-2
-1
-1
-0
0
0
-1
-2
-4
-2
-2
-2
-3
-3
-4
-4
-4
-4
-4
-4

Dew Point (°C)

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

Relative Humidity (%)

88
84
83
80
60
50
49
53
54
57
63
69
74
78
71
67
67
66
63
63
63
67
71
72

Pressure (mb)

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

Ozone (du)

351
351
347
343
338
341
343
345
348
346
345
345
346
351
351
351
351
351
350
349
346
339
333
334

Sunday 4

Waning Gibbous 96%

17:31

09:32

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

Sun - Rise: 08:17, Set: 16:19, Transit: 12:18. Moon - Rise: 17:31, Set: 09:32. Civil Dark: 16:58 - 07:37. Nautical Dark: 17:41 - 06:55. Astro Dark: 18:21 - 06:14

Total Clouds (% Sky Obscured)

3
2
3
3
7
4
42
69
84
75
65
57
25
14
25
78
88
85
87
90
92
94
97
99

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
1
0
0
10
5
14
3
4
10
15
20
29
30
29
35
35
41
47

Medium Clouds (% Sky Obscured)

3
2
3
3
4
3
25
34
56
69
36
50
25
14
25
78
88
85
87
88
89
93
96
99

High Clouds (% Sky Obscured)

1
2
1
0
0
0
0
0
0
0
0
0
0
3
2
1
29
30
5
2
1
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
9
9
9
9
9
6
8
4
1
0
0
7
3
8
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 (%)

1
1
2
1
4
6
19
29
13
10
3
8
15
32
33
28
30
34
33
39
38
32
25
12

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)

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

Chance of Frost

Temperature (°C)

-2
-2
-2
-2
-1
1
2
3
2
2
1
0
1
1
-0
-1
-1
-1
-0
-0
-1
-0
-0
-0

Feels Like (°C)

-4
-5
-4
-4
-3
-2
-1
-1
-2
-2
-3
-2
-4
-5
-3
-4
-4
-4
-4
-4
-4
-4
-4
-3

Dew Point (°C)

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

Relative Humidity (%)

76
82
86
87
84
80
80
80
86
85
84
88
80
78
91
92
96
98
98
98
96
96
96
96

Pressure (mb)

1018
1018
1018
1018
1019
1019
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1015

Ozone (du)

338
344
347
349
352
351
351
352
346
347
347
347
353
358
363
368
378
387
387
383
380
383
386
384

Monday 5

Waning Gibbous 90%

19:01

09:58

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

Sun - Rise: 08:17, Set: 16:20, Transit: 12:18. Moon - Rise: 19:01, Set: 09:58. Civil Dark: 16:59 - 07:37. Nautical Dark: 17:42 - 06:55. Astro Dark: 18:22 - 06:14

Total Clouds (% Sky Obscured)

96
92
89
87
84
82
70
41
7
5
3
2
2
2
0
0
0
0
0
0
0
5
5
11

Low Clouds (% Sky Obscured)

37
29
20
20
22
23
19
9
7
5
3
1
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

95
91
89
85
80
78
64
31
0
0
0
0
0
0
0
0
0
0
0
0
0
3
3
2

High Clouds (% Sky Obscured)

1
1
16
20
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
10

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 (%)

8
10
9
9
9
5
1
1
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)

5
4
4
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Chance of Frost

Temperature (°C)

0
-0
-1
-1
1
1
2
2
2
2
0
-1
-2
-2
-2
-3
-3
-3
-3
-3
-3
-3
-3
-3

Feels Like (°C)

-4
-3
-4
-4
-2
-2
-1
-1
-1
1
-2
-3
-4
-4
-4
-5
-4
-5
-5
-5
-5
-5
-5
-5

Dew Point (°C)

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

Relative Humidity (%)

92
91
91
87
84
80
74
70
70
77
80
81
81
81
79
78
76
75
73
72
71
68
67
67

Pressure (mb)

1015
1015
1016
1016
1016
1017
1016
1016
1016
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019

Ozone (du)

391
391
390
392
391
389
383
382
383
389
391
390
385
385
385
387
387
386
382
380
377
378
379
382

Tuesday 6

Waning Gibbous 83%

20:26

10:16

06 OK
07 OK
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 Good

Sun - Rise: 08:16, Set: 16:21, Transit: 12:19. Moon - Rise: 20:26, Set: 10:16. Civil Dark: 17:00 - 07:37. Nautical Dark: 17:43 - 06:55. Astro Dark: 18:23 - 06:14

Total Clouds (% Sky Obscured)

31
38
61
87
94
100
100
100
100
100
100
100
90
92
94
84
71
60
57
58
43
17
7
2

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
10
21
31
42
52
62
42
49
57
61
62
60
57
58
43
17
7
2

Medium Clouds (% Sky Obscured)

29
32
48
87
94
100
100
100
100
100
100
100
70
40
11
11
7
5
7
12
12
8
4
0

High Clouds (% Sky Obscured)

16
24
38
42
24
10
26
40
59
37
18
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
3
5
7
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
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
1
2
0
2
3
1
8
17
27
35
32
19
19
14
4
34
50
65
58
45
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

-3
-3
-3
-2
-1
1
2
2
3
2
2
2
2
0
0
-0
-0
-1
-1
-1
-1
-1
-1
-1

Feels Like (°C)

-5
-5
-5
-4
-4
-2
-2
-2
-1
-2
-2
-3
-3
-5
-4
-4
-4
-4
-3
-3
-3
-3
-3
-3

Dew Point (°C)

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

Relative Humidity (%)

69
75
78
78
75
75
74
73
73
76
79
83
88
88
89
89
87
86
83
83
81
81
81
80

Pressure (mb)

1019
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1016
1015
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

384
386
386
383
385
387
387
382
380
380
380
383
384
386
389
391
392
394
395
394
393
391
389
387

Wednesday 7

Waning Gibbous 74%

21:46

10:29

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

Sun - Rise: 08:16, Set: 16:23, Transit: 12:19. Moon - Rise: 21:46, Set: 10:29. Civil Dark: 17:02 - 07:37. Nautical Dark: 17:44 - 06:54. Astro Dark: 18:24 - 06:14

Total Clouds (% Sky Obscured)

3
3
3
7
11
14
31
46
63
66
69
74
80
75
71
62
57
43
38
42
38
45
63
77

Low Clouds (% Sky Obscured)

3
3
3
7
11
14
27
26
25
25
22
21
23
27
28
28
28
27
22
17
13
23
32
42

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
11
25
28
29
36
42
53
63
71
62
57
43
38
42
38
45
63
65

High Clouds (% Sky Obscured)

0
0
0
0
0
0
3
6
11
41
68
74
70
47
25
25
20
25
20
20
20
20
25
25

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
8
6

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 (%)

9
5
0
1
2
0
3
4
2
5
8
2
3
5
1
4
4
1
3
7
13
31
40
45

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)

6
6
6
6
6
6
5
5
6
6
6
6
5
5
5
5
5
5
5
6
7
7
7
7

Chance of Frost

Temperature (°C)

-1
-1
-1
-1
1
2
3
3
2
2
1
1
-0
-0
0
0
1
1
2
2
3
3
4
4

Feels Like (°C)

-4
-3
-4
-4
-4
-4
-4
1
1
1
1
0
0
-3
-3
-4
-3
-3
-3
-1
-2
-2
-1
-1

Dew Point (°C)

-4
-4
-4
-4
-4
-3
-3
-3
-2
-2
-2
-2
-2
-2
-2
-2
-2
-1
-1
0
1
2
3
3

Relative Humidity (%)

80
80
78
77
71
69
65
68
72
73
78
81
86
86
87
87
86
83
81
85
86
89
93
94

Pressure (mb)

1016
1016
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1013
1013
1012
1012
1011

Ozone (du)

385
380
375
370
369
369
368
368
367
366
353
340
327
323
320
316
317
318
319
320
322
324
324
325

Thursday 8

Waning Gibbous 64%

23:01

10:41

Sun - Rise: 08:15, Set: 16:24, Transit: 12:20. Moon - Rise: 23:01, Set: 10:41. Civil Dark: 17:03 - 07:36. Nautical Dark: 17:45 - 06:54. Astro Dark: 18:25 - 06:14

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 Barry, Vale of Glamorgan, United Kingdom (51.40,-3.28)

Generated: 02/01/26 06:09:29. Forecast: 02/01/26 to 08/01/26. Timezone: UTC+0.00