Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 5

Waning Gibbous 90%

19:01

10:05

06 Bad
07 Bad
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 OK
21 Bad
22 OK
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 08:25, Set: 16:18, Transit: 12:21. Moon - Rise: 19:01, Set: 10:05. Civil Dark: 16:59 - 07:44. Nautical Dark: 17:42 - 07:01. Astro Dark: 18:24 - 06:19

Total Clouds (% Sky Obscured)

20
14
12
0
0
2
9
14
16
10
3
3
6
8
18
49
31
54
83
58
80
78
100
82

Low Clouds (% Sky Obscured)

0
4
0
0
0
0
9
14
16
10
0
0
0
0
0
0
26
32
45
58
70
70
66
62

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
3
2
6
10
19
15
27
24
21
23
16

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
3
3
3
2
29
100
29

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
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

40
95
4
3
2
2
1
0
0
0
1
1
2
4
7
8
7
10
7
9
13
18
8
16

Precipitation Amount (mm)

0
1.3
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
8
7
4
4
3
5
6
8
8
6
4
3
4
4
4
3
3
2
2
2
1
1
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

73
72
72
74
74
71
72
70
73
76
77
78
78
78
77
77
77
78
78
78
80
81
83
80

Pressure (mb)

1014
1014
1015
1016
1016
1017
1017
1017
1017
1018
1019
1019
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020

Ozone (du)

379
383
392
400
402
400
396
397
400
401
398
396
399
398
395
391
386
382
381
378
373
370
367
367

Tuesday 6

Waning Gibbous 83%

20:27

10:22

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 OK
05 Bad

Sun - Rise: 08:24, Set: 16:20, Transit: 12:22. Moon - Rise: 20:27, Set: 10:22. Civil Dark: 17:00 - 07:44. Nautical Dark: 17:44 - 07:00. Astro Dark: 18:25 - 06:19

Total Clouds (% Sky Obscured)

93
100
100
99
83
84
93
88
95
100
100
95
93
96
96
94
89
96
52
58
46
43
29
51

Low Clouds (% Sky Obscured)

85
57
55
77
59
62
73
62
80
100
100
88
87
92
96
78
79
67
50
58
46
43
29
43

Medium Clouds (% Sky Obscured)

56
100
99
96
75
70
79
69
90
99
98
89
46
32
35
37
74
43
2
2
0
2
2
33

High Clouds (% Sky Obscured)

15
20
59
25
2
3
4
6
2
4
0
0
0
0
0
50
41
40
2
2
0
0
0
2

ISS Passover

Visibility (miles)

9
9
6
7
7
6
9
9
9
5
6
5
0
5
9
9
3
6
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
1
0

Precipitation Type

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

Precipitation Probability (%)

25
33
33
45
45
35
39
38
54
93
95
95
76
53
47
77
94
60
26
24
18
5
15
8

Precipitation Amount (mm)

0
0
0
0.4
0.3
0.2
0.3
0.2
0.2
0.8
0.9
1.4
0.3
0.2
0
0.4
0.9
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
9
9
11
13
13
15
15
14
14
16
16
15
15
12
12
13
13
19
18
18
17
14
12

Chance of Frost

Temperature (°C)

4
4
4
5
5
5
5
6
6
6
6
6
6
6
6
6
6
6
6
5
5
5
5
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
82
88
85
85
83
76
75
79
91
93
94
96
91
88
88
88
93
76
79
79
79
78
76

Pressure (mb)

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

Ozone (du)

367
366
368
366
364
368
367
365
367
367
368
369
373
372
373
370
368
375
374
371
365
357
350
338

Wednesday 7

Waning Gibbous 74%

21:48

10:34

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: 08:24, Set: 16:21, Transit: 12:22. Moon - Rise: 21:48, Set: 10:34. Civil Dark: 17:01 - 07:43. Nautical Dark: 17:45 - 07:00. Astro Dark: 18:26 - 06:19

Total Clouds (% Sky Obscured)

52
79
74
87
66
92
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

40
68
62
63
66
58
55
76
80
86
91
100
100
92
66
71
78
63
62
59
48
45
49
46

Medium Clouds (% Sky Obscured)

32
63
43
85
66
86
83
97
98
100
100
100
60
100
100
99
69
100
100
100
100
80
78
88

High Clouds (% Sky Obscured)

9
49
45
8
10
46
46
43
60
99
88
100
100
100
100
100
100
100
100
100
100
82
62
43

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
1
0
0
0
1
1
7
6
7
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
Light Rain
Snow
Snow
Snow
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
22
24
11
7
13
4
2
10
34
72
94
86
69
59
40
22
22
34
25
21
16
14
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
0.7
0.4
0.3
0.3
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-0
0
1
1
1
1
1
1
1
0
1
2
2
2
2
4
4
4
5
5
5
5
4
4

Relative Humidity (%)

76
77
79
79
78
75
74
71
71
71
79
96
98
98
96
96
96
94
94
90
87
87
85
83

Pressure (mb)

1012
1012
1013
1013
1013
1014
1013
1013
1012
1012
1011
1010
1010
1009
1008
1007
1007
1007
1007
1007
1007
1008
1007
1007

Ozone (du)

328
318
309
308
308
310
310
310
302
301
303
307
308
310
312
313
315
316
315
314
315
317
317
321

Thursday 8

Waning Gibbous 64%

23:05

10:45

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: 08:23, Set: 16:22, Transit: 12:23. Moon - Rise: 23:05, Set: 10:45. Civil Dark: 17:02 - 07:43. Nautical Dark: 17:46 - 07:00. Astro Dark: 18:27 - 06:18

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

48
52
56
56
65
72
75
81
86
90
95
100
100
100
100
100
100
100
87
74
63
58
54
56

Medium Clouds (% Sky Obscured)

76
97
100
100
100
100
100
100
100
100
100
100
100
100
81
60
60
59
100
100
100
73
30
31

High Clouds (% Sky Obscured)

62
82
100
100
100
100
100
100
100
100
100
100
90
80
70
25
41
65
100
100
100
92
40
35

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
5
0
0
1
3
1
3
9
9
9
5
0
1
0
1
9
0

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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
Light Rain
Snow
Light Rain
Snow
Light Rain
Very Light Rain
None

Precipitation Probability (%)

10
4
9
2
1
13
54
83
95
95
95
95
95
95
95
95
95
95
95
95
95
88
74
56

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.5
0.7
1.4
1.8
2.7
3
2.7
3
2.4
2
2.1
1.8
2.2
0.7
0.4
0.2
0

Wind Speed/Direction (mph)

11
9
6
4
2
3
5
7
9
12
18
22
25
26
27
28
25
24
24
19
21
19
19
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
3
3
3
3
4
3
3
3
3
3
3
4
3
4
3
2
2
2
3
2
3
3
4

Relative Humidity (%)

83
83
85
85
82
84
83
86
93
96
94
89
91
88
87
83
82
86
94
94
98
96
91
98

Pressure (mb)

1007
1007
1006
1006
1005
1004
1003
1001
999
996
993
989
985
982
980
977
976
975
973
973
976
979
982
984

Ozone (du)

324
323
316
316
321
323
323
324
323
322
323
324
328
332
344
360
367
365
363
363
368
389
396
388

Friday 9

Waning Gibbous 54%

00:19

10:54

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 OK
05 Good

Sun - Rise: 08:23, Set: 16:24, Transit: 12:23. Moon - Rise: 00:19, Set: 10:54. Civil Dark: 17:04 - 07:43. Nautical Dark: 17:47 - 06:59. Astro Dark: 18:28 - 06:18

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
99
99
98
98
95
85
81
77
68
55
33
41
51
69
51
33
14

Low Clouds (% Sky Obscured)

65
73
82
81
81
82
81
83
82
75
68
55
72
73
71
64
55
33
41
47
45
39
33
14

Medium Clouds (% Sky Obscured)

88
100
100
100
100
100
90
77
63
59
59
50
57
51
46
32
18
4
18
33
57
41
21
1

High Clouds (% Sky Obscured)

35
40
45
64
88
95
63
38
15
15
15
19
57
43
26
9
3
0
0
0
1
2
3
3

ISS Passover

Visibility (miles)

0
1
0
0
0
1
1
0
7
5
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

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

Precipitation Probability (%)

73
90
94
86
82
83
78
69
66
51
44
50
35
32
36
32
31
30
26
18
6
10
9
2

Precipitation Amount (mm)

0.2
0.5
0.7
0.6
0.5
0.7
0.6
0.5
0.6
0.3
0.2
0.5
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
19
21
24
24
24
23
22
22
23
21
20
19
15
15
14
15
16
17
15
14
12
10
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
100
98
96
96
94
96
94
85
79
78
78
78
76
76
76
76
76
76
76
76
75
75

Pressure (mb)

987
989
991
993
994
996
997
999
1000
1001
1002
1004
1005
1006
1007
1008
1009
1010
1011
1012
1012
1013
1014
1014

Ozone (du)

388
394
403
394
389
396
401
396
395
397
402
399
398
397
395
394
393
392
391
386
380
375
373
370

Saturday 10

Third Quarter 52%

01:33

11:04

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 Bad

Sun - Rise: 08:22, Set: 16:25, Transit: 12:24. Moon - Rise: 01:33, Set: 11:04. Civil Dark: 17:05 - 07:42. Nautical Dark: 17:48 - 06:59. Astro Dark: 18:29 - 06:18

Total Clouds (% Sky Obscured)

24
34
50
66
82
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

24
16
15
14
12
10
9
6
5
16
30
43
62
82
100
99
97
94
96
97
99
99
99
99

Medium Clouds (% Sky Obscured)

3
10
20
17
18
18
44
65
87
88
92
100
100
100
100
100
100
100
100
100
100
100
99
99

High Clouds (% Sky Obscured)

15
27
39
57
75
92
95
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
7
5
4
3
2
2
2
3
5
7
9
7
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
Snow
Snow
Snow
Snow
Sleet
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

2
2
1
3
4
3
6
5
0
6
12
19
38
54
66
79
95
95
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.2
0.3
0.4
0.6
0.9
1
1.2
1
1.1
1.8
1.5

Wind Speed/Direction (mph)

7
6
5
5
5
6
6
4
4
5
6
7
8
9
10
12
16
20
24
24
24
25
19
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
73
73
72
68
63
59
61
66
68
71
73
76
79
82
85
86
88
91
90
88
87
87
87

Pressure (mb)

1015
1015
1016
1016
1017
1017
1017
1016
1016
1015
1015
1014
1013
1012
1010
1009
1007
1004
1002
1000
997
995
993
992

Ozone (du)

367
360
353
346
340
335
330
327
323
320
317
313
310
307
303
300
298
297
296
292
288
284
284
285

Sunday 11

Waning Crescent 44%

02:48

11:15

Sun - Rise: 08:21, Set: 16:27, Transit: 12:24. Moon - Rise: 02:48, Set: 11:15. Civil Dark: 17:06 - 07:41. Nautical Dark: 17:50 - 06:58. Astro Dark: 18:31 - 06:17

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

Generated: 05/01/26 05:45:22. Forecast: 05/01/26 to 11/01/26. Timezone: UTC+0.00