Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 3%

07:53

14:04

23 Bad
00 Bad
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 OK
20 Good
21 Good
22 OK

Sun - Rise: 08:42, Set: 15:59, Transit: 12:21. Moon - Rise: 07:53, Set: 14:04. Civil Dark: 16:44 - 07:58. Nautical Dark: 17:31 - 07:11. Astro Dark: 18:15 - 06:27

Total Clouds (% Sky Obscured)

58
61
66
54
36
62
100
100
100
100
100
87
100
100
100
100
100
100
76
38
9
4
2
36

Low Clouds (% Sky Obscured)

40
53
58
46
30
28
29
28
17
11
53
6
26
41
50
100
54
81
36
16
7
4
2
28

Medium Clouds (% Sky Obscured)

45
55
50
0
0
20
3
22
48
91
81
51
100
100
100
100
100
100
76
38
0
0
0
10

High Clouds (% Sky Obscured)

0
0
0
0
0
50
100
100
100
100
99
60
65
70
58
45
35
60
60
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
3
3
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
Light Rain
Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

14
2
3
7
0
0
0
0
0
0
3
9
9
20
46
95
95
41
1
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1.6
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
12
11
14
14
13
13
11
11
7
7
7
9
12
14
14
15
10
12
12
11
12
13
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
6
5
5
4
4
4
3
4
4
4
4
5
5
6
7
7
6
5
4
3
2
1
1

Relative Humidity (%)

88
88
85
87
85
83
85
86
88
88
91
85
82
80
81
85
88
91
90
91
89
85
80
82

Pressure (mb)

997
997
998
998
998
998
998
999
999
998
998
997
995
994
992
991
991
991
992
994
995
995
996
996

Ozone (du)

333
330
331
334
327
319
319
324
339
360
357
350
356
371
382
384
377
367
366
367
374
387
379
372

Thursday 18

Waning Crescent 1%

09:00

14:42

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 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad

Sun - Rise: 08:43, Set: 16:00, Transit: 12:21. Moon - Rise: 09:00, Set: 14:42. Civil Dark: 16:44 - 07:58. Nautical Dark: 17:31 - 07:11. Astro Dark: 18:15 - 06:28

Total Clouds (% Sky Obscured)

67
76
69
80
100
84
79
75
66
69
74
60
64
72
59
59
74
44
22
57
77
85
85
96

Low Clouds (% Sky Obscured)

44
74
66
70
74
75
76
71
56
67
72
60
64
72
59
58
55
44
22
33
34
28
34
35

Medium Clouds (% Sky Obscured)

38
0
0
5
45
16
3
34
24
2
7
2
1
0
0
0
33
0
0
16
21
57
69
86

High Clouds (% Sky Obscured)

28
4
4
17
67
4
2
0
0
0
0
0
0
0
0
2
23
22
22
35
35
40
52
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 (%)

1
2
5
12
12
12
6
2
4
6
16
3
5
5
12
4
4
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)

16
18
17
17
18
17
17
17
18
18
18
17
17
17
17
15
14
12
12
12
11
10
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
82
86
83
80
82
87
82
79
81
79
81
78
79
79
79
82
84
88
90
88
88
86
86

Pressure (mb)

996
997
997
997
998
998
999
1000
1001
1002
1004
1005
1006
1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1009

Ozone (du)

377
364
369
372
369
379
371
359
356
352
349
323
298
292
282
281
281
286
288
288
291
290
292
293

Friday 19

Waning Crescent 0%

09:53

15:37

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

Sun - Rise: 08:44, Set: 16:00, Transit: 12:22. Moon - Rise: 09:53, Set: 15:37. Civil Dark: 16:44 - 07:59. Nautical Dark: 17:31 - 07:12. Astro Dark: 18:15 - 06:28

Total Clouds (% Sky Obscured)

100
96
73
65
85
77
45
87
100
97
75
78
88
100
100
100
100
100
100
100
100
100
98
97

Low Clouds (% Sky Obscured)

34
29
43
35
34
48
45
45
46
50
67
65
69
74
73
75
64
61
71
63
56
48
53
58

Medium Clouds (% Sky Obscured)

19
40
73
65
85
77
45
75
70
60
55
45
45
45
47
49
98
87
74
87
69
80
88
80

High Clouds (% Sky Obscured)

100
80
66
65
70
63
45
87
100
94
65
68
79
100
100
100
100
100
90
63
97
100
86
71

ISS Passover

Visibility (miles)

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

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
Light Rain
None
None

Precipitation Probability (%)

0
1
0
0
3
5
5
4
6
7
10
11
15
26
32
27
30
46
46
40
54
67
45
42

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0
0

Wind Speed/Direction (mph)

7
7
7
7
7
7
8
9
10
10
11
13
15
16
16
16
15
13
12
15
13
11
14
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
86
85
83
79
81
79
84
81
79
79
81
82
85
85
84
87
93
87
90
90
90
91

Pressure (mb)

1008
1008
1007
1007
1006
1005
1005
1004
1003
1003
1003
1003
1003
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1004

Ozone (du)

288
284
283
287
292
295
293
290
295
300
300
301
305
314
323
334
353
361
363
362
363
362
363
360

Saturday 20

New Moon 2%

10:31

16:47

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
22 Bad

Sun - Rise: 08:44, Set: 16:00, Transit: 12:22. Moon - Rise: 10:31, Set: 16:47. Civil Dark: 16:45 - 07:59. Nautical Dark: 17:32 - 07:12. Astro Dark: 18:16 - 06:29

Total Clouds (% Sky Obscured)

95
97
99
100
99
98
98
99
99
100
99
99
98
96
95
93
88
81
75
73
70
65
67
72

Low Clouds (% Sky Obscured)

62
65
63
64
66
66
67
77
82
85
87
89
91
85
90
88
82
74
67
63
57
53
58
63

Medium Clouds (% Sky Obscured)

62
79
77
79
75
76
86
71
67
64
60
52
69
67
32
16
72
70
75
73
70
48
12
68

High Clouds (% Sky Obscured)

56
68
86
100
91
83
78
86
93
100
91
84
80
69
36
56
64
55
20
43
46
55
56
57

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

53
65
41
48
40
15
17
20
20
15
9
8
7
12
22
19
33
70
89
86
52
22
9
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
94
93
91
94
91
91
90
88
90
90
87
85
85
90
90
93
94
94
96
96
94
94
94

Pressure (mb)

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

Ozone (du)

359
359
360
362
364
367
368
370
373
371
368
366
364
362
363
363
364
366
369
371
371
373
376
379

Sunday 21

Waxing Crescent 6%

10:56

18:07

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
22 Bad

Sun - Rise: 08:44, Set: 16:01, Transit: 12:23. Moon - Rise: 10:56, Set: 18:07. Civil Dark: 16:46 - 08:00. Nautical Dark: 17:32 - 07:13. Astro Dark: 18:16 - 06:29

Total Clouds (% Sky Obscured)

70
68
65
63
66
70
72
82
92
100
98
95
94
95
96
97
94
94
94
94
89
86
88
89

Low Clouds (% Sky Obscured)

67
67
65
63
66
70
72
74
74
71
76
81
86
85
84
85
79
76
73
72
74
77
78
79

Medium Clouds (% Sky Obscured)

70
41
54
63
55
40
40
60
82
92
95
93
91
77
62
41
32
26
21
33
32
30
24
10

High Clouds (% Sky Obscured)

40
59
60
52
51
52
45
32
39
32
26
26
30
27
22
21
16
10
4
5
6
8
15
18

ISS Passover

Visibility (miles)

9
8
7
9
9
9
8
9
7
4
4
4
3
6
7
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

18
24
23
29
31
34
38
38
44
42
45
52
53
58
49
37
32
25
9
12
10
5
9
10

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
2
2
3
3
3
3
4
4
4
4
4
5
6
6
6
6
6
7
7
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

96
96
98
94
94
94
93
93
91
94
96
96
96
96
95
91
88
91
93
94
96
96
98
96

Pressure (mb)

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

Ozone (du)

378
379
379
379
378
378
377
379
379
380
380
382
380
381
382
383
384
382
381
380
380
380
379
377

Monday 22

Waxing Crescent 12%

11:13

19:29

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
22 Bad

Sun - Rise: 08:45, Set: 16:02, Transit: 12:23. Moon - Rise: 11:13, Set: 19:29. Civil Dark: 16:46 - 08:00. Nautical Dark: 17:33 - 07:13. Astro Dark: 18:17 - 06:29

Total Clouds (% Sky Obscured)

90
91
93
95
96
97
98
99
99
100
100
99
98
98
98
98
98
98
99
99
99
99
100
100

Low Clouds (% Sky Obscured)

81
79
78
77
71
71
68
76
84
89
91
92
93
90
89
87
89
91
92
94
96
98
99
99

Medium Clouds (% Sky Obscured)

8
7
6
7
17
27
41
59
79
98
97
96
95
85
75
64
71
74
76
68
63
59
59
57

High Clouds (% Sky Obscured)

25
29
32
30
30
25
10
0
0
10
10
11
35
45
46
47
40
24
8
4
4
4
4
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
8
7
6
7
8
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 (%)

9
11
10
8
12
14
10
21
26
31
36
40
43
41
38
34
28
20
7
12
13
13
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)

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

Chance of Frost

Temperature (°C)

7
8
8
8
8
8
8
8
8
8
8
8
7
7
7
7
7
7
7
7
7
7
7
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
93
91
90
90
87
87
87
88
87
90
90
90
88
85
85
84
82
81
81
81
82
85

Pressure (mb)

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

Ozone (du)

374
372
371
371
371
373
376
379
381
384
386
385
383
382
378
375
372
369
366
363
365
366
368
367

Tuesday 23

Waxing Crescent 19%

11:25

20:52

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

Sun - Rise: 08:45, Set: 16:02, Transit: 12:24. Moon - Rise: 11:25, Set: 20:52. Civil Dark: 16:47 - 08:01. Nautical Dark: 17:34 - 07:14. Astro Dark: 18:18 - 06:30

Total Clouds (% Sky Obscured)

100
95
90
86
89
91
93
87
83
77
70
62
56
61
71
79
74
72
68

Low Clouds (% Sky Obscured)

100
90
80
69
75
83
89
84
79
74
65
55
46
51
56
62
53
45
34

Medium Clouds (% Sky Obscured)

55
44
34
29
34
37
34
35
29
21
20
20
20
21
22
24
19
14
7

High Clouds (% Sky Obscured)

17
25
38
45
26
17
7
4
2
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
8
7
8
9

Fog (%)

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

Precipitation Probability (%)

19
21
23
24
22
19
17
19
20
20
21
21
20
29
34
38
37
37
36

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
88
88
90
89
86
85
82
83
85
86
86
85
83
85
86
88
88
89

Pressure (mb)

1023
1023
1023
1024
1024
1024
1024
1024
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

367
367
367
368
368
372
376
381
384
387
390
387
385
383
384
384
385
386
387

Forecast for Knockmore, Lisburn and Castlereagh, United Kingdom (54.51,-6.07)

Generated: 17/12/25 22:58:54. Forecast: 17/12/25 to 23/12/25. Timezone: UTC+0.00