Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 19

Waning Crescent 0%

09:54

14:41

13 OK
14 OK
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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:43, Set: 15:58, Transit: 12:21. Moon - Rise: 09:54, Set: 14:41. Civil Dark: 16:43 - 07:59. Nautical Dark: 17:30 - 07:12. Astro Dark: 18:14 - 06:28

Total Clouds (% Sky Obscured)

29
35
61
81
83
51
72
77
64
96
100
100
95
81
87
66
62
64
63
65
53
51
75
78

Low Clouds (% Sky Obscured)

29
35
61
39
32
37
55
59
61
65
58
40
24
23
22
25
29
36
37
44
49
48
70
72

Medium Clouds (% Sky Obscured)

0
0
3
0
24
10
22
21
8
38
24
28
31
24
29
16
21
0
6
12
0
0
0
0

High Clouds (% Sky Obscured)

0
2
3
53
64
6
5
55
60
66
100
100
85
61
67
47
16
64
26
22
3
4
19
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
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
None
None
None

Precipitation Probability (%)

4
6
3
5
0
0
0
5
0
0
0
0
0
0
3
6
7
7
9
14
15
24
25
26

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)

14
13
13
12
11
11
10
9
8
7
6
5
6
5
6
6
7
8
9
10
12
14
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
79
78
82
87
90
91
90
85
85
86
91
93
93
93
93
93
91
90
90
90
84
84
84

Pressure (mb)

1007
1007
1008
1008
1008
1009
1009
1009
1009
1009
1009
1008
1008
1007
1006
1005
1005
1004
1004
1003
1003
1003
1003
1002

Ozone (du)

275
274
275
281
281
284
281
281
282
280
281
282
280
282
283
284
288
290
299
300
298
293
294
294

Saturday 20

New Moon 0%

10:31

15:36

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:44, Set: 15:59, Transit: 12:22. Moon - Rise: 10:31, Set: 15:36. Civil Dark: 16:44 - 07:59. Nautical Dark: 17:31 - 07:12. Astro Dark: 18:15 - 06:28

Total Clouds (% Sky Obscured)

86
71
88
100
100
100
100
100
100
100
100
97
93
100
100
100
100
100
96
77
81
99
100
100

Low Clouds (% Sky Obscured)

66
70
62
52
60
70
73
66
74
76
91
86
86
96
94
100
100
92
86
77
63
88
93
92

Medium Clouds (% Sky Obscured)

0
0
17
65
100
98
96
96
100
97
95
92
85
99
99
51
47
100
15
1
17
81
94
100

High Clouds (% Sky Obscured)

60
12
41
98
73
74
90
100
100
97
100
75
37
51
35
100
100
35
35
40
32
32
92
68

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
4
2
3
9
8
6
4
5
5
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
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

22
15
9
6
15
36
57
95
95
84
42
55
86
95
81
54
33
28
19
13
24
12
17
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.7
0.9
0.5
0
0.2
0.6
0.7
0.5
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

9
9
9
9
8
8
8
8
8
8
7
7
7
7
7
7
8
8
8
8
8
8
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
82
81
80
77
78
81
87
91
93
91
88
93
93
93
93
94
94
90
85
85
84
87
88

Pressure (mb)

1001
1001
1000
1000
1000
1000
1000
1000
1000
1000
999
1000
1000
1000
1001
1001
1001
1002
1002
1003
1004
1004
1005
1005

Ozone (du)

299
303
303
303
305
311
324
334
337
340
339
341
342
347
354
357
363
370
374
374
377
379
386
387

Sunday 21

Waxing Crescent 2%

10:56

16:46

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:44, Set: 15:59, Transit: 12:22. Moon - Rise: 10:56, Set: 16:46. Civil Dark: 16:44 - 08:00. Nautical Dark: 17:31 - 07:13. Astro Dark: 18:15 - 06:29

Total Clouds (% Sky Obscured)

96
99
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

90
97
100
98
93
92
100
99
90
89
79
86
96
100
66
61
65
76
85
95
90
86
80
84

Medium Clouds (% Sky Obscured)

96
96
100
99
67
82
100
100
99
83
100
100
100
100
100
96
79
84
84
79
85
93
100
90

High Clouds (% Sky Obscured)

46
45
40
84
92
100
100
100
100
100
100
100
100
100
100
98
89
81
58
36
34
54
100
84

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

25
33
46
61
78
81
81
68
35
49
49
53
49
52
43
37
31
28
31
28
28
30
49
56

Precipitation Amount (mm)

0
0
0
0.3
0.6
0.6
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8
8

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
93
95
96
95
93
95
95
95
95
96
95
95
95
98
96
95
93
93
93
93
90
91

Pressure (mb)

1004
1004
1005
1005
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1003
1003
1003
1004
1004
1005
1005
1005
1005

Ozone (du)

386
386
384
383
379
378
379
378
379
380
382
384
387
391
396
399
399
401
403
407
408
411
412
413

Monday 22

Waxing Crescent 6%

11:13

18:05

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:45, Set: 16:00, Transit: 12:23. Moon - Rise: 11:13, Set: 18:05. Civil Dark: 16:45 - 08:00. Nautical Dark: 17:32 - 07:13. Astro Dark: 18:16 - 06:29

Total Clouds (% Sky Obscured)

98
98
98
99
99
99
100
100
93
75
70
67
65
84
81
90
92
75
71
63
64
63
96
72

Low Clouds (% Sky Obscured)

87
91
92
93
92
88
78
55
53
43
41
39
39
50
71
84
91
75
71
63
64
63
61
63

Medium Clouds (% Sky Obscured)

79
70
66
62
58
69
80
91
72
54
42
39
34
21
20
21
16
13
9
7
5
7
10
14

High Clouds (% Sky Obscured)

69
51
64
79
92
95
97
100
89
55
45
37
25
48
7
6
3
5
10
3
5
11
55
9

ISS Passover

Visibility (miles)

7
6
9
9
9
9
8
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 (%)

46
37
21
22
18
27
20
11
10
9
5
5
6
5
7
5
1
5
6
5
12
14
15
17

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
91
91
93
91
90
87
87
88
90
90
91
91
91
91
91
90
88
90
90
91
93
88
87

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1007
1007
1008
1008
1009
1009
1009
1010
1010
1011
1011
1012
1013
1014
1014
1015
1016

Ozone (du)

413
413
411
411
409
407
406
406
406
406
404
402
386
375
373
371
369
364
361
361
361
362
362
365

Tuesday 23

Waxing Crescent 12%

11:25

19:28

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:45, Set: 16:01, Transit: 12:23. Moon - Rise: 11:25, Set: 19:28. Civil Dark: 16:45 - 08:00. Nautical Dark: 17:32 - 07:13. Astro Dark: 18:16 - 06:29

Total Clouds (% Sky Obscured)

81
91
100
98
92
89
90
79
72
84
97
97
97
97
85
58
40
36
46
49
48
52
54
56

Low Clouds (% Sky Obscured)

64
60
54
48
45
40
35
34
32
49
57
65
71
74
63
52
40
36
43
44
46
48
50
50

Medium Clouds (% Sky Obscured)

22
31
41
57
60
59
54
51
48
39
35
28
22
12
8
5
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

13
35
72
76
78
56
42
12
8
17
37
35
28
25
23
17
10
5
3
1
1
1
1
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 (%)

18
19
18
16
14
18
20
16
18
13
7
17
19
18
18
17
17
20
23
24
22
19
15
16

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

5
5
5
5
5
5
5
5
5
5
4
4
5
5
5
5
5
5
5
5
5
5
5
5

Relative Humidity (%)

85
87
90
93
94
94
94
94
94
94
93
93
93
93
93
93
93
94
93
91
93
90
85
82

Pressure (mb)

1016
1016
1017
1018
1019
1020
1021
1021
1022
1023
1023
1024
1025
1025
1026
1027
1027
1028
1029
1029
1030
1031
1031
1031

Ozone (du)

364
364
364
366
365
366
365
362
361
362
361
357
356
355
354
354
355
355
355
354
354
355
356
357

Wednesday 24

Waxing Crescent 19%

11:34

20:51

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad

Sun - Rise: 08:45, Set: 16:01, Transit: 12:24. Moon - Rise: 11:34, Set: 20:51. Civil Dark: 16:46 - 08:01. Nautical Dark: 17:33 - 07:14. Astro Dark: 18:17 - 06:30

Total Clouds (% Sky Obscured)

58
60
68
77
83
78
79
76
80
76
72
73
76
80
85
90
100
99
99
98
97
96
94
92

Low Clouds (% Sky Obscured)

52
54
61
70
74
72
71
66
67
62
53
42
41
43
58
73
88
86
85
85
85
85
84
86

Medium Clouds (% Sky Obscured)

0
0
1
1
3
2
2
0
0
0
0
0
0
0
13
33
55
58
61
63
65
62
59
58

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

16
16
17
16
12
13
12
5
11
10
5
9
9
5
27
37
45
51
56
61
63
62
61
60

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
86
86
88
88
85
83
82
80
80
79
80
80
80
80
79
80
76
75
73
71
71
69

Pressure (mb)

1032
1032
1032
1032
1033
1033
1033
1033
1033
1033
1033
1032
1032
1032
1032
1031
1031
1031
1031
1031
1031
1031
1031
1030

Ozone (du)

356
355
354
354
354
354
352
350
348
345
341
338
335
331
328
322
316
311
309
308
306
303
300
297

Thursday 25

Waxing Crescent 28%

11:42

22:13

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: 08:46, Set: 16:02, Transit: 12:24. Moon - Rise: 11:42, Set: 22:13. Civil Dark: 16:47 - 08:01. Nautical Dark: 17:34 - 07:14. Astro Dark: 18:18 - 06:30

Total Clouds (% Sky Obscured)

88
84
83
83
85
92
96
100
100
100
100
99
99
99
99
100
100

Low Clouds (% Sky Obscured)

88
84
83
83
85
86
85
85
83
87
86
87
86
82
83
85
87

Medium Clouds (% Sky Obscured)

58
53
44
39
38
51
67
79
85
90
96
96
96
97
98
99
100

High Clouds (% Sky Obscured)

30
36
25
22
19
10
5
1
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

Fog (%)

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

Precipitation Probability (%)

59
59
55
48
40
38
32
23
29
37
44
43
43
43
38
35
32

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

1
2
3
3
3
2
3
2
2
2
2
2
2
1
2
2
3

Relative Humidity (%)

72
76
81
82
83
83
85
85
85
83
85
85
85
83
83
85
88

Pressure (mb)

1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1029

Ozone (du)

297
297
298
297
296
295
295
294
294
293
293
293
293
293
293
295
296

Forecast for Cathedral's Quarter, Belfast, United Kingdom (54.60,-5.93)

Generated: 19/12/25 12:20:26. Forecast: 19/12/25 to 25/12/25. Timezone: UTC+0.00