Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 8

Waning Gibbous 77%

20:01

12:04

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:34, Set: 15:58, Transit: 12:15. Moon - Rise: 20:01, Set: 12:04. Civil Dark: 16:42 - 07:50. Nautical Dark: 17:29 - 07:03. Astro Dark: 18:12 - 06:19

Total Clouds (% Sky Obscured)

53
53
47
64
45
34
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
99
100

Low Clouds (% Sky Obscured)

39
35
37
41
37
27
30
28
24
18
17
57
54
82
93
88
94
92
94
91
92
93
98
82

Medium Clouds (% Sky Obscured)

13
5
4
35
2
3
0
70
99
85
89
100
100
100
100
100
100
100
100
100
93
91
96
42

High Clouds (% Sky Obscured)

18
7
9
3
0
0
100
100
86
100
100
100
100
100
100
100
100
100
100
100
100
100
88
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
1
2
1
0
2
2
6
9
8
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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Light Rain
None
None
None
None

Precipitation Probability (%)

6
58
0
0
1
0
0
0
0
0
0
8
60
92
95
95
95
95
95
95
48
21
13
11

Precipitation Amount (mm)

0
0.6
0
0
0
0
0
0
0
0
0
0
0
0.3
0.8
1.5
2.1
2.3
3.4
1.2
0
0
0
0

Wind Speed/Direction (mph)

14
12
11
11
9
7
7
6
6
5
5
5
5
8
11
15
18
19
19
18
16
16
18
20

Chance of Frost

Temperature (°C)

9
9
9
9
8
8
8
8
8
8
8
8
9
9
10
11
11
11
11
12
13
13
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
82
84
85
90
91
93
94
94
95
95
95
96
98
96
96
96
96
95
95
93
92
90
87

Pressure (mb)

998
999
999
999
1000
1000
1000
1000
1001
1001
1000
999
999
997
995
993
991
988
986
984
983
983
981
980

Ozone (du)

346
341
333
336
340
347
348
346
340
329
322
321
317
307
300
296
298
300
302
300
299
299
297
296

Tuesday 9

Waning Gibbous 67%

21:31

12:20

12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 OK
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

Sun - Rise: 08:35, Set: 15:58, Transit: 12:16. Moon - Rise: 21:31, Set: 12:20. Civil Dark: 16:42 - 07:51. Nautical Dark: 17:29 - 07:04. Astro Dark: 18:12 - 06:20

Total Clouds (% Sky Obscured)

97
100
100
82
49
35
36
49
64
51
57
53
51
59
54
67
58
63
55
64
84
96
67
69

Low Clouds (% Sky Obscured)

97
100
100
72
48
35
36
49
63
47
57
51
51
53
52
67
58
62
55
52
67
56
66
69

Medium Clouds (% Sky Obscured)

30
23
24
27
0
1
2
0
0
0
0
0
0
0
0
0
0
0
0
4
19
30
0
69

High Clouds (% Sky Obscured)

42
40
2
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 (%)

22
28
18
10
2
0
0
0
0
5
0
0
0
0
0
0
1
6
16
3
3
4
2
2

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)

23
24
27
25
26
25
24
24
23
23
22
22
21
20
20
20
20
20
20
19
20
20
20
21

Chance of Frost

Temperature (°C)

14
14
14
12
11
10
10
9
9
9
8
8
8
8
8
8
8
8
8
8
8
8
9
9

Feels Like (°C)

8
6
6
4
4
4
4
4
3
3
1
2
3
2
4
3
3
2
2
2
3
2
3
3

Dew Point (°C)

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

Relative Humidity (%)

82
79
79
79
78
80
80
82
81
77
73
79
78
77
82
82
82
79
79
75
81
81
77
72

Pressure (mb)

979
980
981
984
986
988
990
991
992
993
994
995
996
996
997
998
998
999
999
1000
1001
1002
1003
1004

Ozone (du)

296
293
294
295
301
302
304
305
307
311
314
315
319
321
319
322
327
335
344
339
339
337
336
328

Wednesday 10

Waning Gibbous 56%

22:55

12:30

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

Sun - Rise: 08:36, Set: 15:58, Transit: 12:16. Moon - Rise: 22:55, Set: 12:30. Civil Dark: 16:42 - 07:52. Nautical Dark: 17:28 - 07:05. Astro Dark: 18:12 - 06:21

Total Clouds (% Sky Obscured)

71
57
35
22
53
91
80
70
75
76
87
59
36
42
57
99
60
99
99
100
97
98
80
75

Low Clouds (% Sky Obscured)

57
47
33
21
29
35
35
54
58
40
41
39
35
40
50
49
51
60
57
54
51
45
40
34

Medium Clouds (% Sky Obscured)

71
57
4
4
5
11
32
70
75
32
59
28
0
0
0
0
0
0
2
5
7
6
3
0

High Clouds (% Sky Obscured)

0
0
2
2
53
88
60
60
11
68
73
35
5
11
27
98
39
97
98
99
95
97
75
75

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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
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)

21
21
21
20
18
16
14
13
14
14
14
13
12
11
10
10
11
11
10
10
11
11
12
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
76
77
78
81
82
79
78
81
81
82
82
85
88
90
91
91
87
84
88
91
93
88
77

Pressure (mb)

1005
1006
1007
1008
1008
1010
1010
1011
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1010
1010
1009
1009
1008

Ozone (du)

327
323
320
320
318
312
308
304
304
304
303
304
305
306
310
311
309
309
310
310
306
305
303
303

Thursday 11

Third Quarter 46%

00:15

12:38

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
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad
11 OK

Sun - Rise: 08:37, Set: 15:57, Transit: 12:17. Moon - Rise: 00:15, Set: 12:38. Civil Dark: 16:42 - 07:53. Nautical Dark: 17:28 - 07:06. Astro Dark: 18:12 - 06:22

Total Clouds (% Sky Obscured)

85
86
100
100
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
80
63
35

Low Clouds (% Sky Obscured)

29
29
28
38
49
50
56
68
71
74
65
80
69
55
68
56
48
36
24
14
1
0
0
0

Medium Clouds (% Sky Obscured)

27
57
81
80
80
80
84
96
80
95
75
65
67
62
100
100
100
86
100
100
96
80
7
0

High Clouds (% Sky Obscured)

75
70
78
75
70
100
100
67
100
100
100
100
100
100
100
63
62
100
100
100
100
80
63
35

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
5
6
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None

Precipitation Probability (%)

3
4
14
15
10
10
35
44
53
95
95
85
95
95
95
95
95
95
77
54
27
13
4
3

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.7
0.8
0.5
0.7
0.8
0.8
0.9
0.8
0.8
0.4
0
0
0
0
0

Wind Speed/Direction (mph)

16
15
15
14
14
14
14
14
15
15
14
13
10
7
6
7
6
4
4
4
4
4
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
81
78
78
78
82
85
81
84
85
84
88
90
91
93
91
88
85
85
83
85
88
88
88

Pressure (mb)

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

Ozone (du)

304
306
309
310
306
303
302
304
307
312
315
318
320
321
324
325
326
328
329
328
327
326
327
327

Friday 12

Waning Crescent 36%

01:31

12:45

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

Sun - Rise: 08:38, Set: 15:57, Transit: 12:17. Moon - Rise: 01:31, Set: 12:45. Civil Dark: 16:42 - 07:54. Nautical Dark: 17:28 - 07:07. Astro Dark: 18:12 - 06:23

Total Clouds (% Sky Obscured)

38
38
43
58
55
69
64
57
56
47
36
27
30
31
34
42
72
83
93
89
91
93
87
85

Low Clouds (% Sky Obscured)

7
14
20
26
31
35
34
30
30
25
19
16
23
30
34
39
37
30
22
12
0
32
63
85

Medium Clouds (% Sky Obscured)

0
0
0
5
14
21
16
9
4
5
0
0
1
1
1
8
17
28
48
55
63
51
26
15

High Clouds (% Sky Obscured)

38
38
43
43
8
12
8
4
0
0
0
0
0
0
0
3
6
9
7
3
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 (%)

1
0
0
2
5
7
19
15
9
7
2
0
1
1
0
4
2
0
6
4
4
18
22
21

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
85
87
90
90
90
90
90
90
86
88
93
91
93
93
93
93
93
93
93
93
93
91
88

Pressure (mb)

1005
1005
1004
1004
1005
1005
1005
1005
1005
1006
1006
1007
1007
1007
1008
1008
1008
1008
1009
1009
1009
1009
1009
1008

Ozone (du)

327
325
324
324
325
329
333
344
354
364
376
375
380
387
395
402
406
411
416
420
425
430
425
420

Saturday 13

Waning Crescent 27%

02:47

12:52

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

Sun - Rise: 08:39, Set: 15:57, Transit: 12:18. Moon - Rise: 02:47, Set: 12:52. Civil Dark: 16:42 - 07:55. Nautical Dark: 17:29 - 07:08. Astro Dark: 18:12 - 06:24

Total Clouds (% Sky Obscured)

87
88
90
91
91
94
96
97
100
100
100
100
100
100
100
100
100
99
100
100
100
80
63
45

Low Clouds (% Sky Obscured)

87
88
90
91
85
86
85
84
88
88
90
91
92
96
100
98
95
93
70
47
32
29
26
15

Medium Clouds (% Sky Obscured)

18
23
32
33
35
39
59
79
96
97
99
100
98
97
95
92
92
94
76
55
30
25
24
24

High Clouds (% Sky Obscured)

17
34
54
41
28
9
29
52
77
84
92
96
97
98
100
81
52
13
39
69
100
70
43
35

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
8
7
6
5
5
5
6
8
9
9
9
9
8
7
5
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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None

Precipitation Probability (%)

24
21
17
28
25
20
29
34
46
59
65
67
70
59
46
45
40
41
86
95
95
95
79
46

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.3
0.3
0.4
0.2
0
0
0
0
0.5
0.9
1.1
0.8
0.4
0

Wind Speed/Direction (mph)

13
12
13
13
13
14
14
15
16
17
17
18
18
19
20
22
22
23
24
21
19
17
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
88
88
90
88
90
90
88
90
90
91
95
91
91
91
91
90
92
90
90
88
87
85

Pressure (mb)

1008
1007
1007
1006
1006
1006
1006
1006
1006
1006
1005
1004
1003
1002
1001
1000
999
998
997
997
998
998
999
999

Ozone (du)

415
405
394
383
370
357
345
339
333
328
329
331
333
330
327
324
321
318
314
310
305
301
301
301

Sunday 14

Waning Crescent 19%

04:03

12:59

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 OK
03 OK
04 OK
05 Bad

Sun - Rise: 08:40, Set: 15:57, Transit: 12:18. Moon - Rise: 04:03, Set: 12:59. Civil Dark: 16:42 - 07:56. Nautical Dark: 17:29 - 07:09. Astro Dark: 18:13 - 06:25

Total Clouds (% Sky Obscured)

55
55
60
72
82
95
91
88
86
82
77
68
56
35
20
27
31
37

Low Clouds (% Sky Obscured)

10
6
1
7
13
18
22
26
30
33
39
42
44
35
20
27
31
35

Medium Clouds (% Sky Obscured)

24
25
30
52
67
74
66
59
55
51
48
44
29
15
0
12
20
25

High Clouds (% Sky Obscured)

40
50
50
40
40
40
27
24
24
38
51
65
47
25
0
25
31
37

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

37
24
3
2
1
0
1
2
1
30
34
31
31
22
0
4
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

15
14
13
13
13
13
13
13
14
14
14
14
14
14
14
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
85
85
88
88
90
90
90
91
90
91
91
91
91
93
91
93

Pressure (mb)

1000
1000
1000
1001
1001
1001
1001
1001
1001
1001
1001
1001
1001
1002
1002
1002
1002
1001

Ozone (du)

301
302
303
304
306
308
310
313
316
319
323
327
332
338
345
352
354
355

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

Generated: 08/12/25 12:04:47. Forecast: 08/12/25 to 14/12/25. Timezone: UTC+0.00