Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 5

Waning Gibbous 90%

18:59

10:23

10 OK
11 OK
12 OK
13 OK
14 Bad
15 OK
16 OK
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

Sun - Rise: 08:43, Set: 16:14, Transit: 12:29. Moon - Rise: 18:59, Set: 10:23. Civil Dark: 16:58 - 08:00. Nautical Dark: 17:44 - 07:13. Astro Dark: 18:28 - 06:30

Total Clouds (% Sky Obscured)

31
33
35
38
58
29
25
30
43
64
73
84
98
55
93
100
100
100
100
100
89
86
72
97

Low Clouds (% Sky Obscured)

26
30
34
38
58
21
25
14
28
42
56
29
7
26
64
63
64
66
63
51
52
45
24
60

Medium Clouds (% Sky Obscured)

3
3
3
0
0
2
3
14
18
55
54
68
97
17
4
61
46
100
100
100
88
86
67
96

High Clouds (% Sky Obscured)

0
2
0
0
0
0
0
2
10
60
8
40
50
27
92
100
100
100
100
92
60
35
3
6

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
1
0
9
0
0
3
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
8
11
13
8
5
4
3
3
2
2
2
6
18
43
26
7
1
1
1
14
8
2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

78
74
73
74
70
77
86
89
89
89
89
89
91
92
96
98
92
98
98
96
96
96
93
91

Pressure (mb)

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

Ozone (du)

380
382
382
381
379
376
378
378
369
362
358
354
351
352
351
350
351
351
349
350
350
350
354
355

Tuesday 6

Waning Gibbous 83%

20:29

10:36

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

Sun - Rise: 08:43, Set: 16:15, Transit: 12:29. Moon - Rise: 20:29, Set: 10:36. Civil Dark: 16:59 - 07:59. Nautical Dark: 17:45 - 07:13. Astro Dark: 18:29 - 06:30

Total Clouds (% Sky Obscured)

95
93
92
87
92
95
85
71
89
76
54
36
46
39
36
31
36
23
53
79
95
100
100
100

Low Clouds (% Sky Obscured)

92
88
85
85
90
94
84
66
84
72
54
36
44
37
34
27
34
23
23
13
3
12
1
1

Medium Clouds (% Sky Obscured)

38
30
16
2
20
3
0
5
40
0
0
0
0
0
0
2
1
23
53
79
95
100
100
100

High Clouds (% Sky Obscured)

5
3
3
31
2
0
0
0
0
0
1
2
2
2
2
1
0
0
2
8
15
37
48
95

ISS Passover

Visibility (miles)

9
0
0
0
0
1
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
Light Rain
None
None
None
None
None
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

44
65
39
14
13
24
10
23
66
25
3
3
4
0
1
2
2
0
1
0
0
0
0
0

Precipitation Amount (mm)

0
0.5
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
96
96
96
96
96
94
94
96
94
85
82
86
83
79
80
80
80
81
78
78
80
81
83

Pressure (mb)

1013
1012
1010
1009
1008
1007
1006
1006
1005
1005
1006
1006
1007
1007
1007
1008
1009
1010
1010
1010
1011
1011
1011
1011

Ozone (du)

356
353
356
356
358
362
362
363
364
365
366
371
368
365
365
360
353
343
331
322
315
306
303
301

Wednesday 7

Waning Gibbous 74%

21:53

10:45

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:42, Set: 16:17, Transit: 12:30. Moon - Rise: 21:53, Set: 10:45. Civil Dark: 17:00 - 07:59. Nautical Dark: 17:46 - 07:13. Astro Dark: 18:30 - 06:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
78
57
54
53
51
45
50
60
48
69
81
90
100
99

Low Clouds (% Sky Obscured)

1
6
10
22
63
82
88
100
95
100
69
57
54
53
51
42
50
56
37
43
41
39
38
39

Medium Clouds (% Sky Obscured)

93
92
100
100
100
100
100
100
69
89
53
6
0
0
0
1
1
2
2
7
21
17
35
29

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
100
35
35
21
2
2
2
35
30
35
59
73
85
100
98

ISS Passover

Visibility (miles)

9
9
9
9
9
9
0
0
0
0
1
3
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
3
4
26
67
84
92
86
67
7
2
3
3
3
3
4
2
2
2
2
2
2
3

Precipitation Amount (mm)

0
0
0
0
0
0.5
0.5
0.5
0.5
0.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
5
4
4
4
4
4
5
6
6
8
11
12
13
14
13
12
12
12
11
10
10
9

Chance of Frost

Temperature (°C)

2
2
2
2
3
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
2
2
2
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
83
79
77
79
83
96
98
100
98
100
98
89
89
88
85
83
88
88
89
91
93
94
94

Pressure (mb)

1011
1011
1010
1009
1008
1007
1007
1006
1005
1004
1003
1002
1002
1001
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002

Ozone (du)

305
303
297
298
295
295
300
306
309
310
314
317
318
320
326
327
326
328
320
320
329
327
326
327

Thursday 8

Waning Gibbous 64%

23:13

10:53

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:41, Set: 16:18, Transit: 12:30. Moon - Rise: 23:13, Set: 10:53. Civil Dark: 17:01 - 07:58. Nautical Dark: 17:48 - 07:12. Astro Dark: 18:31 - 06:29

Total Clouds (% Sky Obscured)

98
98
98
99
100
100
100
100
95
90
84
90
95
100
100
100
100
100
100
100
100
99
99
98

Low Clouds (% Sky Obscured)

41
42
38
37
38
42
49
56
55
55
55
55
57
56
59
59
51
24
22
24
27
32
36
36

Medium Clouds (% Sky Obscured)

32
36
43
51
65
76
88
99
90
80
72
69
69
72
82
91
100
100
100
100
100
99
99
98

High Clouds (% Sky Obscured)

96
93
96
98
100
100
100
100
81
63
44
63
83
100
89
79
71
70
52
35
30
40
55
55

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

2
1
2
4
7
11
24
28
37
54
77
65
49
39
23
10
4
3
0
0
1
1
0
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.2
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
91
89
88
89
91
93
94
98
98
96
96
93
89
88
83
77
81
81
80
77
77

Pressure (mb)

1002
1002
1001
1001
1000
999
998
997
996
995
994
993
993
993
993
993
994
994
995
995
995
996
997
998

Ozone (du)

324
326
325
327
327
327
331
333
337
341
345
349
361
358
370
369
374
380
377
377
381
397
394
385

Friday 9

Waning Gibbous 54%

00:31

11:00

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

Sun - Rise: 08:41, Set: 16:20, Transit: 12:31. Moon - Rise: 00:31, Set: 11:00. Civil Dark: 17:03 - 07:58. Nautical Dark: 17:49 - 07:12. Astro Dark: 18:32 - 06:28

Total Clouds (% Sky Obscured)

98
96
95
94
92
81
53
43
33
18
8
5
5
38
43
47
49
57
83
91
98
97
100
100

Low Clouds (% Sky Obscured)

35
35
36
40
38
31
27
25
16
9
3
3
3
9
7
4
3
2
1
1
8
16
24
44

Medium Clouds (% Sky Obscured)

98
95
71
90
74
76
17
4
11
2
2
3
3
38
43
26
5
18
33
51
72
85
97
98

High Clouds (% Sky Obscured)

55
60
55
25
26
21
1
0
2
3
1
0
0
0
18
38
49
57
71
81
91
96
100
100

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
2
2
1
2
2
1
3
3
1
2
2
4
10
8
1
5
4
0
1
1
1
20

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
68
66
69
68
65
70
81
84
86
88
92
96
94
94
94
96
96
96
96
94
94
91
89

Pressure (mb)

999
1000
1001
1001
1002
1003
1004
1005
1006
1006
1007
1007
1008
1008
1009
1009
1010
1010
1010
1010
1010
1009
1009
1008

Ozone (du)

382
384
383
386
387
389
384
382
383
384
387
385
381
376
375
375
376
376
372
368
364
360
355
351

Saturday 10

Third Quarter 44%

01:48

11:07

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
06 Bad
07 Bad
08 Bad
09 Bad

Sun - Rise: 08:40, Set: 16:21, Transit: 12:31. Moon - Rise: 01:48, Set: 11:07. Civil Dark: 17:04 - 07:57. Nautical Dark: 17:50 - 07:11. Astro Dark: 18:33 - 06:28

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
96
93
88
92
96
100
100
100
100
92
85
77
82

Low Clouds (% Sky Obscured)

65
86
88
92
95
97
99
100
93
88
80
80
77
71
67
70
74
75
76
78
77
77
74
79

Medium Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
98
92
86
80
84
89
93
95
96
95
77
59
42
28

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
67
33
10
10
10
35
63
82
100
100
100
100
67
33
0
3

ISS Passover

Visibility (miles)

8
6
5
3
2
0
3
5
7
5
3
0
1
1
1
4
7
9
9
8
8
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
None
Light Rain
Light Rain
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
Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

36
57
91
95
95
95
95
95
95
95
95
95
84
63
64
68
74
63
52
39
39
38
35
30

Precipitation Amount (mm)

0
0
0.5
0.7
0.8
1.1
1
0.6
0.8
1
0.9
0.7
0.4
0.2
0.3
0.4
0.5
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
10
12
14
17
17
19
20
17
15
13
13
13
13
13
14
15
14
14
14
14
13
13

Chance of Frost

Temperature (°C)

2
3
3
3
4
4
5
6
6
7
7
7
7
7
7
8
9
9
9
9
9
8
7
6

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
94
96
96
98
98
98
98
98
98
100
98
98
100
96
96
95
93
91
91
90
90
88

Pressure (mb)

1007
1006
1005
1003
1001
999
997
995
993
991
990
988
988
987
986
985
985
984
983
983
982
982
982
983

Ozone (du)

348
345
342
338
334
331
326
321
315
314
312
311
311
311
311
311
312
312
313
314
314
315
317
318

Sunday 11

Waning Crescent 35%

03:05

11:15

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: 08:39, Set: 16:23, Transit: 12:31. Moon - Rise: 03:05, Set: 11:15. Civil Dark: 17:06 - 07:56. Nautical Dark: 17:52 - 07:11. Astro Dark: 18:35 - 06:27

Total Clouds (% Sky Obscured)

88
94
91
87
85
85
85
89
90
89
87
77
67
61
64
75
82
73
64
54

Low Clouds (% Sky Obscured)

85
91
83
75
66
76
85
89
88
82
75
63
51
40
41
44
46
48
49
53

Medium Clouds (% Sky Obscured)

14
0
0
0
0
19
32
43
46
59
69
60
50
41
48
54
61
56
49
39

High Clouds (% Sky Obscured)

7
25
19
12
0
0
0
0
7
13
23
27
31
35
30
25
25
19
8
5

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

22
1
7
10
12
13
14
16
52
68
75
59
40
4
4
3
1
7
10
8

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
15
17
16
15
15
16
18
20
18
18
19
17
16
14
15
15
16
16
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
84
82
82
81
79
81
81
81
82
82
82
82
82
80
80
79
79
80
82

Pressure (mb)

983
983
983
982
982
981
981
980
980
981
983
984
985
986
987
988
988
989
989
989

Ozone (du)

318
317
317
319
321
323
327
331
335
330
325
321
319
317
315
314
314
313
315
316

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

Generated: 05/01/26 10:36:41. Forecast: 05/01/26 to 11/01/26. Timezone: UTC+0.00