Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 5

Waning Gibbous 96%

18:59

10:23

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

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

Total Clouds (% Sky Obscured)

18
24
22
49
26
48
49
22
24
34
30
30
35
68
66
37
41
51
68
77
85
92
77
53

Low Clouds (% Sky Obscured)

18
24
22
24
22
27
20
20
23
30
30
27
34
68
66
32
24
33
63
36
50
51
30
29

Medium Clouds (% Sky Obscured)

18
2
22
45
4
32
44
2
2
3
0
0
0
0
0
3
13
30
40
75
84
81
45
17

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
8
20
12
6
60
26
23

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
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 (%)

2
8
14
11
9
16
5
6
5
2
4
5
13
7
5
5
2
2
1
2
5
26
28
28

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
78
84
83
84
87
87
78
80
77
71
69
70
72
71
80
84
88
88
86
86
87
91
94

Pressure (mb)

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

Ozone (du)

381
382
381
378
383
388
387
385
388
387
385
383
380
378
378
379
374
365
365
363
358
355
355
356

Tuesday 6

Waning Gibbous 90%

20:29

10:36

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
23 OK
00 Bad

Sun - Rise: 08:43, Set: 16:15, Transit: 12:29. Moon - Rise: 20:29, Set: 10:36. Civil Dark: 16:59 - 08:00. Nautical Dark: 17:45 - 07:13. Astro Dark: 18:29 - 06:30

Total Clouds (% Sky Obscured)

82
100
100
100
98
98
87
68
71
92
98
97
97
100
96
77
63
61
90
69
71
76
35
79

Low Clouds (% Sky Obscured)

59
46
46
51
53
53
64
37
44
66
86
77
95
100
92
77
63
61
74
61
45
51
28
39

Medium Clouds (% Sky Obscured)

2
24
48
89
96
96
70
62
64
66
62
72
50
33
13
0
0
0
22
0
16
58
7
51

High Clouds (% Sky Obscured)

69
100
75
100
48
30
25
3
2
1
2
2
1
0
11
1
0
35
28
40
15
1
1
0

ISS Passover

Visibility (miles)

0
0
3
0
3
0
9
9
9
9
9
1
0
7
8
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
None
None
None
None
None
None
None
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

29
5
2
3
21
5
1
0
30
10
21
19
23
33
55
40
28
30
13
4
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
96
98
98
98
96
91
89
91
93
96
96
94
94
93
94
96
91
82
80
77
77
77

Pressure (mb)

1019
1019
1019
1018
1017
1017
1016
1015
1015
1014
1013
1011
1010
1009
1008
1008
1008
1008
1008
1009
1009
1010
1010
1011

Ozone (du)

356
355
352
351
351
350
352
351
347
347
347
350
354
353
353
355
354
353
355
364
363
360
357
352

Wednesday 7

Waning Gibbous 83%

21:53

10:45

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
23 Bad
00 Bad

Sun - Rise: 08:43, 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 - 06:30

Total Clouds (% Sky Obscured)

86
88
98
100
100
100
100
100
100
100
100
100
100
100
100
99
90
94
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

25
26
20
26
23
61
69
70
81
100
100
100
78
69
72
75
69
48
26
3
16
28
41
45

Medium Clouds (% Sky Obscured)

86
47
98
99
100
100
100
100
100
100
99
100
100
100
100
80
69
76
86
67
65
60
67
75

High Clouds (% Sky Obscured)

0
13
2
48
69
43
100
70
83
79
90
100
100
100
100
91
45
64
80
100
100
100
100
100

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
0
0
0
2
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
Sleet
Very Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
1
22
72
60
43
45
17
5
2
6
36
51
33
10
5
4
2
2
4
3

Precipitation Amount (mm)

0
0
0
0
0
0
0.4
0.2
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
85
88
88
88
89
89
88
88
88
83
82
82
86
94
98
98
98
98
94
96
91
88
91

Pressure (mb)

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

Ozone (du)

344
337
330
323
314
307
300
298
297
297
296
291
294
296
298
303
307
310
312
313
314
314
316
317

Thursday 8

Waning Gibbous 74%

23:13

10:53

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
23 Bad
00 Bad

Sun - Rise: 08:42, Set: 16:18, Transit: 12:30. Moon - Rise: 23:13, Set: 10:53. Civil Dark: 17:01 - 07:59. Nautical Dark: 17:48 - 07:13. Astro Dark: 18:31 - 06:29

Total Clouds (% Sky Obscured)

100
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)

46
50
50
48
45
43
30
22
37
56
69
81
90
98
100
100
100
85
69
53
56
59
62
65

Medium Clouds (% Sky Obscured)

86
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
45

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
4
0
0
0
0
0
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
None
None
None
None
None
Very 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
Snow

Precipitation Probability (%)

4
2
1
1
2
2
2
1
12
16
20
63
83
93
95
95
95
95
95
95
90
77
64
61

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.6
0.9
1.1
1.3
1
0.8
0.7
0.5
0.3
0.2
0.3

Wind Speed/Direction (mph)

8
7
7
6
5
4
3
3
3
1
2
4
4
6
6
9
10
11
10
9
9
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
91
93
94
94
94
94
94
91
91
93
94
94
96
96
96
98
98
98
98
98
98
100

Pressure (mb)

1007
1007
1007
1007
1006
1006
1005
1004
1004
1003
1001
1000
998
997
995
994
993
992
992
992
992
992
993
993

Ozone (du)

321
326
324
321
321
325
326
329
329
329
330
330
332
333
335
336
338
345
352
359
367
367
380
378

Friday 9

Waning Gibbous 64%

00:31

11:00

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
23 OK
00 OK

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 - 06:29

Total Clouds (% Sky Obscured)

100
100
100
100
100
87
77
66
61
54
36
43
51
58
64
68
73
67
61
56
47
36
26
32

Low Clouds (% Sky Obscured)

68
73
76
79
82
82
77
66
61
54
35
35
39
47
48
49
46
48
53
56
46
36
26
30

Medium Clouds (% Sky Obscured)

100
100
100
100
97
42
36
30
10
6
7
16
27
41
48
53
58
41
30
19
14
10
1
2

High Clouds (% Sky Obscured)

45
55
47
36
23
15
8
0
0
0
0
1
1
1
1
1
1
0
0
0
1
2
4
14

ISS Passover

Visibility (miles)

0
0
0
0
0
1
2
1
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

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

Precipitation Probability (%)

59
47
45
50
29
24
20
7
5
12
5
22
28
31
29
25
17
21
19
7
6
4
2
4

Precipitation Amount (mm)

0.3
0.2
0.1
0.2
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
9
10
10
11
12
12
11
11
12
12
13
13
13
13
12
12
11
11
10
10
9
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
100
100
98
96
96
96
96
93
88
88
86
85
83
82
83
85
86
88
89
91
93
91
91

Pressure (mb)

993
993
994
995
995
996
997
998
999
1000
1001
1001
1002
1003
1003
1004
1005
1006
1007
1008
1009
1010
1011
1011

Ozone (du)

379
384
388
390
390
394
387
392
404
407
403
404
403
403
403
399
395
390
388
385
383
379
376
373

Saturday 10

Third Quarter 54%

No Rise

11:07

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
23 Bad
00 Bad

Sun - Rise: 08:41, Set: 16:21, Transit: 12:31. Moon - Rise: No Rise, Set: 11:07. Civil Dark: 17:04 - 07:58. Nautical Dark: 17:50 - 07:12. Astro Dark: 18:33 - 06:28

Total Clouds (% Sky Obscured)

38
45
57
70
80
84
90
93
95
96
96
98
99
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

33
35
41
39
43
42
44
46
47
44
34
13
4
0
25
51
76
82
88
94
96
97
98
97

Medium Clouds (% Sky Obscured)

3
3
21
38
53
67
79
92
93
95
96
98
99
100
100
100
100
100
100
99
98
97
96
95

High Clouds (% Sky Obscured)

25
30
30
25
10
7
15
25
25
25
41
65
83
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

4
3
3
1
0
1
4
8
35
51
63
61
54
42
39
42
47
69
79
81
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.3
0
0
0
0
0
0.3
0.4
0.3
0.6
0.8
0.8
1

Wind Speed/Direction (mph)

7
7
7
6
6
6
5
5
5
5
6
7
7
8
8
10
10
12
14
15
17
18
19
20

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
92
91
91
91
91
88
91
93
94
93
93
91
91
93
93
93
93
93
94
93
93

Pressure (mb)

1012
1012
1012
1012
1012
1012
1012
1012
1011
1010
1010
1009
1007
1006
1005
1003
1001
1000
998
995
993
991
989
988

Ozone (du)

368
364
359
353
347
341
338
334
331
328
325
321
317
314
310
307
305
302
300
299
298
298
299
299

Sunday 11

Waning Crescent 44%

01:48

11:15

Sun - Rise: 08:40, Set: 16:23, Transit: 12:31. Moon - Rise: 01:48, Set: 11:15. Civil Dark: 17:06 - 07:57. Nautical Dark: 17:52 - 07:11. Astro Dark: 18:35 - 06:28

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

Generated: 05/01/26 00:44:46. Forecast: 05/01/26 to 11/01/26. Timezone: UTC+0.00