Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 30

Waxing Gibbous 94%

13:18

06:16

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:33, Set: 16:45, Transit: 12:09. Moon - Rise: 13:18, Set: 06:16. Civil Dark: 17:21 - 06:57. Nautical Dark: 18:00 - 06:18. Astro Dark: 18:38 - 05:38

Total Clouds (% Sky Obscured)

99
100
99
99
99
100
99
98
99
100
100
100
99
96
94
96
95
95
98
98
98
96
95
96

Low Clouds (% Sky Obscured)

81
81
81
81
80
80
88
90
86
91
100
100
97
90
88
82
82
82
84
98
98
95
94
95

Medium Clouds (% Sky Obscured)

96
95
89
95
93
99
93
86
88
80
84
82
90
85
82
83
73
73
93
79
72
69
53
67

High Clouds (% Sky Obscured)

86
83
60
63
66
66
69
65
67
71
79
40
38
7
6
9
17
17
16
13
21
26
44
44

ISS Passover

Visibility (miles)

3
4
4
3
9
9
9
8
8
6
5
4
3
1
3
4
5
4
5
6
8
9
9
9

Fog (%)

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

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 (%)

0
0
0
17
12
8
5
3
6
16
10
13
27
26
24
17
13
20
7
4
8
6
5
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
86
84
83
84
83
86
87
91
92
91
91
89
89
91
91
89
87
84
87
87

Pressure (mb)

1004
1004
1004
1005
1005
1005
1005
1004
1004
1005
1005
1005
1005
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

446
446
456
451
442
439
433
422
416
415
414
409
412
414
412
411
410
409
408
410
404
402
399
399

Saturday 31

Waxing Gibbous 99%

14:41

07:03

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:31, Set: 16:47, Transit: 12:09. Moon - Rise: 14:41, Set: 07:03. Civil Dark: 17:22 - 06:56. Nautical Dark: 18:02 - 06:17. Astro Dark: 18:40 - 05:37

Total Clouds (% Sky Obscured)

97
97
98
99
99
99
100
99
96
93
84
70
70
69
68
66
58
65
69
71
70
65
74
77

Low Clouds (% Sky Obscured)

92
91
95
97
97
96
99
97
96
93
84
70
70
69
68
66
58
65
69
71
70
65
74
77

Medium Clouds (% Sky Obscured)

70
91
79
69
54
62
66
55
40
30
31
26
29
31
61
18
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

77
53
36
47
58
57
50
28
5
3
20
10
11
7
25
14
1
1
40
43
51
49
53
43

ISS Passover

Visibility (miles)

9
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8

Fog (%)

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

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

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

Chance of Frost

Temperature (°C)

-4
-4
-4
-4
-4
-3
-3
-3
-3
-3
-4
-5
-5
-5
-5
-6
-6
-6
-7
-7
-7
-7
-7
-8

Feels Like (°C)

-8
-9
-9
-9
-8
-8
-8
-7
-8
-8
-8
-9
-8
-9
-9
-9
-9
-9
-9
-10
-10
-10
-10
-11

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
85
82
79
79
79
79
81
84
84
82
81
79
82
82
82
84
83
85
85
87
87

Pressure (mb)

1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1011
1012
1013
1013
1014
1014
1015
1015
1015
1015
1016
1016
1016
1016

Ozone (du)

398
397
396
397
396
395
396
401
402
405
404
401
401
400
399
400
401
400
399
400
402
404
404
406

Sunday 1

Full Moon 100%

16:10

07:35

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
01 OK
02 OK
03 OK
04 Bad
05 Bad

Sun - Rise: 07:30, Set: 16:49, Transit: 12:09. Moon - Rise: 16:10, Set: 07:35. Civil Dark: 17:24 - 06:55. Nautical Dark: 18:03 - 06:15. Astro Dark: 18:41 - 05:36

Total Clouds (% Sky Obscured)

72
77
72
77
84
76
70
69
62
64
65
65
57
60
49
51
50
50
51
45
46
46
47
47

Low Clouds (% Sky Obscured)

72
77
72
77
84
76
70
69
62
64
65
65
57
60
49
51
50
50
51
45
46
46
46
47

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
6
7
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

5
4
57
29
11
6
3
4
3
5
0
0
4
4
0
0
0
0
0
10
24
46
38
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
1
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
7
8
3
0
0
1
0
0
0
0
0
0
3
0
0
0
1
0
0
0
0
6
4

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-10
-10
-11
-10
-9
-9
-8
-8
-8
-7
-8
-9
-9
-10
-10
-10
-10
-10
-11
-10
-10
-11
-11
-11

Dew Point (°C)

-9
-10
-10
-11
-11
-10
-10
-10
-9
-9
-9
-9
-10
-10
-11
-11
-11
-11
-11
-11
-11
-11
-11
-11

Relative Humidity (%)

88
87
85
79
76
73
70
70
70
72
77
82
80
80
79
79
80
80
80
80
82
80
82
82

Pressure (mb)

1016
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016

Ozone (du)

406
406
406
405
404
404
407
410
411
411
408
405
400
397
404
425
428
436
436
427
413
409
405
403

Monday 2

Waning Gibbous 99%

17:36

07:57

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:28, Set: 16:51, Transit: 12:09. Moon - Rise: 17:36, Set: 07:57. Civil Dark: 17:25 - 06:53. Nautical Dark: 18:05 - 06:14. Astro Dark: 18:43 - 05:35

Total Clouds (% Sky Obscured)

47
57
62
82
90
86
88
76
64
45
46
47
77
99
99
100
100
100
100
100
100
100
99
97

Low Clouds (% Sky Obscured)

47
57
62
80
88
85
88
76
64
45
46
47
77
98
99
100
100
100
100
100
100
100
99
97

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
3
4
5
3
2
0
3
7

High Clouds (% Sky Obscured)

0
0
0
1
0
1
0
2
1
0
0
0
1
2
2
0
0
0
0
0
0
0
26
51

ISS Passover

Visibility (miles)

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

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 (%)

3
11
11
14
14
14
18
14
11
10
9
7
4
4
18
4
7
17
8
8
10
7
16
10

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-11
-11
-11
-10
-9
-8
-7
-6
-5
-5
-5
-7
-7
-8
-9
-8
-8
-8
-8
-8
-8
-8
-8
-8

Dew Point (°C)

-11
-11
-11
-10
-9
-8
-8
-7
-7
-7
-6
-7
-7
-7
-7
-6
-6
-6
-6
-6
-6
-6
-6
-5

Relative Humidity (%)

82
82
82
79
79
79
76
76
73
75
84
87
89
90
92
89
89
89
85
85
85
89
89
90

Pressure (mb)

1016
1016
1016
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

402
395
389
379
370
364
363
361
359
352
349
345
344
347
350
352
350
348
348
349
347
346
344
342

Tuesday 3

Waning Gibbous 95%

18:59

08:14

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:27, Set: 16:52, Transit: 12:09. Moon - Rise: 18:59, Set: 08:14. Civil Dark: 17:27 - 06:52. Nautical Dark: 18:06 - 06:13. Astro Dark: 18:44 - 05:33

Total Clouds (% Sky Obscured)

98
100
80
64
64
100
100
100
100
100
100
100
99
99
99
99
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

98
100
80
64
64
91
73
67
67
72
79
84
94
92
96
99
98
96
95
96
98
99
99
99

Medium Clouds (% Sky Obscured)

10
15
20
24
18
8
3
32
77
86
88
91
90
72
62
52
52
43
29
47
65
82
71
60

High Clouds (% Sky Obscured)

77
60
37
23
45
78
100
100
100
100
98
96
66
55
77
98
98
93
100
94
85
78
78
73

ISS Passover

Visibility (miles)

2
5
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
5
6
6
5

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 (%)

5
5
5
5
4
3
2
2
1
0
0
0
0
0
0
0
9
13
18
25
29
35
28
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
90
89
84
75
72
71
71
72
75
79
84
86
87
87
89
89
91
91
92
92
92
94
94

Pressure (mb)

1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1015
1015
1015
1015
1014
1014
1014
1013
1012
1012

Ozone (du)

340
339
336
336
336
335
331
330
331
332
332
332
334
336
340
344
348
350
352
354
354
355
356
356

Wednesday 4

Waning Gibbous 89%

20:17

08:28

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
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 07:25, Set: 16:54, Transit: 12:10. Moon - Rise: 20:17, Set: 08:28. Civil Dark: 17:29 - 06:50. Nautical Dark: 18:08 - 06:11. Astro Dark: 18:46 - 05:32

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
97
95
93
94
95
96
98
99
100
96
91

Low Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
97
95
92
91
91
90
88
87
83
80
76

Medium Clouds (% Sky Obscured)

52
51
36
8
6
6
9
11
12
13
17
11
7
8
8
9
20
31
40
54
70
81
61
36

High Clouds (% Sky Obscured)

57
66
81
100
100
100
100
72
43
28
26
23
20
23
29
31
21
16
10
40
69
99
68
36

ISS Passover

Visibility (miles)

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

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 (%)

14
11
10
6
6
4
1
3
2
0
5
7
7
7
5
5
4
1
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
92
92
92
92
91
91
93
93
93
93
94
96
98
98
98
96
100
100
100
100
100
98
98

Pressure (mb)

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

Ozone (du)

357
358
361
364
367
371
375
379
382
385
389
393
397
401
404
408
411
409
406
404
409
414
420
418

Thursday 5

Waning Gibbous 81%

21:32

08:40

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: 07:23, Set: 16:56, Transit: 12:10. Moon - Rise: 21:32, Set: 08:40. Civil Dark: 17:30 - 06:49. Nautical Dark: 18:09 - 06:10. Astro Dark: 18:47 - 05:31

Total Clouds (% Sky Obscured)

88
92
94
96
97
97
98
98
99
100
100
100
100
99
99
99
99
99
99

Low Clouds (% Sky Obscured)

75
78
84
89
89
90
92
94
97
100
100
100
100
97
94
92
95
96
99

Medium Clouds (% Sky Obscured)

13
26
38
50
58
69
77
72
67
57
64
73
80
84
88
92
73
54
35

High Clouds (% Sky Obscured)

5
5
5
5
17
29
41
35
28
21
16
10
5
5
5
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

1
5
3
0
4
5
0
3
2
1
19
21
19
35
45
52
43
34
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-1
-1
-0
-1
-1
0
0
0
1
1
1
1
1
0
-0
-1
-1
-1
-0

Dew Point (°C)

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

Relative Humidity (%)

100
100
98
98
100
98
100
100
100
100
100
100
100
100
100
100
100
98
100

Pressure (mb)

1000
1000
1000
1000
1000
999
999
998
998
997
997
997
997
997
997
996
996
996
996

Ozone (du)

416
414
417
421
424
424
423
423
422
420
419
421
424
426
426
427
427
424
421

Forecast for Maršov u Úpice, Trutnov District, Czech Republic (50.48,15.98)

Generated: 30/01/26 06:15:16. Forecast: 30/01/26 to 05/02/26. Timezone: UTC+1.00