Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 17

Waxing Crescent 5%

05:33

22:22

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

Sun - Rise: 05:03, Set: 20:40, Transit: 12:52. Moon - Rise: 05:33, Set: 22:22. Civil Dark: 21:20 - 04:22. Nautical Dark: 22:15 - 03:27. Astro Dark: 23:35 - 02:05

Total Clouds (% Sky Obscured)

100
90
83
75
46
37
34
51
63
34
57
39
25
66
63
76
58
93
77
88
97
85
59
59

Low Clouds (% Sky Obscured)

34
6
1
1
0
0
0
16
15
11
16
17
1
0
0
55
44
40
39
52
71
59
25
9

Medium Clouds (% Sky Obscured)

63
59
47
70
46
37
34
32
12
15
0
0
0
0
1
0
39
53
47
67
74
85
58
45

High Clouds (% Sky Obscured)

65
10
0
0
0
1
3
33
35
10
57
39
25
40
46
48
10
27
5
2
3
3
2
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
7

Fog (%)

0
0
0
0
0
0
0
0
0
2
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
Very Light Rain
None

Precipitation Probability (%)

22
1
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
14
4
3
5
21
37
33

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
0.2
0

Wind Speed/Direction (mph)

5
5
4
4
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
3
4
3
3
3

Chance of Frost

Temperature (°C)

11
11
10
8
6
6
5
5
4
4
4
3
4
7
9
11
13
14
14
15
15
15
16
15

Feels Like (°C)

9
9
8
6
5
6
5
5
3
3
3
1
3
5
9
10
11
13
12
13
13
13
15
16

Dew Point (°C)

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

Relative Humidity (%)

59
65
74
82
90
91
91
91
91
91
91
91
89
82
73
66
60
55
54
55
58
58
55
58

Pressure (mb)

1016
1016
1016
1017
1017
1017
1018
1018
1017
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1014
1014
1014
1014

Ozone (du)

372
374
382
385
386
384
383
385
388
391
393
393
391
390
387
387
389
388
385
385
385
382
381
380

Monday 18

Waxing Crescent 11%

06:38

23:37

18 Bad
19 Bad
20 OK
21 OK
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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 05:02, Set: 20:41, Transit: 12:52. Moon - Rise: 06:38, Set: 23:37. Civil Dark: 21:22 - 04:21. Nautical Dark: 22:17 - 03:25. Astro Dark: 23:39 - 02:01

Total Clouds (% Sky Obscured)

61
50
24
30
64
85
100
100
97
99
96
89
78
74
77
45
43
64
56
44
43
47
46
40

Low Clouds (% Sky Obscured)

29
28
1
0
0
1
2
36
45
51
48
30
29
28
42
36
12
27
23
28
34
31
33
18

Medium Clouds (% Sky Obscured)

42
41
24
30
40
57
47
40
26
58
65
23
22
27
33
29
25
57
45
26
22
31
24
28

High Clouds (% Sky Obscured)

4
4
6
8
27
64
100
100
97
99
94
83
73
69
47
3
5
3
3
3
2
2
2
7

ISS Passover

Visibility (miles)

6
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
6
6
6
9
6
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
Very Light Rain
None

Precipitation Probability (%)

29
15
0
0
0
0
0
0
0
0
0
0
0
0
1
19
45
62
60
63
59
62
67
67

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
12
10
8
7
7
7
7
7
7
7
7
9
11
13
15
16
16
17
17
17
17
17

Feels Like (°C)

15
14
11
9
8
7
6
5
5
6
6
6
6
7
10
12
14
15
16
16
17
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

66
78
84
90
91
91
91
91
90
88
88
88
88
85
81
75
68
68
68
67
63
61
60
63

Pressure (mb)

1014
1014
1014
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

377
375
375
375
376
378
379
380
378
377
377
375
373
375
376
375
376
377
380
385
382
376
372
371

Tuesday 19

Waxing Crescent 20%

07:58

00:32

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
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 05:00, Set: 20:43, Transit: 12:52. Moon - Rise: 07:58, Set: 00:32. Civil Dark: 21:24 - 04:19. Nautical Dark: 22:20 - 03:23. Astro Dark: 23:44 - 01:56

Total Clouds (% Sky Obscured)

60
53
83
96
100
98
100
100
91
82
95
97
73
83
51
76
96
100
99
96
84
83
91
78

Low Clouds (% Sky Obscured)

21
15
1
1
14
14
25
26
26
5
35
46
19
20
22
41
46
49
69
50
43
51
74
53

Medium Clouds (% Sky Obscured)

44
34
16
33
96
94
84
85
82
78
86
84
57
73
23
54
90
90
69
68
68
66
30
27

High Clouds (% Sky Obscured)

15
10
68
72
100
93
100
100
77
56
46
87
73
26
4
15
72
95
70
67
38
16
11
31

ISS Passover

Visibility (miles)

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

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

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

Precipitation Probability (%)

76
72
44
52
47
18
10
0
0
0
1
19
24
7
0
5
32
34
40
20
22
32
38
56

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
15
13
11
10
10
9
8
8
8
8
7
7
8
10
11
13
13
13
13
14
15
15
15

Dew Point (°C)

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

Relative Humidity (%)

66
82
84
87
90
91
91
93
95
98
98
98
98
100
96
86
78
72
72
74
66
61
61
71

Pressure (mb)

1017
1018
1019
1020
1020
1020
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1023

Ozone (du)

367
363
361
361
359
358
357
356
356
355
352
353
355
358
361
358
357
356
356
357
359
363
365
367

Wednesday 20

Waxing Crescent 31%

09:25

01:10

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

Sun - Rise: 04:59, Set: 20:44, Transit: 12:52. Moon - Rise: 09:25, Set: 01:10. Civil Dark: 21:25 - 04:18. Nautical Dark: 22:22 - 03:21. Astro Dark: 23:48 - 01:52

Total Clouds (% Sky Obscured)

80
86
45
36
32
42
45
52
36
21
7
10
17
22
61
82
89
83
81
72
55
70
83
84

Low Clouds (% Sky Obscured)

45
22
6
7
6
7
7
9
5
3
0
0
1
1
12
22
39
52
54
64
49
52
56
45

Medium Clouds (% Sky Obscured)

28
22
20
10
8
13
15
17
12
8
4
7
10
11
19
45
61
45
28
16
28
40
52
56

High Clouds (% Sky Obscured)

52
83
45
28
0
0
0
0
0
0
0
0
1
4
31
40
35
21
14
1
1
0
0
9

ISS Passover

Visibility (miles)

7
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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

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

Precipitation Probability (%)

54
47
7
0
0
0
0
0
0
0
0
0
0
0
0
0
16
24
34
34
41
36
32
23

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
15
14
13
12
11
10
10
9
9
9
9
10
11
13
14
16
17
18
19
19
20
20
20

Feels Like (°C)

14
15
15
14
12
12
11
11
10
11
10
10
11
13
14
14
15
15
16
18
19
20
19
19

Dew Point (°C)

13
13
12
11
10
9
9
9
8
8
8
7
8
9
10
10
10
11
12
12
12
12
12
13

Relative Humidity (%)

81
86
87
89
90
91
90
91
93
91
91
90
91
87
83
76
70
67
68
64
60
58
62
63

Pressure (mb)

1023
1023
1024
1025
1025
1026
1026
1026
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1027
1027
1026
1026
1026

Ozone (du)

366
368
370
368
367
367
365
365
364
360
356
354
361
362
360
358
357
355
352
349
348
348
345
343

Thursday 21

Waxing Crescent 28%

10:51

01:36

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 OK
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 04:58, Set: 20:45, Transit: 12:52. Moon - Rise: 10:51, Set: 01:36. Civil Dark: 21:27 - 04:16. Nautical Dark: 22:24 - 03:19. Astro Dark: 23:53 - 01:47

Total Clouds (% Sky Obscured)

61
83
80
76
76
72
71
50
47
45
43
46
43
35
63
75
85
81
77
72
75
78
81
67

Low Clouds (% Sky Obscured)

20
8
14
15
9
7
12
18
24
30
40
31
16
0
31
37
46
49
52
55
60
65
72
61

Medium Clouds (% Sky Obscured)

60
64
59
51
47
57
49
38
28
22
8
14
18
22
39
33
30
25
16
8
11
13
16
12

High Clouds (% Sky Obscured)

15
30
23
26
20
11
6
2
4
2
2
3
7
7
2
3
4
3
25
26
23
11
2
3

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 (%)

19
15
0
0
0
0
0
0
0
0
0
0
0
0
25
35
33
36
36
33
27
28
36
35

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

Chance of Frost

Temperature (°C)

19
18
17
15
13
12
11
11
10
10
10
9
11
13
15
16
18
19
19
20
19
19
19
20

Feels Like (°C)

19
21
16
14
12
11
11
11
11
11
11
10
11
15
17
17
17
17
18
18
18
20
20
20

Dew Point (°C)

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

Relative Humidity (%)

65
73
77
82
84
89
90
91
91
90
91
91
90
84
78
69
64
58
58
57
56
56
55
54

Pressure (mb)

1026
1026
1027
1027
1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1027
1027
1027
1027
1026
1026
1026
1026
1026

Ozone (du)

342
341
337
335
334
333
332
331
330
329
327
326
327
329
329
327
325
322
323
323
324
325
327
328

Friday 22

Waxing Crescent 42%

12:13

01:54

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

Sun - Rise: 04:57, Set: 20:47, Transit: 12:52. Moon - Rise: 12:13, Set: 01:54. Civil Dark: 21:28 - 04:15. Nautical Dark: 22:26 - 03:17. Astro Dark: 23:58 - 01:41

Total Clouds (% Sky Obscured)

53
38
32
26
17
29
39
57
64
62
65
58
47
41
42
39
36
41
47
53
55
63
68
64

Low Clouds (% Sky Obscured)

49
37
26
18
10
18
27
36
38
41
40
36
33
26
25
24
23
23
23
24
29
35
41
40

Medium Clouds (% Sky Obscured)

10
10
13
19
17
29
39
54
64
62
65
58
47
41
42
39
36
41
47
53
55
63
43
42

High Clouds (% Sky Obscured)

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

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
8
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 (%)

33
32
24
13
3
24
25
9
14
12
6
16
15
7
7
9
8
24
29
35
41
44
50
47

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

Chance of Frost

Temperature (°C)

18
17
16
14
13
11
11
11
11
11
11
11
12
14
15
16
18
19
18
18
18
18
18
19

Feels Like (°C)

19
20
20
15
15
15
14
14
14
12
12
12
12
11
11
18
18
19
18
18
17
22
21
21

Dew Point (°C)

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

Relative Humidity (%)

60
67
75
78
81
84
84
87
87
87
88
88
84
78
72
65
59
53
51
48
46
50
53
57

Pressure (mb)

1026
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025
1024
1024
1024
1024

Ozone (du)

330
332
334
334
335
336
337
338
339
340
340
341
341
341
341
341
341
341
341
340
340
339
338
337

Saturday 23

First Quarter 53%

13:30

02:09

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
13 Bad

Sun - Rise: 04:56, Set: 20:48, Transit: 12:52. Moon - Rise: 13:30, Set: 02:09. Civil Dark: 21:30 - 04:14. Nautical Dark: 22:28 - 03:15. Astro Dark: 00:04 - 01:35

Total Clouds (% Sky Obscured)

59
56
51
49
57
64
74
87
86
83
79
83
84
87
90
94
99
87
73
52

Low Clouds (% Sky Obscured)

38
36
35
33
33
39
43
47
54
58
66
69
60
59
60
71
77
71
66
52

Medium Clouds (% Sky Obscured)

36
33
50
49
57
64
74
66
67
68
78
77
72
71
78
84
91
80
67
52

High Clouds (% Sky Obscured)

2
1
2
2
3
34
66
87
86
83
79
83
84
87
90
94
99
87
73
52

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
8
7
7
7
7
8
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
Very Light Rain
None
Light Rain
Light Rain
None
Light Rain
Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

45
39
43
42
24
47
56
55
70
74
67
95
95
72
95
95
95
95
95
95

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0
0.4
0.4
0
0.8
0.7
0
0.8
1.2
0.7
0.6
0.7
0.8

Wind Speed/Direction (mph)

5
3
2
2
2
2
2
2
3
3
3
3
3
4
4
5
7
8
9
10

Chance of Frost

Temperature (°C)

18
17
17
16
14
13
13
13
13
13
13
12
13
14
15
15
16
17
17
17

Feels Like (°C)

22
23
23
17
17
18
18
18
18
15
15
14
14
14
13
16
16
15
16
16

Dew Point (°C)

11
12
13
12
12
11
11
12
12
12
12
11
12
13
13
12
11
10
9
7

Relative Humidity (%)

64
71
78
80
84
87
87
90
92
93
95
93
93
92
90
80
72
64
57
50

Pressure (mb)

1024
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1021
1021
1021
1021
1020
1020
1020

Ozone (du)

336
335
333
332
331
331
334
338
342
341
340
339
337
336
335
333
332
331
331
331

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

Generated: 17/05/26 17:29:21. Forecast: 17/05/26 to 23/05/26. Timezone: UTC+2.00