Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 19

Waxing Crescent 20%

07:58

00:32

21 OK
22 OK
23 OK
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
18 Bad
19 Bad
20 Bad

Sun - Rise: 05:00, Set: 20:44, 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)

30
22
19
43
93
86
83
73
51
52
40
40
82
98
99
99
97
96
100
100
92
45
57
64

Low Clouds (% Sky Obscured)

2
1
19
28
19
1
1
1
1
6
11
25
27
21
22
23
38
40
5
14
36
1
1
13

Medium Clouds (% Sky Obscured)

29
22
19
43
93
85
83
73
47
46
34
26
34
48
84
99
97
77
72
95
75
45
57
58

High Clouds (% Sky Obscured)

4
22
16
43
78
59
51
19
5
3
5
5
60
86
63
80
67
71
100
100
72
4
4
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
8
7
4
9
9
9
9
8
7
6
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
Very Light Rain
Very Light Rain
None
None
None
None
Very Light Rain
None
None
None
None

Precipitation Probability (%)

11
0
2
0
0
0
0
0
0
0
1
22
35
51
53
30
29
31
37
47
43
31
23
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
11
10
9
9
9
8
8
8
9
11
13
14
15
16
17
18
18
18
18
18
17
16
15

Feels Like (°C)

12
10
10
9
9
8
8
9
9
9
11
13
15
15
15
15
16
17
16
16
16
16
18
16

Dew Point (°C)

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

Relative Humidity (%)

86
88
88
88
90
88
88
90
90
90
87
81
78
77
73
69
60
56
56
58
62
74
81
82

Pressure (mb)

1020
1020
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1022
1022
1022

Ozone (du)

368
367
366
366
366
364
363
364
364
361
359
359
358
359
359
358
359
360
360
361
363
362
363
365

Wednesday 20

Waxing Crescent 31%

09:25

01:10

21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
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
18 OK
19 Good
20 Good

Sun - Rise: 04:59, Set: 20:45, 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)

78
89
67
78
79
68
53
43
25
27
22
53
73
76
79
82
86
74
72
79
66
31
5
4

Low Clouds (% Sky Obscured)

13
34
47
66
51
45
32
37
25
27
22
53
47
63
70
73
75
61
59
57
22
4
0
1

Medium Clouds (% Sky Obscured)

57
84
67
76
66
50
38
18
2
1
1
2
48
34
14
21
17
29
15
24
41
23
0
0

High Clouds (% Sky Obscured)

68
52
3
0
0
0
0
0
0
0
3
3
6
3
4
0
0
2
14
30
20
2
4
3

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
6
4
7
9
7
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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
5
24
13
6
1
1
2
0
0
27
47
53
53
45
34
22
23
18
4
2
3
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
12
11
11
11
11
9
9
8
9
10
13
14
16
16
17
18
19
19
18
18
18
17
15

Feels Like (°C)

13
11
11
12
11
11
11
11
10
10
12
15
16
16
16
17
17
17
18
16
15
17
16
14

Dew Point (°C)

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

Relative Humidity (%)

87
90
88
90
91
91
95
95
93
95
90
86
79
75
71
65
59
58
55
65
63
60
66
74

Pressure (mb)

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

Ozone (du)

367
370
372
371
367
365
365
364
363
364
365
366
366
368
370
371
371
372
369
367
364
361
358
357

Thursday 21

Waxing Crescent 42%

10:51

01:36

21 Good
22 Good
23 Good
00 OK
01 OK
02 Bad
03 Bad
04 OK
05 OK
06 OK
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

Sun - Rise: 04:58, Set: 20:47, 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)

11
2
6
37
41
61
49
42
46
35
54
62
75
77
100
100
98
98
97
92
97
98
99
89

Low Clouds (% Sky Obscured)

0
0
0
0
13
30
33
34
33
0
0
0
4
53
88
91
86
85
80
61
31
32
36
16

Medium Clouds (% Sky Obscured)

0
0
0
28
22
34
27
0
18
0
21
33
39
27
93
97
83
52
38
19
13
10
6
5

High Clouds (% Sky Obscured)

11
2
5
32
35
40
23
21
15
35
54
62
75
64
61
9
3
11
22
65
82
89
97
73

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 (%)

0
1
0
0
0
0
0
0
0
0
0
0
0
0
1
13
4
1
16
6
6
17
1
0

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

Chance of Frost

Temperature (°C)

12
11
10
9
9
8
8
8
8
8
11
14
15
17
18
19
19
20
20
20
20
20
19
17

Feels Like (°C)

12
10
9
9
7
7
7
7
7
8
10
13
15
16
17
18
19
19
18
18
19
18
18
17

Dew Point (°C)

9
9
8
7
6
6
6
5
5
6
7
9
9
10
10
11
10
10
11
12
12
12
13
13

Relative Humidity (%)

81
85
87
84
84
85
85
84
85
84
77
70
66
63
60
59
55
51
55
59
60
62
71
77

Pressure (mb)

1028
1028
1028
1029
1029
1029
1029
1030
1030
1030
1030
1030
1030
1030
1029
1029
1029
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

354
351
349
347
345
342
340
337
337
338
339
337
334
333
334
335
334
333
332
331
330
329
330
332

Friday 22

Waxing Crescent 53%

12:13

01:54

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

Sun - Rise: 04:57, Set: 20:48, 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)

75
55
52
43
47
29
44
61
71
66
58
45
57
72
73
60
54
44
46
26
19
11
3
4

Low Clouds (% Sky Obscured)

8
1
6
12
20
25
28
32
27
19
11
22
41
53
59
52
54
44
46
26
19
11
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

42
15
12
15
22
9
18
35
45
40
39
26
22
33
25
17
2
1
0
0
0
1
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 (%)

0
0
0
0
0
0
0
0
0
0
0
2
17
23
20
10
3
2
3
2
1
1
0
0

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

Chance of Frost

Temperature (°C)

15
14
13
12
11
11
10
10
10
12
14
16
17
18
19
20
21
22
22
21
21
20
19
17

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
84
86
86
87
87
88
91
91
92
86
78
71
68
68
67
59
55
56
58
59
64
70
81

Pressure (mb)

1029
1029
1029
1029
1029
1029
1030
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1027
1027
1027
1027
1027
1027

Ozone (du)

336
341
345
345
344
343
342
341
340
338
337
338
336
334
334
335
336
337
337
336
336
335
335
335

Saturday 23

First Quarter 64%

13:30

02:09

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

Sun - Rise: 04:56, Set: 20:49, 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)

4
4
10
14
22
22
23
27
24
24
23
7
11
15
17
19
20
18
16
14
9
6
2
1

Low Clouds (% Sky Obscured)

0
0
8
14
22
22
23
27
20
10
0
4
9
15
17
19
20
18
16
14
9
5
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

1
1
1
1
2
2
2
3
12
21
23
0
0
0
0
4
5
6
4
3
2
2
1
1

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 (%)

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

Chance of Frost

Temperature (°C)

15
14
12
12
11
11
11
11
10
12
15
17
18
19
21
21
22
23
23
23
23
22
20
20

Feels Like (°C)

16
15
13
12
12
11
12
11
11
13
16
18
19
19
19
20
21
21
23
23
22
23
23
24

Dew Point (°C)

13
12
11
11
10
10
10
10
9
11
12
12
12
12
11
11
12
12
13
13
14
14
15
16

Relative Humidity (%)

87
90
93
92
93
93
93
93
91
93
84
74
67
60
54
52
52
51
53
55
55
63
70
77

Pressure (mb)

1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027

Ozone (du)

335
334
334
334
332
333
333
334
334
333
331
331
331
331
331
332
334
335
336
336
337
335
334
332

Sunday 24

Waxing Gibbous 73%

14:44

02:22

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

Sun - Rise: 04:55, Set: 20:50, Transit: 12:53. Moon - Rise: 14:44, Set: 02:22. Civil Dark: 21:31 - 04:13. Nautical Dark: 22:30 - 03:13. Astro Dark: 00:09 - 01:29

Total Clouds (% Sky Obscured)

1
0
13
27
47
54
55
59
54
46
41
40
36
31
37
44
50
54
63
69
65
61
56
39

Low Clouds (% Sky Obscured)

0
0
6
12
19
19
19
17
11
6
0
1
1
2
12
23
33
36
39
38
37
38
41
27

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
14
28
45
48
54
55
39
18
0
0

High Clouds (% Sky Obscured)

0
0
13
27
41
45
50
48
52
46
41
40
36
31
37
44
50
42
26
11
20
28
37
25

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
1
7
6
1
8
9
7
9

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

Chance of Frost

Temperature (°C)

18
16
14
13
13
13
13
12
12
14
17
19
20
22
23
24
25
27
26
26
26
25
23
22

Feels Like (°C)

19
18
18
17
16
16
13
14
14
14
14
14
22
23
23
24
25
27
29
28
27
27
27
27

Dew Point (°C)

15
13
12
11
11
11
10
10
10
11
12
13
13
14
14
14
14
15
15
16
16
17
17
18

Relative Humidity (%)

82
85
89
87
87
87
86
86
84
78
72
67
63
59
55
52
50
49
50
52
54
61
66
75

Pressure (mb)

1028
1028
1028
1029
1029
1029
1029
1029
1029
1029
1029
1028
1028
1028
1028
1027
1027
1026
1026
1025
1025
1025
1025
1024

Ozone (du)

331
329
328
326
325
324
322
320
318
316
315
313
312
310
309
309
309
310
310
310
311
311
310
310

Monday 25

Waxing Gibbous 70%

15:57

02:34

21 OK
22 Good
23 Good
00 Good
01 Good
02 Good
03 OK
04 Bad
05 OK
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good

Sun - Rise: 04:54, Set: 20:52, Transit: 12:53. Moon - Rise: 15:57, Set: 02:34. Civil Dark: 21:33 - 04:11. Nautical Dark: 22:32 - 03:12. Astro Dark: 00:16 - 01:21

Total Clouds (% Sky Obscured)

22
4
3
1
0
16
33
49
33
15
0
1
1
2
2
2
3

Low Clouds (% Sky Obscured)

14
1
1
0
0
16
33
49
33
15
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

12
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

Fog (%)

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

Precipitation Probability (%)

6
0
0
0
0
0
3
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
18
16
15
15
14
13
13
12
14
15
16
17
19
20
21
21

Feels Like (°C)

20
20
20
19
18
17
14
14
14
13
12
11
18
18
19
19
21

Dew Point (°C)

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

Relative Humidity (%)

77
81
85
85
86
86
86
86
86
78
70
63
56
50
45
44
43

Pressure (mb)

1025
1025
1026
1026
1026
1026
1026
1027
1027
1027
1028
1028
1028
1028
1027
1027
1027

Ozone (du)

311
312
313
313
314
314
314
314
314
315
316
317
318
318
318
319
319

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

Generated: 19/05/26 21:42:32. Forecast: 19/05/26 to 25/05/26. Timezone: UTC+2.00