Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 13

Waxing Crescent 4%

07:45

20:52

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

Sun - Rise: 05:43, Set: 20:17, Transit: 13:00. Moon - Rise: 07:45, Set: 20:52. Civil Dark: 20:54 - 05:07. Nautical Dark: 21:40 - 04:20. Astro Dark: 22:38 - 03:25

Total Clouds (% Sky Obscured)

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

Low 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

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
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
3
2
1
0
7

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)

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

Chance of Frost

Temperature (°C)

16
15
14
13
13
12
12
11
11
13
17
20
22
23
25
26
27
27
28
28
27
25
22
19

Feels Like (°C)

15
14
14
13
12
12
12
12
11
14
18
21
22
23
25
26
27
28
28
28
27
26
22
20

Dew Point (°C)

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

Relative Humidity (%)

52
53
55
55
57
57
59
60
60
59
47
40
35
32
29
27
26
25
25
25
28
40
47
48

Pressure (mb)

1026
1026
1026
1026
1026
1026
1025
1025
1025
1025
1024
1024
1024
1023
1023
1022
1021
1020
1020
1019
1019
1019
1019
1019

Ozone (du)

312
312
311
311
310
308
306
304
304
305
306
307
307
308
309
310
310
310
311
312
312
312
311
311

Friday 14

Waxing Crescent 10%

09:06

21:05

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

Sun - Rise: 05:45, Set: 20:15, Transit: 13:00. Moon - Rise: 09:06, Set: 21:05. Civil Dark: 20:52 - 05:08. Nautical Dark: 21:38 - 04:22. Astro Dark: 22:35 - 03:28

Total Clouds (% Sky Obscured)

46
79
30
23
6
1
3
4
9
14
15
24
20
6
2
2
3
2
2
2
2
4
24
37

Low 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

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)

40
71
30
23
6
1
2
2
8
14
15
24
20
6
2
2
3
2
2
2
2
4
20
32

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)

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

Chance of Frost

Temperature (°C)

18
17
16
16
16
16
16
15
15
17
20
23
25
27
28
29
30
31
32
31
31
29
26
23

Feels Like (°C)

18
17
16
14
15
17
16
16
15
18
19
22
24
25
27
28
30
30
31
30
30
29
26
23

Dew Point (°C)

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

Relative Humidity (%)

47
48
48
48
50
51
52
53
52
52
43
36
30
25
22
20
19
18
17
17
20
28
32
35

Pressure (mb)

1019
1019
1019
1019
1019
1018
1018
1018
1018
1017
1017
1017
1017
1016
1015
1015
1014
1014
1013
1013
1012
1012
1012
1012

Ozone (du)

312
311
309
309
309
309
308
308
307
308
310
310
310
310
310
309
308
308
308
308
309
308
307
308

Saturday 15

Waxing Crescent 18%

10:23

21:19

22 OK
23 OK
00 Good
01 OK
02 Good
03 Good
04 Good
05 OK
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

Sun - Rise: 05:46, Set: 20:13, Transit: 13:00. Moon - Rise: 10:23, Set: 21:19. Civil Dark: 20:49 - 05:10. Nautical Dark: 21:35 - 04:24. Astro Dark: 22:32 - 03:31

Total Clouds (% Sky Obscured)

34
24
4
30
4
4
16
37
53
66
95
87
66
71
64
71
99
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
17
27
21
4
20
55
5

Medium Clouds (% Sky Obscured)

34
24
0
0
0
0
0
21
31
29
34
33
51
62
60
45
80
82
66
87
70
73
61
15

High Clouds (% Sky Obscured)

5
4
4
30
4
4
14
20
38
59
91
74
21
44
35
33
64
59
85
100
100
88
94
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
6
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
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
3
6
29
0
4
13
27
34
40
5
2
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
20
20
20
19
19
18
17
16
18
22
23
25
26
27
27
28
28
27
25
23
21
20
20

Feels Like (°C)

21
21
21
20
18
19
19
18
17
17
20
21
23
25
25
26
28
26
24
24
20
20
21
21

Dew Point (°C)

6
6
5
5
5
4
4
4
4
5
7
5
5
5
4
4
5
7
12
14
15
17
16
15

Relative Humidity (%)

38
38
38
38
37
38
39
39
42
42
38
32
28
25
22
22
23
26
39
51
59
79
79
76

Pressure (mb)

1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1012
1012
1013
1013
1013
1013
1013
1014

Ozone (du)

307
306
306
306
307
307
307
306
305
306
306
307
307
307
307
306
306
307
307
311
311
314
314
316

Sunday 16

Waxing Crescent 26%

11:40

21:33

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
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:48, Set: 20:11, Transit: 13:00. Moon - Rise: 11:40, Set: 21:33. Civil Dark: 20:47 - 05:12. Nautical Dark: 21:33 - 04:26. Astro Dark: 22:29 - 03:33

Total Clouds (% Sky Obscured)

97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
88
82
88
94
100
100
100

Low Clouds (% Sky Obscured)

0
4
7
10
17
47
36
31
77
77
75
69
66
68
74
79
74
69
68
70
66
66
38
51

Medium Clouds (% Sky Obscured)

2
5
9
12
41
54
60
69
69
73
79
84
90
93
96
100
92
83
74
76
79
83
88
94

High Clouds (% Sky Obscured)

93
100
100
100
100
100
100
100
98
100
100
100
81
100
100
100
82
53
30
50
75
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

4
7
4
0
1
1
2
15
31
57
71
70
95
95
95
95
95
95
95
95
71
33
16
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
0.4
0.3
0.7
1.5
3.4
4.1
4.8
3.8
1
0.5
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
17
17
16
16
16
16
17
17
17
18
18
18
18
18
18
18
18
17
17
16
16
15

Feels Like (°C)

19
18
17
17
16
16
17
16
16
17
18
18
19
19
19
19
19
18
16
16
15
15
15
15

Dew Point (°C)

15
15
14
14
14
14
14
14
14
15
16
16
16
17
17
18
18
18
17
16
16
15
15
14

Relative Humidity (%)

81
83
82
85
86
87
83
86
86
85
89
92
90
93
95
96
96
96
95
93
93
95
95
95

Pressure (mb)

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

Ozone (du)

317
317
315
313
311
310
310
309
309
308
308
308
309
310
310
308
308
307
307
309
311
314
317
318

Monday 17

Waxing Crescent 36%

12:55

21:51

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
18 Bad
19 Bad
20 Bad
21 Bad

Sun - Rise: 05:49, Set: 20:09, Transit: 12:59. Moon - Rise: 12:55, Set: 21:51. Civil Dark: 20:45 - 05:14. Nautical Dark: 21:30 - 04:28. Astro Dark: 22:26 - 03:36

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
91
89
91
92
92
93
80
67
54
60
68

Low Clouds (% Sky Obscured)

35
40
40
45
58
71
85
91
93
95
93
91
87
80
85
91
79
63
47
45
41
32
28
30

Medium Clouds (% Sky Obscured)

100
96
93
90
93
96
98
100
100
100
75
52
53
48
43
42
29
15
2
1
1
0
4
8

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
70
74
55
56
50
55
55
56
65
66
80
64
41
19
25
32

ISS Passover

Visibility (miles)

9
9
9
9
9
9
8
3
5
7
9
9
9
9
6
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
None
None
None
Very Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

4
6
8
20
44
58
85
95
95
95
95
95
95
95
91
59
69
50
10
43
59
71
62
46

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
14
14
13
13
13
13
13
13
13
13
13
14
14
16
16
17
18
19
19
18
17
16
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
92
93
92
95
93
93
93
89
92
83
72
67
58
54
52
50
56
62
69
73

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1012
1012
1012
1012
1012
1013
1013

Ozone (du)

319
320
321
323
325
327
330
331
335
339
343
346
352
356
351
342
338
333
328
323
320
318
315
314

Tuesday 18

Waxing Crescent 46%

14:10

No Set

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
18 Bad
19 Bad
20 Bad
21 OK

Sun - Rise: 05:51, Set: 20:07, Transit: 12:59. Moon - Rise: 14:10, Set: No Set. Civil Dark: 20:43 - 05:15. Nautical Dark: 21:28 - 04:30. Astro Dark: 22:23 - 03:39

Total Clouds (% Sky Obscured)

76
68
59
50
59
65
76
77
78
75
82
88
95
96
97
98
93
87
81
76
71
64
51
39

Low Clouds (% Sky Obscured)

32
22
12
2
5
10
15
23
23
21
36
51
66
77
87
93
81
69
58
52
44
36
34
32

Medium Clouds (% Sky Obscured)

14
21
31
40
52
61
65
58
52
48
59
69
78
79
82
87
78
67
56
54
48
43
26
19

High Clouds (% Sky Obscured)

33
24
17
7
5
4
2
1
0
0
1
1
1
1
0
0
1
2
2
2
3
3
3
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 (%)

15
15
11
0
0
0
0
1
1
0
1
0
0
1
3
4
1
0
0
0
0
1
2
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
79
82
83
86
86
87
87
82
76
70
69
68
67
66
65
64
63
63
62
67
71
77
81

Pressure (mb)

1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1015

Ozone (du)

312
310
309
307
305
304
303
302
302
301
301
302
303
305
305
305
305
305
304
304
304
304
303
304

Wednesday 19

Waxing Crescent 56%

15:21

22:13

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

Sun - Rise: 05:52, Set: 20:05, Transit: 12:59. Moon - Rise: 15:21, Set: 22:13. Civil Dark: 20:41 - 05:17. Nautical Dark: 21:25 - 04:32. Astro Dark: 22:20 - 03:41

Total Clouds (% Sky Obscured)

29
25
21
19
24
27
31
50
62
67
51
41
33
31
27
22
21
20
20
28
35
44

Low Clouds (% Sky Obscured)

29
21
12
3
3
2
0
0
0
0
0
0
0
4
9
13
9
5
0
12
24
36

Medium Clouds (% Sky Obscured)

16
11
6
1
1
0
0
3
5
8
8
8
9
12
17
22
21
20
20
25
26
30

High Clouds (% Sky Obscured)

2
2
1
0
14
27
31
50
62
67
51
40
21
13
5
0
1
2
2
3
2
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

Fog (%)

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

Precipitation Probability (%)

2
2
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
15
15
14
14
14
13
14
15
16
18
20
22
23
24
25
26
26
26
25
24

Feels Like (°C)

18
19
18
18
17
17
16
16
16
16
15
20
20
21
22
23
23
29
28
27
28
29

Dew Point (°C)

14
14
13
13
13
13
12
12
12
13
13
13
13
14
14
14
14
14
14
13
14
15

Relative Humidity (%)

83
87
89
89
90
92
92
92
89
86
83
73
67
61
57
53
49
48
46
43
48
54

Pressure (mb)

1015
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1016
1016
1016
1015
1015
1014
1013
1013
1012
1012

Ozone (du)

304
304
304
305
305
304
304
303
303
303
303
304
304
305
304
304
304
303
302
301
301
302

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

Generated: 13/08/26 22:32:33. Forecast: 13/08/26 to 19/08/26. Timezone: UTC+2.00