Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 26

Waxing Gibbous 78%

15:47

04:08

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

Sun - Rise: 05:44, Set: 20:13, Transit: 12:59. Moon - Rise: 15:47, Set: 04:08. Civil Dark: 20:49 - 05:08. Nautical Dark: 21:34 - 04:22. Astro Dark: 22:27 - 03:29

Total Clouds (% Sky Obscured)

80
84
80
100
76
13
23
94
67
3
3
0
0
4
10
17
9
35
79
87
86
99
100
99

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)

25
19
68
94
59
3
2
2
0
0
0
0
0
0
0
0
0
0
25
17
53
90
94
98

High Clouds (% Sky Obscured)

80
84
80
100
76
5
15
94
65
3
3
0
0
3
9
14
6
25
71
83
83
98
100
95

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

Chance of Frost

Temperature (°C)

11
10
9
8
8
7
6
5
5
4
4
4
7
9
11
13
14
15
16
17
17
16
16
15

Feels Like (°C)

8
6
7
6
5
4
5
5
2
3
4
4
7
9
10
12
13
14
15
14
13
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

49
53
55
53
52
51
54
56
56
59
60
59
53
47
43
40
38
35
33
33
34
35
40
46

Pressure (mb)

1024
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1023
1022
1022
1021
1021
1020
1020

Ozone (du)

392
394
395
396
395
394
393
395
398
400
400
401
400
403
401
395
392
390
388
386
384
383
382
382

Monday 27

Waxing Gibbous 86%

17:00

04:21

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 OK
16 OK
17 OK
18 Good
19 Bad

Sun - Rise: 05:42, Set: 20:15, Transit: 12:59. Moon - Rise: 17:00, Set: 04:21. Civil Dark: 20:51 - 05:06. Nautical Dark: 21:36 - 04:20. Astro Dark: 22:30 - 03:25

Total Clouds (% Sky Obscured)

99
100
100
100
94
100
100
100
100
100
89
98
100
100
100
100
91
100
100
47
26
19
14
50

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
1
1
1
6
25

Medium Clouds (% Sky Obscured)

96
80
72
57
40
16
6
20
81
61
48
45
51
94
87
90
77
81
46
27
13
15
2
0

High Clouds (% Sky Obscured)

98
100
100
97
84
100
100
100
100
100
85
89
100
100
100
100
85
100
100
38
8
0
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
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)

3
2
2
2
2
3
3
3
3
3
3
3
3
5
6
7
7
8
8
8
8
8
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
10
8
8
7
6
6
5
4
3
3
5
6
8
9
11
12
13
13
14
15
15
15
14

Dew Point (°C)

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

Relative Humidity (%)

50
51
52
56
59
62
65
69
70
70
71
70
64
60
57
52
51
47
45
43
42
43
45
54

Pressure (mb)

1021
1021
1021
1021
1021
1022
1021
1021
1022
1022
1022
1022
1022
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021

Ozone (du)

384
385
383
382
381
382
384
388
393
396
399
403
403
402
404
406
406
406
410
415
418
415
409
405

Tuesday 28

Waxing Gibbous 92%

18:12

04:33

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

Sun - Rise: 05:40, Set: 20:16, Transit: 12:59. Moon - Rise: 18:12, Set: 04:33. Civil Dark: 20:52 - 05:04. Nautical Dark: 21:39 - 04:18. Astro Dark: 22:33 - 03:22

Total Clouds (% Sky Obscured)

50
55
54
60
38
43
3
3
0
1
0
0
4
57
70
4
13
13
9
3
0
0
5
39

Low Clouds (% Sky Obscured)

20
25
25
25
17
21
2
2
0
0
0
0
0
0
0
4
13
13
9
3
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
4
57
70
0
1
4
3
0
0
0
3
33

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)

6
9
10
10
10
8
6
5
4
4
4
4
8
10
10
10
11
11
11
11
11
11
11
10

Chance of Frost

Temperature (°C)

14
11
10
9
8
7
6
5
5
4
3
4
7
8
10
11
13
13
14
14
13
13
12
10

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
59
58
58
59
61
60
65
66
67
67
63
56
58
53
49
42
38
35
33
33
33
35
41

Pressure (mb)

1021
1023
1023
1024
1024
1025
1025
1025
1026
1026
1026
1027
1027
1028
1028
1027
1027
1027
1027
1026
1026
1026
1027
1027

Ozone (du)

407
412
413
410
411
413
413
409
406
404
402
402
402
403
402
403
404
404
403
405
411
412
412
412

Wednesday 29

Waxing Gibbous 97%

19:25

04:46

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

Sun - Rise: 05:39, Set: 20:18, Transit: 12:59. Moon - Rise: 19:25, Set: 04:46. Civil Dark: 20:54 - 05:02. Nautical Dark: 21:41 - 04:15. Astro Dark: 22:36 - 03:19

Total Clouds (% Sky Obscured)

7
8
4
1
4
10
11
9
5
3
3
3
1
2
3
8
13
23
49
51
56
45
37
29

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
6
30
28
35
36
37
29

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
11
18
19
23
27
20
10
0

High Clouds (% Sky Obscured)

3
6
2
1
3
9
9
8
5
3
2
2
0
0
0
0
0
0
0
0
1
0
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
0
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

9
8
6
5
4
3
3
2
2
2
2
4
6
7
9
11
12
14
14
14
15
15
14
13

Feels Like (°C)

6
5
4
4
3
2
2
2
2
1
2
3
5
7
8
9
10
12
12
11
11
11
10
10

Dew Point (°C)

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

Relative Humidity (%)

48
51
54
56
55
57
58
58
59
60
59
55
49
43
40
38
40
40
41
45
45
46
50
57

Pressure (mb)

1028
1029
1029
1030
1030
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1031
1030
1029
1029
1028
1028
1027
1027
1027

Ozone (du)

414
416
417
417
416
412
411
410
408
406
405
404
403
403
402
401
400
400
400
400
400
400
399
399

Thursday 30

Waxing Gibbous 99%

No Rise

05:01

20 Good
21 Good
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

Sun - Rise: 05:37, Set: 20:19, Transit: 12:59. Moon - Rise: No Rise, Set: 05:01. Civil Dark: 20:56 - 05:00. Nautical Dark: 21:43 - 04:13. Astro Dark: 22:39 - 03:16

Total Clouds (% Sky Obscured)

4
3
3
5
13
3
8
12
16
14
14
10
1
1
1
2
3
3
7
11
13
9
5
1

Low Clouds (% Sky Obscured)

4
3
2
5
11
2
7
11
15
14
14
10
1
1
1
2
2
3
7
10
13
9
5
1

Medium Clouds (% Sky Obscured)

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

High 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

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)

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

Chance of Frost

Temperature (°C)

12
11
10
9
8
7
6
5
5
5
5
6
7
9
11
13
15
16
17
17
17
17
16
15

Feels Like (°C)

9
11
9
9
7
6
6
5
5
4
5
6
7
8
9
10
11
11
12
16
16
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

62
73
77
78
78
79
80
80
80
82
82
78
68
60
52
46
43
40
36
37
39
40
45
52

Pressure (mb)

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

Ozone (du)

397
397
398
398
397
397
397
396
396
396
395
394
394
394
394
394
395
395
395
395
396
396
396
396

Friday 1

Full Moon 100%

20:38

05:20

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

Sun - Rise: 05:35, Set: 20:21, Transit: 12:59. Moon - Rise: 20:38, Set: 05:20. Civil Dark: 20:58 - 04:58. Nautical Dark: 21:45 - 04:11. Astro Dark: 22:41 - 03:13

Total Clouds (% Sky Obscured)

3
7
12
11
9
7
21
37
57
38
21
1
1
0
0
3
6
10
14
18
22
18
13
9

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
6
10
14
18
22
16
10
6

Medium Clouds (% Sky Obscured)

2
3
5
3
2
1
11
22
33
21
10
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
1
1
6
10
9
3
2
0
0
0
0
0
0
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

14
13
12
11
9
8
7
6
6
5
7
8
9
11
14
16
16
18
19
19
19
20
18
17

Feels Like (°C)

17
11
12
12
11
9
9
5
5
4
5
4
4
10
11
11
12
13
14
19
19
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

59
60
62
62
64
68
69
66
66
63
59
55
53
47
43
38
37
36
35
35
35
35
42
50

Pressure (mb)

1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1022
1021
1021
1020
1019
1019
1018
1018
1018

Ozone (du)

396
396
396
396
397
397
398
398
398
398
396
395
393
393
392
392
393
393
394
394
395
395
394
393

Saturday 2

Waning Gibbous 98%

21:50

05:44

20 Good
21 Good
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

Sun - Rise: 05:33, Set: 20:22, Transit: 12:59. Moon - Rise: 21:50, Set: 05:44. Civil Dark: 20:59 - 04:56. Nautical Dark: 21:47 - 04:08. Astro Dark: 22:44 - 03:10

Total Clouds (% Sky Obscured)

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

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1

High Clouds (% Sky Obscured)

1
1
1
1
1
2
1
1
1
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
9

Fog (%)

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

Precipitation Probability (%)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
14
13
11
11
10
9
9
8
8
9
10
12
14
16
18
20
20

Feels Like (°C)

21
15
13
13
13
13
12
9
8
8
8
8
8
13
14
15
16
16

Dew Point (°C)

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

Relative Humidity (%)

60
62
64
66
69
71
74
74
74
73
69
65
61
55
49
44
42
40

Pressure (mb)

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

Ozone (du)

393
393
393
392
392
392
391
391
392
392
391
391
390
390
390
389
388
387

Forecast for Královské Vinohrady, Praha 2, Czech Republic (50.08,14.44)

Generated: 26/04/26 20:08:33. Forecast: 26/04/26 to 02/05/26. Timezone: UTC+2.00