Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 25

Waxing Gibbous 99%

18:15

06:29

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

Sun - Rise: 06:55, Set: 18:53, Transit: 12:53. Moon - Rise: 18:15, Set: 06:29. Civil Dark: 19:25 - 06:22. Nautical Dark: 20:03 - 05:44. Astro Dark: 20:42 - 05:05

Total Clouds (% Sky Obscured)

10
18
48
93
95
99
100
100
95
77
73
84
67
28
10
24
3
10
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

10
18
48
68
54
64
51
40
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
18
48
84
89
90
99
93
94
77
62
79
63
26
9
24
2
10
0
0
0
0
0
0

High Clouds (% Sky Obscured)

5
18
21
16
35
71
65
100
86
46
45
50
10
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
56
52
47
45
43
43
45
53
59
64
69
70
71
73
76
77
78
78
80
79
79
73
61

Pressure (mb)

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

Ozone (du)

296
293
290
289
287
287
287
286
286
285
285
287
287
287
288
287
286
285
285
285
286
286
286
287

Saturday 26

Full Moon 100%

18:29

07:48

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

Sun - Rise: 06:56, Set: 18:51, Transit: 12:53. Moon - Rise: 18:29, Set: 07:48. Civil Dark: 19:23 - 06:24. Nautical Dark: 20:01 - 05:46. Astro Dark: 20:40 - 05:07

Total Clouds (% Sky Obscured)

0
0
0
0
3
2
51
97
75
46
65
11
30
82
57
85
84
88
93
93
92
96
94
95

Low Clouds (% Sky Obscured)

0
0
0
0
3
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
33
0
0
0
5
41
57
62
62
79
74
78
48
53

High Clouds (% Sky Obscured)

0
0
0
0
2
2
46
97
75
44
43
8
29
78
56
54
72
76
85
83
71
88
90
91

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
4
4
4
4
3
2
2
4
4
4
3
3
3
3
3
3
3
3
3
3
3
3
3

Chance of Frost

Temperature (°C)

14
16
18
19
20
21
21
21
20
17
16
15
14
13
12
12
11
11
10
10
9
9
10
11

Feels Like (°C)

14
16
18
19
21
22
22
19
18
15
14
14
13
13
11
10
9
8
8
8
7
7
8
10

Dew Point (°C)

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

Relative Humidity (%)

54
48
43
39
35
32
31
34
43
49
52
55
57
59
63
64
66
67
68
72
72
72
69
62

Pressure (mb)

1023
1023
1023
1022
1022
1022
1022
1022
1022
1022
1023
1023
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

288
289
288
289
289
288
286
285
285
285
284
284
283
283
284
284
284
284
284
283
282
282
284
285

Sunday 27

Waning Gibbous 98%

18:44

09:10

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

Sun - Rise: 06:58, Set: 18:48, Transit: 12:52. Moon - Rise: 18:44, Set: 09:10. Civil Dark: 19:21 - 06:25. Nautical Dark: 19:58 - 05:48. Astro Dark: 20:37 - 05:09

Total Clouds (% Sky Obscured)

95
92
92
81
81
81
80
72
67
63
73
45
21
23
12
61
25
48
32
47
61
47
54
75

Low Clouds (% Sky Obscured)

0
0
0
0
6
28
22
6
0
0
0
0
0
0
4
4
0
0
4
0
0
0
0
0

Medium Clouds (% Sky Obscured)

67
64
71
38
31
17
17
14
17
16
0
9
0
0
0
35
2
34
19
32
19
11
18
21

High Clouds (% Sky Obscured)

91
72
66
54
56
50
57
65
65
55
72
36
19
23
9
16
24
2
8
35
59
39
48
69

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

Chance of Frost

Temperature (°C)

13
15
17
19
20
21
21
20
19
17
15
14
14
13
12
11
11
11
10
10
10
10
10
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
49
45
41
37
36
36
40
47
54
58
59
61
64
66
68
69
72
72
74
76
74
72
61

Pressure (mb)

1026
1025
1025
1024
1024
1023
1023
1022
1022
1023
1023
1023
1023
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

285
285
285
285
286
286
285
285
284
285
285
286
286
286
287
286
285
284
282
281
280
280
280
279

Monday 28

Waning Gibbous 93%

19:01

No Set

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

Sun - Rise: 06:59, Set: 18:46, Transit: 12:52. Moon - Rise: 19:01, Set: No Set. Civil Dark: 19:18 - 06:27. Nautical Dark: 19:56 - 05:49. Astro Dark: 20:35 - 05:11

Total Clouds (% Sky Obscured)

76
68
63
59
61
61
62
53
42
28
21
13
5
8
13
17
13
8
6
8
21
20
27
28

Low Clouds (% Sky Obscured)

0
0
0
0
4
8
10
6
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

26
25
23
20
25
31
34
29
25
20
15
8
1
3
8
12
8
3
0
0
0
0
0
0

High Clouds (% Sky Obscured)

74
56
38
27
20
12
10
8
6
2
4
5
5
3
3
3
3
2
6
8
21
20
20
20

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
15
16
18
19
20
20
21
19
18
17
15
15
14
14
13
12
12
11
10
10
9
10
11

Dew Point (°C)

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

Relative Humidity (%)

53
48
44
39
36
35
34
38
46
52
55
57
57
61
63
64
67
67
70
70
70
69
66
56

Pressure (mb)

1024
1024
1024
1024
1023
1023
1023
1022
1023
1023
1023
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1026
1026
1026

Ozone (du)

279
279
278
277
276
276
276
276
276
275
276
276
277
277
277
277
277
277
276
276
276
276
277
278

Tuesday 29

Waning Gibbous 86%

19:24

10:35

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

Sun - Rise: 07:01, Set: 18:44, Transit: 12:52. Moon - Rise: 19:24, Set: 10:35. Civil Dark: 19:16 - 06:28. Nautical Dark: 19:54 - 05:51. Astro Dark: 20:33 - 05:12

Total Clouds (% Sky Obscured)

23
4
4
4
8
9
11
16
23
4
3
2
2
2
2
2
2
3
3
9
14
19
16
11

Low Clouds (% Sky Obscured)

0
0
0
0
3
6
9
6
3
0
0
0
0
0
0
0
0
0
0
6
13
19
13
6

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)

17
2
2
2
4
4
4
10
18
3
2
2
2
2
2
1
1
1
1
6
12
14
12
11

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
6
7
8
9
10
10
9
7
6
5
5
4
4
4
4
4
4
4
4
5
5
5
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
41
35
32
30
28
28
32
38
43
47
49
51
54
56
61
63
64
66
67
66
65
66
54

Pressure (mb)

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

Ozone (du)

278
278
278
278
278
278
278
279
280
280
280
280
279
279
280
280
280
280
280
280
281
281
281
281

Wednesday 30

Waning Gibbous 77%

19:55

12:01

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

Sun - Rise: 07:02, Set: 18:42, Transit: 12:51. Moon - Rise: 19:55, Set: 12:01. Civil Dark: 19:14 - 06:30. Nautical Dark: 19:52 - 05:52. Astro Dark: 20:30 - 05:14

Total Clouds (% Sky Obscured)

8
16
22
26
20
11
2
2
2
2
3
5
6
8
11
13
13
15
14
18
22
25
19
12

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
5
11
13
13
15
14
11
6
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)

8
16
22
26
20
11
1
1
1
1
1
2
3
3
4
4
5
3
3
5
7
10
11
8

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
13
14
15
21
19
19
19
19
19
12
13
13
12
12
12
9
9
9
9
9
9
8

Dew Point (°C)

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

Relative Humidity (%)

46
39
35
33
29
30
32
33
37
42
48
51
53
55
56
56
57
57
58
58
57
57
57
46

Pressure (mb)

1028
1028
1028
1027
1027
1026
1026
1026
1026
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028
1028

Ozone (du)

281
281
282
283
284
284
284
285
284
283
283
283
283
283
282
282
282
281
281
281
281
282
282
282

Thursday 1

Waning Gibbous 66%

20:39

13:23

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

Sun - Rise: 07:04, Set: 18:40, Transit: 12:51. Moon - Rise: 20:39, Set: 13:23. Civil Dark: 19:12 - 06:32. Nautical Dark: 19:50 - 05:54. Astro Dark: 20:28 - 05:16

Total Clouds (% Sky Obscured)

6
7
9
13
10
8
7
11
14
14
11
10
8
4
2
1
1
2
2
21
40
59

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
4
6

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

High Clouds (% Sky Obscured)

4
6
8
8
4
6
5
11
14
14
11
10
8
4
2
1
1
2
2
15
31
49

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 (%)

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

Wind Speed/Direction (mph)

10
11
12
12
13
12
12
11
10
8
7
6
6
6
6
5
5
5
4
4
4
4

Chance of Frost

Temperature (°C)

15
17
19
21
22
22
22
22
20
18
15
14
13
12
11
11
10
9
9
8
8
8

Feels Like (°C)

8
9
11
12
13
20
19
18
18
18
18
11
11
11
10
10
9
8
8
8
8
7

Dew Point (°C)

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

Relative Humidity (%)

38
32
28
25
23
25
26
28
32
37
42
43
45
47
50
51
54
56
58
59
60
60

Pressure (mb)

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

Ozone (du)

282
282
283
283
284
284
284
284
284
285
285
285
285
284
284
284
284
284
284
284
285
285

Forecast for Letňany, Praha 18, Czech Republic (50.14,14.52)

Generated: 25/09/26 10:31:39. Forecast: 25/09/26 to 01/10/26. Timezone: UTC+2.00