Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 27

Waning Crescent 13%

05:57

12:54

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

Sun - Rise: 07:56, Set: 15:58, Transit: 11:57. Moon - Rise: 05:57, Set: 12:54. Civil Dark: 16:37 - 07:17. Nautical Dark: 17:19 - 06:35. Astro Dark: 17:59 - 05:56

Total Clouds (% Sky Obscured)

11
31
38
32
7
3
8
7
47
84
77
45
53
55
91
100
90
82
86
99
100
100
99
98

Low Clouds (% Sky Obscured)

11
12
0
0
0
0
0
0
0
0
34
41
50
51
70
80
80
80
80
80
80
83
79
75

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
34
64
27
64
67

High Clouds (% Sky Obscured)

11
31
38
32
7
3
6
5
30
84
60
12
15
11
56
60
49
27
34
77
100
100
86
74

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 (%)

16
21
11
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
2
2
2
2
2
1

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)

2
1
1
1
1
1
1
2
2
2
2
2
1
1
1
0
1
1
1
1
1
1
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-15
-15
-13
-12
-12
-10
-9
-10
-10
-10
-10
-10
-10
-10
-10
-10
-9
-10
-9
-9
-10
-10
-10
-10

Relative Humidity (%)

38
37
36
35
35
37
40
42
46
48
49
50
52
52
53
53
55
56
58
58
59
59
59
60

Pressure (mb)

1038
1038
1038
1037
1036
1035
1035
1034
1034
1034
1035
1034
1034
1034
1034
1034
1034
1033
1033
1033
1033
1032
1032
1032

Ozone (du)

274
273
272
272
273
274
277
284
286
284
278
274
276
277
279
282
282
281
281
280
283
283
281
280

Saturday 28

Waning Crescent 7%

07:08

13:22

08 Bad
09 Bad
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 OK
03 OK
04 OK
05 OK
06 OK
07 OK

Sun - Rise: 07:56, Set: 15:59, Transit: 11:58. Moon - Rise: 07:08, Set: 13:22. Civil Dark: 16:38 - 07:18. Nautical Dark: 17:20 - 06:36. Astro Dark: 18:00 - 05:56

Total Clouds (% Sky Obscured)

81
51
8
5
2
2
2
3
3
3
0
0
2
2
2
3
3
8
29
37
33
27
32
33

Low Clouds (% Sky Obscured)

64
40
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)

64
30
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11

High Clouds (% Sky Obscured)

34
11
8
5
2
2
2
3
3
3
0
0
2
2
2
3
3
8
29
37
33
27
32
24

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 (%)

1
2
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)

1
1
1
2
2
2
2
2
1
1
1
1
1
1
1
2
1
1
1
2
2
2
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-10
-10
-9
-9
-8
-7
-6
-6
-7
-7
-7
-7
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8
-8

Relative Humidity (%)

60
59
55
52
51
52
57
60
63
64
64
64
63
63
62
63
62
63
63
63
64
63
64
64

Pressure (mb)

1032
1032
1032
1032
1031
1030
1030
1030
1030
1030
1031
1031
1030
1030
1030
1030
1030
1029
1029
1029
1029
1029
1029
1029

Ozone (du)

278
279
281
287
288
287
286
292
294
294
297
299
299
300
298
296
295
290
286
284
281
279
272
270

Sunday 29

Waning Crescent 3%

No Rise

14:02

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

Sun - Rise: 07:56, Set: 16:00, Transit: 11:58. Moon - Rise: No Rise, Set: 14:02. Civil Dark: 16:39 - 07:18. Nautical Dark: 17:21 - 06:36. Astro Dark: 18:00 - 05:56

Total Clouds (% Sky Obscured)

41
15
2
3
8
13
34
70
65
71
93
87
1
1
1
1
8
63
76
84
60
83
86
97

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
13
43
81
58
81
85
94

Medium Clouds (% Sky Obscured)

21
12
0
0
0
0
1
70
47
71
90
87
0
0
0
0
0
0
50
4
0
0
0
0

High Clouds (% Sky Obscured)

25
6
2
3
5
9
33
28
31
36
84
58
0
0
0
1
6
59
57
7
6
7
5
31

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-3
-4
-2
-1
-1
0
0
-2
-3
-3
-4
-5
-5
-4
-4
-4
-4
-5
-6
-7
-7
-6
-6
-6

Dew Point (°C)

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

Relative Humidity (%)

65
64
60
58
57
57
60
67
75
75
76
76
76
78
78
78
78
78
76
75
72
76
75
76

Pressure (mb)

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

Ozone (du)

271
269
270
272
274
276
275
273
269
265
268
275
286
302
321
322
320
322
318
316
314
309
308
309

Monday 30

New Moon 1%

08:10

14:56

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:56, Set: 16:01, Transit: 11:59. Moon - Rise: 08:10, Set: 14:56. Civil Dark: 16:40 - 07:18. Nautical Dark: 17:21 - 06:36. Astro Dark: 18:01 - 05:56

Total Clouds (% Sky Obscured)

98
97
100
98
100
99
99
98
99
99
100
97
100
100
100
99
97
97
100
100
100
89
82
79

Low Clouds (% Sky Obscured)

98
96
97
97
97
99
98
97
98
99
100
89
79
79
86
89
93
96
96
92
89
87
82
79

Medium Clouds (% Sky Obscured)

0
4
0
0
0
0
0
0
0
5
42
52
57
87
56
31
0
0
0
0
1
0
0
0

High Clouds (% Sky Obscured)

32
27
34
28
50
29
24
47
51
86
91
83
100
100
100
97
95
71
49
23
34
38
46
42

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
0
0
3
8
8
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 (%)

1
0
0
0
0
0
0
0
0
1
2
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
5
5
6
6
6
6
5
5
5
5
6
6
6
6
6
7
7
7
6
6
6
5
5

Chance of Frost

Temperature (°C)

-2
-2
-1
-1
0
0
1
0
0
0
0
0
0
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1
-1

Feels Like (°C)

-5
-5
-5
-5
-4
-4
-3
-3
-3
-3
-3
-4
-4
-4
-4
-5
-5
-5
-4
-5
-5
-5
-5
-4

Dew Point (°C)

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

Relative Humidity (%)

75
74
72
70
71
73
77
81
86
86
87
88
91
94
96
96
96
98
98
98
96
96
96
98

Pressure (mb)

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

Ozone (du)

304
304
306
308
307
305
305
305
303
304
307
306
306
308
303
296
294
292
293
294
293
292
295
295

Tuesday 31

Waxing Crescent 1%

08:59

16:06

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
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:56, Set: 16:02, Transit: 11:59. Moon - Rise: 08:59, Set: 16:06. Civil Dark: 16:40 - 07:18. Nautical Dark: 17:22 - 06:36. Astro Dark: 18:02 - 05:56

Total Clouds (% Sky Obscured)

71
85
90
77
84
89
94
99
97
96
100
64
58
57
62
72
84
87
93
98
99
99
100
93

Low Clouds (% Sky Obscured)

71
68
59
47
42
33
24
16
23
28
34
0
0
0
5
10
14
30
42
52
50
52
55
47

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
2
3
23
16
13
8
5
3
0
4
8
12
10
10
13
28

High Clouds (% Sky Obscured)

32
38
32
17
20
53
74
98
97
96
100
5
5
5
18
59
77
87
90
93
88
77
47
55

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
2
5
9
19

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
7
8
8
8
8
7
8
8
7
8
8
8
8
8
8
8
8
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

-4
-3
-4
-4
-3
-3
-4
-3
-4
-4
-4
-5
-4
-4
-4
-4
-4
-5
-4
-4
-4
-4
-4
-4

Dew Point (°C)

-2
-2
-2
-2
-2
-2
-2
-2
-2
-3
-3
-3
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2

Relative Humidity (%)

96
94
86
80
74
74
72
73
78
77
80
80
81
84
86
87
87
89
89
89
89
89
87
89

Pressure (mb)

1028
1027
1027
1027
1026
1025
1024
1024
1024
1024
1024
1024
1022
1021
1021
1021
1021
1021
1020
1020
1020
1020
1019
1019

Ozone (du)

295
298
305
309
310
312
318
319
318
317
318
318
317
316
315
313
310
308
306
304
302
299
295
291

Wednesday 1

Waxing Crescent 3%

09:35

17:27

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

Sun - Rise: 07:56, Set: 16:03, Transit: 12:00. Moon - Rise: 09:35, Set: 17:27. Civil Dark: 16:41 - 07:18. Nautical Dark: 17:23 - 06:36. Astro Dark: 18:03 - 05:56

Total Clouds (% Sky Obscured)

88
82
75
67
68
73
69
70
62
50
41
37
30
23
19
15
11
16
27
34
35
35
31
47

Low Clouds (% Sky Obscured)

45
42
42
42
43
42
42
38
38
38
34
31
29
23
18
9
0
10
19
33
35
35
31
47

Medium Clouds (% Sky Obscured)

63
82
75
67
64
61
59
56
46
41
35
23
12
0
0
0
0
8
17
24
35
35
31
47

High Clouds (% Sky Obscured)

75
82
75
67
68
73
69
70
62
42
21
15
7
1
11
15
11
16
27
34
35
35
31
47

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

Precipitation Probability (%)

24
27
35
40
43
50
49
45
50
50
41
46
39
3
6
4
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0.1
0.1
0
0.2
0.2
0
0.2
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

8
8
8
9
10
12
10
9
8
7
6
5
6
6
7
7
7
8
8
8
8
8
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
81
76
73
68
64
67
69
73
77
78
81
81
81
80
75
73
68
66
66
65
66
67
69

Pressure (mb)

1019
1019
1019
1018
1017
1016
1016
1016
1015
1015
1015
1014
1014
1013
1012
1012
1011
1011
1010
1010
1009
1009
1008
1008

Ozone (du)

290
289
288
287
287
287
285
284
283
286
289
292
295
298
301
301
301
301
302
304
306
304
303
301

Thursday 2

Waxing Crescent 8%

10:01

18:51

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
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:56, Set: 16:04, Transit: 12:00. Moon - Rise: 10:01, Set: 18:51. Civil Dark: 16:42 - 07:17. Nautical Dark: 17:24 - 06:36. Astro Dark: 18:04 - 05:56

Total Clouds (% Sky Obscured)

65
84
89
93
96
97
99
100
99
98
97
97
97
97
98
99
100

Low Clouds (% Sky Obscured)

50
53
60
64
67
62
57
49
53
62
67
64
61
57
68
80
90

Medium Clouds (% Sky Obscured)

32
4
28
50
69
78
86
96
88
77
68
72
77
81
77
72
75

High Clouds (% Sky Obscured)

65
84
70
41
13
42
71
100
68
36
4
35
66
97
98
99
100

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
Snow
Snow

Precipitation Probability (%)

0
0
1
5
8
10
10
10
11
11
6
13
13
11
30
39
43

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.1
0.1

Wind Speed/Direction (mph)

11
14
17
16
15
14
13
12
10
10
7
7
7
7
7
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
62
58
63
69
75
76
77
78
81
84
89
84
81
77
77
78

Pressure (mb)

1007
1007
1007
1007
1007
1006
1007
1007
1007
1007
1008
1008
1009
1009
1010
1010
1011

Ozone (du)

305
309
312
316
320
325
331
338
345
349
353
357
358
359
360
355
351

Forecast for Proruby, Náchod District, Czech Republic (50.48,15.96)

Generated: 27/12/24 08:45:22. Forecast: 27/12/24 to 02/01/25. Timezone: UTC+1.00