Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 19

Waxing Crescent 1%

09:22

17:40

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

Sun - Rise: 08:36, Set: 17:04, Transit: 12:50. Moon - Rise: 09:22, Set: 17:40. Civil Dark: 17:42 - 07:57. Nautical Dark: 18:24 - 07:15. Astro Dark: 19:05 - 06:35

Total Clouds (% Sky Obscured)

99
94
95
92
100
100
100
100
100
96
100
99
100
99
78
46
54
76
75
72
73
77
61
78

Low Clouds (% Sky Obscured)

65
52
45
32
29
16
0
3
0
0
0
1
1
0
0
5
13
11
7
0
0
0
9
12

Medium Clouds (% Sky Obscured)

73
82
87
90
100
100
100
100
100
96
100
99
100
99
78
46
54
42
40
46
43
40
45
70

High Clouds (% Sky Obscured)

8
1
2
1
2
1
0
0
1
2
14
58
93
97
32
26
10
6
1
2
15
40
13
12

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
1
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
1
3
3
2
9
16
15
2
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
5
5
5
5
5
5
5
5
5
5
5
6
6
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
88
82
79
78
76
79
80
83
82
82
82
83
85
86
88
88
89
89
89
91

Pressure (mb)

1018
1018
1018
1018
1018
1019
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018

Ozone (du)

379
378
375
374
375
375
374
371
368
367
367
367
367
367
366
368
367
367
366
365
363
363
362
361

Tuesday 20

Waxing Crescent 3%

09:39

19:00

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

Sun - Rise: 08:35, Set: 17:06, Transit: 12:50. Moon - Rise: 09:39, Set: 19:00. Civil Dark: 17:44 - 07:56. Nautical Dark: 18:26 - 07:15. Astro Dark: 19:06 - 06:34

Total Clouds (% Sky Obscured)

72
72
56
60
19
27
33
37
58
45
10
9
73
49
35
27
33
38
50
49
59
100
100
100

Low Clouds (% Sky Obscured)

13
21
8
0
0
3
0
0
0
0
0
0
0
0
31
0
11
14
13
18
17
15
9
4

Medium Clouds (% Sky Obscured)

66
38
45
30
11
8
2
2
2
0
0
0
50
14
0
0
0
0
3
0
0
0
0
0

High Clouds (% Sky Obscured)

15
10
9
32
3
16
24
37
57
45
10
7
36
35
3
13
11
13
34
31
47
91
92
97

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
7
7
7
8
7
6
6
7
7
7
7
6
6
6
6
6
6
6
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
91
89
83
78
75
74
77
81
86
88
86
88
89
89
91
91
91
91
91
91
93

Pressure (mb)

1018
1018
1018
1019
1019
1018
1018
1017
1016
1016
1015
1015
1014
1014
1013
1013
1013
1012
1011
1011
1010
1009
1008
1007

Ozone (du)

361
360
357
358
359
360
361
359
360
362
364
363
363
367
370
372
372
372
372
372
373
371
369
369

Wednesday 21

Waxing Crescent 8%

09:53

20:20

06 Bad
07 Bad
08 Bad
09 Bad
10 OK
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 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 08:34, Set: 17:07, Transit: 12:50. Moon - Rise: 09:53, Set: 20:20. Civil Dark: 17:45 - 07:55. Nautical Dark: 18:27 - 07:14. Astro Dark: 19:07 - 06:34

Total Clouds (% Sky Obscured)

100
100
100
100
22
9
27
100
100
100
100
100
100
100
100
97
84
55
85
91
95
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
4
3
0
15
49
63
63
67
56
25
6
29
16
38
55
75
79
83

Medium Clouds (% Sky Obscured)

0
2
1
25
22
9
23
39
78
94
100
100
100
100
100
71
57
50
66
76
87
97
81
54

High Clouds (% Sky Obscured)

100
95
100
100
22
9
27
100
100
100
100
100
100
100
100
95
84
31
67
75
87
95
97
99

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 (%)

2
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
0
0
1
11
17
22
26
27

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)

7
8
9
9
9
9
10
9
9
9
9
9
10
10
10
9
10
9
9
9
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
88
86
81
80
77
76
76
76
79
80
80
77
77
80
82
82
83
83
83
82
82
83

Pressure (mb)

1006
1006
1005
1004
1004
1003
1002
1001
1001
1000
999
999
999
998
998
998
997
997
996
996
996
995
995
995

Ozone (du)

374
371
368
367
368
367
361
354
348
344
343
340
340
341
341
342
342
344
344
345
345
347
349
350

Thursday 22

Waxing Crescent 15%

10:04

21:39

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

Sun - Rise: 08:32, Set: 17:09, Transit: 12:51. Moon - Rise: 10:04, Set: 21:39. Civil Dark: 17:47 - 07:54. Nautical Dark: 18:29 - 07:13. Astro Dark: 19:09 - 06:33

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
99
100
100
100
100
100
100
100
100
92
84
76
72
66
64
75
83

Low Clouds (% Sky Obscured)

87
76
76
76
72
79
78
73
70
66
68
70
72
70
68
67
56
46
36
38
43
47
50
52

Medium Clouds (% Sky Obscured)

42
43
88
91
77
91
99
99
100
100
100
100
100
97
94
92
81
71
65
57
52
51
62
50

High Clouds (% Sky Obscured)

100
100
100
99
90
80
68
74
83
100
100
100
100
99
97
96
72
48
24
16
13
5
15
26

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 (%)

27
21
17
15
16
15
12
14
13
10
11
13
16
20
17
29
30
35
15
9
7
3
3
6

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
9
9
9
9
10
10
10
10
10
10
10
11
11
11
11
11
10
10
10
10
10
10
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
85
83
82
77
76
78
74
73
77
79
78
72
68
67
68
75
76
76
75
73
73
73
75

Pressure (mb)

995
995
995
995
995
995
995
995
995
995
995
996
996
996
996
996
996
996
996
996
996
996
996
996

Ozone (du)

351
354
352
349
347
349
349
352
355
361
369
374
375
377
380
385
387
385
381
377
376
379
382
384

Friday 23

Waxing Crescent 23%

10:15

23:00

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

Sun - Rise: 08:31, Set: 17:11, Transit: 12:51. Moon - Rise: 10:15, Set: 23:00. Civil Dark: 17:49 - 07:53. Nautical Dark: 18:30 - 07:12. Astro Dark: 19:10 - 06:32

Total Clouds (% Sky Obscured)

93
95
97
100
100
100
100
89
77
67
52
39
29
79
75
69
51
33
14
15
20
25
35
35

Low Clouds (% Sky Obscured)

52
58
65
68
70
74
77
59
44
30
24
19
21
61
63
63
43
24
14
15
20
25
35
35

Medium Clouds (% Sky Obscured)

42
48
54
59
65
72
95
88
50
34
23
23
29
69
68
69
51
33
14
15
20
25
35
35

High Clouds (% Sky Obscured)

33
51
70
88
92
96
100
67
33
5
0
0
0
4
9
10
11
12
13
15
20
25
35
35

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 (%)

12
5
8
8
19
6
6
3
2
0
1
2
1
7
7
2
4
6
5
13
18
12
29
36

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)

10
10
10
9
9
8
9
9
9
8
8
7
7
7
8
8
8
8
8
8
8
8
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

76
79
80
85
88
90
85
79
75
74
78
84
86
85
86
88
88
85
85
82
83
85
83
86

Pressure (mb)

996
996
996
996
997
997
997
997
997
998
998
998
998
998
1000
1001
1001
1001
1001
1001
1001
1001
1001
1001

Ozone (du)

384
384
378
376
372
366
363
364
364
364
363
361
360
360
359
359
359
359
360
361
362
362
363
363

Saturday 24

Waxing Crescent 33%

10:26

00:22

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

Sun - Rise: 08:30, Set: 17:13, Transit: 12:51. Moon - Rise: 10:26, Set: 00:22. Civil Dark: 17:50 - 07:52. Nautical Dark: 18:32 - 07:11. Astro Dark: 19:12 - 06:31

Total Clouds (% Sky Obscured)

30
37
50
62
60
64
67
74
86
88
88
89
88
86
86
85
82
82
80
84
89
92
94
95

Low Clouds (% Sky Obscured)

30
37
50
62
60
64
67
74
85
88
88
89
88
86
86
85
82
82
80
84
89
92
93
91

Medium Clouds (% Sky Obscured)

30
37
50
62
60
52
34
28
22
14
21
30
38
40
40
40
40
35
35
31
37
42
54
61

High Clouds (% Sky Obscured)

25
30
35
30
21
18
15
25
25
14
5
5
5
5
5
5
10
10
10
15
15
15
15
10

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 (%)

42
40
35
23
24
20
3
7
10
3
5
8
2
3
3
0
1
2
2
6
8
8
10
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
89
88
86
86
83
80
76
76
76
76
76
77
77
76
74
73
73
71
72
72
74
74
74

Pressure (mb)

1001
1001
1001
1002
1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1004
1004
1004
1005
1005
1005
1005
1005

Ozone (du)

364
365
367
369
371
372
372
373
373
373
374
374
374
374
376
377
378
378
378
379
380
381
382
382

Sunday 25

Waxing Crescent 45%

10:39

01:49

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
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:28, Set: 17:14, Transit: 12:51. Moon - Rise: 10:39, Set: 01:49. Civil Dark: 17:52 - 07:51. Nautical Dark: 18:33 - 07:10. Astro Dark: 19:13 - 06:30

Total Clouds (% Sky Obscured)

96
96
96
96
95
93
92
84
73
62
74
86
98
97
95
93
94
95
95

Low Clouds (% Sky Obscured)

91
89
88
89
80
71
61
53
43
33
51
69
91
90
89
88
87
86
81

Medium Clouds (% Sky Obscured)

70
71
78
73
77
80
84
80
73
62
74
86
95
81
68
54
53
50
50

High Clouds (% Sky Obscured)

15
25
30
35
40
55
70
75
70
62
65
65
65
58
37
36
51
66
86

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
8
6
1
2
1
0
1
1
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

Wind Speed/Direction (mph)

8
8
8
8
8
8
8
8
8
8
8
7
7
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5
-5

Relative Humidity (%)

74
74
74
72
71
68
66
64
64
65
65
67
69
71
74
75
77
77
78

Pressure (mb)

1005
1006
1006
1007
1007
1007
1007
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010
1010
1010

Ozone (du)

383
383
384
385
385
386
387
388
387
386
385
385
385
385
385
386
386
387
387

Forecast for Utrecht, Gemeente Utrecht, Netherlands (52.09,5.12)

Generated: 19/01/26 05:51:23. Forecast: 19/01/26 to 25/01/26. Timezone: UTC+1.00