Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 29

Waxing Gibbous 88%

12:43

06:12

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: 08:25, Set: 17:24, Transit: 12:55. Moon - Rise: 12:43, Set: 06:12. Civil Dark: 18:01 - 07:48. Nautical Dark: 18:42 - 07:07. Astro Dark: 19:22 - 06:28

Total Clouds (% Sky Obscured)

100
100
100
98
93
98
100
98
100
100
100
100
100
100
100
100
100
100
100
100
98
96
89
84

Low Clouds (% Sky Obscured)

85
79
80
81
86
97
100
96
100
100
100
100
100
100
100
100
100
100
100
100
98
96
89
84

Medium Clouds (% Sky Obscured)

100
100
93
80
44
23
20
21
20
15
21
70
57
70
89
93
32
3
3
3
3
2
2
0

High Clouds (% Sky Obscured)

39
53
10
14
10
10
21
29
20
20
80
100
93
100
79
29
35
14
14
4
0
0
0
0

ISS Passover

Visibility (miles)

0
0
4
9
9
9
9
9
9
9
9
9
9
9
7
2
0
0
0
0
1
7
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

Snow
Snow
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

70
61
42
24
12
5
3
2
2
2
8
14
4
5
3
14
7
14
5
2
11
2
2
0

Precipitation Amount (mm)

0.5
0.5
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
7
7
6
7
7
6
6
6
5
5
4
4
4
4
5
5
5
6
5
6
7
7
8

Chance of Frost

Temperature (°C)

-1
-1
-0
-0
-0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

Feels Like (°C)

-4
-4
-4
-4
-4
-4
-3
-3
-3
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-2
-3
-2
-2
-2

Dew Point (°C)

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

Relative Humidity (%)

96
94
92
91
87
86
84
80
80
78
83
84
86
88
88
88
89
88
88
89
91
92
94
94

Pressure (mb)

1000
1000
1000
1001
1001
1001
1001
1001
1000
1000
1001
1000
1000
1000
1000
1000
1000
1000
999
999
999
998
998
998

Ozone (du)

475
472
465
463
463
466
467
465
463
462
462
455
438
419
399
397
394
383
384
385
384
382
380
383

Friday 30

Waxing Gibbous 95%

13:53

07:16

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: 08:24, Set: 17:26, Transit: 12:55. Moon - Rise: 13:53, Set: 07:16. Civil Dark: 18:03 - 07:47. Nautical Dark: 18:44 - 07:06. Astro Dark: 19:23 - 06:26

Total Clouds (% Sky Obscured)

86
83
84
92
93
80
66
49
51
60
81
89
97
97
96
100
91
90
80
88
95
97
100
100

Low Clouds (% Sky Obscured)

86
80
78
88
91
80
66
49
35
35
67
67
92
92
91
100
75
78
53
76
88
79
95
82

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
2
11
45
46
25
66
43
25
36
49
36
79
73
66
85
92
99
70

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
10
5
2
5
100
87

ISS Passover

Visibility (miles)

0
0
2
9
9
9
9
9
9
9
9
7
9
9
9
9
9
9
9
9
8
6
8
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
Light Rain
Very Light Rain
Very Light Rain
None

Precipitation Probability (%)

0
0
1
0
0
0
0
1
15
25
33
38
22
22
19
22
12
4
21
40
67
66
63
44

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0.3
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

1
1
1
1
1
1
2
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
96
96
94
89
84
82
77
79
85
89
93
91
91
89
89
89
91
91
91
91
93
91
91

Pressure (mb)

998
998
998
998
998
997
997
997
996
996
995
995
995
995
995
995
995
995
995
995
995
995
995
995

Ozone (du)

385
389
393
398
403
404
405
403
403
408
411
412
414
418
417
417
418
416
416
415
413
412
414
417

Saturday 31

Waxing Gibbous 99%

15:19

08:01

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: 08:22, Set: 17:28, Transit: 12:55. Moon - Rise: 15:19, Set: 08:01. Civil Dark: 18:04 - 07:46. Nautical Dark: 18:45 - 07:05. Astro Dark: 19:25 - 06:25

Total Clouds (% Sky Obscured)

100
79
73
57
94
85
91
96
88
86
64
73
91
76
76
68
65
67
71
66
66
68
93
83

Low Clouds (% Sky Obscured)

83
76
68
49
72
76
86
95
81
78
51
63
79
64
66
59
61
53
49
50
56
63
75
80

Medium Clouds (% Sky Obscured)

66
1
1
0
75
59
54
45
38
35
17
38
55
38
38
29
33
40
39
39
38
37
37
37

High Clouds (% Sky Obscured)

70
1
0
0
1
5
8
0
0
0
0
1
4
3
3
2
3
0
10
7
3
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 (%)

26
6
3
3
2
0
0
1
6
0
1
1
9
2
9
15
11
4
4
6
7
3
10
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
93
93
86
82
77
74
73
75
81
87
87
88
88
90
90
89
91
89
91
91
91

Pressure (mb)

996
996
997
998
999
999
1000
1000
1000
1001
1001
1002
1003
1003
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004

Ozone (du)

421
421
421
428
430
433
433
432
432
433
434
436
438
442
445
447
445
445
447
445
438
444
459
460

Sunday 1

Full Moon 100%

16:51

08:30

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: 08:21, Set: 17:29, Transit: 12:55. Moon - Rise: 16:51, Set: 08:30. Civil Dark: 18:06 - 07:44. Nautical Dark: 18:47 - 07:03. Astro Dark: 19:26 - 06:24

Total Clouds (% Sky Obscured)

73
84
97
99
99
100
100
98
97
96
96
97
97
97
97
97
98
99
100
100
99
99
98
96

Low Clouds (% Sky Obscured)

73
84
95
98
97
95
92
92
91
91
86
80
74
71
68
67
66
65
64
66
69
71
74
74

Medium Clouds (% Sky Obscured)

30
30
31
31
51
97
95
43
76
24
31
36
36
40
45
45
48
48
62
96
66
78
94
90

High Clouds (% Sky Obscured)

0
17
8
35
40
40
30
2
0
0
0
0
0
18
37
55
65
74
83
55
28
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 (%)

5
5
12
21
23
31
37
31
26
22
16
11
19
20
13
6
15
7
3
11
7
5
7
10

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
8
8
8
8
8
8
7
7
7
7
7
8
7
8
8
8
9
9
10
10
10
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
93
91
89
88
86
85
85
87
87
85
87
87
88
88
90
88
85
85
85
85
86
85
85

Pressure (mb)

1004
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1003
1004
1004
1003
1003
1003
1003
1002
1002
1001
1001
1000

Ozone (du)

454
428
410
397
392
394
394
390
385
383
383
376
373
374
375
375
376
374
374
371
369
367
363
363

Monday 2

Waning Gibbous 98%

18:20

08:50

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: 08:19, Set: 17:31, Transit: 12:55. Moon - Rise: 18:20, Set: 08:50. Civil Dark: 18:08 - 07:43. Nautical Dark: 18:48 - 07:02. Astro Dark: 19:28 - 06:23

Total Clouds (% Sky Obscured)

95
95
96
96
91
86
80
84
89
94
95
96
97
70
70
70
73
77
81
73
64
60
69
78

Low Clouds (% Sky Obscured)

68
72
78
82
79
69
63
70
73
80
78
82
81
56
58
60
67
73
80
72
64
57
64
71

Medium Clouds (% Sky Obscured)

86
75
88
90
79
67
55
61
74
84
87
89
92
70
70
70
73
64
58
51
44
38
52
74

High Clouds (% Sky Obscured)

0
0
0
0
0
0
5
5
5
5
5
5
5
30
40
40
45
45
50
50
50
60
59
53

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
7
7
8
8
8
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

5
10
11
6
4
3
1
4
3
1
9
11
28
39
47
56
51
45
37
34
27
9
7
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
82
82
80
77
73
70
66
65
64
65
67
67
82
82
79
78
80
83
86
89
93
94
96

Pressure (mb)

1000
999
999
999
998
998
998
997
996
996
995
995
995
995
998
998
998
998
998
999
998
998
998
998

Ozone (du)

363
363
362
362
362
362
362
362
360
361
361
361
362
364
366
368
370
372
373
375
378
381
383
385

Tuesday 3

Waning Gibbous 94%

19:44

09:04

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: 08:18, Set: 17:33, Transit: 12:55. Moon - Rise: 19:44, Set: 09:04. Civil Dark: 18:09 - 07:41. Nautical Dark: 18:50 - 07:01. Astro Dark: 19:29 - 06:21

Total Clouds (% Sky Obscured)

88
92
96
99
99
98
97
98
99
100
100
99
99
99
100
100
99
99
98
98
99
100
97
92

Low Clouds (% Sky Obscured)

79
69
60
45
33
23
15
25
33
42
44
42
48
45
41
33
41
40
39
48
58
59
63
68

Medium Clouds (% Sky Obscured)

85
75
80
75
79
85
97
96
96
98
96
92
87
82
78
74
73
79
82
88
90
90
84
79

High Clouds (% Sky Obscured)

47
64
82
99
86
70
56
70
79
100
99
99
98
78
56
35
56
78
98
98
99
100
90
80

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
Snow
Snow

Precipitation Probability (%)

0
0
0
0
0
0
0
7
10
11
19
21
21
19
16
12
21
27
31
34
35
34
38
40

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
0.1
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

3
3
3
3
3
3
3
3
3
3
2
2
2
2
2
2
3
3
2
2
3
2
2
3

Relative Humidity (%)

96
96
94
93
93
86
81
76
75
75
75
79
83
88
88
89
93
93
94
94
94
93
93
94

Pressure (mb)

998
998
998
998
998
998
998
998
998
998
997
997
997
998
998
998
998
998
998
998
998
997
997
997

Ozone (du)

387
389
391
393
395
397
398
400
404
407
411
415
419
423
425
426
428
429
431
432
435
438
442
449

Wednesday 4

Waning Gibbous 88%

21:05

09:16

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: 08:16, Set: 17:35, Transit: 12:55. Moon - Rise: 21:05, Set: 09:16. Civil Dark: 18:11 - 07:40. Nautical Dark: 18:52 - 06:59. Astro Dark: 19:31 - 06:20

Total Clouds (% Sky Obscured)

82
70
59
46
52
58
64
79
90
98
93
88
82
84
86
88
87
85
83

Low Clouds (% Sky Obscured)

74
70
59
46
52
58
64
69
75
76
65
61
54
56
59
61
53
46
38

Medium Clouds (% Sky Obscured)

66
59
57
45
39
32
28
36
40
49
53
56
60
68
77
86
87
85
83

High Clouds (% Sky Obscured)

71
56
42
27
20
15
14
22
24
19
20
20
15
15
15
15
10
10
10

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 (%)

42
37
34
29
27
20
3
6
7
5
6
5
3
6
8
5
10
8
3

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
91
89
88
81
75
70
70
71
71
73
75
75
75
76
76
75
75

Pressure (mb)

996
996
996
996
996
996
995
995
994
994
993
993
993
993
992
992
992
992
992

Ozone (du)

456
463
462
461
461
464
467
470
465
459
454
450
446
442
440
438
436
436
436

Forecast for Leiden, Gemeente Leiden, Netherlands (52.16,4.50)

Generated: 29/01/26 06:51:30. Forecast: 29/01/26 to 04/02/26. Timezone: UTC+1.00