Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 26

First Quarter 56%

10:55

03:18

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: 08:27, Set: 17:16, Transit: 12:52. Moon - Rise: 10:55, Set: 03:18. Civil Dark: 17:54 - 07:48. Nautical Dark: 18:35 - 07:07. Astro Dark: 19:15 - 06:28

Total Clouds (% Sky Obscured)

82
89
93
94
90
84
91
93
85
96
93
100
81
91
72
67
63
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

72
89
78
94
90
84
91
93
85
90
93
86
79
83
72
64
63
60
48
56
60
61
74
74

Medium Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
0
0
0
67
82
100
65
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
58
41
93
33
65
14
21
10
100
100
100
100
100
100
100

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
87
80
77
76
76
77
77
79
81
80
81
80
83
83
83
83
84
91
89
91
92
92
91

Pressure (mb)

1001
1002
1002
1002
1003
1002
1002
1003
1003
1003
1004
1004
1004
1004
1004
1003
1003
1002
1002
1002
1001
1000
999
998

Ozone (du)

437
436
438
441
442
448
448
440
432
431
431
431
431
441
444
434
427
414
405
393
385
381
377
373

Tuesday 27

Waxing Gibbous 68%

11:17

04:48

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: 08:26, Set: 17:18, Transit: 12:52. Moon - Rise: 11:17, Set: 04:48. Civil Dark: 17:55 - 07:47. Nautical Dark: 18:36 - 07:06. Astro Dark: 19:16 - 06:26

Total Clouds (% Sky Obscured)

100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
92
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
61
47
35
46
40
100
100
100
83
63
54
53
73
77
77
78
89
78
67
60
61
83
98

Medium Clouds (% Sky Obscured)

91
93
98
98
100
100
100
100
100
100
90
96
88
99
100
19
55
40
36
100
76
78
90
100

High Clouds (% Sky Obscured)

100
70
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
17
39
100
100
100
100
96

ISS Passover

Visibility (miles)

9
9
9
9
9
9
6
3
3
8
8
6
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
43
40
77
47

Precipitation Type

None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
1
5
16
48
95
95
95
95
56
49
37
18
4
0
4
1
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0.7
1.4
1.4
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
13
15
15
15
15
14
13
12
11
9
8
7
6
6
5
6
6
5
5
6
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
89
86
81
79
76
79
89
93
93
94
96
98
98
98
98
94
94
94
93
94
94
94
93

Pressure (mb)

997
997
996
994
993
992
991
991
991
991
991
991
992
992
993
993
993
994
995
995
995
996
996
996

Ozone (du)

373
374
372
369
366
364
363
363
364
362
361
362
362
365
365
365
365
367
370
371
373
374
377
380

Wednesday 28

Waxing Gibbous 79%

11:50

06:09

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: 08:24, Set: 17:20, Transit: 12:52. Moon - Rise: 11:50, Set: 06:09. Civil Dark: 17:57 - 07:46. Nautical Dark: 18:38 - 07:05. Astro Dark: 19:18 - 06:25

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
95
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

94
100
93
98
92
92
100
95
95
95
90
86
86
90
95
83
69
67
72
75
76
77
78
85

Medium Clouds (% Sky Obscured)

100
100
85
100
100
100
100
100
100
95
95
100
100
100
100
81
85
90
95
100
86
71
65
63

High Clouds (% Sky Obscured)

100
100
95
28
65
100
100
100
100
100
100
100
100
100
56
56
100
100
100
100
100
100
100
44

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 (%)

39
52
2
2
3
7
6
3
2
1
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
1
2
2
2
2
2
1
2
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
91
88
83
82
82
83
88
91
93
94
94
94
96
96
94
93
94
92
89
86
87
89

Pressure (mb)

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

Ozone (du)

386
400
410
417
431
440
444
448
454
458
458
461
463
463
464
459
454
449
448
449
458
463
470
473

Thursday 29

Waxing Gibbous 88%

12:41

07:13

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: 08:23, Set: 17:22, Transit: 12:52. Moon - Rise: 12:41, Set: 07:13. Civil Dark: 17:59 - 07:44. Nautical Dark: 18:40 - 07:04. Astro Dark: 19:19 - 06:24

Total Clouds (% Sky Obscured)

99
98
92
86
78
68
60
49
50
52
58
66
74
76
72
50
40
53
85
100
100
100
97
88

Low Clouds (% Sky Obscured)

90
95
89
83
75
62
48
32
39
46
53
41
28
16
10
5
0
8
16
22
40
56
74
74

Medium Clouds (% Sky Obscured)

61
54
7
1
0
1
3
5
4
2
0
14
34
42
38
34
27
41
55
84
99
98
93
65

High Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
33
68
100
89
80
68
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
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
1
0
0
0
0
1
1
1
0
1
0
0
0
0
0
0
0
0
0
13
20
25
25

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
88
84
80
81
79
77
79
82
83
80
80
82
85
88
89
91
91
91
93
91
91
93
93

Pressure (mb)

1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
999
999
999
999
998
998
998
998
998
997
997

Ozone (du)

472
475
478
478
479
475
473
473
465
452
429
394
376
365
362
364
366
370
374
376
376
372
371
372

Friday 30

Waxing Gibbous 95%

13:51

07:58

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: 08:21, Set: 17:23, Transit: 12:52. Moon - Rise: 13:51, Set: 07:58. Civil Dark: 18:00 - 07:43. Nautical Dark: 18:41 - 07:02. Astro Dark: 19:21 - 06:23

Total Clouds (% Sky Obscured)

95
92
75
75
67
71
76
83
67
54
42
93
96
100
97
95
92
89
87
85
87
86
85
89

Low Clouds (% Sky Obscured)

73
81
75
67
57
61
69
74
63
54
42
78
77
79
81
84
88
88
86
83
84
84
84
82

Medium Clouds (% Sky Obscured)

59
39
3
33
10
37
44
45
23
32
4
19
21
19
25
33
36
48
60
72
70
67
64
54

High Clouds (% Sky Obscured)

25
4
6
9
11
8
4
5
0
0
0
39
67
87
61
36
10
12
18
20
41
34
16
41

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

22
5
3
1
1
7
17
26
23
28
15
37
44
42
34
26
24
33
48
65
69
58
42
38

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
91
86
82
78
76
79
85
89
93
93
93
93
93
94
94
94
94
94
94
93
93
91

Pressure (mb)

997
997
997
997
997
997
996
996
996
996
996
996
994
994
994
994
994
994
994
995
995
995
995
995

Ozone (du)

375
377
378
379
380
381
382
390
394
396
401
406
406
405
405
404
403
403
405
408
411
414
417
420

Saturday 31

Waxing Gibbous 99%

15:17

07:58

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: 08:20, Set: 17:25, Transit: 12:52. Moon - Rise: 15:17, Set: 07:58. Civil Dark: 18:02 - 07:42. Nautical Dark: 18:43 - 07:01. Astro Dark: 19:22 - 06:21

Total Clouds (% Sky Obscured)

95
100
99
97
96
94
95
100
98
96
93
94
96
99
91
83
73
66
62
52
67
82
98
93

Low Clouds (% Sky Obscured)

78
80
78
69
57
53
51
50
64
79
93
89
87
80
76
73
70
66
62
52
67
82
97
91

Medium Clouds (% Sky Obscured)

47
35
37
38
45
39
37
41
40
33
27
36
46
57
52
44
35
30
35
39
46
47
53
52

High Clouds (% Sky Obscured)

64
87
85
81
77
83
89
94
74
56
37
30
23
17
17
13
8
13
14
15
15
10
14
22

ISS Passover

Visibility (miles)

8
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 (%)

36
29
29
25
21
18
11
10
11
9
5
13
11
2
9
9
0
0
1
0
1
3
1
5

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
8
8
9
9
8
7
7
7
7
7
7
7
6
6
7
7
7
7
7
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
90
87
84
82
82
82
81
82
84
85
85
85
86
86
85
85
85
83
83
81
81
83

Pressure (mb)

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

Ozone (du)

420
421
422
424
425
427
427
426
426
427
429
430
431
432
432
431
430
429
427
425
424
426
428
430

Sunday 1

Full Moon 100%

16:48

08:27

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 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 08:18, Set: 17:27, Transit: 12:53. Moon - Rise: 16:48, Set: 08:27. Civil Dark: 18:04 - 07:40. Nautical Dark: 18:44 - 07:00. Astro Dark: 19:24 - 06:20

Total Clouds (% Sky Obscured)

89
83
89
94
100
99
99
98
99
99
100
83
67
50
67
81
95

Low Clouds (% Sky Obscured)

86
80
84
87
91
92
92
92
89
87
83
71
59
47
57
68
79

Medium Clouds (% Sky Obscured)

60
49
63
78
93
82
72
62
63
57
50
34
18
2
13
21
35

High Clouds (% Sky Obscured)

25
28
34
51
70
59
40
26
20
16
13
8
3
1
0
0
0

ISS Passover

Visibility (miles)

9
9
9
8
6
4
3
1
0
3
6
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
None
None

Precipitation Probability (%)

7
6
7
8
5
11
14
13
13
19
26
32
33
28
22
16
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
81
83
83
83
84
88
93
94
91
89
86
86
88
88
88
89

Pressure (mb)

1005
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006
1006

Ozone (du)

430
431
431
438
444
451
453
455
457
444
432
420
416
413
409
405
402

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

Generated: 26/01/26 07:51:46. Forecast: 26/01/26 to 01/02/26. Timezone: UTC+1.00