Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 25

Waning Gibbous 96%

23:13

06:53

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:17, Set: 20:55, Transit: 13:37. Moon - Rise: 23:13, Set: 06:53. Civil Dark: 21:33 - 05:39. Nautical Dark: 22:21 - 04:50. Astro Dark: 23:20 - 03:50

Total Clouds (% Sky Obscured)

100
100
100
100
96
97
100
100
100
100
100
99
99
95
100
100
100
98
98
98
100
96
97
99

Low Clouds (% Sky Obscured)

100
95
95
66
61
50
76
96
97
94
93
87
86
83
84
66
68
66
73
90
87
80
80
74

Medium Clouds (% Sky Obscured)

100
100
100
95
87
93
100
100
100
100
100
92
92
64
63
90
95
89
71
56
63
53
53
93

High Clouds (% Sky Obscured)

100
96
81
33
2
0
0
1
4
2
4
5
41
35
40
14
28
13
4
4
5
12
13
78

ISS Passover

Visibility (miles)

3
2
3
4
9
4
7
9
5
9
9
9
9
9
9
9
7
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
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

73
95
29
80
61
65
58
84
84
83
76
62
58
49
53
58
58
49
34
34
39
32
31
35

Precipitation Amount (mm)

0.2
1.3
0
0.5
0.2
0.3
0
0.6
0.6
0.7
0.5
0.3
0.2
0
0
0.3
0.4
0.3
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
11
9
9
8
6
4
4
3
3
3
3
2
2
2
2
2
1
2
3
4
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
94
93
94
93
93
96
96
96
96
91
93
94
94
93
91
88
91
93
95
93
93
90
88

Pressure (mb)

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

Ozone (du)

431
428
429
432
433
434
437
437
435
434
432
430
430
432
433
432
429
428
430
430
432
433
431
427

Friday 26

Waning Gibbous 91%

00:32

07:23

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:15, Set: 20:57, Transit: 13:37. Moon - Rise: 00:32, Set: 07:23. Civil Dark: 21:35 - 05:36. Nautical Dark: 22:24 - 04:47. Astro Dark: 23:23 - 03:46

Total Clouds (% Sky Obscured)

99
99
96
89
92
93
94
83
89
91
100
100
100
100
100
97
95
95
92
90
100
100
100
100

Low Clouds (% Sky Obscured)

96
71
68
61
75
82
74
54
47
56
71
64
66
78
100
81
85
89
71
52
68
55
52
70

Medium Clouds (% Sky Obscured)

91
95
86
61
61
73
87
42
29
37
89
100
100
100
100
88
65
8
63
76
58
100
100
100

High Clouds (% Sky Obscured)

91
93
58
73
70
23
9
6
57
91
100
100
76
51
69
74
70
48
60
7
100
100
100
86

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
6
4
9
9
9
9
8
3
4

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

Precipitation Probability (%)

31
3
2
0
0
0
1
0
0
0
0
4
22
43
95
95
61
14
8
20
36
64
81
87

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7
1.2
0.3
0
0
0
0
0.4
0.6
0.5

Wind Speed/Direction (mph)

3
3
3
3
3
2
2
3
4
4
5
5
6
7
7
8
8
9
9
10
11
10
9
6

Chance of Frost

Temperature (°C)

10
10
10
9
8
8
8
7
7
7
6
7
7
7
7
8
8
10
12
13
14
15
14
14

Feels Like (°C)

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

Dew Point (°C)

7
8
7
8
7
6
6
6
6
6
6
6
6
7
7
7
8
9
10
10
10
11
12
13

Relative Humidity (%)

82
87
85
90
91
91
90
91
91
93
94
94
96
96
94
95
98
96
87
81
74
76
87
93

Pressure (mb)

1004
1004
1004
1004
1005
1005
1005
1005
1005
1005
1004
1004
1004
1004
1004
1004
1005
1005
1005
1005
1005
1004
1004
1004

Ozone (du)

426
428
434
436
440
442
445
445
440
437
437
438
437
436
437
438
440
443
446
446
442
437
430
425

Saturday 27

Waning Gibbous 83%

01:44

08:06

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:13, Set: 20:58, Transit: 13:36. Moon - Rise: 01:44, Set: 08:06. Civil Dark: 21:37 - 05:34. Nautical Dark: 22:26 - 04:44. Astro Dark: 23:27 - 03:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
82
96
87
98
100
89
100
100
100
92
100
100
78
54
99
53
63
59
84

Low Clouds (% Sky Obscured)

66
65
86
98
78
75
48
50
66
85
76
85
78
58
58
60
74
67
41
79
43
51
44
74

Medium Clouds (% Sky Obscured)

97
96
86
77
92
60
97
74
61
100
86
100
94
99
73
100
82
16
55
63
49
54
56
58

High Clouds (% Sky Obscured)

100
100
100
97
88
11
32
61
90
80
78
78
100
71
68
48
100
0
0
0
0
0
0
15

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
3
8
9
5
6
6
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

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

Precipitation Probability (%)

86
95
69
55
24
16
1
2
20
53
45
14
15
12
48
93
63
36
63
61
52
38
28
19

Precipitation Amount (mm)

0.4
0.6
0
0
0
0
0
0
0
0.3
0.2
0
0
0
0
1
0.3
0
0.4
0.3
0.2
0
0
0

Wind Speed/Direction (mph)

6
7
8
9
8
10
9
9
10
10
13
13
13
13
12
12
12
14
14
18
17
19
18
19

Chance of Frost

Temperature (°C)

13
13
13
12
12
12
11
11
11
11
11
11
11
12
12
12
12
12
13
14
13
15
14
14

Feels Like (°C)

12
11
11
10
10
9
9
8
8
8
7
7
8
8
8
9
9
9
10
11
9
11
11
9

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
92
95
96
95
91
91
90
87
87
86
84
84
90
96
95
92
80
82
76
70
67

Pressure (mb)

1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1004
1003
1003
1003
1003
1004
1005
1005
1006
1007
1007
1008
1008
1009

Ozone (du)

425
429
429
429
428
426
419
415
415
418
420
422
425
427
431
427
426
433
434
436
434
434
434
426

Sunday 28

Waning Gibbous 74%

02:44

09:07

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

Sun - Rise: 06:11, Set: 21:00, Transit: 13:36. Moon - Rise: 02:44, Set: 09:07. Civil Dark: 21:39 - 05:32. Nautical Dark: 22:28 - 04:42. Astro Dark: 23:30 - 03:39

Total Clouds (% Sky Obscured)

96
94
93
76
58
40
60
80
100
100
100
100
100
100
100
100
100
99
100
100
68
100
99
99

Low Clouds (% Sky Obscured)

73
58
57
37
18
3
1
0
2
8
15
12
29
41
53
48
45
44
40
36
35
39
41
40

Medium Clouds (% Sky Obscured)

47
40
30
57
27
40
35
35
30
25
34
40
51
62
68
69
48
69
78
71
63
80
99
98

High Clouds (% Sky Obscured)

55
50
50
50
45
50
67
73
56
57
100
50
68
60
98
63
100
56
74
100
48
90
60
70

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
6

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 (%)

23
24
19
13
9
1
1
0
1
2
3
3
5
1
0
1
1
0
2
4
4
10
34
41

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)

18
16
14
12
10
10
10
10
9
8
6
5
6
6
6
7
7
7
7
8
8
8
7
7

Chance of Frost

Temperature (°C)

13
12
11
10
10
9
8
7
7
7
7
6
6
7
7
8
9
11
13
14
15
16
16
16

Feels Like (°C)

9
8
7
7
6
5
3
2
2
2
3
4
3
4
5
5
7
9
11
12
12
15
14
15

Dew Point (°C)

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

Relative Humidity (%)

66
71
73
76
77
77
75
75
77
81
85
87
86
87
85
84
78
72
67
63
60
58
60
61

Pressure (mb)

1010
1011
1012
1013
1014
1015
1016
1016
1017
1017
1017
1018
1018
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

422
419
419
418
422
419
416
415
412
411
411
411
412
412
411
409
409
409
414
415
414
411
412
413

Monday 29

Waning Gibbous 64%

03:27

10:24

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:09, Set: 21:02, Transit: 13:36. Moon - Rise: 03:27, Set: 10:24. Civil Dark: 21:41 - 05:30. Nautical Dark: 22:31 - 04:39. Astro Dark: 23:34 - 03:35

Total Clouds (% Sky Obscured)

90
78
66
79
90
100
94
87
82
88
90
94
95
96
98
93
95
99
93
88
82
72
62
54

Low Clouds (% Sky Obscured)

16
21
7
15
2
1
0
1
7
15
20
19
25
35
42
55
45
29
20
16
10
8
7
7

Medium Clouds (% Sky Obscured)

84
69
50
50
45
45
46
41
41
59
58
85
62
89
87
84
90
93
80
67
54
43
33
23

High Clouds (% Sky Obscured)

70
73
59
69
91
100
93
84
77
74
52
67
71
83
88
89
90
91
70
52
36
31
25
13

ISS Passover

Visibility (miles)

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

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

Very Light Rain
Very Light Rain
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

Precipitation Probability (%)

47
50
41
11
6
0
0
0
0
1
0
1
10
20
48
47
54
61
51
36
2
20
29
36

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
14
14
13
11
10
9
8
8
8
8
8
8
8
9
10
11
12
13
13
12
11
21
20

Dew Point (°C)

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

Relative Humidity (%)

71
75
85
89
90
93
95
95
95
95
95
95
95
96
95
95
93
93
92
85
79
73
72
73

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1017
1017
1017
1016
1015

Ozone (du)

413
413
413
411
411
410
407
405
401
399
395
394
393
391
390
388
387
386
386
386
386
386
384
383

Tuesday 30

Waning Gibbous 53%

03:57

11:51

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
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:07, Set: 21:04, Transit: 13:36. Moon - Rise: 03:57, Set: 11:51. Civil Dark: 21:42 - 05:28. Nautical Dark: 22:33 - 04:37. Astro Dark: 23:37 - 03:31

Total Clouds (% Sky Obscured)

53
53
56
68
81
94
95
96
97
98
99
100
91
84
82
86
89
94
96
98
99
96
92
89

Low Clouds (% Sky Obscured)

5
2
0
0
0
2
10
22
39
39
43
46
55
64
74
81
82
82
82
81
78
77
75
75

Medium Clouds (% Sky Obscured)

25
26
28
48
68
87
84
81
81
79
73
71
75
77
75
69
63
57
38
23
8
6
5
4

High Clouds (% Sky Obscured)

26
41
56
66
77
88
87
88
86
89
93
98
82
76
75
88
90
93
93
95
98
92
86
85

ISS Passover

Visibility (miles)

4
5
6
8
5
3
1
2
2
2
2
2
3
2
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
0
0
0
0
0
0
0

Precipitation Type

None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
Moderate Rain
Moderate Rain
Light Rain
Light Rain
None
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

46
50
49
82
95
95
95
95
95
95
95
83
89
85
85
66
46
25
22
18
11
15
17
16

Precipitation Amount (mm)

0
0
0
0.4
0.7
1.2
2.2
3.1
3.8
0.9
0.5
0
0.5
0.6
0.8
0.4
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
5
4
5
4
5
7
7
9
11
9
7
6
5
5
5
5
5
6
6
6
7
7
7

Chance of Frost

Temperature (°C)

21
20
20
19
18
17
16
15
15
15
15
14
14
14
14
14
16
17
18
19
20
21
21
21

Feels Like (°C)

20
20
21
21
18
18
18
17
17
16
14
14
13
13
13
13
15
15
16
17
17
18
22
22

Dew Point (°C)

16
16
16
16
16
16
15
15
15
15
15
14
14
14
14
14
15
16
16
16
16
17
17
17

Relative Humidity (%)

71
75
81
85
89
93
96
98
98
98
98
98
100
98
98
98
96
93
90
85
80
76
77
79

Pressure (mb)

1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1014
1014
1014
1014
1013
1013
1013
1013
1013
1012

Ozone (du)

381
381
381
381
379
378
376
375
375
375
375
376
377
378
378
378
378
378
378
376
374
372
372
372

Wednesday 1

Third Quarter 41%

04:18

13:20

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

Sun - Rise: 06:05, Set: 21:05, Transit: 13:36. Moon - Rise: 04:18, Set: 13:20. Civil Dark: 21:44 - 05:26. Nautical Dark: 22:36 - 04:34. Astro Dark: 23:41 - 03:27

Total Clouds (% Sky Obscured)

80
70
60
43
27
9
33
56
79
75
80
76
65
52
42
33
24
16
29
35
42

Low Clouds (% Sky Obscured)

64
56
47
32
16
1
2
3
4
4
3
2
1
1
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

71
55
35
25
16
6
31
57
82
82
83
83
71
58
46
38
28
20
34
45
59

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

Fog (%)

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

Precipitation Probability (%)

14
11
3
7
6
2
2
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

21
21
21
21
17
17
16
16
15
14
11
11
11
10
10
10
14
14
15
15
17

Dew Point (°C)

18
17
16
16
15
14
13
12
12
12
11
11
11
11
11
11
12
13
14
14
14

Relative Humidity (%)

81
82
84
86
89
92
93
93
93
95
95
95
96
93
92
90
84
78
73
69
64

Pressure (mb)

1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1013
1013

Ozone (du)

371
372
373
373
372
371
370
370
370
370
369
368
368
366
365
363
362
362
361
361
361

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

Generated: 25/04/24 17:42:19. Forecast: 25/04/24 to 01/05/24. Timezone: UTC+2.00