Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 12

Waning Crescent 21%

05:24

15:32

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
17 Bad

Sun - Rise: 06:45, Set: 20:32, Transit: 13:39. Moon - Rise: 05:24, Set: 15:32. Civil Dark: 21:08 - 06:09. Nautical Dark: 21:52 - 05:25. Astro Dark: 22:41 - 04:35

Total Clouds (% Sky Obscured)

93
95
96
97
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
98
100
100
100
100

Low Clouds (% Sky Obscured)

14
11
9
9
20
18
0
7
23
32
42
38
29
12
0
0
0
0
0
0
18
60
63
59

Medium Clouds (% Sky Obscured)

21
53
65
57
82
72
91
83
93
100
100
100
100
100
100
100
100
100
100
98
95
95
95
98

High Clouds (% Sky Obscured)

93
95
96
97
100
100
100
80
78
100
100
100
100
100
100
100
100
100
85
81
100
95
97
95

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
7
7
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 (%)

3
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
12
15
17
20

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)

11
9
6
4
1
1
1
1
2
2
3
3
3
4
4
4
5
5
5
5
4
4
4
5

Chance of Frost

Temperature (°C)

14
13
12
10
10
9
8
8
7
7
7
7
7
7
7
8
10
11
12
13
14
14
14
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
60
64
67
70
74
75
77
78
78
79
78
75
72
70
69
65
58
55
50
49
50
55
68

Pressure (mb)

1014
1014
1014
1014
1014
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013

Ozone (du)

383
383
382
383
384
384
386
387
388
390
393
394
394
393
395
396
397
396
396
395
394
394
395
398

Monday 13

Waning Crescent 12%

05:37

16:53

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

Sun - Rise: 06:43, Set: 20:34, Transit: 13:39. Moon - Rise: 05:37, Set: 16:53. Civil Dark: 21:09 - 06:07. Nautical Dark: 21:54 - 05:22. Astro Dark: 22:44 - 04:32

Total Clouds (% Sky Obscured)

96
96
96
94
95
99
90
33
45
35
52
34
39
32
32
33
22
48
69
57
66
51
62
45

Low Clouds (% Sky Obscured)

25
0
5
5
13
6
1
1
14
35
34
25
4
30
32
33
22
48
50
30
32
0
0
7

Medium Clouds (% Sky Obscured)

91
96
96
94
95
99
78
21
45
4
13
8
19
4
2
0
0
0
29
20
35
38
50
29

High Clouds (% Sky Obscured)

45
15
10
75
68
54
56
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

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
1
8
12
10
7
3
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 (%)

17
17
6
1
0
0
0
0
0
2
0
1
0
0
0
0
0
9
13
16
3
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
4
3
4
3
3
3
3
4
4
5
5
4
4
3
4
5
6
7
7
8
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
10
9
7
7
6
6
6
4
3
3
4
4
6
8
9
10
12
12
11
11
12
13

Dew Point (°C)

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

Relative Humidity (%)

79
83
83
82
84
84
85
85
88
90
93
91
91
91
91
84
78
67
59
53
50
48
47
45

Pressure (mb)

1013
1013
1014
1014
1015
1015
1015
1015
1016
1016
1017
1017
1018
1018
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

407
416
423
429
436
442
448
454
457
463
466
466
461
451
438
430
428
426
422
418
415
412
406
401

Tuesday 14

Waning Crescent 6%

05:48

No Set

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

Sun - Rise: 06:41, Set: 20:35, Transit: 13:39. Moon - Rise: 05:48, Set: No Set. Civil Dark: 21:11 - 06:05. Nautical Dark: 21:56 - 05:20. Astro Dark: 22:46 - 04:29

Total Clouds (% Sky Obscured)

40
32
42
70
79
6
0
2
0
0
25
15
15
20
20
27
27
23
23
25
32
35
37
54

Low Clouds (% Sky Obscured)

13
0
0
0
0
0
0
2
0
0
5
5
5
10
15
15
15
15
14
9
7
6
8
15

Medium Clouds (% Sky Obscured)

23
0
0
0
0
0
0
0
0
0
0
0
5
4
0
0
0
0
0
0
1
6
37
45

High Clouds (% Sky Obscured)

1
31
40
70
75
6
0
2
0
0
20
1
5
7
8
4
5
4
9
25
21
31
32
37

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
9
16
14
3
1
0
0
0
0
0
3
7
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
6
5
4
3
3
3
4
4
5
4
5
5
5
5
6
6
7
8
9
8
7
8
7

Chance of Frost

Temperature (°C)

15
14
12
10
9
8
8
8
7
7
7
7
6
6
7
9
11
13
15
16
17
18
18
17

Feels Like (°C)

13
13
12
10
9
9
8
7
5
4
4
4
4
3
4
6
8
10
12
14
14
16
15
15

Dew Point (°C)

4
5
5
4
3
2
2
2
1
0
-0
-1
0
2
3
5
7
9
11
10
10
11
13
14

Relative Humidity (%)

46
54
62
65
65
65
66
66
64
62
60
59
64
74
79
80
78
76
76
66
62
62
72
79

Pressure (mb)

1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1023
1022
1022
1022
1023
1023
1022
1022
1021
1021
1020
1020
1020

Ozone (du)

398
395
394
392
388
386
384
384
383
380
379
377
376
374
373
371
370
368
365
363
362
359
357
357

Wednesday 15

Waning Crescent 2%

06:00

18:16

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 OK
17 OK

Sun - Rise: 06:39, Set: 20:37, Transit: 13:39. Moon - Rise: 06:00, Set: 18:16. Civil Dark: 21:13 - 06:02. Nautical Dark: 21:58 - 05:17. Astro Dark: 22:49 - 04:26

Total Clouds (% Sky Obscured)

64
81
88
94
100
100
100
83
81
79
81
86
92
91
89
87
81
82
82
85
64
48
32
42

Low Clouds (% Sky Obscured)

22
29
41
47
55
45
30
4
21
42
65
56
47
39
52
65
78
73
68
64
54
41
30
19

Medium Clouds (% Sky Obscured)

45
55
69
84
98
99
99
40
44
42
43
48
51
58
49
40
32
31
27
22
17
11
5
3

High Clouds (% Sky Obscured)

18
38
88
94
100
40
30
19
16
10
0
0
0
0
16
32
48
64
79
85
63
30
0
32

ISS Passover

Visibility (miles)

9
7
9
9
8
5
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

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

Precipitation Probability (%)

54
50
55
56
68
68
35
21
15
14
11
10
8
2
18
23
27
22
20
14
11
7
1
1

Precipitation Amount (mm)

0.2
0
0
0.2
0.4
0.4
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
7
7
8
7
7
7
7
7
7
7
6
6
7
8
10
10
11
11
11
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
93
95
93
96
96
98
98
98
96
98
98
96
98
100
93
84
68
57
51
51
54
57
57

Pressure (mb)

1020
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020

Ozone (du)

355
354
353
354
358
358
359
364
373
374
370
368
368
368
369
371
372
375
379
380
382
382
382
382

Thursday 16

Waning Crescent 0%

06:13

19:43

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
17 Bad

Sun - Rise: 06:36, Set: 20:39, Transit: 13:38. Moon - Rise: 06:13, Set: 19:43. Civil Dark: 21:15 - 06:00. Nautical Dark: 22:00 - 05:15. Astro Dark: 22:52 - 04:22

Total Clouds (% Sky Obscured)

59
68
100
100
100
100
99
99
94
89
85
90
95
100
95
90
84
77
71
64
72
80
88
93

Low Clouds (% Sky Obscured)

10
0
0
0
0
0
0
0
0
0
0
0
0
0
5
11
16
16
15
12
16
22
28
21

Medium Clouds (% Sky Obscured)

2
0
0
0
29
37
54
63
70
79
85
89
90
48
45
58
70
71
70
64
59
52
43
62

High Clouds (% Sky Obscured)

59
68
100
100
100
99
98
96
68
39
15
40
70
100
68
43
20
20
20
20
36
54
69
88

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
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)

10
8
6
5
4
4
3
3
3
3
4
5
5
5
5
5
5
6
6
7
7
7
7
7

Chance of Frost

Temperature (°C)

15
14
13
11
10
9
9
9
9
8
8
8
8
8
9
10
12
14
15
16
16
17
17
17

Feels Like (°C)

14
13
13
9
8
8
8
8
7
7
7
6
5
6
7
7
9
9
10
10
11
16
15
15

Dew Point (°C)

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

Relative Humidity (%)

62
68
77
83
84
82
85
85
84
84
85
87
88
88
82
77
71
67
62
59
56
55
53
52

Pressure (mb)

1020
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1021
1021
1021

Ozone (du)

384
382
378
376
374
374
374
374
372
369
368
367
366
366
364
364
364
364
362
360
359
358
357
356

Friday 17

New Moon 2%

06:30

21:14

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
17 Bad

Sun - Rise: 06:34, Set: 20:41, Transit: 13:38. Moon - Rise: 06:30, Set: 21:14. Civil Dark: 21:17 - 05:58. Nautical Dark: 22:02 - 05:12. Astro Dark: 22:55 - 04:19

Total Clouds (% Sky Obscured)

97
100
98
95
93
92
93
93
97
99
100
99
98
97
97
99
100
99
97
95
96
96
97
95

Low Clouds (% Sky Obscured)

14
7
12
12
18
27
38
47
37
26
12
11
9
7
9
9
12
11
11
7
9
10
12
28

Medium Clouds (% Sky Obscured)

80
99
98
95
93
75
54
35
38
42
46
52
59
65
76
85
92
92
91
91
92
93
93
80

High Clouds (% Sky Obscured)

93
100
86
73
58
63
69
76
85
92
100
74
47
21
47
74
100
78
57
35
58
78
97
93

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
5
3
0
0
0
0
0
0
0
0
0
0
4
8
6
14
15
16
28
31
30
24

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

Chance of Frost

Temperature (°C)

16
15
14
14
13
12
12
11
11
10
10
9
10
10
10
12
13
15
16
17
18
18
18
18

Feels Like (°C)

16
16
16
12
12
12
12
11
12
8
9
9
8
8
8
9
10
10
10
11
12
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

58
62
69
69
68
67
70
72
75
76
77
77
78
78
78
73
70
66
61
59
55
53
52
50

Pressure (mb)

1021
1021
1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1017
1017
1016

Ozone (du)

356
355
355
355
355
356
358
359
361
363
365
368
368
369
369
372
374
377
381
385
389
391
393
394

Saturday 18

Waxing Crescent 6%

06:54

22:49

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

Sun - Rise: 06:32, Set: 20:42, Transit: 13:38. Moon - Rise: 06:54, Set: 22:49. Civil Dark: 21:19 - 05:55. Nautical Dark: 22:05 - 05:09. Astro Dark: 22:57 - 04:16

Total Clouds (% Sky Obscured)

95
94
96
98
100
100
100
100
100
100
100
97
95
92
86
80
74
75
78
81

Low Clouds (% Sky Obscured)

41
51
50
51
48
55
63
71
67
64
60
61
61
65
66
66
67
63
60
53

Medium Clouds (% Sky Obscured)

67
50
50
40
50
55
61
66
66
67
67
63
53
43
31
20
9
18
26
38

High Clouds (% Sky Obscured)

93
85
59
43
33
57
81
99
100
100
100
86
73
59
38
14
3
4
3
4

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

15
13
24
27
26
34
39
37
50
51
47
30
28
26
30
38
49
48
42
35

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
19
19
15
14
13
13
13
12
10
9
10
9
9
9
11
11
12
13
13

Dew Point (°C)

9
9
10
10
9
8
8
8
8
8
8
8
8
9
9
9
9
8
8
8

Relative Humidity (%)

56
62
69
70
71
71
74
73
76
79
84
87
85
87
85
76
69
60
58
54

Pressure (mb)

1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017

Ozone (du)

390
386
382
382
381
380
379
378
378
376
375
374
373
372
371
370
368
367
366
365

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

Generated: 12/04/26 18:34:48. Forecast: 12/04/26 to 18/04/26. Timezone: UTC+2.00