Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 13

Waning Crescent 17%

04:05

17:11

00 Bad
01 OK
02 OK
03 Good
04 OK
05 OK
06 Good
07 Good
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

Sun - Rise: 05:47, Set: 21:24, Transit: 13:35. Moon - Rise: 04:05, Set: 17:11. Civil Dark: 22:06 - 05:05. Nautical Dark: 23:03 - 04:07. Astro Dark: 00:26 - 02:39

Total Clouds (% Sky Obscured)

87
44
29
13
21
24
0
0
58
35
100
100
100
100
100
100
92
83
100
100
86
94
97
100

Low Clouds (% Sky Obscured)

48
51
27
48
52
34
43
33
0
57
60
100
70
82
95
75
96
86
72
65
56
62
47
52

Medium Clouds (% Sky Obscured)

28
0
0
0
44
0
32
61
40
100
98
100
80
78
31
25
28
54
39
27
86
94
87
100

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
11
0
0
0
0
0
0
0
0
0
0
0
1
0
90
10
7

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
8
7
9
9

Fog (%)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
100
100
100
100
100
100
100
100
100
100
100
93
95
95
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0.3
1.2
0.7
2
0.9
0.4
0.4
0.6
0.7
0.5
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
95
96
97
93
98
97
89
84
74
68
89
85
90
77
73
67
64
72
75
87
91
93
93

Pressure (mb)

1007
1006
1006
1005
1005
1004
1004
1004
1003
1003
1003
1002
1002
1001
1000
1000
999
999
999
998
997
997
998
997

Ozone (du)

417
416
417
421
422
421
420
422
423
423
422
422
422
423
426
430
432
434
436
438
440
441
439
439

Thursday 14

Waning Crescent 9%

04:17

18:39

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
18 Bad
19 Bad
20 Bad
21 OK
22 Good
23 Good

Sun - Rise: 05:45, Set: 21:26, Transit: 13:35. Moon - Rise: 04:17, Set: 18:39. Civil Dark: 22:08 - 05:03. Nautical Dark: 23:06 - 04:05. Astro Dark: 00:32 - 02:33

Total Clouds (% Sky Obscured)

99
94
89
91
96
99
93
91
100
100
100
100
94
90
98
100
75
75
64
61
51
23
1
0

Low Clouds (% Sky Obscured)

71
89
82
83
89
93
85
84
64
92
93
61
51
46
41
58
59
61
58
56
50
23
0
0

Medium Clouds (% Sky Obscured)

96
57
58
67
74
49
64
63
100
100
96
85
88
88
97
100
53
22
2
10
16
1
1
0

High Clouds (% Sky Obscured)

5
5
3
2
0
2
7
2
1
48
88
13
10
10
10
10
4
1
0
1
0
0
0
0

ISS Passover

Visibility (miles)

9
8
8
9
9
9
4
7
9
7
7
9
9
9
9
9
8
6
6
9
8
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
Light Rain
Light Rain
Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None

Precipitation Probability (%)

49
41
37
28
28
39
49
45
87
87
87
57
40
39
37
59
56
34
20
14
3
0
1
1

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.5
0.6
0.7
0
0
0
0
0.3
0.3
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
5
4
4
5
6
5
4
5
8
11
9
9
7
5
7
8
9
9
8
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
94
94
94
94
94
94
94
91
84
85
93
91
74
58
49
51
53
61
63
68
74
78
82

Pressure (mb)

997
997
996
996
996
996
996
996
996
997
997
998
998
998
998
998
998
998
999
999
999
1000
1001
1001

Ozone (du)

441
441
442
441
439
438
437
438
439
438
437
436
437
439
441
442
442
442
441
438
436
436
437
437

Friday 15

Waning Crescent 3%

04:32

20:12

00 Good
01 Good
02 Good
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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:44, Set: 21:27, Transit: 13:35. Moon - Rise: 04:32, Set: 20:12. Civil Dark: 22:10 - 05:01. Nautical Dark: 23:08 - 04:03. Astro Dark: 00:38 - 02:27

Total Clouds (% Sky Obscured)

8
0
10
63
90
94
95
91
100
100
100
95
98
91
98
93
91
100
100
95
94
97
95
99

Low Clouds (% Sky Obscured)

8
0
4
13
7
18
30
25
38
55
56
45
67
66
64
78
74
67
58
55
52
32
46
42

Medium Clouds (% Sky Obscured)

0
0
2
17
40
44
62
50
100
100
100
91
97
87
85
64
71
88
86
69
67
85
81
67

High Clouds (% Sky Obscured)

0
0
3
55
90
71
53
69
100
96
9
4
3
1
32
50
15
90
82
35
32
48
10
93

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
7
8
6
8
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
2
3
3
6
7
7
6
22
45
49
49
51
46
51
45
45
35
27
28
7
4
15
4

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
3
3
3
3
3
3
4
4
6
9
9
10
11
12
13
13
13
13
11
9
8
6
5

Chance of Frost

Temperature (°C)

5
5
4
4
4
4
4
5
7
9
10
10
11
11
11
11
11
11
10
10
9
9
8
7

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
85
86
88
88
88
88
85
81
74
66
67
62
57
57
59
59
67
69
74
77
75
75
81

Pressure (mb)

1001
1001
1002
1002
1002
1002
1002
1002
1003
1003
1003
1004
1004
1004
1004
1005
1005
1005
1005
1006
1006
1007
1007
1007

Ozone (du)

437
437
436
432
430
429
427
426
424
423
424
424
422
422
421
419
419
417
416
415
415
415
414
415

Saturday 16

New Moon 0%

04:53

21:48

00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 OK
07 OK
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

Sun - Rise: 05:42, Set: 21:29, Transit: 13:35. Moon - Rise: 04:53, Set: 21:48. Civil Dark: 22:11 - 05:00. Nautical Dark: 23:11 - 04:00. Astro Dark: 00:44 - 02:20

Total Clouds (% Sky Obscured)

100
100
100
99
95
36
15
20
32
51
91
86
96
93
62
72
55
58
71
87
90
92
94
89

Low Clouds (% Sky Obscured)

55
52
49
54
40
29
4
1
1
23
49
58
48
45
42
46
49
33
16
0
30
50
72
73

Medium Clouds (% Sky Obscured)

79
81
89
89
83
19
15
20
32
51
79
65
59
44
30
16
1
14
29
38
81
81
63
56

High Clouds (% Sky Obscured)

100
97
95
58
67
1
1
1
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

9
20
22
31
28
16
5
17
27
24
48
44
47
40
35
36
34
27
21
23
21
8
7
13

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
5
5
5
5
5
4
5
7
8
10
10
10
10
10
10
9
7
5
7
6
5
5

Chance of Frost

Temperature (°C)

6
6
6
6
6
6
5
6
8
10
11
11
12
12
13
13
14
14
14
13
12
11
10
9

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

88
90
91
91
93
93
93
91
87
77
66
60
55
54
49
44
43
42
43
46
63
71
71
73

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011

Ozone (du)

415
415
414
413
411
411
410
410
410
409
409
413
413
415
416
415
414
412
410
408
405
403
401
400

Sunday 17

Waxing Crescent 1%

05:22

23:19

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:41, Set: 21:30, Transit: 13:35. Moon - Rise: 05:22, Set: 23:19. Civil Dark: 22:13 - 04:58. Nautical Dark: 23:13 - 03:58. Astro Dark: 00:51 - 02:11

Total Clouds (% Sky Obscured)

77
74
73
91
92
85
92
94
97
99
99
88
74
71
82
92
98
99
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

67
69
67
70
73
79
84
90
92
95
97
80
62
44
49
56
63
53
38
31
54
59
56
49

Medium Clouds (% Sky Obscured)

33
32
38
91
91
51
54
64
83
87
82
66
42
48
58
76
96
97
80
73
99
100
100
93

High Clouds (% Sky Obscured)

0
0
3
9
13
15
22
28
19
9
0
0
0
0
0
0
0
12
18
24
49
74
99
68

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
3
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
Light Rain
Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

16
19
18
18
17
22
26
28
26
21
15
15
17
21
31
41
44
43
54
95
95
74
56
54

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.8
1.2
0.3
0
0

Wind Speed/Direction (mph)

6
6
6
6
6
7
8
8
9
10
10
11
11
11
11
14
11
9
9
9
8
6
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
6
5
5
6
7
6
7
8
9
11
12
13
10
10
11
12
12
11
11
10
9

Dew Point (°C)

5
6
6
6
6
6
6
6
6
6
6
6
5
5
5
8
9
9
8
9
11
11
10
9

Relative Humidity (%)

78
85
90
91
91
91
91
88
84
76
71
64
57
51
48
62
70
74
67
69
89
96
95
93

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011

Ozone (du)

401
400
399
398
396
395
394
393
391
392
396
397
396
396
400
402
399
398
397
396
396
398
403
403

Monday 18

Waxing Crescent 5%

06:07

No Set

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:39, Set: 21:32, Transit: 13:35. Moon - Rise: 06:07, Set: No Set. Civil Dark: 22:15 - 04:56. Nautical Dark: 23:16 - 03:55. Astro Dark: 01:00 - 02:00

Total Clouds (% Sky Obscured)

100
100
99
98
98
82
69
57
90
88
86
89
93
96
81
68
56
53
44
30
34
42
51
51

Low Clouds (% Sky Obscured)

41
34
33
33
29
33
29
29
70
72
68
67
65
64
56
54
50
53
44
30
34
20
17
24

Medium Clouds (% Sky Obscured)

100
100
99
98
97
82
69
57
90
88
86
89
93
95
76
60
43
31
17
2
31
42
51
51

High Clouds (% Sky Obscured)

37
6
4
2
5
0
0
0
5
15
20
20
20
20
24
30
32
24
12
1
4
9
11
14

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

60
68
59
29
12
20
23
25
34
37
32
49
47
52
48
45
44
37
33
29
35
39
42
34

Precipitation Amount (mm)

0.3
0.5
0.2
0
0
0
0
0
0
0
0
0
0
0.2
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
7
7
7
6
7
8
7
8
8
9
9
9
12
12
12
12
12
12
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
96
98
98
96
95
85
79
71
69
65
61
63
64
64
68
73
78
81
88
93

Pressure (mb)

1011
1011
1011
1011
1011
1011
1011
1012
1012
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1017

Ozone (du)

403
404
405
407
409
412
415
417
417
417
417
418
420
422
424
422
420
417
411
404
398
395
393
390

Tuesday 19

Waxing Crescent 11%

07:12

00:34

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad

Sun - Rise: 05:38, Set: 21:33, Transit: 13:36. Moon - Rise: 07:12, Set: 00:34. Civil Dark: 22:17 - 04:55. Nautical Dark: 23:18 - 03:53. Astro Dark: 01:11 - N/A

Total Clouds (% Sky Obscured)

57
63
77
86
86
84
82
79
85
92
100
100
100
100
100
100
100
100
100
100
97
95
94
92

Low Clouds (% Sky Obscured)

33
39
31
21
9
29
50
72
76
85
85
85
85
90
85
80
65
55
40
35
17
11
3
24

Medium Clouds (% Sky Obscured)

49
32
48
64
77
63
50
37
53
67
80
79
79
79
83
83
83
67
54
37
41
37
50
51

High Clouds (% Sky Obscured)

20
25
33
31
38
30
19
7
38
69
100
99
100
100
97
94
90
90
92
88
57
33
12
10

ISS Passover

Visibility (miles)

8
8
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
13
11
6
1
2
2
1
5
3
0
2
3
3
16
22
27
24
20
15
20
26
25
22

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
5
5
5
6
6
6
7
7
8
9
9
10
10
11
10
9
9
7
6
6
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
96
96
98
96
95
95
93
92
90
84
82
78
83
89
95
93
92
90
92
95
96

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018

Ozone (du)

388
387
385
385
385
384
383
381
380
379
379
378
379
380
381
382
382
383
382
382
382
382
383
384

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

Generated: 13/05/26 20:41:40. Forecast: 13/05/26 to 19/05/26. Timezone: UTC+2.00