Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 15

Waning Crescent 0%

04:53

20:12

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 OK
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad

Sun - Rise: 05:42, Set: 21:27, Transit: 13:35. Moon - Rise: 04:53, Set: 20:12. Civil Dark: 22:10 - 05:00. Nautical Dark: 23:08 - 04:00. Astro Dark: 00:44 - 02:20

Total Clouds (% Sky Obscured)

100
100
99
88
86
90
64
60
98
85
93
39
33
37
51
54
98
91
100
100
86
91
87
83

Low Clouds (% Sky Obscured)

59
56
44
15
19
42
52
47
57
57
52
39
26
21
26
32
77
40
48
55
44
62
45
56

Medium Clouds (% Sky Obscured)

100
97
91
84
57
34
17
20
25
34
25
0
4
14
19
13
30
28
49
59
50
60
77
63

High Clouds (% Sky Obscured)

100
10
58
35
61
76
1
1
87
52
75
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

73
24
13
4
5
1
2
3
2
2
3
2
5
7
27
30
45
46
39
46
33
37
32
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
13
11
8
6
5
6
6
6
6
6
6
6
5
6
8
8
9
10
11
11
10
11
11

Chance of Frost

Temperature (°C)

10
9
9
8
6
5
5
5
5
5
5
5
4
5
7
9
10
11
11
12
12
12
13
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
87
85
90
93
91
91
91
89
89
88
88
89
88
84
77
74
66
55
52
56
57
59
66

Pressure (mb)

1005
1005
1005
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

417
416
416
415
415
416
416
415
415
415
416
417
423
432
432
429
427
420
414
409
407
408
409
407

Saturday 16

New Moon 1%

05:22

21:48

18 Bad
19 Bad
20 OK
21 Good
22 Good
23 OK
00 OK
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: 05:41, Set: 21:29, Transit: 13:35. Moon - Rise: 05:22, Set: 21:48. Civil Dark: 22:11 - 04:58. Nautical Dark: 23:11 - 03:58. Astro Dark: 00:51 - 02:11

Total Clouds (% Sky Obscured)

46
48
31
2
4
22
27
62
100
100
100
100
100
100
100
100
100
99
100
100
93
82
87
100

Low Clouds (% Sky Obscured)

38
48
31
0
1
1
9
12
45
40
14
86
77
68
82
95
100
91
100
93
75
64
82
62

Medium Clouds (% Sky Obscured)

20
1
2
2
2
14
7
21
38
36
51
67
97
99
98
99
100
98
97
99
87
40
48
96

High Clouds (% Sky Obscured)

0
0
0
0
0
2
2
23
100
100
100
100
97
95
99
99
98
48
5
10
10
10
30
100

ISS Passover

Visibility (miles)

8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
7
5
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
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

8
2
0
0
0
0
0
1
1
3
5
9
22
31
38
42
46
45
41
36
50
79
86
95

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.6
0.5
1.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
11
9
7
6
6
5
6
6
6
6
6
8
8
9
10
10
11
12
12
14
15
14

Feels Like (°C)

10
9
10
8
6
5
4
3
3
4
3
2
3
4
5
6
7
8
8
9
9
10
12
10

Dew Point (°C)

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

Relative Humidity (%)

63
57
62
70
74
75
79
85
85
82
81
86
87
84
87
91
91
93
91
90
84
76
71
83

Pressure (mb)

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

Ozone (du)

403
400
395
394
396
397
397
396
394
394
394
393
390
390
393
394
394
395
395
394
393
394
398
401

Sunday 17

Waxing Crescent 5%

06:07

23:19

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: 05:39, Set: 21:30, Transit: 13:35. Moon - Rise: 06:07, Set: 23:19. Civil Dark: 22:13 - 04:56. Nautical Dark: 23:13 - 03:55. Astro Dark: 01:00 - 02:00

Total Clouds (% Sky Obscured)

100
100
100
99
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
94
82
75
65
70

Low Clouds (% Sky Obscured)

77
65
37
35
52
78
77
79
74
97
93
91
87
81
82
66
66
58
57
57
50
51
51
52

Medium Clouds (% Sky Obscured)

99
100
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
90
70
18
20
24

High Clouds (% Sky Obscured)

100
78
62
39
14
5
5
97
100
100
100
100
98
52
84
98
35
25
14
0
0
0
0
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

66
67
60
49
47
63
61
73
90
90
87
75
83
80
66
52
73
70
58
57
60
55
55
47

Precipitation Amount (mm)

0
0.4
0.4
0
0
0.3
0.3
0.4
0.9
0.7
0.5
0.3
0.6
0.6
0.4
0
0.5
0.4
0.3
0.2
0.3
0
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
76
81
87
90
91
93
93
91
93
93
91
91
91
88
85
79
77
66
63
75
63
69
83

Pressure (mb)

1011
1011
1011
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014

Ozone (du)

404
406
407
408
409
410
410
411
411
410
411
412
412
412
412
412
413
414
415
418
417
412
409
409

Monday 18

Waxing Crescent 11%

07:12

00:34

18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 OK
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: 05:38, Set: 21:32, Transit: 13:36. Moon - Rise: 07:12, Set: 00:34. Civil Dark: 22:15 - 04:55. Nautical Dark: 23:16 - 03:53. Astro Dark: 01:11 - N/A

Total Clouds (% Sky Obscured)

58
77
35
33
22
40
41
53
62
70
88
90
93
96
97
97
98
99
99
100
99
98
97
98

Low Clouds (% Sky Obscured)

53
55
35
26
14
15
6
0
0
0
0
0
0
0
1
3
4
21
38
55
63
73
82
89

Medium Clouds (% Sky Obscured)

25
77
23
21
6
15
20
27
33
36
44
67
93
96
97
97
97
97
94
59
64
94
92
92

High Clouds (% Sky Obscured)

0
0
0
0
1
5
5
10
10
10
13
11
14
17
15
12
10
40
70
100
70
42
16
36

ISS Passover

Visibility (miles)

9
9
8
8
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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

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

Precipitation Probability (%)

40
44
36
18
3
0
0
0
0
0
0
0
1
1
7
13
18
29
24
26
37
65
64
57

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

7
6
6
5
5
5
5
6
6
6
6
6
7
7
9
10
11
10
11
12
13
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
14
12
12
10
9
8
7
7
7
6
5
5
6
7
8
9
9
9
10
10
10
9
10

Dew Point (°C)

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

Relative Humidity (%)

89
82
87
92
93
96
95
95
95
96
96
96
96
96
93
91
87
92
92
89
87
82
90
93

Pressure (mb)

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

Ozone (du)

411
411
402
391
387
384
381
378
376
373
370
368
369
369
368
367
368
375
382
381
380
379
379
378

Tuesday 19

Waxing Crescent 21%

08:34

01:28

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: 05:37, Set: 21:33, Transit: 13:36. Moon - Rise: 08:34, Set: 01:28. Civil Dark: 22:17 - 04:53. Nautical Dark: 23:18 - 03:51. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

99
100
100
100
100
98
98
97
97
97
97
98
99
100
94
88
81
82
82
82
72
63
55
66

Low Clouds (% Sky Obscured)

95
100
92
92
87
83
80
77
76
78
82
81
80
77
80
73
68
66
65
68
64
56
47
40

Medium Clouds (% Sky Obscured)

57
83
95
97
100
81
80
77
70
70
61
59
54
50
22
22
23
29
37
44
40
37
33
32

High Clouds (% Sky Obscured)

55
74
51
28
5
24
44
64
57
51
42
43
42
42
65
37
17
18
18
19
15
13
8
25

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

37
29
56
78
69
71
79
81
65
51
36
53
62
75
92
83
48
38
27
20
16
12
5
9

Precipitation Amount (mm)

0
0
0.3
0.6
0.3
0.4
0.5
0.5
0.3
0
0
0
0.3
0.6
0.8
0.7
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
13
13
13
13
12
12
12
11
11
11
12
12
12
13
14
16
16
17
18
18
18
19

Feels Like (°C)

9
10
10
10
11
10
10
10
10
9
9
9
10
10
11
11
11
12
12
12
13
16
16
16

Dew Point (°C)

12
12
12
12
12
12
12
12
11
11
11
11
11
11
12
12
12
13
12
12
12
12
12
12

Relative Humidity (%)

95
95
95
96
96
98
98
96
98
98
100
96
96
96
95
92
86
83
78
73
68
66
64
62

Pressure (mb)

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

Ozone (du)

384
387
387
388
388
388
388
388
386
384
382
383
385
381
377
376
375
374
373
372
371
368
365
362

Wednesday 20

Waxing Crescent 18%

10:03

02:03

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: 05:35, Set: 21:35, Transit: 13:36. Moon - Rise: 10:03, Set: 02:03. Civil Dark: 22:18 - 04:51. Nautical Dark: 23:20 - 03:49. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

72
77
80
85
89
81
74
67
65
73
87
91
96
100
98
96
93
89
86
85
69
53
38
34

Low Clouds (% Sky Obscured)

29
19
19
21
21
27
31
36
51
67
86
91
94
97
95
93
91
70
49
25
24
22
19
13

Medium Clouds (% Sky Obscured)

30
25
25
28
26
20
14
11
8
4
0
11
22
33
25
14
0
10
22
33
29
21
14
14

High Clouds (% Sky Obscured)

29
18
23
29
27
16
9
2
14
23
30
49
71
92
65
38
11
14
14
14
11
7
2
2

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 (%)

8
3
3
2
0
0
0
0
0
0
0
2
1
1
8
11
13
13
12
11
10
8
1
2

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)

13
11
9
8
7
7
7
7
7
7
6
6
6
7
7
7
8
8
8
8
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
17
13
13
14
13
12
12
12
11
11
12
12
12
14
14
15
15
16
16
21
21
20

Dew Point (°C)

12
12
12
12
12
11
11
11
11
11
11
11
11
12
12
12
13
13
12
12
11
12
12
12

Relative Humidity (%)

66
71
77
80
87
92
92
92
92
92
90
92
90
90
89
83
77
72
65
59
53
55
55
56

Pressure (mb)

1021
1022
1022
1023
1023
1023
1024
1024
1024
1025
1025
1025
1025
1026
1026
1026
1027
1027
1027
1027
1027
1027
1027
1027

Ozone (du)

359
356
352
352
351
351
349
348
347
344
342
339
339
339
340
338
337
336
336
336
336
333
331
329

Thursday 21

Waxing Crescent 31%

11:32

02:26

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

Sun - Rise: 05:34, Set: 21:36, Transit: 13:36. Moon - Rise: 11:32, Set: 02:26. Civil Dark: 22:20 - 04:50. Nautical Dark: 23:23 - 03:46. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

32
29
23
17
11
12
13
15
16
15
10
11
12
13
27
41
56
64
75
85

Low Clouds (% Sky Obscured)

7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
25
35

Medium Clouds (% Sky Obscured)

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

High Clouds (% Sky Obscured)

1
1
2
3
3
6
11
15
16
15
10
11
12
4
15
28
40
46
60
69

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 (%)

2
1
1
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
19
18
17
15
13
13
12
12
11
11
11
12
13
14
15
17
19
20
21

Feels Like (°C)

20
20
20
17
17
17
16
15
15
11
11
11
11
11
10
16
16
17
18
18

Dew Point (°C)

13
13
13
13
12
12
12
11
11
11
11
10
10
11
11
11
11
11
10
10

Relative Humidity (%)

62
67
72
78
83
92
93
95
95
95
96
95
90
87
84
74
65
58
54
49

Pressure (mb)

1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1027
1026
1026
1026
1026
1025

Ozone (du)

329
329
329
328
327
326
327
327
328
330
333
335
337
338
340
342
343
345
345
344

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

Generated: 15/05/26 18:37:45. Forecast: 15/05/26 to 21/05/26. Timezone: UTC+2.00