Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 4

Third Quarter 39%

23:06

No Set

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

Sun - Rise: 06:58, Set: 20:19, Transit: 13:38. Moon - Rise: 23:06, Set: No Set. Civil Dark: 20:54 - 06:23. Nautical Dark: 21:37 - 05:41. Astro Dark: 22:24 - 04:54

Total Clouds (% Sky Obscured)

100
100
100
100
100
45
55
2
6
0
0
19
25
20
59
69
80
77
77
62
74
77
80
81

Low Clouds (% Sky Obscured)

32
42
29
0
0
0
9
2
6
0
0
19
23
17
27
34
42
39
57
59
72
75
80
80

Medium Clouds (% Sky Obscured)

89
100
89
79
100
45
55
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
100
100
100
100
40
40
0
0
0
0
0
0
0
31
45
63
48
44
10
6
11
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 (%)

28
51
11
0
0
0
0
0
0
0
0
1
5
15
5
6
18
13
6
7
13
3
11
3

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)

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

Chance of Frost

Temperature (°C)

19
19
19
19
18
17
17
16
16
15
15
15
14
14
14
15
16
17
18
18
19
19
19
19

Feels Like (°C)

17
16
16
15
14
14
14
13
15
15
14
14
14
14
13
12
13
14
14
15
16
15
16
15

Dew Point (°C)

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

Relative Humidity (%)

81
75
69
60
59
59
60
64
68
70
71
73
74
78
79
76
72
67
62
57
59
59
63
65

Pressure (mb)

1012
1012
1013
1013
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1018
1019
1019
1020
1021
1022
1022
1023
1023
1024

Ozone (du)

293
294
297
301
306
313
325
325
325
328
327
327
325
324
323
323
322
320
318
314
312
309
309
307

Saturday 5

Waning Crescent 28%

00:12

17:33

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

Sun - Rise: 07:00, Set: 20:17, Transit: 13:37. Moon - Rise: 00:12, Set: 17:33. Civil Dark: 20:52 - 06:25. Nautical Dark: 21:34 - 05:43. Astro Dark: 22:21 - 04:57

Total Clouds (% Sky Obscured)

66
59
47
56
33
46
29
8
2
11
50
31
56
29
78
62
67
61
64
90
90
70
58
68

Low Clouds (% Sky Obscured)

65
59
13
5
0
0
0
6
0
7
14
11
3
3
0
0
0
0
0
1
27
5
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
3
5
8
21
55
61
61
64
89
88
70
58
17

High Clouds (% Sky Obscured)

5
7
47
48
29
44
21
1
2
3
37
7
31
18
20
23
39
17
20
71
23
4
2
40

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 (%)

9
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)

13
13
10
6
4
3
3
3
3
3
4
4
4
4
5
4
6
7
8
9
10
10
10
10

Chance of Frost

Temperature (°C)

18
18
17
16
14
13
13
12
12
12
11
11
11
11
11
11
13
15
17
19
20
21
21
22

Feels Like (°C)

16
15
15
14
13
12
13
12
13
13
12
12
12
10
10
10
11
13
15
17
18
18
18
19

Dew Point (°C)

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

Relative Humidity (%)

66
63
59
67
76
78
79
81
83
83
84
84
86
86
87
83
72
65
56
50
46
41
40
35

Pressure (mb)

1024
1025
1025
1025
1026
1026
1026
1026
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026
1025
1025
1024
1023
1023

Ozone (du)

305
305
304
302
301
300
299
297
295
294
293
292
290
291
291
290
289
288
287
288
288
290
290
290

Sunday 6

Waning Crescent 18%

01:34

18:20

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 OK
10 OK
11 OK
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 07:01, Set: 20:15, Transit: 13:37. Moon - Rise: 01:34, Set: 18:20. Civil Dark: 20:49 - 06:27. Nautical Dark: 21:32 - 05:45. Astro Dark: 22:18 - 04:59

Total Clouds (% Sky Obscured)

63
58
92
67
70
100
88
86
78
96
61
100
66
100
100
100
27
48
42
74
81
78
100
100

Low Clouds (% Sky Obscured)

0
7
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
11
30
25
24
24
23

Medium Clouds (% Sky Obscured)

10
9
14
11
14
10
16
13
18
87
61
95
66
87
80
7
0
48
42
67
0
17
35
48

High Clouds (% Sky Obscured)

41
40
64
67
70
100
88
86
78
71
9
83
10
87
100
100
27
25
9
0
81
78
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
1
0
3
7
16
20
13
4
0
0
0
0
0
0
0
8
13
13

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)

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

Chance of Frost

Temperature (°C)

22
22
21
19
18
17
17
17
16
16
16
16
16
16
16
17
19
21
22
24
25
25
24
23

Feels Like (°C)

19
20
20
17
18
16
15
15
15
15
14
14
14
14
14
15
16
19
20
21
22
23
23
20

Dew Point (°C)

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

Relative Humidity (%)

35
41
50
53
57
58
58
58
57
58
61
67
65
63
61
55
52
48
44
37
34
34
37
44

Pressure (mb)

1022
1021
1021
1020
1020
1020
1019
1019
1018
1018
1017
1017
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

289
290
290
291
292
291
290
290
289
288
287
288
290
291
292
294
296
296
297
299
298
297
296
296

Monday 7

Waning Crescent 10%

03:04

18:52

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 OK

Sun - Rise: 07:03, Set: 20:12, Transit: 13:37. Moon - Rise: 03:04, Set: 18:52. Civil Dark: 20:47 - 06:28. Nautical Dark: 21:29 - 05:47. Astro Dark: 22:15 - 05:01

Total Clouds (% Sky Obscured)

73
71
90
100
100
100
94
88
83
88
94
100
100
100
100
100
100
100
98
97
95
89
64
37

Low Clouds (% Sky Obscured)

25
28
29
78
36
38
36
30
27
33
39
41
40
36
33
33
33
38
68
76
43
23
24
24

Medium Clouds (% Sky Obscured)

40
29
23
23
22
24
21
23
66
76
92
98
99
99
100
100
100
73
30
22
20
16
12
6

High Clouds (% Sky Obscured)

73
66
85
100
100
100
87
74
57
69
84
100
99
100
100
100
100
100
80
53
35
40
18
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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 (%)

19
19
14
13
11
4
4
4
2
9
11
8
19
28
34
31
36
43
38
30
12
13
10
6

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)

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

Chance of Frost

Temperature (°C)

22
21
20
20
20
19
18
17
17
16
16
16
16
16
16
16
16
17
17
17
18
18
19
19

Feels Like (°C)

19
20
20
19
19
17
16
15
15
14
14
14
14
14
14
14
14
14
14
14
14
14
14
15

Dew Point (°C)

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

Relative Humidity (%)

50
50
63
74
71
70
70
73
73
74
78
82
81
78
79
81
74
67
67
70
58
46
44
42

Pressure (mb)

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

Ozone (du)

296
297
298
299
301
301
301
299
298
297
296
296
297
298
299
302
303
305
308
307
308
311
313
316

Tuesday 8

Waning Crescent 4%

04:34

19:14

17 OK
18 OK
19 OK
20 OK
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: 07:05, Set: 20:10, Transit: 13:36. Moon - Rise: 04:34, Set: 19:14. Civil Dark: 20:45 - 06:30. Nautical Dark: 21:27 - 05:48. Astro Dark: 22:12 - 05:03

Total Clouds (% Sky Obscured)

32
20
12
23
35
78
57
49
65
72
69
76
77
75
71
40
46
52
56
62
70
78
86
94

Low Clouds (% Sky Obscured)

20
14
12
18
27
31
37
45
62
60
48
46
48
42
40
34
32
32
41
52
64
71
77
83

Medium Clouds (% Sky Obscured)

4
2
0
2
5
78
38
6
1
9
17
25
25
25
30
1
2
4
3
2
2
2
2
3

High Clouds (% Sky Obscured)

1
0
0
0
0
0
0
0
0
30
60
76
77
75
71
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

11
10
10
19
46
44
29
19
26
17
34
35
47
57
57
18
25
31
43
50
56
55
52
45

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
15
16
15
15
13
12
12
13
12
12
12
12
13
12
12
12
12
12
13
13
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

45
47
52
59
65
82
82
83
83
79
83
87
89
90
89
84
74
65
57
56
55
54
55
54

Pressure (mb)

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

Ozone (du)

319
322
325
327
329
332
335
337
340
334
333
335
336
337
337
336
336
335
335
334
334
333
331
328

Wednesday 9

Waning Crescent 1%

06:01

19:30

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: 07:06, Set: 20:08, Transit: 13:36. Moon - Rise: 06:01, Set: 19:30. Civil Dark: 20:42 - 06:32. Nautical Dark: 21:24 - 05:50. Astro Dark: 22:09 - 05:06

Total Clouds (% Sky Obscured)

88
81
73
77
79
80
80
77
77
78
78
77
75
73
75
80
85
87
90
91
91
90
88
86

Low Clouds (% Sky Obscured)

78
75
69
58
45
32
37
42
44
46
43
43
40
37
34
47
59
78
82
84
87
87
84
78

Medium Clouds (% Sky Obscured)

0
0
0
0
1
3
30
57
77
78
78
77
75
73
75
68
66
68
67
70
70
56
41
29

High Clouds (% Sky Obscured)

1
2
4
31
58
80
80
77
77
78
78
75
70
65
65
47
24
2
2
2
2
20
34
50

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 (%)

45
45
45
44
39
11
12
14
4
11
14
13
17
19
22
27
29
27
26
24
16
12
11
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

54
58
62
68
69
70
71
69
69
69
72
76
81
81
84
84
83
82
82
79
78
77
75
71

Pressure (mb)

1014
1014
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1016
1016
1016
1016
1016

Ozone (du)

326
324
322
319
318
316
314
313
312
310
311
311
312
312
313
313
313
314
314
310
306
302
299
296

Thursday 10

Waning Crescent 0%

07:25

19:43

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

Sun - Rise: 07:08, Set: 20:05, Transit: 13:36. Moon - Rise: 07:25, Set: 19:43. Civil Dark: 20:40 - 06:34. Nautical Dark: 21:21 - 05:52. Astro Dark: 22:06 - 05:08

Total Clouds (% Sky Obscured)

80
74
68
73
76
82
82
77
74
73
75
79
74
68
59
50
39
31
43
56
68

Low Clouds (% Sky Obscured)

70
63
50
52
51
62
72
77
74
73
75
79
60
41
20
15
9
3
25
46
67

Medium Clouds (% Sky Obscured)

23
16
9
17
22
27
25
22
21
39
61
79
74
68
59
50
39
31
21
11
1

High Clouds (% Sky Obscured)

45
45
45
45
40
40
40
35
30
34
38
47
51
51
55
49
35
23
18
15
11

ISS Passover

Visibility (miles)

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

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 (%)

12
14
4
4
4
2
11
15
19
23
25
27
31
34
32
32
32
37
35
32
29

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)

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

Chance of Frost

Temperature (°C)

19
18
17
17
16
15
14
14
13
13
13
13
13
13
13
13
14
16
17
18
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
67
65
64
65
66
67
69
74
79
83
86
90
89
87
87
80
75
71
66
62

Pressure (mb)

1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016
1016
1017
1017
1018
1018

Ozone (du)

294
292
290
289
288
287
286
284
283
282
282
282
282
283
284
285
297
309
321
323
325

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

Generated: 04/09/26 17:34:53. Forecast: 04/09/26 to 10/09/26. Timezone: UTC+2.00