Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 5

Waning Crescent 38%

00:12

17:33

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

Sun - Rise: 07:00, Set: 20:17, Transit: 13:38. 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)

42
55
41
62
74
77
80
81
66
59
47
56
33
46
29
8
2
11
50
31
56
29
78
62

Low Clouds (% Sky Obscured)

42
39
41
59
72
75
80
80
65
59
13
5
0
0
0
6
0
7
14
11
3
3
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
3
5
8
21
55

High Clouds (% Sky Obscured)

42
48
41
10
6
11
2
2
5
7
47
48
29
44
21
1
2
3
37
7
31
18
20
23

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 (%)

18
13
6
7
13
3
11
3
9
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)

9
16
17
17
16
16
15
15
13
13
10
6
4
3
3
3
3
3
4
4
4
4
5
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
15
15
15
16
15
16
15
16
15
15
14
13
12
13
12
13
13
12
12
12
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

72
67
62
57
59
59
63
65
66
63
59
67
76
78
79
81
83
83
84
84
86
86
87
83

Pressure (mb)

1019
1020
1021
1022
1022
1023
1023
1024
1024
1025
1025
1025
1026
1026
1026
1026
1027
1027
1026
1026
1026
1026
1026
1026

Ozone (du)

322
320
318
314
312
309
309
307
305
305
304
302
301
300
299
297
295
294
293
292
290
291
291
290

Sunday 6

Waning Crescent 28%

01:34

18:20

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 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)

67
61
64
90
90
70
58
68
63
58
92
67
70
100
88
86
78
96
61
100
66
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
1
27
5
0
0
0
7
0
0
0
0
0
0
0
0
0
0
1
0
0
0

Medium Clouds (% Sky Obscured)

61
61
64
89
88
70
58
17
10
9
14
11
14
10
16
13
18
87
61
95
66
87
80
7

High Clouds (% Sky Obscured)

39
17
20
71
23
4
2
40
41
40
64
67
70
100
88
86
78
71
9
83
10
87
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
0
0
0
0
0
0
0
0
1
0
3
7
16
20
13
4
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)

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

Chance of Frost

Temperature (°C)

13
15
17
19
20
21
21
22
22
22
21
19
18
17
17
17
16
16
16
16
16
16
16
17

Feels Like (°C)

11
13
15
17
18
18
18
19
19
20
20
17
18
16
15
15
15
15
14
14
14
14
14
15

Dew Point (°C)

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

Relative Humidity (%)

72
65
56
50
46
41
40
35
35
41
50
53
57
58
58
58
57
58
61
67
65
63
61
55

Pressure (mb)

1026
1026
1026
1025
1025
1024
1023
1023
1022
1021
1021
1020
1020
1020
1019
1019
1018
1018
1017
1017
1016
1015
1015
1015

Ozone (du)

289
288
287
288
288
290
290
290
289
290
290
291
292
291
290
290
289
288
287
288
290
291
292
294

Monday 7

Waning Crescent 18%

03:04

18:52

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

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)

27
48
42
74
81
78
100
100
73
71
90
100
100
100
94
88
83
88
94
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
11
30
25
24
24
23
25
28
29
78
36
38
36
30
27
33
39
41
40
36
33
33

Medium Clouds (% Sky Obscured)

0
48
42
67
0
17
35
48
40
29
23
23
22
24
21
23
66
76
92
98
99
99
100
100

High Clouds (% Sky Obscured)

27
25
9
0
81
78
100
100
73
66
85
100
100
100
87
74
57
69
84
100
99
100
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
8
13
13
19
19
14
13
11
4
4
4
2
9
11
8
19
28
34
31

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

Chance of Frost

Temperature (°C)

19
21
22
24
25
25
24
23
22
21
20
20
20
19
18
17
17
16
16
16
16
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

52
48
44
37
34
34
37
44
50
50
63
74
71
70
70
73
73
74
78
82
81
78
79
81

Pressure (mb)

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

Ozone (du)

296
296
297
299
298
297
296
296
296
297
298
299
301
301
301
299
298
297
296
296
297
298
299
302

Tuesday 8

Waning Crescent 10%

04:34

19:14

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

Sun - Rise: 07:05, Set: 20:10, Transit: 13:37. 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)

100
100
98
97
95
89
64
37
32
20
12
23
35
78
57
49
65
72
69
76
77
75
71
40

Low Clouds (% Sky Obscured)

33
38
68
76
43
23
24
24
20
14
12
18
27
31
37
45
62
60
48
46
48
42
40
34

Medium Clouds (% Sky Obscured)

100
73
30
22
20
16
12
6
4
2
0
2
5
78
38
6
1
9
17
25
25
25
30
1

High Clouds (% Sky Obscured)

100
100
80
53
35
40
18
0
1
0
0
0
0
0
0
0
0
30
60
76
77
75
71
0

ISS Passover

Visibility (miles)

9
9
8
9
9
9
9
9
9
9
9
9
9
7
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 (%)

36
43
38
30
12
13
10
6
11
10
10
19
46
44
29
19
26
17
34
35
47
57
57
18

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
67
67
70
58
46
44
42
45
47
52
59
65
82
82
83
83
79
83
87
89
90
89
84

Pressure (mb)

1013
1013
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

303
305
308
307
308
311
313
316
319
322
325
327
329
332
335
337
340
334
333
335
336
337
337
336

Wednesday 9

Waning Crescent 4%

06:01

19:30

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 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)

46
52
56
62
70
78
86
94
88
81
73
77
79
80
80
77
77
78
78
77
75
73
75
80

Low Clouds (% Sky Obscured)

32
32
41
52
64
71
77
83
78
75
69
58
45
32
37
42
44
46
43
43
40
37
34
47

Medium Clouds (% Sky Obscured)

2
4
3
2
2
2
2
3
0
0
0
0
1
3
30
57
77
78
78
77
75
73
75
68

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
2
4
31
58
80
80
77
77
78
78
75
70
65
65
47

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

Precipitation Probability (%)

25
31
43
50
56
55
52
45
45
45
45
44
39
11
12
14
4
11
14
13
17
19
22
27

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
65
57
56
55
54
55
54
54
58
62
68
69
70
71
69
69
69
72
76
81
81
84
84

Pressure (mb)

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

Ozone (du)

336
335
335
334
334
333
331
328
326
324
322
319
318
316
314
313
312
310
311
311
312
312
313
313

Thursday 10

Waning Crescent 1%

07:25

19:43

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
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 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)

85
87
90
91
91
90
88
86
80
74
68
73
76
82
82
77
74
73
75
79
74
68
59
50

Low Clouds (% Sky Obscured)

59
78
82
84
87
87
84
78
70
63
50
52
51
62
72
77
74
73
75
79
60
41
20
15

Medium Clouds (% Sky Obscured)

66
68
67
70
70
56
41
29
23
16
9
17
22
27
25
22
21
39
61
79
74
68
59
50

High Clouds (% Sky Obscured)

24
2
2
2
2
20
34
50
45
45
45
45
40
40
40
35
30
34
38
47
51
51
55
49

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
8

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 (%)

29
27
26
24
16
12
11
5
12
14
4
4
4
2
11
15
19
23
25
27
31
34
32
32

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

83
82
82
79
78
77
75
71
68
67
65
64
65
66
67
69
74
79
83
86
90
89
87
87

Pressure (mb)

1015
1015
1015
1016
1016
1016
1016
1016
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1016

Ozone (du)

313
314
314
310
306
302
299
296
294
292
290
289
288
287
286
284
283
282
282
282
282
283
284
285

Friday 11

New Moon 0%

08:46

19:55

Sun - Rise: 07:09, Set: 20:03, Transit: 13:36. Moon - Rise: 08:46, Set: 19:55. Civil Dark: 20:37 - 06:35. Nautical Dark: 21:19 - 05:54. Astro Dark: 22:03 - 05:10

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 05/09/26 09:13:05. Forecast: 05/09/26 to 11/09/26. Timezone: UTC+2.00