Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 7

Waning Crescent 10%

03:04

18:52

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: 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)

93
95
96
97
88
87
99
100
100
100
100
99
98
100
100
100
100
100
100
98
97
100
100
100

Low Clouds (% Sky Obscured)

38
26
40
3
20
23
21
24
31
34
57
79
81
67
59
63
57
77
82
71
80
86
75
72

Medium Clouds (% Sky Obscured)

13
53
83
90
12
18
92
46
31
51
27
31
83
98
77
99
100
84
98
72
46
100
100
100

High Clouds (% Sky Obscured)

93
95
96
78
71
87
93
100
100
97
100
91
69
100
100
100
100
100
75
75
48
14
61
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

1
0
0
2
0
1
3
4
1
1
2
2
1
7
5
17
17
28
45
56
48
61
95
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
1
2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
17
17
16
16
16
16
16
16
16
16
15
14
13
14
14
14
14
14
15
14
11
13
15

Relative Humidity (%)

64
72
74
77
81
84
88
89
88
88
89
88
82
79
79
77
76
72
73
78
74
62
77
92

Pressure (mb)

1016
1016
1015
1015
1015
1015
1014
1014
1014
1013
1013
1012
1012
1011
1011
1011
1011
1010
1010
1009
1009
1008
1007
1007

Ozone (du)

294
295
295
296
296
296
296
296
296
296
297
295
295
295
295
294
293
292
291
291
293
294
295
296

Tuesday 8

Waning Crescent 4%

04:34

19:14

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 OK
02 OK
03 OK
04 OK
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: 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)

100
100
100
100
100
41
33
30
32
21
27
52
67
49
28
47
59
85
82
73
80
82
81
63

Low Clouds (% Sky Obscured)

83
79
91
63
77
23
24
30
32
19
23
52
67
28
21
23
53
81
71
56
75
80
78
48

Medium Clouds (% Sky Obscured)

100
95
49
52
10
7
8
0
0
0
0
0
0
5
0
8
0
16
14
12
10
9
9
6

High Clouds (% Sky Obscured)

99
73
100
100
88
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

2
5
8
9
9
9
9
9
9
9
9
9
9
9
9
9
7
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

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

Precipitation Probability (%)

95
95
95
66
7
3
5
6
5
7
14
12
26
29
24
35
35
40
44
43
42
34
25
9

Precipitation Amount (mm)

1.6
0.4
1.3
0.2
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
9
10
10
9
7
7
8
8
9
9
9
9
8
10
12
14
14
15
15
14
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
96
95
95
93
89
89
90
92
90
90
90
86
89
90
84
77
72
69
57
52
51
58
65

Pressure (mb)

1006
1006
1005
1005
1006
1007
1008
1008
1008
1009
1009
1009
1010
1010
1011
1011
1012
1013
1014
1014
1015
1015
1015
1016

Ozone (du)

294
300
305
311
316
323
326
326
327
327
328
331
342
353
335
331
330
328
327
327
326
327
327
329

Wednesday 9

Waning Crescent 1%

06:01

19:30

18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 OK
00 OK
01 OK
02 Bad
03 Bad
04 OK
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: 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)

78
83
81
74
55
35
40
42
54
51
27
70
79
94
87
74
73
84
79
95
96
97
98
94

Low Clouds (% Sky Obscured)

78
77
76
74
44
21
37
37
43
39
27
50
50
49
60
55
57
46
31
31
29
29
26
25

Medium Clouds (% Sky Obscured)

2
10
8
3
9
8
0
1
8
13
0
6
11
24
28
25
28
42
39
52
58
60
57
44

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
1
17
20
20
12
1
1
1
9
20
21
26
27
35

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 (%)

14
12
13
3
1
1
1
3
0
1
1
1
7
2
1
1
1
20
5
0
1
1
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
10
9
7
5
4
4
3
3
3
3
3
3
4
4
4
5
6
7
7
7
7
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
63
55
58
58
65
75
79
80
79
80
81
81
81
79
72
64
56
49
45
42
40
41
43

Pressure (mb)

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

Ozone (du)

330
330
329
332
333
332
330
328
326
322
323
321
321
320
319
319
317
316
315
315
314
314
313
314

Thursday 10

Waning Crescent 0%

07:25

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: 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)

90
85
74
87
62
64
99
96
100
100
100
100
100
100
100
100
98
72
62
61
59
62
56
51

Low Clouds (% Sky Obscured)

24
21
20
17
14
10
5
0
1
2
3
2
1
0
1
2
2
14
25
39
41
43
45
37

Medium Clouds (% Sky Obscured)

30
21
20
19
21
22
22
23
28
29
29
57
96
100
100
100
96
51
29
27
21
18
12
9

High Clouds (% Sky Obscured)

51
61
50
69
44
48
96
95
100
100
100
83
64
41
47
3
0
0
0
0
0
0
0
0

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
1
1
2
8
14
18
18
14
6
13
22
25
21

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
56
61
67
73
75
75
74
72
71
71
71
71
72
71
65
60
60
54
48
44
42
42
46

Pressure (mb)

1019
1018
1018
1018
1018
1019
1018
1018
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1019

Ozone (du)

313
312
313
314
312
310
310
310
310
310
310
311
312
314
315
320
320
316
315
316
315
314
312
312

Friday 11

New Moon 2%

08:46

19:55

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

Sun - Rise: 07:09, Set: 20:03, Transit: 13:35. 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)

38
30
32
34
36
40
41
43
40
38
34
32
31
27
32
37
42
54
66
77
82
88
93
96

Low Clouds (% Sky Obscured)

28
23
26
29
36
40
41
43
40
38
34
32
28
25
26
24
23
25
28
31
45
59
72
55

Medium Clouds (% Sky Obscured)

6
4
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
18

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
6
11
19
38
57
74
76
79
83
89

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 (%)

16
9
20
18
3
7
6
0
1
2
1
3
5
2
2
3
0
2
4
2
5
8
8
8

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
18
17
17
17
16
16
15
15
15
14
14
13
14
13
13
14
15
16
17
17
22
22
22

Dew Point (°C)

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

Relative Humidity (%)

52
61
73
78
80
83
83
84
84
86
87
87
87
89
84
76
68
61
57
55
51
53
55
57

Pressure (mb)

1019
1020
1021
1021
1022
1023
1023
1023
1023
1023
1023
1024
1024
1024
1025
1024
1024
1024
1024
1024
1023
1023
1022
1022

Ozone (du)

310
310
309
309
310
310
308
307
307
307
306
306
306
305
304
304
303
302
302
302
302
300
298
296

Saturday 12

Waxing Crescent 7%

10:06

20:06

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: 07:11, Set: 20:01, Transit: 13:35. Moon - Rise: 10:06, Set: 20:06. Civil Dark: 20:35 - 06:37. Nautical Dark: 21:16 - 05:56. Astro Dark: 22:00 - 05:12

Total Clouds (% Sky Obscured)

98
100
97
95
92
95
97
100
100
100
100
100
100
100
100
100
100
99
98
97
95
93
91
88

Low Clouds (% Sky Obscured)

40
22
16
7
0
9
18
29
26
27
24
29
31
36
42
48
50
63
79
96
93
90
89
82

Medium Clouds (% Sky Obscured)

37
55
47
39
31
22
14
8
8
12
17
32
43
53
63
69
78
82
87
91
69
49
29
27

High Clouds (% Sky Obscured)

95
100
96
92
90
93
97
100
100
100
100
98
95
92
95
98
100
91
78
62
35
16
0
0

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 (%)

4
0
0
0
0
0
0
0
0
1
0
2
3
6
15
17
13
32
42
53
53
55
50
47

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

Chance of Frost

Temperature (°C)

21
19
18
17
16
15
15
15
15
15
15
15
15
15
15
16
17
18
19
19
20
20
19
19

Feels Like (°C)

22
22
22
16
17
17
16
16
17
15
15
15
15
15
15
15
15
15
16
16
16
19
19
18

Dew Point (°C)

13
14
14
13
13
13
13
13
13
13
13
13
13
13
13
14
14
15
15
14
14
14
14
14

Relative Humidity (%)

62
69
74
78
81
85
86
86
87
87
87
89
89
89
87
86
83
82
77
72
68
69
69
70

Pressure (mb)

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

Ozone (du)

296
296
295
296
297
298
299
299
300
300
299
299
300
301
302
303
303
304
306
309
312
311
310
309

Sunday 13

Waxing Crescent 13%

11:25

20:18

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 OK
11 OK
12 Bad
13 Bad

Sun - Rise: 07:13, Set: 19:58, Transit: 13:34. Moon - Rise: 11:25, Set: 20:18. Civil Dark: 20:33 - 06:39. Nautical Dark: 21:14 - 05:58. Astro Dark: 21:57 - 05:14

Total Clouds (% Sky Obscured)

86
83
81
80
79
80
81
82
85
90
94
84
74
65
57
51
40
43
45
48

Low Clouds (% Sky Obscured)

76
68
69
70
71
63
54
47
56
63
73
67
60
54
45
40
29
33
38
38

Medium Clouds (% Sky Obscured)

23
19
24
24
23
20
14
9
12
12
16
10
8
6
4
2
0
1
2
3

High Clouds (% Sky Obscured)

0
0
0
0
0
10
18
23
18
14
11
9
6
3
3
3
3
2
1
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

45
45
54
55
48
27
28
37
23
15
5
10
8
0
3
4
1
6
8
1

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
19
18
18
17
17
17
17
17
17
16
16
16
15
17
18
19
20
21

Feels Like (°C)

18
19
20
18
18
18
19
19
19
16
16
16
16
16
16
17
17
17
18
18

Dew Point (°C)

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

Relative Humidity (%)

76
82
89
90
90
92
92
93
95
93
93
93
93
95
95
85
77
69
62
56

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1019

Ozone (du)

306
303
300
298
296
294
292
290
288
286
284
283
281
280
279
278
277
276
276
276

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

Generated: 07/09/26 18:54:58. Forecast: 07/09/26 to 13/09/26. Timezone: UTC+2.00