Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 1

Waning Gibbous 74%

21:26

13:40

14 Bad
15 Bad
16 Bad
17 Bad
18 Good
19 Good
20 Good
21 Good
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: 06:53, Set: 20:26, Transit: 13:39. Moon - Rise: 21:26, Set: 13:40. Civil Dark: 21:02 - 06:18. Nautical Dark: 21:45 - 05:35. Astro Dark: 22:33 - 04:47

Total Clouds (% Sky Obscured)

58
52
61
48
8
1
10
13
100
96
95
100
100
100
100
100
99
75
93
62
92
100
100
100

Low Clouds (% Sky Obscured)

29
32
23
15
4
0
6
6
0
0
0
0
0
23
0
16
16
19
30
30
37
36
29
35

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
4
4
27
39
46
100
100
100
100
100
98
64
88
31
16
56
88
98

High Clouds (% Sky Obscured)

40
43
42
30
2
0
2
5
100
96
88
100
100
100
100
100
8
2
8
5
61
100
100
91

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
7
7
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
1
0
0
0
0
0
0
0
0
0
0
1
2
2
1
1
2
2
6
38
35
25
20

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
12
11
9
7
5
4
3
4
4
5
6
6
7
7
7
7
8
9
10
11
12
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

46
44
44
48
50
56
67
74
79
80
82
82
79
77
76
76
79
84
86
80
71
71
62
54

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1020
1020
1020
1020
1019
1019
1019
1019
1020
1020
1020
1020
1020

Ozone (du)

314
315
317
319
320
318
315
314
315
316
317
317
319
320
323
324
324
322
321
320
316
314
315
317

Wednesday 2

Waning Gibbous 63%

21:48

No Set

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:55, Set: 20:24, Transit: 13:38. Moon - Rise: 21:48, Set: No Set. Civil Dark: 20:59 - 06:20. Nautical Dark: 21:42 - 05:37. Astro Dark: 22:30 - 04:50

Total Clouds (% Sky Obscured)

100
75
98
96
94
100
95
96
100
100
84
74
100
90
81
80
91
73
100
100
100
100
99
97

Low Clouds (% Sky Obscured)

33
42
42
41
27
55
39
36
91
90
52
32
67
63
55
63
69
58
84
47
66
99
95
91

Medium Clouds (% Sky Obscured)

93
27
91
95
94
93
27
86
100
82
63
22
25
25
16
13
7
7
11
14
51
73
90
81

High Clouds (% Sky Obscured)

100
73
44
50
7
100
39
39
37
19
2
1
15
1
20
24
66
24
100
100
100
92
84
33

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 (%)

6
3
0
0
0
0
0
3
10
22
10
5
8
13
3
4
3
3
3
5
9
20
17
20

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
13
12
12
11
9
7
6
6
7
8
9
9
10
10
11
11
11
12
13
17
17
14
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

51
50
50
51
56
61
66
72
78
78
81
86
89
86
86
83
86
86
82
77
73
75
85
91

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1020
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

314
310
307
305
303
301
301
302
303
303
302
301
301
299
299
298
297
295
294
294
294
292
290
289

Thursday 3

Waning Gibbous 51%

22:19

15:07

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
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:56, Set: 20:22, Transit: 13:38. Moon - Rise: 22:19, Set: 15:07. Civil Dark: 20:57 - 06:22. Nautical Dark: 21:40 - 05:39. Astro Dark: 22:27 - 04:52

Total Clouds (% Sky Obscured)

100
97
99
97
99
95
83
91
98
85
87
85
91
100
93
90
100
98
87
81
87
90
95
94

Low Clouds (% Sky Obscured)

91
81
76
52
53
34
54
68
62
57
69
73
82
79
82
83
97
87
62
43
40
63
61
81

Medium Clouds (% Sky Obscured)

47
23
29
25
29
26
21
30
27
18
21
18
8
18
16
51
27
35
43
57
69
59
76
47

High Clouds (% Sky Obscured)

100
70
88
64
84
86
32
14
25
80
56
12
36
75
31
11
79
81
72
59
51
55
50
49

ISS Passover

Visibility (miles)

8
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
Very Light Rain

Precipitation Probability (%)

30
26
33
25
22
28
27
26
17
13
2
0
0
0
0
0
0
0
4
10
19
40
49
62

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
0.2

Wind Speed/Direction (mph)

17
18
17
15
15
13
11
10
10
11
12
12
12
12
12
14
14
15
15
17
18
20
20
19

Chance of Frost

Temperature (°C)

21
22
21
22
22
21
21
20
20
20
20
19
19
19
19
19
19
19
19
20
21
22
23
23

Feels Like (°C)

20
21
20
20
20
21
20
20
19
19
20
19
19
18
18
17
18
18
17
19
19
20
20
20

Dew Point (°C)

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

Relative Humidity (%)

88
92
92
89
87
88
91
95
95
96
96
96
96
95
96
93
95
95
93
86
79
69
67
66

Pressure (mb)

1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013

Ozone (du)

289
289
289
289
288
287
286
286
285
286
286
285
285
284
284
283
282
283
286
287
287
286
285
285

Friday 4

Third Quarter 39%

23:06

16:28

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 OK
03 OK
04 OK
05 OK
06 OK
07 Bad
08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad

Sun - Rise: 06:58, Set: 20:19, Transit: 13:38. Moon - Rise: 23:06, Set: 16:28. Civil Dark: 20:54 - 06:23. Nautical Dark: 21:37 - 05:41. Astro Dark: 22:24 - 04:54

Total Clouds (% Sky Obscured)

94
100
100
100
100
100
100
100
100
87
76
65
29
28
25
27
29
67
73
71
74
73
76
76

Low Clouds (% Sky Obscured)

58
42
48
75
76
75
72
67
67
34
25
21
21
21
21
22
24
67
73
71
74
35
24
24

Medium Clouds (% Sky Obscured)

75
87
96
96
96
96
97
98
100
87
76
30
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

50
76
89
98
96
94
95
98
100
82
60
36
3
2
0
0
0
0
0
0
28
41
51
56

ISS Passover

Visibility (miles)

7
6
6
3
4
4
2
6
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

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

Precipitation Probability (%)

77
83
95
95
95
95
95
88
65
52
34
4
3
1
0
1
2
3
4
18
5
1
0
0

Precipitation Amount (mm)

0.5
0.6
0.5
2.7
1.1
2
1.3
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

19
19
17
16
14
13
11
11
10
10
11
9
9
9
9
8
8
8
8
10
11
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

17
18
19
20
20
20
19
19
18
18
16
16
14
13
12
12
11
11
11
11
12
10
8
8

Relative Humidity (%)

67
74
80
88
96
96
98
98
96
95
90
90
87
86
84
86
84
84
80
77
74
63
52
51

Pressure (mb)

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

Ozone (du)

285
285
286
286
287
288
291
293
298
303
311
319
325
332
339
343
344
337
331
328
328
326
325
322

Saturday 5

Waning Crescent 28%

00:12

17:33

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

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)

72
36
33
36
20
12
20
47
53
60
66
74
73
70
66
52
37
23
24
23
23
17
13
5

Low Clouds (% Sky Obscured)

22
23
22
28
11
0
0
0
0
2
3
5
6
7
8
6
5
3
2
1
0
0
0
1

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
5
9
16
15
10
5
11
7
5
4
4
4
2
1
0

High Clouds (% Sky Obscured)

52
13
10
10
10
12
19
34
43
36
37
34
30
30
22
5
6
4
9
14
23
17
13
5

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
1
3
1
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)

14
13
13
12
10
8
6
5
4
3
3
3
3
3
4
4
4
4
5
6
7
8
8
8

Chance of Frost

Temperature (°C)

19
19
19
19
18
17
16
14
13
13
12
11
11
11
11
10
11
11
11
14
16
18
19
20

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
51
53
54
54
61
72
78
79
79
80
80
80
81
83
84
84
83
83
74
66
60
55
51

Pressure (mb)

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

Ozone (du)

318
315
313
310
309
308
308
307
306
303
303
303
303
302
302
301
301
300
300
298
297
295
294
293

Sunday 6

Waning Crescent 18%

01:34

18:20

14 Good
15 OK
16 OK
17 OK
18 OK
19 Good
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 OK
13 OK

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)

15
25
35
25
21
14
34
54
73
82
91
100
100
100
100
100
100
100
85
71
52
46
42
38

Low Clouds (% Sky Obscured)

2
2
3
2
2
0
0
0
0
0
0
0
7
13
19
31
42
33
33
37
41
40
36
17

Medium Clouds (% Sky Obscured)

2
1
2
3
4
5
6
7
8
11
16
23
51
71
90
86
82
79
64
50
35
33
30
31

High Clouds (% Sky Obscured)

4
2
0
4
9
13
34
54
73
82
91
99
99
100
100
97
93
89
59
29
0
3
6
8

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
2
4
14
26
28
28
20
9
2
4
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
23
23
23
23
24
24
19
19
19
19
18
18
15
15
14
14
14
14
15
16
16
17
18

Dew Point (°C)

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

Relative Humidity (%)

47
47
47
47
52
58
66
67
69
72
72
71
72
69
67
64
63
62
61
56
53
50
43
38

Pressure (mb)

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

Ozone (du)

292
292
292
293
293
293
293
292
291
290
289
289
288
289
290
290
292
294
296
298
300
302
302
302

Monday 7

Waning Crescent 10%

03:04

18:52

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

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)

51
69
87
84
81
77
84
91
98
84
69
58
57
56
55
73
85
92

Low Clouds (% Sky Obscured)

7
6
5
4
5
4
4
4
0
6
13
25
31
36
36
35
31
30

Medium Clouds (% Sky Obscured)

28
24
23
29
34
40
54
68
81
68
56
41
43
41
41
31
22
13

High Clouds (% Sky Obscured)

32
57
81
76
73
70
81
82
81
74
69
58
57
56
55
73
76
75

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
2
0
1
2
0
1
4
0
14
9
4
15
22
21
13
12
6

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
25
23
22
22
23
23
18
18
19
19
19
18
18
19
18
18
17

Dew Point (°C)

7
8
8
9
10
12
14
14
15
15
15
15
16
16
16
16
15
15

Relative Humidity (%)

33
35
37
39
47
56
66
70
73
77
81
85
89
90
92
93
92
93

Pressure (mb)

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

Ozone (du)

302
302
303
303
302
301
300
301
302
304
302
300
299
296
294
292
291
290

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

Generated: 01/09/26 14:21:23. Forecast: 01/09/26 to 07/09/26. Timezone: UTC+2.00