Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 22

Waxing Gibbous 75%

18:19

00:45

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 OK
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad

Sun - Rise: 06:37, Set: 20:48, Transit: 13:42. Moon - Rise: 18:19, Set: 00:45. Civil Dark: 21:25 - 06:00. Nautical Dark: 22:11 - 05:14. Astro Dark: 23:05 - 04:21

Total Clouds (% Sky Obscured)

94
90
86
75
92
91
87
78
54
70
52
49
45
40
35
55
59
64
74
51
59
73
89
85

Low Clouds (% Sky Obscured)

73
70
86
30
80
67
72
70
46
67
52
49
45
40
35
55
59
64
74
51
59
73
88
83

Medium Clouds (% Sky Obscured)

27
31
31
7
22
32
23
13
19
13
0
0
0
0
0
0
0
0
0
0
0
0
20
13

High Clouds (% Sky Obscured)

5
0
0
0
0
0
0
0
0
0
0
5
0
0
0
0
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 (%)

16
7
0
18
7
3
2
3
0
1
2
2
12
7
7
19
21
16
17
1
2
3
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

15
15
16
16
17
17
17
16
16
16
15
14
13
13
12
11
11
11
11
11
11
11
11
12

Dew Point (°C)

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

Relative Humidity (%)

79
72
65
54
50
48
45
52
53
52
55
53
60
70
72
72
75
79
79
77
80
75
73
71

Pressure (mb)

1018
1018
1019
1019
1019
1019
1020
1020
1021
1021
1021
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023
1024
1024
1024

Ozone (du)

364
365
367
367
367
367
366
366
365
364
362
363
363
362
361
360
360
358
357
357
358
360
360
358

Sunday 23

Waxing Gibbous 83%

19:01

01:49

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

Sun - Rise: 06:38, Set: 20:46, Transit: 13:42. Moon - Rise: 19:01, Set: 01:49. Civil Dark: 21:23 - 06:02. Nautical Dark: 22:09 - 05:16. Astro Dark: 23:02 - 04:24

Total Clouds (% Sky Obscured)

83
70
81
81
65
81
88
65
61
55
33
32
34
9
2
0
0
0
0
12
17
21
16
0

Low Clouds (% Sky Obscured)

83
41
71
74
58
43
73
61
59
55
21
14
5
0
0
0
0
0
0
12
14
15
11
0

Medium Clouds (% Sky Obscured)

1
27
18
20
10
34
38
23
18
15
13
0
0
2
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
2
8
20
5
2
0
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 (%)

15
6
7
3
3
0
1
2
4
0
2
0
0
0
0
0
0
0
0
1
1
1
1
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)

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

Chance of Frost

Temperature (°C)

15
17
18
19
20
20
21
21
20
20
19
18
16
14
13
13
12
12
12
11
11
11
10
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
60
52
55
51
55
48
46
50
56
58
70
77
80
86
87
87
89
88
90
91
91
90
86

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024
1024
1025
1025
1025
1025
1025
1025
1025
1025
1024
1024
1024
1024

Ozone (du)

357
356
353
351
349
347
346
344
343
342
341
341
342
343
343
344
344
342
340
339
337
335
332
330

Monday 24

Waxing Gibbous 90%

19:32

03:01

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

Sun - Rise: 06:40, Set: 20:44, Transit: 13:41. Moon - Rise: 19:32, Set: 03:01. Civil Dark: 21:20 - 06:04. Nautical Dark: 22:06 - 05:19. Astro Dark: 22:59 - 04:27

Total Clouds (% Sky Obscured)

1
10
27
21
29
22
22
22
22
16
1
11
12
15
1
0
20
6
18
32
54
49
98
76

Low Clouds (% Sky Obscured)

0
7
22
18
14
14
15
13
14
10
0
3
0
0
0
0
0
0
0
0
0
0
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
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
1
1
6
1
0
0
0
0
1
8
12
15
1
0
20
6
11
17
45
49
98
76

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
0
0
1
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)

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

Chance of Frost

Temperature (°C)

14
17
18
20
21
22
22
23
23
23
22
20
18
17
16
15
15
14
14
13
13
13
13
13

Feels Like (°C)

16
18
19
20
21
21
22
22
21
21
21
20
17
15
13
15
13
12
12
11
10
10
12
10

Dew Point (°C)

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

Relative Humidity (%)

78
69
62
54
49
44
41
40
39
41
47
58
65
64
62
62
66
68
70
71
72
74
76
71

Pressure (mb)

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

Ozone (du)

329
328
326
324
322
322
321
321
321
322
322
321
319
318
317
316
314
313
313
312
312
312
312
313

Tuesday 25

Waxing Gibbous 95%

19:54

04:17

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: 06:42, Set: 20:42, Transit: 13:41. Moon - Rise: 19:54, Set: 04:17. Civil Dark: 21:18 - 06:06. Nautical Dark: 22:03 - 05:21. Astro Dark: 22:55 - 04:29

Total Clouds (% Sky Obscured)

71
70
58
67
65
75
86
100
100
100
89
76
79
71
74
77
86
89
93
94
96
91
86
87

Low Clouds (% Sky Obscured)

0
0
0
0
0
10
16
20
19
17
17
21
28
33
37
41
48
58
39
29
33
39
43
46

Medium Clouds (% Sky Obscured)

0
0
0
0
12
73
86
100
51
46
40
37
33
34
28
29
45
59
63
64
47
51
61
54

High Clouds (% Sky Obscured)

71
70
58
65
59
63
86
100
100
100
88
64
58
45
57
70
81
81
93
94
70
40
10
10

ISS Passover

Visibility (miles)

9
9
9
9
9
6
7
9
8
4
2
4
9
8
9
9
9
8
7
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
14
15
9
27
55
70
80
57
42
39
38
39
47
40
31
27
21
14
7
21

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0.6
0.8
0.3
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

11
13
14
14
15
15
15
14
13
12
11
10
10
11
11
11
10
8
7
7
6
6
6
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
8
8
7
9
13
15
15
16
16
17
17
16
16
15
15
15
15
15
15
15
15
16
16

Relative Humidity (%)

60
51
44
38
39
48
57
59
66
73
82
88
89
90
89
87
89
92
93
95
95
95
95
92

Pressure (mb)

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

Ozone (du)

313
312
312
311
311
312
314
316
318
320
324
324
319
315
314
311
311
310
307
307
308
307
308
310

Wednesday 26

Waxing Gibbous 98%

20:11

05:35

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: 06:43, Set: 20:40, Transit: 13:41. Moon - Rise: 20:11, Set: 05:35. Civil Dark: 21:16 - 06:07. Nautical Dark: 22:01 - 05:23. Astro Dark: 22:52 - 04:32

Total Clouds (% Sky Obscured)

88
89
87
84
81
63
61
100
100
100
100
84
70
57
61
64
68
79
89
100
90
84
79
88

Low Clouds (% Sky Obscured)

49
60
47
42
33
38
38
64
37
60
27
13
14
16
16
17
15
15
14
11
9
7
10
7

Medium Clouds (% Sky Obscured)

41
38
44
24
2
4
6
7
7
6
5
30
27
25
17
9
1
6
11
15
24
31
38
54

High Clouds (% Sky Obscured)

10
10
31
48
61
41
50
100
100
100
100
53
36
24
31
38
47
66
82
100
80
72
68
82

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
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
None
None
None

Precipitation Probability (%)

30
22
8
6
4
33
16
15
20
19
17
22
19
4
3
1
0
6
7
3
17
20
15
33

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)

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

Chance of Frost

Temperature (°C)

19
20
22
23
25
26
27
28
27
27
25
23
22
20
19
19
19
18
18
18
18
18
18
18

Feels Like (°C)

19
21
22
23
25
26
27
28
26
26
25
24
23
22
23
22
21
22
19
19
19
19
18
18

Dew Point (°C)

17
17
17
17
17
16
16
14
14
15
15
16
16
16
16
16
16
16
15
15
14
14
14
14

Relative Humidity (%)

89
82
73
67
60
53
50
42
44
47
53
61
67
75
82
84
85
86
82
80
77
77
77
77

Pressure (mb)

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

Ozone (du)

310
310
310
310
311
311
310
309
308
307
308
309
309
309
310
309
308
308
307
307
307
308
309
310

Thursday 27

Waxing Gibbous 100%

20:24

06:52

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: 06:45, Set: 20:38, Transit: 13:40. Moon - Rise: 20:24, Set: 06:52. Civil Dark: 21:13 - 06:09. Nautical Dark: 21:58 - 05:25. Astro Dark: 22:49 - 04:35

Total Clouds (% Sky Obscured)

95
100
100
100
100
100
100
100
97
95
93
91
87
83
79
75
73
80
91
100
100
100
100
100

Low Clouds (% Sky Obscured)

7
6
8
12
15
33
52
73
68
64
61
48
38
26
32
33
38
38
28
23
18
19
23
24

Medium Clouds (% Sky Obscured)

66
78
82
87
92
83
74
66
52
37
19
13
9
6
16
26
36
32
24
19
13
11
9
19

High Clouds (% Sky Obscured)

91
100
100
100
100
100
100
100
97
95
93
91
87
83
79
75
69
80
90
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

42
48
43
37
26
64
82
95
95
95
95
95
86
50
40
35
33
44
50
53
52
57
61
67

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
21
22
24
25
26
25
25
24
23
22
21
21
20
19
19
19
18
18
18
18
18
18
18

Feels Like (°C)

19
20
19
20
20
21
28
27
25
26
26
26
22
23
24
23
23
23
21
20
20
20
20
20

Dew Point (°C)

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

Relative Humidity (%)

76
76
75
65
57
49
53
56
59
65
73
80
81
84
86
89
90
93
93
93
95
95
95
93

Pressure (mb)

1011
1011
1011
1010
1010
1009
1009
1009
1008
1008
1008
1007
1007
1007
1007
1006
1006
1005
1005
1005
1004
1004
1004
1003

Ozone (du)

310
310
311
312
313
314
315
316
318
318
319
319
320
322
323
322
320
318
319
319
319
320
322
323

Friday 28

Full Moon 99%

20:36

08:10

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

Sun - Rise: 06:47, Set: 20:35, Transit: 13:40. Moon - Rise: 20:36, Set: 08:10. Civil Dark: 21:11 - 06:11. Nautical Dark: 21:56 - 05:27. Astro Dark: 22:46 - 04:37

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
98
97
97
98
98

Low Clouds (% Sky Obscured)

25
25
30
31
28
33
46
58
45
35
22
26
39
51
55
54
49

Medium Clouds (% Sky Obscured)

27
38
59
80
100
100
100
100
99
99
98
95
93
91
93
94
96

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
99
99
88
74
61
51
44
41

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

62
61
66
80
93
85
94
95
95
91
90
87
65
55
57
52
28

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
81
76
70
66
61
67
72
80
80
80
81
81
82
81
85
89

Pressure (mb)

1003
1003
1003
1003
1003
1003
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003
1003

Ozone (du)

324
325
326
327
328
329
331
333
335
336
337
339
339
339
339
340
340

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

Generated: 22/08/26 09:25:03. Forecast: 22/08/26 to 28/08/26. Timezone: UTC+2.00