Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 28

Waxing Gibbous 100%

21:28

No Set

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

Sun - Rise: 05:55, Set: 21:36, Transit: 13:46. Moon - Rise: 21:28, Set: No Set. Civil Dark: 22:18 - 05:13. Nautical Dark: 23:16 - 04:17. Astro Dark: 00:48 - 02:49

Total Clouds (% Sky Obscured)

23
32
62
26
17
22
8
9
56
84
85
100
99
92
94
89
90
88
99
100
75
47
36
32

Low Clouds (% Sky Obscured)

23
22
21
15
0
0
0
0
13
18
0
2
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
13
5
0
6
12
2
3
13
74
85
97
89
68
60
47
71
88
56
77
64
33
25
22

High Clouds (% Sky Obscured)

23
32
53
9
10
10
5
4
38
8
13
80
55
62
65
71
31
51
97
100
26
3
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 (%)

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

Chance of Frost

Temperature (°C)

15
15
15
17
19
21
23
25
27
27
28
28
28
28
28
27
25
22
21
21
20
20
19
19

Feels Like (°C)

15
15
14
16
19
21
23
24
26
26
26
27
27
27
27
26
24
21
21
20
20
19
20
20

Dew Point (°C)

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

Relative Humidity (%)

83
84
79
69
60
52
44
40
38
36
35
35
34
35
36
40
49
56
62
65
67
66
61
57

Pressure (mb)

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

Ozone (du)

330
330
330
329
328
327
325
323
322
321
321
319
319
320
321
320
320
322
322
321
322
322
322
323

Wednesday 29

Full Moon 100%

21:48

05:17

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

Sun - Rise: 05:57, Set: 21:34, Transit: 13:46. Moon - Rise: 21:48, Set: 05:17. Civil Dark: 22:16 - 05:15. Nautical Dark: 23:14 - 04:20. Astro Dark: 00:42 - 02:54

Total Clouds (% Sky Obscured)

36
16
5
10
6
5
43
9
0
0
0
8
21
15
8
7
33
3
21
0
2
5
32
37

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
6
14
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

11
9
3
7
3
3
0
0
0
0
0
0
0
9
5
4
23
1
0
0
0
5
29
28

High Clouds (% Sky Obscured)

25
5
2
2
3
2
38
9
0
0
0
0
0
0
0
1
0
1
21
0
2
0
2
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
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)

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

Chance of Frost

Temperature (°C)

18
18
18
20
23
25
28
30
31
33
33
34
34
34
33
32
29
26
25
23
22
21
20
19

Feels Like (°C)

18
17
18
20
22
25
28
28
31
32
33
33
33
34
34
32
29
27
25
24
22
20
20
19

Dew Point (°C)

10
10
9
9
7
7
7
6
5
5
5
5
5
6
6
9
12
12
10
9
10
9
10
11

Relative Humidity (%)

57
58
54
46
37
31
25
21
19
17
16
16
16
17
18
24
36
41
40
41
45
46
53
56

Pressure (mb)

1016
1016
1016
1016
1016
1016
1015
1015
1014
1014
1013
1013
1012
1012
1012
1012
1011
1012
1013
1012
1012
1012
1012
1012

Ozone (du)

324
324
325
326
327
327
325
325
325
323
321
320
321
323
324
323
322
322
323
324
321
319
316
315

Thursday 30

Waning Gibbous 98%

22:03

06:34

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

Sun - Rise: 05:58, Set: 21:33, Transit: 13:45. Moon - Rise: 22:03, Set: 06:34. Civil Dark: 22:14 - 05:17. Nautical Dark: 23:11 - 04:22. Astro Dark: 00:37 - 02:59

Total Clouds (% Sky Obscured)

39
35
89
78
72
72
76
72
100
100
100
100
58
44
20
81
75
93
91
100
100
87
76
66

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
17
20
18
19
20
24
15
8
17
0
0
0
10
12
15
17
22

Medium Clouds (% Sky Obscured)

26
24
24
14
13
0
0
0
0
49
82
36
13
2
2
0
0
0
22
0
0
9
5
7

High Clouds (% Sky Obscured)

0
0
89
78
72
72
76
72
100
100
100
100
15
19
8
68
75
89
87
100
100
73
43
15

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
0
0
0
0
0
1
2
7
11
10

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

Chance of Frost

Temperature (°C)

19
19
19
20
22
24
26
27
28
28
28
27
27
26
25
25
23
21
19
18
18
18
17
17

Feels Like (°C)

19
19
20
20
22
24
26
27
27
25
25
24
24
24
23
24
23
20
20
20
18
18
17
17

Dew Point (°C)

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

Relative Humidity (%)

61
67
72
66
51
41
37
34
33
34
35
38
41
41
38
42
56
68
75
76
76
77
78
82

Pressure (mb)

1012
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

316
319
317
318
317
318
317
317
317
317
318
321
323
327
323
324
326
326
327
325
323
324
325
325

Friday 31

Waning Gibbous 94%

22:16

07:50

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

Sun - Rise: 06:00, Set: 21:31, Transit: 13:45. Moon - Rise: 22:16, Set: 07:50. Civil Dark: 22:12 - 05:18. Nautical Dark: 23:09 - 04:24. Astro Dark: 00:31 - 03:04

Total Clouds (% Sky Obscured)

74
82
90
78
80
92
51
35
22
26
28
29
27
24
21
31
17
25
50
75
96
81
99
100

Low Clouds (% Sky Obscured)

25
30
38
30
27
24
27
27
22
26
26
27
23
18
14
10
5
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

10
13
14
47
17
16
9
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

15
15
15
18
44
69
33
15
0
0
0
0
0
1
2
19
10
20
47
73
96
81
99
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 (%)

19
23
21
23
18
8
7
4
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)

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

Chance of Frost

Temperature (°C)

17
17
18
19
20
22
24
25
26
26
25
25
25
24
22
21
19
17
16
15
14
13
13
12

Feels Like (°C)

17
17
18
19
21
23
23
25
25
23
23
24
23
22
20
19
17
16
14
13
12
11
13
11

Dew Point (°C)

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

Relative Humidity (%)

82
82
78
70
59
50
42
34
34
40
46
44
41
38
39
46
52
62
66
71
76
77
80
81

Pressure (mb)

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

Ozone (du)

326
329
335
336
336
337
341
343
343
342
344
344
342
337
334
331
329
329
329
328
327
326
326
326

Saturday 1

Waning Gibbous 88%

22:27

09:07

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

Sun - Rise: 06:01, Set: 21:29, Transit: 13:45. Moon - Rise: 22:27, Set: 09:07. Civil Dark: 22:10 - 05:20. Nautical Dark: 23:06 - 04:27. Astro Dark: 00:26 - 03:09

Total Clouds (% Sky Obscured)

76
81
82
81
81
89
78
53
17
44
51
56
55
49
37
33
31
33
35
38
40
39
39
43

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
6
12
19
21
23
26
8
4
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
2
2
0
0
0
0
0
0
0
0
0
0
0
1
1

High Clouds (% Sky Obscured)

76
81
82
81
81
89
75
50
14
43
40
40
40
29
13
16
15
20
22
23
30
34
29
34

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
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)

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

Chance of Frost

Temperature (°C)

12
12
13
14
17
19
22
23
25
27
28
28
28
27
26
24
21
19
17
16
16
15
15
14

Feels Like (°C)

11
13
14
15
17
19
20
21
23
26
26
26
26
23
22
21
20
19
18
18
17
16
12
12

Dew Point (°C)

9
10
9
8
6
4
3
2
1
1
0
-1
-1
1
4
7
7
9
10
9
8
7
7
7

Relative Humidity (%)

81
84
79
63
49
36
29
24
21
18
16
15
15
17
24
33
40
51
63
62
59
58
58
59

Pressure (mb)

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

Ozone (du)

326
327
327
327
327
327
326
324
322
321
321
322
322
324
325
326
326
326
327
326
325
324
324
324

Sunday 2

Waning Gibbous 80%

22:37

10:23

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

Sun - Rise: 06:03, Set: 21:28, Transit: 13:45. Moon - Rise: 22:37, Set: 10:23. Civil Dark: 22:09 - 05:22. Nautical Dark: 23:04 - 04:29. Astro Dark: 00:22 - 03:13

Total Clouds (% Sky Obscured)

44
54
60
55
49
39
53
68
85
75
58
33
24
17
14
10
6
2
22
38
56
55
62
64

Low 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

Medium Clouds (% Sky Obscured)

7
13
20
24
27
32
26
17
10
6
3
0
0
1
1
1
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

34
54
60
50
29
9
31
59
85
67
36
5
0
4
4
4
2
1
22
38
56
55
61
64

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
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)

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

Chance of Frost

Temperature (°C)

14
15
16
17
19
22
24
25
26
27
27
27
28
26
25
23
22
20
18
17
17
16
15
15

Feels Like (°C)

12
12
12
11
15
16
17
18
19
20
25
24
24
24
25
24
19
18
18
18
18
18
13
14

Dew Point (°C)

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

Relative Humidity (%)

58
58
58
59
48
39
31
28
25
23
23
24
25
29
34
39
44
49
53
59
65
73
78
82

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018

Ozone (du)

324
324
325
326
326
325
325
324
323
322
323
324
326
326
326
327
326
326
326
326
325
325
324
323

Monday 3

Waning Gibbous 80%

22:49

11:41

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

Sun - Rise: 06:05, Set: 21:26, Transit: 13:45. Moon - Rise: 22:49, Set: 11:41. Civil Dark: 22:07 - 05:24. Nautical Dark: 23:01 - 04:32. Astro Dark: 00:17 - 03:18

Total Clouds (% Sky Obscured)

61
62
60
48
27
5
28
51
71
63
53
41
42
44
45
63
81
99
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
3
5
3
2
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
11
22
33
33
33
28
30
32
33
48
59
74

High Clouds (% Sky Obscured)

61
62
55
35
20
5
27
51
71
63
53
41
42
44
39
55
75
99
99
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

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 (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
4
8
10
11

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)

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

Chance of Frost

Temperature (°C)

14
15
15
16
18
20
22
24
25
27
27
27
28
27
26
25
24
22
21
20
19

Feels Like (°C)

15
14
13
13
17
17
17
18
18
19
26
25
24
25
26
27
22
21
20
20
19

Dew Point (°C)

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

Relative Humidity (%)

89
83
78
74
59
47
37
31
27
23
22
21
20
24
28
33
37
41
46
48
51

Pressure (mb)

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

Ozone (du)

322
323
324
326
326
327
328
327
326
325
325
324
323
322
321
320
320
319
319
319
320

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

Generated: 28/07/26 05:05:08. Forecast: 28/07/26 to 03/08/26. Timezone: UTC+2.00