Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waning Gibbous 98%

22:03

06:34

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

Sun - Rise: N/A, Set: 21:33, Transit: 13:45. Moon - Rise: 22:03, Set: 06:34. Civil Dark: 22:14 - 05:18. Nautical Dark: 23:11 - 04:22. Astro Dark: 00:37 - 02:59

Total Clouds (% Sky Obscured)

25
30
72
100
100
100
100
100
100
100
100
76
38
5
4
45
71
67
93
95
100
99
98
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
4
4
2
8
21
32
26
4
2
0
0
0
12
17
17
14
11
7

Medium Clouds (% Sky Obscured)

25
20
15
8
0
0
0
59
94
75
67
48
0
0
0
0
0
0
1
0
3
0
31
56

High Clouds (% Sky Obscured)

1
30
72
100
100
100
100
100
100
100
100
25
18
0
2
44
68
67
85
87
100
96
94
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
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
8
8
8
9
10
11
13
12
11
9
8
9
7
6
6
6
5
4
4
5
5
5

Chance of Frost

Temperature (°C)

19
19
21
23
25
27
28
29
28
27
27
26
26
26
25
23
21
19
19
18
17
17
17
16

Feels Like (°C)

19
20
20
23
24
25
26
26
24
24
24
24
25
26
25
24
20
19
19
18
17
17
16
17

Dew Point (°C)

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

Relative Humidity (%)

59
60
57
52
45
38
34
33
33
37
43
47
44
42
45
56
67
75
81
85
86
86
87
89

Pressure (mb)

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

Ozone (du)

319
319
318
316
315
316
315
315
315
316
319
322
327
324
324
321
321
320
321
324
327
327
329
331

Friday 31

Waning Gibbous 94%

22:16

07:50

06 Bad
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 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
01 Bad
02 OK
03 Bad
04 Bad
05 Bad

Sun - Rise: 06:00, Set: 21:31, Transit: 13:45. Moon - Rise: 22:16, Set: 07:50. Civil Dark: 22:12 - 05:20. Nautical Dark: 23:09 - 04:24. Astro Dark: 00:31 - 03:04

Total Clouds (% Sky Obscured)

100
100
99
96
86
64
90
66
73
69
76
51
53
60
61
76
78
59
45
59
32
100
100
100

Low Clouds (% Sky Obscured)

12
20
26
32
31
11
22
47
67
69
75
31
15
2
44
64
78
43
36
59
23
0
2
0

Medium Clouds (% Sky Obscured)

99
95
97
87
27
19
36
16
7
7
17
24
26
16
0
0
0
3
0
1
14
13
2
3

High Clouds (% Sky Obscured)

100
100
65
47
46
35
22
0
22
0
0
2
6
45
45
50
50
23
3
15
21
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
1
1
1
0
0
10
29
41
18
5
17
3
2
1
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
5
6
6
5
2
3
5
10
9
9
10
11
11
10
9
9
8
7
7
6
5
5

Chance of Frost

Temperature (°C)

16
17
18
19
21
23
25
26
27
25
25
25
25
24
23
21
19
19
18
17
16
15
14
14

Feels Like (°C)

16
17
18
19
21
23
25
27
29
24
24
25
25
24
21
19
17
16
16
16
15
13
13
13

Dew Point (°C)

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

Relative Humidity (%)

87
85
78
72
65
57
50
43
41
44
58
54
50
51
54
59
60
58
63
68
66
69
73
75

Pressure (mb)

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

Ozone (du)

331
332
332
332
334
334
338
341
342
339
335
337
335
333
334
333
334
336
335
332
333
333
333
334

Saturday 1

Waning Gibbous 88%

22:27

09:07

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

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

Total Clouds (% Sky Obscured)

100
80
38
40
15
0
51
60
50
63
38
33
13
12
39
50
60
57
54
52
47
50
49
65

Low Clouds (% Sky Obscured)

3
4
8
12
9
0
4
9
10
14
7
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

5
33
38
40
0
0
28
32
29
34
22
21
8
8
5
2
0
4
7
10
6
3
0
0

High Clouds (% Sky Obscured)

100
70
16
13
0
0
0
0
0
0
0
0
1
1
31
39
51
40
30
19
25
32
42
59

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)

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

Chance of Frost

Temperature (°C)

14
14
16
18
20
22
23
24
25
25
25
25
25
23
22
20
18
16
16
15
14
14
13
13

Feels Like (°C)

13
13
15
17
19
23
24
24
23
23
22
23
22
22
21
18
16
14
14
13
12
12
12
11

Dew Point (°C)

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

Relative Humidity (%)

74
71
65
58
51
39
33
28
24
24
25
29
33
39
45
53
57
60
61
66
75
79
79
77

Pressure (mb)

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

Ozone (du)

336
338
341
347
353
358
356
352
352
354
348
342
337
333
332
330
329
329
328
328
326
325
325
325

Sunday 2

Waning Gibbous 80%

22:37

10:23

06 Bad
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 Bad
20 Bad
21 OK
22 OK
23 Bad
00 OK
01 OK
02 OK
03 OK
04 Good
05 Good

Sun - Rise: 06:03, Set: 21:28, Transit: 13:45. Moon - Rise: 22:37, Set: 10:23. Civil Dark: 22:09 - 05:24. Nautical Dark: 23:04 - 04:29. Astro Dark: 00:22 - 03:13

Total Clouds (% Sky Obscured)

62
96
97
98
100
97
94
90
72
73
86
84
79
75
67
38
30
50
46
46
37
28
4
13

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)

0
3
74
84
83
94
94
89
35
34
37
31
35
35
30
27
21
21
22
21
20
17
4
11

High Clouds (% Sky Obscured)

62
95
97
98
99
73
48
16
2
2
18
20
20
20
20
1
1
10
10
10
10
10
1
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
1
2
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
5
6
6
7
7
8
8
9
9
10
11
11
12
12
12
11
10
9
9
8
9
9

Chance of Frost

Temperature (°C)

13
14
16
18
20
23
24
25
26
27
27
27
27
25
24
22
21
20
19
18
17
17
16
16

Feels Like (°C)

12
13
14
16
18
20
21
23
23
25
26
24
23
21
20
18
18
17
15
15
14
14
14
14

Dew Point (°C)

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

Relative Humidity (%)

75
68
56
45
38
32
28
25
23
21
20
20
23
28
38
46
46
44
47
51
53
56
56
56

Pressure (mb)

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

Ozone (du)

325
325
324
323
320
319
320
321
321
320
319
318
317
317
317
316
315
315
314
314
315
318
321
323

Monday 3

Waning Gibbous 71%

22:49

11:41

06 OK
07 OK
08 OK
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

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

Total Clouds (% Sky Obscured)

22
26
39
47
60
65
71
88
92
96
100
100
100
100
97
94
93
94
95
97
98
99
100
94

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
4
7
10
6
3
0
7
15
22
22
22
17
9

Medium Clouds (% Sky Obscured)

17
23
31
39
49
41
32
23
29
29
30
43
51
53
56
62
75
73
70
63
57
50
45
60

High Clouds (% Sky Obscured)

3
1
21
40
60
60
67
79
88
94
100
100
100
100
96
90
85
85
87
90
93
97
100
73

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
4
5
4
18
24
29
43
33
19
22
26
29
49
63
75
77
80
84
80
70
51
47

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.5
0.5
0.5
0.5
0.5
0.3
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
17
20
22
25
27
29
30
31
31
31
31
30
29
27
24
22
21
20
19
19
18
18

Feels Like (°C)

15
14
15
18
20
22
24
26
27
27
28
28
28
27
28
24
24
24
23
22
21
15
15
16

Dew Point (°C)

8
8
7
7
7
7
7
6
6
7
7
8
8
9
10
12
14
16
17
17
18
17
17
17

Relative Humidity (%)

57
56
50
43
37
32
27
24
21
22
22
22
24
26
29
39
52
70
76
82
91
92
93
95

Pressure (mb)

1013
1013
1012
1012
1012
1012
1011
1011
1010
1009
1009
1008
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

323
323
320
321
321
318
316
316
317
316
315
314
313
313
312
312
311
310
310
310
310
311
312
313

Tuesday 4

Waning Gibbous 68%

23:02

13:02

06 Bad
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 Bad
20 Bad
21 OK
22 OK
23 OK
00 OK
01 Good
02 OK
03 OK
04 Bad
05 Bad

Sun - Rise: 06:06, Set: 21:24, Transit: 13:45. Moon - Rise: 23:02, Set: 13:02. Civil Dark: 22:05 - 05:27. Nautical Dark: 22:59 - 04:34. Astro Dark: 00:13 - 03:22

Total Clouds (% Sky Obscured)

93
89
93
90
91
85
78
73
77
82
88
77
62
49
42
34
25
30
16
11
9
11
18
30

Low Clouds (% Sky Obscured)

8
9
7
6
7
6
5
8
10
15
25
15
14
10
9
9
8
8
13
11
9
11
14
19

Medium Clouds (% Sky Obscured)

73
85
71
59
45
42
41
37
50
65
76
51
32
15
10
5
0
0
0
0
5
11
18
24

High Clouds (% Sky Obscured)

57
40
43
37
48
36
20
4
14
25
32
24
15
9
8
4
0
0
0
0
0
1
1
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
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 (%)

38
16
15
11
1
4
4
0
12
25
34
42
40
29
16
6
1
3
4
4
16
27
36
39

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
7
6
9
13
14
15
16
16
17
18
16
14
13
11
10
8
8
9
8
8
8
9

Chance of Frost

Temperature (°C)

18
19
19
21
23
25
26
28
29
28
27
26
25
25
24
23
21
20
19
19
18
18
18
18

Feels Like (°C)

16
16
17
19
21
21
22
23
23
30
27
25
26
26
26
21
22
22
21
20
20
19
19
20

Dew Point (°C)

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

Relative Humidity (%)

95
93
92
76
63
53
44
36
30
34
39
43
46
49
52
61
71
84
85
86
88
90
93
96

Pressure (mb)

1007
1007
1007
1007
1007
1007
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008
1009

Ozone (du)

315
317
319
321
324
326
327
329
330
329
328
328
330
332
334
334
334
334
335
335
335
333
331
330

Wednesday 5

Waning Gibbous 60%

23:19

14:26

Sun - Rise: 06:08, Set: 21:22, Transit: 13:45. Moon - Rise: 23:19, Set: 14:26. Civil Dark: 22:03 - 05:29. Nautical Dark: 22:56 - 04:36. Astro Dark: 00:08 - 03:26

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: 30/07/26 05:16:11. Forecast: 30/07/26 to 05/08/26. Timezone: UTC+2.00