Clear Outside v1.0 - International Weather Forecasts For Astronomers

Saturday 25

Waxing Gibbous 88%

19:33

02:00

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

Sun - Rise: 05:51, Set: 21:40, Transit: 13:46. Moon - Rise: 19:33, Set: 02:00. Civil Dark: 22:23 - 05:08. Nautical Dark: 23:23 - 04:08. Astro Dark: 01:10 - 02:29

Total Clouds (% Sky Obscured)

90
95
100
95
77
73
32
39
37
21
12
4
47
53
53
87
73
81
86
89
100
100
100
100

Low Clouds (% Sky Obscured)

15
10
17
19
17
9
3
35
26
21
12
4
0
0
0
0
0
0
0
6
4
0
16
49

Medium Clouds (% Sky Obscured)

27
0
15
22
21
24
6
5
18
0
0
0
0
0
28
21
18
18
51
28
36
42
70
99

High Clouds (% Sky Obscured)

71
95
84
28
55
55
22
0
0
0
0
0
47
53
53
87
48
55
66
84
100
100
96
80

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
1
4
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)

3
4
4
4
6
7
8
9
10
13
13
13
14
13
13
11
9
6
5
5
6
6
6
5

Chance of Frost

Temperature (°C)

14
14
14
15
18
20
22
24
25
26
27
27
26
26
25
24
23
21
20
18
18
18
18
18

Feels Like (°C)

12
13
13
14
17
18
20
23
25
25
25
25
24
24
23
23
21
19
18
17
17
17
18
18

Dew Point (°C)

9
9
10
10
10
10
10
11
11
11
10
9
9
9
9
8
6
7
8
9
11
14
16
16

Relative Humidity (%)

72
71
75
70
60
54
47
44
40
37
34
32
33
33
34
34
33
40
47
52
61
73
83
86

Pressure (mb)

1011
1011
1010
1010
1010
1010
1010
1009
1008
1008
1008
1007
1007
1007
1007
1006
1006
1006
1006
1006
1006
1005
1005
1005

Ozone (du)

327
328
329
330
331
332
334
337
338
335
333
334
332
330
330
331
329
330
328
327
327
326
326
324

Sunday 26

Waxing Gibbous 93%

20:23

02:56

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

Sun - Rise: 05:52, Set: 21:39, Transit: 13:46. Moon - Rise: 20:23, Set: 02:56. Civil Dark: 22:22 - 05:10. Nautical Dark: 23:21 - 04:10. Astro Dark: 01:02 - 02:37

Total Clouds (% Sky Obscured)

100
100
100
93
100
100
98
100
100
100
98
91
84
67
49
82
67
74
72
70
37
10
29
25

Low Clouds (% Sky Obscured)

24
67
49
66
98
54
57
73
89
87
87
75
72
59
22
63
39
42
39
32
14
2
14
10

Medium Clouds (% Sky Obscured)

100
100
100
75
95
100
97
99
100
100
54
31
26
21
22
41
29
48
31
33
18
7
17
19

High Clouds (% Sky Obscured)

86
51
44
17
40
22
0
1
0
2
2
0
1
0
0
1
0
1
0
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

15
15
13
17
23
13
26
24
24
41
39
53
56
66
47
59
54
14
11
35
23
20
7
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
18
18
18
18
18
18
18
18
18
18
19
19
20
20
22
20
20
19
18
17
18
17
17

Dew Point (°C)

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

Relative Humidity (%)

83
86
82
82
74
76
65
66
65
66
82
88
88
79
75
68
76
84
88
86
90
92
93
93

Pressure (mb)

1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1005
1006
1006
1007
1008
1008
1009
1009
1010

Ozone (du)

324
325
329
330
329
332
335
335
339
340
340
339
337
337
338
337
338
337
337
337
338
338
339
339

Monday 27

Waxing Gibbous 97%

21:01

04:03

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 OK
17 OK
18 OK
19 Good
20 Good
21 Good
22 OK
23 OK
00 Good
01 OK
02 OK
03 OK

Sun - Rise: 05:54, Set: 21:37, Transit: 13:46. Moon - Rise: 21:01, Set: 04:03. Civil Dark: 22:20 - 05:11. Nautical Dark: 23:19 - 04:13. Astro Dark: 00:55 - 02:43

Total Clouds (% Sky Obscured)

21
24
51
48
61
58
67
61
80
85
82
87
29
27
21
9
13
9
23
25
15
33
30
27

Low Clouds (% Sky Obscured)

11
3
29
34
61
52
56
51
69
78
75
84
18
17
13
6
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

13
14
21
6
0
0
8
7
29
29
34
24
1
0
0
1
10
6
15
16
9
21
20
17

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1

ISS Passover

Visibility (miles)

9
9
9
9
7
7
7
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
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 (%)

11
27
34
39
41
41
37
36
29
6
2
2
0
1
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
6
6
7
9
10
10
11
11
12
12
12
13
12
11
8
5
4
3
3
3
4
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
93
95
95
89
85
81
74
65
58
58
58
54
46
44
48
51
59
69
72
74
73
74
74

Pressure (mb)

1011
1011
1012
1013
1014
1014
1015
1016
1017
1017
1018
1018
1018
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020

Ozone (du)

339
339
339
338
338
338
338
338
338
338
338
338
339
337
336
334
333
332
330
329
329
328
328
327

Tuesday 28

Waxing Gibbous 100%

21:28

04:03

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

Sun - Rise: 05:55, Set: 21:36, Transit: 13:46. Moon - Rise: 21:28, Set: 04:03. Civil Dark: 22:18 - 05:13. Nautical Dark: 23:16 - 04:15. Astro Dark: 00:48 - 02:49

Total Clouds (% Sky Obscured)

25
24
25
21
26
28
30
30
26
27
45
31
37
55
40
61
68
68
71
55
18
2
2
1

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)

16
16
14
12
11
12
14
16
15
15
10
6
14
52
7
35
42
66
60
55
5
2
2
1

High Clouds (% Sky Obscured)

1
1
3
2
2
2
3
2
2
5
32
22
31
32
32
42
62
64
70
36
17
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
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
6
6
7
8
8
8
8
8
7
6
6
6
7
8
7
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

15
15
15
16
18
20
22
25
26
28
29
30
30
30
30
29
27
25
23
22
21
21
20
20

Feels Like (°C)

16
15
15
16
18
20
23
24
26
28
29
29
31
31
29
29
26
23
22
21
21
21
21
20

Dew Point (°C)

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

Relative Humidity (%)

74
75
74
69
58
49
43
38
34
31
30
29
28
29
29
32
44
59
64
64
63
63
59
55

Pressure (mb)

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

Ozone (du)

326
326
328
328
326
326
323
322
320
320
320
320
323
324
324
326
326
324
323
323
324
326
326
326

Wednesday 29

Full Moon 100%

21:48

05:17

04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good
11 OK
12 OK
13 OK
14 OK
15 OK
16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 OK
23 OK
00 OK
01 OK
02 OK
03 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 - 04:17. Astro Dark: 00:42 - 02:54

Total Clouds (% Sky Obscured)

0
0
0
1
0
0
1
2
9
7
7
13
31
41
55
77
33
32
34
31
29
26
27
28

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
0
0
0
0
0
0
0
0
0
5
9
14
12
10
8
11
8
4
2
2
0
7
14

High Clouds (% Sky Obscured)

0
0
0
0
0
0
1
1
6
6
1
2
13
27
45
62
6
8
14
15
15
19
23
21

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

Chance of Frost

Temperature (°C)

20
19
20
20
22
25
28
30
32
34
35
36
36
37
36
36
34
32
29
26
26
25
24
23

Feels Like (°C)

20
20
20
20
22
25
27
30
32
33
34
35
36
35
36
36
34
34
33
32
31
29
28
22

Dew Point (°C)

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

Relative Humidity (%)

56
57
57
54
44
35
29
25
21
18
17
15
13
12
12
13
16
19
23
28
30
33
36
37

Pressure (mb)

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

Ozone (du)

326
326
327
328
331
330
326
325
324
326
327
326
325
326
326
325
324
322
320
319
318
317
316
316

Thursday 30

Waning Gibbous 98%

22:03

06:34

04 OK
05 OK
06 OK
07 Good
08 OK
09 OK
10 OK
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 OK
02 OK
03 OK

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 - 04:20. Astro Dark: 00:37 - 02:59

Total Clouds (% Sky Obscured)

32
25
21
12
22
32
41
42
43
43
51
63
81
83
85
84
75
65
55
52
48
45
37
36

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)

21
14
8
2
5
7
9
8
9
9
8
7
4
5
5
5
6
8
13
12
11
10
10
8

High Clouds (% Sky Obscured)

25
18
18
10
17
24
28
26
22
14
38
63
81
83
85
84
67
52
36
40
43
34
28
21

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
2
2
1
9
12

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

Chance of Frost

Temperature (°C)

23
22
23
23
24
27
29
32
33
34
35
35
35
34
33
32
31
29
26
23
22
22
21
21

Feels Like (°C)

23
22
22
21
21
26
26
27
27
29
30
34
34
33
34
34
35
28
27
27
26
25
25
21

Dew Point (°C)

8
8
8
7
7
8
8
8
8
9
9
10
11
12
14
16
18
18
18
18
18
19
19
18

Relative Humidity (%)

39
41
38
35
33
29
25
22
21
21
20
22
23
25
30
37
44
52
62
74
78
83
88
86

Pressure (mb)

1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014

Ozone (du)

315
315
314
313
313
313
312
312
312
311
310
310
311
311
311
311
311
311
311
311
307
304
301
301

Friday 31

Waning Gibbous 94%

22:16

07:50

04 OK
05 OK
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 Bad
01 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 - 04:22. Astro Dark: 00:31 - 03:04

Total Clouds (% Sky Obscured)

31
39
51
60
70
70
60
62
63
60
62
66
71
62
52
43
47
50
54
65
78
90

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

Medium Clouds (% Sky Obscured)

8
8
9
10
15
15
24
26
33
35
36
33
29
27
24
20
29
39
49
59
68
77

High Clouds (% Sky Obscured)

15
28
45
55
50
50
50
57
63
60
62
66
71
58
35
19
16
12
5
19
34
51

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

Fog (%)

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

Precipitation Probability (%)

13
12
11
6
10
9
3
2
1
1
8
9
3
8
11
12
20
26
30
27
23
12

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
21
22
23
25
28
30
30
30
30
30
31
32
30
29
28
27
26
25
24
23

Feels Like (°C)

22
22
21
21
21
25
25
24
23
23
21
31
30
29
31
32
33
25
26
26
26
26

Dew Point (°C)

18
17
16
16
16
14
13
11
8
5
2
1
0
0
2
5
8
8
9
9
10
11

Relative Humidity (%)

84
82
75
69
63
49
38
30
25
20
17
15
14
13
16
21
27
30
34
37
40
44

Pressure (mb)

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

Ozone (du)

300
299
299
298
298
298
298
299
299
299
298
298
298
298
297
296
296
294
293
292
293
294

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

Generated: 25/07/26 04:39:00. Forecast: 25/07/26 to 31/07/26. Timezone: UTC+2.00