Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 26

Waxing Gibbous 93%

20:26

02:58

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
14 Bad
15 OK
16 OK

Sun - Rise: 05:56, Set: 21:42, Transit: 13:48. Moon - Rise: 20:26, Set: 02:58. Civil Dark: 22:24 - 05:13. Nautical Dark: 23:24 - 04:14. Astro Dark: 01:07 - 02:37

Total Clouds (% Sky Obscured)

89
87
95
99
95
89
65
83
80
92
86
60
61
77
92
94
75
96
89
79
81
50
26
18

Low Clouds (% Sky Obscured)

51
65
76
63
76
80
49
74
64
83
74
42
50
68
78
87
65
87
74
68
71
45
17
13

Medium Clouds (% Sky Obscured)

20
29
38
23
30
23
18
19
22
25
23
23
18
15
20
17
12
21
21
15
13
3
3
0

High Clouds (% Sky Obscured)

0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
8
5
9
9
7
6
9
8
9
9
9
7
7
5
5
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
Light Rain
Very Light Rain
None
None
Light Rain
None
None
None
None
None
None
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

7
1
0
46
43
19
29
51
35
25
34
23
24
39
49
55
54
44
35
31
24
4
1
0

Precipitation Amount (mm)

0
0
0
0.4
0.3
0
0
0.4
0
0
0
0
0
0
0.2
0.4
0.3
0.2
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
16
15
12
9
9
9
9
10
11
9
8
7
5
6
8
9
10
10
11
13
13
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
58
58
61
67
73
73
77
73
73
79
87
90
93
93
88
85
83
82
75
66
63
59
50

Pressure (mb)

1003
1004
1004
1004
1005
1006
1006
1007
1008
1008
1009
1010
1010
1011
1012
1013
1013
1014
1015
1015
1016
1017
1017
1017

Ozone (du)

340
338
338
338
337
338
340
341
343
344
345
345
343
342
343
342
340
339
340
341
342
342
342
342

Monday 27

Waxing Gibbous 97%

21:04

04:05

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

Sun - Rise: 05:57, Set: 21:40, Transit: 13:48. Moon - Rise: 21:04, Set: 04:05. Civil Dark: 22:23 - 05:15. Nautical Dark: 23:22 - 04:17. Astro Dark: 00:59 - 02:44

Total Clouds (% Sky Obscured)

39
34
42
43
48
40
67
91
83
79
86
84
91
92
78
69
59
41
44
23
23
11
58
57

Low Clouds (% Sky Obscured)

15
17
21
21
24
20
51
74
19
16
19
27
39
39
35
25
38
17
16
13
0
0
0
0

Medium Clouds (% Sky Obscured)

18
10
15
11
17
18
18
22
19
16
15
17
26
25
25
25
25
15
5
4
14
3
14
28

High Clouds (% Sky Obscured)

0
0
0
2
2
2
5
5
45
45
52
43
48
90
70
28
2
5
28
7
8
7
53
52

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
1
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)

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

Chance of Frost

Temperature (°C)

21
21
21
20
19
18
17
18
17
17
17
17
17
16
17
19
21
23
24
26
27
27
27
27

Feels Like (°C)

20
21
21
21
21
20
19
18
18
18
18
17
18
17
18
21
23
25
25
27
27
26
27
27

Dew Point (°C)

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

Relative Humidity (%)

50
51
51
54
64
73
79
81
82
85
90
92
93
93
90
81
67
53
44
40
39
38
38
39

Pressure (mb)

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

Ozone (du)

341
341
340
339
337
336
336
334
333
332
331
331
331
330
330
329
329
328
327
325
324
323
322
320

Tuesday 28

Waxing Gibbous 100%

21:31

05:19

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

Sun - Rise: 05:59, Set: 21:39, Transit: 13:48. Moon - Rise: 21:31, Set: 05:19. Civil Dark: 22:21 - 05:17. Nautical Dark: 23:19 - 04:19. Astro Dark: 00:52 - 02:50

Total Clouds (% Sky Obscured)

78
79
92
66
87
67
84
73
47
37
77
69
47
61
60
52
50
24
41
80
2
25
35
41

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
2
4
4

Medium Clouds (% Sky Obscured)

28
46
85
56
76
67
84
49
47
37
35
43
47
56
31
31
30
10
2
0
0
0
0
0

High Clouds (% Sky Obscured)

76
59
49
8
13
31
61
22
11
13
20
12
0
0
0
0
1
12
40
79
1
18
20
20

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
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)

7
6
4
3
4
5
5
5
5
5
6
5
5
5
5
6
7
7
6
7
7
8
7
5

Chance of Frost

Temperature (°C)

27
27
27
26
24
23
22
21
21
20
20
20
19
19
20
22
24
27
30
32
33
34
35
35

Feels Like (°C)

28
27
27
27
26
23
21
20
20
20
19
19
20
19
20
23
24
26
30
32
33
33
33
34

Dew Point (°C)

12
12
12
12
14
13
13
13
13
13
12
12
12
12
11
11
10
9
8
8
8
8
7
7

Relative Humidity (%)

38
39
41
42
51
55
58
60
62
62
60
61
62
61
58
50
39
32
26
23
21
19
18
17

Pressure (mb)

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

Ozone (du)

321
321
322
322
321
321
319
319
319
320
319
319
319
320
321
323
324
325
323
323
321
321
321
320

Wednesday 29

Full Moon 100%

21:51

06:36

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

Sun - Rise: 06:01, Set: 21:37, Transit: 13:48. Moon - Rise: 21:51, Set: 06:36. Civil Dark: 22:19 - 05:19. Nautical Dark: 23:17 - 04:22. Astro Dark: 00:46 - 02:55

Total Clouds (% Sky Obscured)

40
39
35
18
4
31
13
21
34
42
60
54
83
79
82
87
94
100
100
100
100
100
88
100

Low Clouds (% Sky Obscured)

3
1
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)

1
1
1
1
3
31
7
9
18
23
47
19
19
14
15
9
5
4
7
27
40
33
21
9

High Clouds (% Sky Obscured)

15
15
18
8
1
0
5
9
13
11
6
2
33
32
35
54
77
100
100
100
100
100
88
99

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
1
1
1
2
2
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
3
3
1
4
7
10
11
10
9
8
10
10
9
9
9
11
12
11
12
12
12
12
12

Chance of Frost

Temperature (°C)

36
36
35
34
31
29
28
28
27
26
25
25
25
23
22
23
25
26
26
27
27
27
27
27

Feels Like (°C)

35
35
35
35
32
28
26
26
25
24
24
22
22
21
21
22
22
23
24
24
24
24
24
25

Dew Point (°C)

7
6
6
9
8
7
7
8
8
7
7
7
5
9
15
14
12
13
13
13
12
12
12
11

Relative Humidity (%)

16
16
15
20
23
25
26
28
29
29
31
30
28
41
61
54
46
44
43
41
39
39
38
36

Pressure (mb)

1013
1012
1012
1012
1011
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1010
1010
1010
1011
1011
1012
1012
1013
1013

Ozone (du)

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

Thursday 30

Waning Gibbous 98%

22:06

07:53

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
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:02, Set: 21:35, Transit: 13:48. Moon - Rise: 22:06, Set: 07:53. Civil Dark: 22:17 - 05:21. Nautical Dark: 23:14 - 04:24. Astro Dark: 00:41 - 03:01

Total Clouds (% Sky Obscured)

100
100
100
100
91
71
100
100
60
55
100
65
100
100
100
82
81
81
86
90
94
86
78
72

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
4
7
11
14
17
21
21
22
22
15
13
10
12
12
12
18
23
28

Medium Clouds (% Sky Obscured)

6
3
0
0
0
0
13
26
39
43
37
41
40
94
91
81
81
81
85
83
80
70
66
62

High Clouds (% Sky Obscured)

99
100
100
100
91
71
100
100
54
50
100
65
100
100
100
30
30
39
55
65
75
69
61
55

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
1
2
0
0
0
0
0
0
2
3
1
2
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

24
24
23
22
22
22
21
20
19
21
21
19
19
19
20
19
19
20
21
21
22
22
23
22

Dew Point (°C)

10
10
10
11
13
15
15
16
16
16
17
17
16
16
15
12
11
10
9
9
10
11
11
11

Relative Humidity (%)

36
35
37
41
54
68
72
76
81
85
88
89
89
86
75
58
51
44
38
39
39
40
43
46

Pressure (mb)

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

Ozone (du)

317
318
318
320
320
319
319
320
322
325
325
324
325
327
327
329
330
331
332
331
331
331
331
332

Friday 31

Waning Gibbous 94%

22:18

09:09

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

Sun - Rise: 06:04, Set: 21:34, Transit: 13:48. Moon - Rise: 22:18, Set: 09:09. Civil Dark: 22:15 - 05:22. Nautical Dark: 23:12 - 04:26. Astro Dark: 00:35 - 03:05

Total Clouds (% Sky Obscured)

83
90
98
80
59
45
50
50
50
51
47
47
55
59
64
57
48
40
45
50
55
59
59
55

Low Clouds (% Sky Obscured)

25
21
17
11
6
0
0
0
0
0
1
1
5
8
11
13
12
9
9
9
9
8
8
6

Medium Clouds (% Sky Obscured)

54
41
24
21
20
20
30
35
40
37
33
30
20
12
6
12
19
26
30
33
37
39
41
46

High Clouds (% Sky Obscured)

69
82
93
80
59
45
50
50
50
50
27
0
2
3
5
13
11
11
20
27
44
41
46
42

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)

9
9
8
7
6
5
4
2
2
4
4
5
5
5
6
6
6
7
9
7
9
12
11
10

Chance of Frost

Temperature (°C)

22
22
21
21
19
18
17
16
16
16
15
15
15
15
16
17
19
21
23
23
24
24
24
24

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
49
48
49
55
64
74
74
74
75
77
79
79
73
67
63
51
42
34
38
43
47
46
44

Pressure (mb)

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

Ozone (du)

332
336
339
343
345
347
350
347
345
342
340
337
335
333
331
330
328
327
326
324
323
321
321
321

Saturday 1

Waning Gibbous 88%

22:29

10:26

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 OK
11 OK
12 OK
13 OK

Sun - Rise: 06:05, Set: 21:32, Transit: 13:48. Moon - Rise: 22:29, Set: 10:26. Civil Dark: 22:13 - 05:24. Nautical Dark: 23:09 - 04:29. Astro Dark: 00:30 - 03:10

Total Clouds (% Sky Obscured)

56
58
55
55
55
55
62
70
77
83
88
94
80
67
53
51
47
44
42
40
41

Low Clouds (% Sky Obscured)

4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
9
18
27
18
9
0

Medium Clouds (% Sky Obscured)

55
58
55
55
55
48
61
70
77
83
88
94
73
52
24
24
20
16
14
9
8

High Clouds (% Sky Obscured)

48
58
55
55
55
55
61
52
49
48
51
54
43
34
25
18
11
5
8
12
16

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
4
5
5
6
6
1
6
4
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

25
24
23
22
21
20
19
18
17
17
17
17
16
17
17
18
19
21
23
25
26

Feels Like (°C)

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

Dew Point (°C)

11
11
12
12
13
13
13
13
13
13
13
13
13
13
12
12
10
8
7
6
6

Relative Humidity (%)

43
46
49
53
58
62
69
72
73
76
78
79
82
78
73
71
55
43
35
30
27

Pressure (mb)

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

Ozone (du)

321
321
321
321
322
323
324
326
329
331
330
329
328
328
328
329
328
328
328
327
327

Forecast for Leiden, Gemeente Leiden, Netherlands (52.16,4.50)

Generated: 26/07/26 17:43:22. Forecast: 26/07/26 to 01/08/26. Timezone: UTC+2.00