Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 15

Waning Crescent 2%

05:25

17:41

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: 06:05, Set: 19:58, Transit: 13:02. Moon - Rise: 05:25, Set: 17:41. Civil Dark: 20:33 - 05:30. Nautical Dark: 21:16 - 04:46. Astro Dark: 22:05 - 03:57

Total Clouds (% Sky Obscured)

84
82
71
64
44
61
68
72
79
83
76
97
61
83
99
100
100
100
100
97
95
89
66
83

Low Clouds (% Sky Obscured)

65
52
47
45
44
61
68
66
66
69
67
46
36
56
59
60
68
70
61
55
50
47
41
37

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
3
40
40
50
16
12
0
0
22
20
23
6
22
27
42
53
72

High Clouds (% Sky Obscured)

0
0
0
0
0
0
7
59
55
22
20
48
18
51
41
59
79
83
92
96
94
86
66
79

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
8
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 (%)

2
1
0
0
0
0
0
0
0
0
10
11
2
13
18
21
28
30
21
7
3
3
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
86
87
90
93
95
95
95
95
95
95
95
96
96
95
90
83
75
69
67
66
67
70
73

Pressure (mb)

1015
1016
1016
1016
1017
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1021
1021
1021
1021
1020

Ozone (du)

395
402
402
399
390
390
387
384
383
385
386
386
380
377
376
373
373
371
369
366
365
365
365
363

Thursday 16

Waning Crescent 0%

05:40

19:06

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: 06:03, Set: 20:00, Transit: 13:02. Moon - Rise: 05:40, Set: 19:06. Civil Dark: 20:35 - 05:27. Nautical Dark: 21:18 - 04:44. Astro Dark: 22:07 - 03:54

Total Clouds (% Sky Obscured)

100
99
97
99
100
100
100
100
87
68
82
88
100
100
97
99
97
96
100
100
99
90
73
64

Low Clouds (% Sky Obscured)

3
0
0
0
12
65
69
79
55
56
69
62
32
0
26
51
40
52
47
52
41
40
31
12

Medium Clouds (% Sky Obscured)

99
97
96
94
33
37
42
97
53
23
23
24
1
39
47
33
38
25
23
19
33
31
34
32

High Clouds (% Sky Obscured)

95
98
91
97
100
100
100
22
29
45
31
63
100
100
86
95
85
77
75
77
98
52
10
3

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
19
20
21
12
6
1
0
0
0
0
0
0
0
0
0
1
1
0
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)

13
10
9
7
6
5
5
4
5
4
4
3
3
4
5
8
12
14
15
16
16
15
15
15

Chance of Frost

Temperature (°C)

14
13
13
12
11
10
10
10
10
11
10
9
9
9
8
10
12
13
14
15
15
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
80
83
88
96
95
93
91
91
91
93
91
93
96
96
90
83
76
71
69
68
68
70
76

Pressure (mb)

1020
1020
1020
1020
1021
1021
1020
1020
1020
1020
1019
1019
1019
1019
1019
1020
1020
1020
1020
1020
1020
1020
1020
1020

Ozone (du)

360
358
359
362
361
360
365
369
364
361
360
357
357
355
353
353
355
357
359
359
357
357
355
354

Friday 17

New Moon 2%

05:59

20:35

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 Bad
14 Bad
15 Bad
16 Bad

Sun - Rise: 06:00, Set: 20:02, Transit: 13:02. Moon - Rise: 05:59, Set: 20:35. Civil Dark: 20:37 - 05:25. Nautical Dark: 21:21 - 04:41. Astro Dark: 22:10 - 03:51

Total Clouds (% Sky Obscured)

78
46
80
73
96
98
99
92
99
95
98
98
96
93
95
85
85
36
33
45
50
47
50
46

Low Clouds (% Sky Obscured)

24
0
6
0
17
43
71
82
99
90
98
78
45
0
28
49
38
35
33
45
47
47
50
44

Medium Clouds (% Sky Obscured)

33
23
27
22
37
32
30
30
80
36
84
90
93
93
33
25
20
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

27
4
1
1
73
72
73
36
10
5
1
10
1
20
44
7
2
10
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 (%)

0
0
0
0
1
4
5
8
14
31
33
30
29
20
10
3
1
0
0
0
2
3
7
1

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
84
90
89
92
87
87
95
95
95
95
91
93
91
90
81
72
64
60
58
54
54
59
61

Pressure (mb)

1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023
1024
1024
1024
1024
1024
1024
1024

Ozone (du)

356
355
355
355
356
357
357
358
360
363
367
370
373
379
383
384
386
391
395
400
398
395
395
392

Saturday 18

Waxing Crescent 7%

06:24

22:08

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

Sun - Rise: 05:58, Set: 20:03, Transit: 13:02. Moon - Rise: 06:24, Set: 22:08. Civil Dark: 20:38 - 05:23. Nautical Dark: 21:23 - 04:39. Astro Dark: 22:13 - 03:48

Total Clouds (% Sky Obscured)

41
32
45
38
35
34
33
30
27
25
25
18
11
2
0
0
0
3
6
9
19
29
38
38

Low Clouds (% Sky Obscured)

40
32
41
37
33
34
33
30
27
25
25
18
11
1
0
0
0
3
6
9
19
22
25
18

Medium Clouds (% Sky Obscured)

0
0
4
9
16
12
8
4
2
1
0
0
0
0
0
0
0
0
0
0
9
16
26
29

High 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

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 (%)

3
4
2
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)

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

Chance of Frost

Temperature (°C)

15
15
14
12
11
10
9
9
8
8
7
7
7
6
6
8
9
11
12
13
14
15
15
15

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

58
63
74
79
84
85
88
90
91
93
93
91
93
93
91
81
70
61
57
53
50
48
47
48

Pressure (mb)

1024
1024
1025
1025
1026
1026
1027
1027
1027
1027
1027
1027
1028
1028
1028
1028
1029
1029
1029
1028
1028
1028
1027
1027

Ozone (du)

388
390
389
390
393
392
394
392
390
390
390
387
387
387
387
390
393
395
396
397
397
397
397
397

Sunday 19

Waxing Crescent 14%

07:01

23:39

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

Sun - Rise: 05:56, Set: 20:05, Transit: 13:01. Moon - Rise: 07:01, Set: 23:39. Civil Dark: 20:40 - 05:21. Nautical Dark: 21:25 - 04:36. Astro Dark: 22:15 - 03:45

Total Clouds (% Sky Obscured)

39
37
34
28
22
19
15
11
14
18
22
27
33
38
45
48
47
59
67
72
81
90
99
77

Low Clouds (% Sky Obscured)

10
1
11
23
22
19
12
0
10
18
22
27
33
38
45
48
47
53
50
47
43
37
36
24

Medium Clouds (% Sky Obscured)

34
37
25
12
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12
27
45
38

High Clouds (% Sky Obscured)

0
0
0
0
0
5
10
11
10
5
0
1
1
1
1
0
0
12
23
34
56
77
99
71

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
1
1
1
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)

9
8
7
6
5
6
6
6
6
6
6
7
7
8
8
10
12
14
14
14
15
15
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
12
11
10
7
6
5
4
4
3
3
3
3
3
4
4
5
5
7
7
10
8
8

Dew Point (°C)

4
7
8
9
8
7
6
4
4
4
4
3
4
4
4
4
3
3
3
3
3
3
3
4

Relative Humidity (%)

50
61
75
87
88
91
91
90
91
93
94
94
96
98
96
84
71
62
59
55
52
51
51
51

Pressure (mb)

1027
1027
1027
1027
1027
1028
1028
1028
1028
1028
1028
1027
1027
1027
1027
1027
1027
1027
1027
1026
1026
1026
1025
1025

Ozone (du)

397
396
395
395
395
396
396
395
394
393
392
391
391
392
392
392
392
392
392
391
391
390
390
389

Monday 20

Waxing Crescent 24%

07:54

01:01

17 Bad
18 OK
19 OK
20 OK
21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 OK
03 OK
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: 05:54, Set: 20:06, Transit: 13:01. Moon - Rise: 07:54, Set: 01:01. Civil Dark: 20:42 - 05:19. Nautical Dark: 21:27 - 04:34. Astro Dark: 22:18 - 03:42

Total Clouds (% Sky Obscured)

59
40
39
39
38
44
51
62
45
26
6
38
70
100
92
77
57
60
62
73
79
83
88
78

Low Clouds (% Sky Obscured)

14
3
3
3
3
15
28
40
34
26
6
19
25
36
37
32
28
37
47
57
56
55
54
40

Medium Clouds (% Sky Obscured)

26
14
19
25
34
24
13
4
4
2
0
0
0
0
15
30
25
20
15
10
15
15
15
20

High Clouds (% Sky Obscured)

47
31
27
20
7
6
3
3
2
1
1
34
67
100
92
77
57
50
50
55
68
62
64
71

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
5
6
3
11
13
15
14
13
5
10
10
11
12
12
12
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
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
8
8
5
5
5
4
4
3
1
2
2
2
2
1
3
4
4
5
5
6
6
6
5

Dew Point (°C)

4
4
4
3
2
1
2
2
3
4
4
5
5
5
5
4
4
4
4
4
5
4
4
3

Relative Humidity (%)

55
58
64
65
69
72
78
85
93
93
91
91
88
87
85
77
68
62
61
61
62
60
57
54

Pressure (mb)

1025
1025
1025
1025
1025
1026
1026
1026
1026
1025
1025
1024
1024
1024
1024
1024
1024
1023
1023
1023
1022
1022
1021
1021

Ozone (du)

391
392
393
396
399
401
406
410
415
416
418
419
416
413
409
414
419
423
420
416
413
412
411
411

Tuesday 21

Waxing Crescent 24%

09:05

02:05

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 OK
06 OK
07 OK
08 OK
09 OK
10 OK
11 OK
12 OK

Sun - Rise: 05:52, Set: 20:08, Transit: 13:01. Moon - Rise: 09:05, Set: 02:05. Civil Dark: 20:44 - 05:16. Nautical Dark: 21:29 - 04:31. Astro Dark: 22:21 - 03:39

Total Clouds (% Sky Obscured)

67
57
53
53
49
50
47
48
51
54
57
44
29
18
16
15
14
15
13
14

Low Clouds (% Sky Obscured)

26
11
9
5
2
7
14
21
15
8
3
5
3
1
1
0
0
4
9
13

Medium Clouds (% Sky Obscured)

20
20
20
20
20
15
15
10
15
15
15
15
15
18
16
15
14
15
13
14

High Clouds (% Sky Obscured)

67
57
53
53
49
50
47
48
46
30
10
19
29
18
16
15
14
12
5
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

Fog (%)

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

Precipitation Probability (%)

9
3
3
2
1
2
2
1
4
4
3
9
9
5
16
24
31
32
31
28

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
6
4
4
5
4
4
3
1
1
1
1
1
1
2
2
3
4
4

Dew Point (°C)

3
3
3
3
3
2
2
2
2
2
2
2
2
1
1
1
1
1
2
2

Relative Humidity (%)

56
60
63
65
69
72
75
78
80
82
85
86
85
83
82
72
63
54
53
52

Pressure (mb)

1020
1020
1020
1020
1020
1020
1020
1019
1019
1019
1018
1018
1017
1017
1017
1016
1016
1016
1016
1015

Ozone (du)

409
406
404
404
404
403
401
398
396
397
398
398
394
389
385
383
381
380
378
376

Forecast for Chichester, West Sussex, United Kingdom (50.84,-0.77)

Generated: 15/04/26 17:39:15. Forecast: 15/04/26 to 21/04/26. Timezone: UTC+1.00