Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 27

Waxing Gibbous 86%

15:50

04:22

06 Bad
07 Bad
08 Bad
09 Good
10 Good
11 Good
12 OK
13 Good
14 Good
15 Good
16 OK
17 OK
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: 05:41, Set: 20:18, Transit: 13:00. Moon - Rise: 15:50, Set: 04:22. Civil Dark: 20:54 - 05:04. Nautical Dark: 21:41 - 04:17. Astro Dark: 22:37 - 03:21

Total Clouds (% Sky Obscured)

75
73
54
0
16
15
29
5
0
1
38
24
48
70
63
67
100
90
75
81
85
89
97
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
6
30
26
44
51
69
74
81
79
82
77

Medium Clouds (% Sky Obscured)

56
73
7
0
9
8
15
3
0
1
19
12
37
70
63
67
100
64
52
50
50
29
66
91

High Clouds (% Sky Obscured)

3
3
0
0
0
0
0
0
0
0
3
3
3
3
16
0
0
0
0
0
0
0
2
38

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
2
5
14
32
29
7
3
12
16
50
51
43
31
23
19

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
6
8
7
7
5
5
5
5
7
7
7
5
4
6
11
14
14
12
13
12
13
15

Chance of Frost

Temperature (°C)

8
8
10
12
13
14
15
16
16
15
15
15
14
13
13
12
12
11
11
10
10
9
10
10

Feels Like (°C)

5
6
7
10
12
13
15
15
16
16
15
14
14
12
12
10
9
6
6
7
7
6
5
5

Dew Point (°C)

2
2
4
4
6
7
7
7
7
7
8
8
8
9
10
10
10
10
9
8
8
8
8
8

Relative Humidity (%)

66
65
65
61
61
60
58
57
56
57
59
66
68
74
82
87
89
92
88
87
88
90
90
91

Pressure (mb)

1024
1024
1024
1025
1025
1025
1024
1024
1024
1023
1023
1022
1022
1022
1022
1022
1022
1022
1022
1023
1022
1022
1022
1022

Ozone (du)

375
377
379
379
379
381
386
388
385
384
386
388
386
391
397
403
407
413
419
427
437
441
440
440

Tuesday 28

Waxing Gibbous 93%

17:04

04:34

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

Sun - Rise: 05:39, Set: 20:19, Transit: 13:00. Moon - Rise: 17:04, Set: 04:34. Civil Dark: 20:56 - 05:02. Nautical Dark: 21:43 - 04:15. Astro Dark: 22:40 - 03:17

Total Clouds (% Sky Obscured)

87
96
98
96
100
99
84
52
63
83
54
51
49
37
2
0
0
11
0
0
10
0
0
0

Low Clouds (% Sky Obscured)

76
90
89
61
56
37
25
17
5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

41
37
31
32
87
99
84
52
63
83
54
51
49
37
2
0
0
0
0
0
7
0
0
0

High Clouds (% Sky Obscured)

1
0
0
33
0
20
45
2
40
21
12
0
0
0
0
0
0
8
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 (%)

11
11
9
10
4
2
2
6
3
0
1
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)

16
17
17
20
21
22
21
22
21
23
23
24
24
24
24
24
24
24
24
24
24
24
24
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

8
7
8
7
7
7
7
7
8
8
8
8
8
7
6
6
6
6
6
6
6
7
7
6

Relative Humidity (%)

90
88
88
81
76
73
71
64
67
63
62
63
63
65
66
68
72
73
78
78
78
81
82
78

Pressure (mb)

1022
1023
1023
1023
1023
1023
1023
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1021
1021
1021
1021
1021

Ozone (du)

441
439
438
436
438
437
431
431
430
431
431
432
429
422
417
416
416
415
415
412
409
406
404
401

Wednesday 29

Waxing Gibbous 97%

18:17

04:46

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

Sun - Rise: 05:37, Set: 20:21, Transit: 13:00. Moon - Rise: 18:17, Set: 04:46. Civil Dark: 20:58 - 05:00. Nautical Dark: 21:45 - 04:12. Astro Dark: 22:43 - 03:14

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
19
5
32
88
73
76
100
96
70
51
36
4
4
1
2
2
1
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)

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

High Clouds (% Sky Obscured)

0
0
0
0
0
0
19
5
32
88
73
76
100
96
70
51
36
4
2
1
1
1
1
1

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)

23
23
25
25
26
25
26
27
26
26
26
27
26
25
24
24
24
23
22
23
22
22
22
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
76
76
74
71
70
68
68
66
66
66
64
62
61
63
62
62
63
65
66
67
67
68
68

Pressure (mb)

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

Ozone (du)

398
396
393
392
391
391
390
390
388
388
387
385
384
382
379
376
375
375
374
373
374
373
372
369

Thursday 30

Waxing Gibbous 99%

19:31

05:01

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

Sun - Rise: 05:36, Set: 20:22, Transit: 13:00. Moon - Rise: 19:31, Set: 05:01. Civil Dark: 21:00 - 04:58. Nautical Dark: 21:47 - 04:10. Astro Dark: 22:46 - 03:11

Total Clouds (% Sky Obscured)

2
2
2
2
2
4
3
2
0
4
7
7
51
55
60
65
60
60
55
43
7
4
14
5

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
1
0

Medium 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
5
3

High Clouds (% Sky Obscured)

1
1
0
0
0
0
0
0
0
1
1
1
8
10
10
10
15
15
30
28
3
3
7
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)

22
22
23
23
24
23
23
21
21
20
20
18
17
16
15
14
12
11
11
11
11
11
11
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

71
73
73
72
71
69
68
68
67
67
66
68
72
73
76
78
80
84
86
89
90
92
92
90

Pressure (mb)

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

Ozone (du)

366
365
365
367
368
369
370
369
368
367
365
364
363
362
363
364
365
365
365
364
363
362
362
362

Friday 1

Full Moon 100%

20:44

05:19

06 Good
07 Good
08 OK
09 Good
10 Good
11 Good
12 OK
13 OK
14 OK
15 OK
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: 05:34, Set: 20:24, Transit: 13:00. Moon - Rise: 20:44, Set: 05:19. Civil Dark: 21:01 - 04:56. Nautical Dark: 21:50 - 04:07. Astro Dark: 22:49 - 03:07

Total Clouds (% Sky Obscured)

6
14
28
11
14
18
24
27
20
16
37
59
84
91
91
85
94
97
97
98
98
100
100
100

Low Clouds (% Sky Obscured)

1
0
0
0
0
0
0
1
2
4
12
20
28
61
74
85
65
49
36
33
36
35
46
48

Medium Clouds (% Sky Obscured)

3
11
23
7
13
14
20
12
6
3
21
42
72
56
44
44
26
14
4
30
57
86
86
85

High Clouds (% Sky Obscured)

1
2
3
1
0
0
0
1
2
2
30
59
84
90
91
85
94
90
89
85
85
86
87
85

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
4
19
17
35
32
34
46
51
57
47
36
21
21
12
4
17
19

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
87
83
80
78
75
74
77
78
80
82
79
79
81
80
83
84
84
84
84
84
84
84
84

Pressure (mb)

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

Ozone (du)

362
362
361
361
361
361
360
360
360
358
357
356
356
356
358
360
362
362
363
363
363
363
364
363

Saturday 2

Waning Gibbous 98%

21:57

05:42

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
02 Bad
03 Bad
04 Bad
05 Bad

Sun - Rise: 05:32, Set: 20:25, Transit: 13:00. Moon - Rise: 21:57, Set: 05:42. Civil Dark: 21:03 - 04:54. Nautical Dark: 21:52 - 04:05. Astro Dark: 22:52 - 03:04

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
90
85
85
83
81
68
76
87
97
98
99

Low Clouds (% Sky Obscured)

54
60
63
67
58
52
45
55
66
79
73
73
75
70
63
56
49
48
44
59
72
89
87
86

Medium Clouds (% Sky Obscured)

84
89
94
100
94
88
83
87
90
93
89
86
80
78
72
79
83
81
68
76
87
95
75
56

High Clouds (% Sky Obscured)

81
87
94
99
99
99
99
100
100
100
100
100
100
68
39
20
40
41
38
37
53
62
69
79

ISS Passover

Visibility (miles)

9
9
9
8
8
8
9
9
9
9
8
9
9
9
7
5
3
4
4
5
6
7
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
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None

Precipitation Probability (%)

21
24
32
45
53
58
55
65
74
76
75
73
71
71
73
71
70
67
65
64
61
58
53
46

Precipitation Amount (mm)

0
0
0
0
0
0.2
0
0.2
0.3
0.3
0.3
0.3
0
0.2
0.3
0.5
0.4
0.4
0.4
0.3
0.3
0.2
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

12
12
12
12
12
12
13
13
12
12
12
12
12
12
12
11
11
11
11
11
11
11
11
11

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
10
11
10
10
10
10
11
11
10
10
10
10
10
10
10
10
10
10

Relative Humidity (%)

84
86
86
86
87
87
86
86
87
89
90
90
92
92
92
93
95
95
95
95
93
95
93
93

Pressure (mb)

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

Ozone (du)

363
363
365
367
369
368
368
368
368
368
368
369
369
370
371
372
373
375
377
380
382
384
386
387

Sunday 3

Waning Gibbous 95%

23:07

No Set

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

Sun - Rise: 05:30, Set: 20:27, Transit: 13:00. Moon - Rise: 23:07, Set: No Set. Civil Dark: 21:05 - 04:52. Nautical Dark: 21:54 - 04:03. Astro Dark: 22:55 - 03:01

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
99
98
98
99
99
93
86
80

Low Clouds (% Sky Obscured)

86
87
90
93
88
81
74
62
50
42
50
52
51
56
65
77
77
75
73

Medium Clouds (% Sky Obscured)

37
36
36
35
24
14
5
10
16
21
16
11
9
12
16
27
37
43
55

High Clouds (% Sky Obscured)

88
79
64
55
57
53
59
75
84
91
82
75
65
48
29
12
32
38
34

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

39
33
27
24
34
36
31
23
17
13
15
13
11
16
15
7
14
10
5

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
12
13
14
15
15
16
16
15
14
13
13
12
12
10
9
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
6
7
7
7
6
6
6
7
6
6
7
6
5
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

93
91
91
91
90
88
85
84
81
81
78
78
78
77
77
76
77
77
78

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

388
389
390
391
392
393
393
393
391
389
387
386
386
386
385
384
382
381
379

Forecast for Selsey, West Sussex, United Kingdom (50.73,-0.79)

Generated: 27/04/26 06:39:15. Forecast: 27/04/26 to 03/05/26. Timezone: UTC+1.00