Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 29

Waxing Gibbous 97%

18:17

04:46

17 OK
18 OK
19 OK
20 Bad
21 OK
22 Good
23 Good
00 Good
01 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 Good
14 Good
15 Good
16 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: 21:46 - 04:11. Astro Dark: 22:43 - 03:13

Total Clouds (% Sky Obscured)

9
9
20
100
16
0
0
0
0
7
5
1
0
0
0
0
0
0
0
0
0
0
0
0

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)

9
9
20
100
16
0
0
0
0
7
5
1
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 (%)

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)

21
20
18
18
17
17
16
15
14
14
14
13
12
11
12
14
16
17
17
17
17
17
17
16

Chance of Frost

Temperature (°C)

17
15
14
13
12
12
11
11
11
11
10
10
10
9
10
11
13
15
17
18
19
20
21
20

Feels Like (°C)

11
9
8
7
6
6
6
5
5
6
6
6
6
6
6
8
9
10
12
14
15
16
17
17

Dew Point (°C)

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

Relative Humidity (%)

64
66
67
64
60
61
60
59
57
60
62
61
62
64
69
67
63
55
52
49
48
49
49
50

Pressure (mb)

1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1021
1021
1020

Ozone (du)

388
388
388
390
389
390
391
390
389
391
393
395
394
393
394
394
393
392
392
391
391
389
386
384

Thursday 30

Waxing Gibbous 99%

19:31

05:00

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

Sun - Rise: 05:35, Set: 20:23, Transit: 13:00. Moon - Rise: 19:31, Set: 05:00. Civil Dark: 21:00 - 04:58. Nautical Dark: 21:48 - 04:09. Astro Dark: 22:47 - 03:10

Total Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
4
33
50
44
46
45
35
31

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
28
0
0
39
17
18

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
3
21
22
26
30
5
17
5

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
7

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
3

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
15
12
7
6
5
6
5
4
4
4
4
4
4
4
5
7
8
9
10
10
10
10
9

Chance of Frost

Temperature (°C)

20
19
18
16
14
12
11
10
9
9
8
8
7
7
8
11
14
17
18
19
19
20
19
20

Feels Like (°C)

17
16
16
15
14
12
10
9
9
9
8
8
6
6
8
11
14
16
18
18
18
19
19
19

Dew Point (°C)

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

Relative Humidity (%)

56
58
64
73
78
79
80
82
84
87
85
88
88
90
85
76
70
66
63
61
61
62
63
67

Pressure (mb)

1020
1020
1020
1020
1021
1021
1021
1021
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1020

Ozone (du)

382
382
380
378
376
377
377
376
375
374
375
376
376
377
377
377
377
378
378
379
378
379
379
377

Friday 1

Full Moon 100%

20:45

05:18

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: 05:33, Set: 20:24, Transit: 13:00. Moon - Rise: 20:45, Set: 05:18. Civil Dark: 21:02 - 04:56. Nautical Dark: 21:50 - 04:07. Astro Dark: 22:50 - 03:06

Total Clouds (% Sky Obscured)

59
100
97
100
99
99
100
100
91
95
98
100
98
93
98
95
100
100
93
60
53
57
56
48

Low Clouds (% Sky Obscured)

24
43
48
54
56
81
76
63
73
86
79
73
80
69
63
60
51
42
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

29
49
37
36
68
36
60
35
34
95
81
63
29
49
82
91
84
83
84
60
53
55
11
48

High Clouds (% Sky Obscured)

2
91
60
91
78
92
100
58
27
16
89
100
79
62
85
69
100
100
85
46
39
33
26
17

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
13
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 (%)

10
22
33
30
25
11
6
1
0
0
0
0
1
2
3
1
1
0
0
0
0
0
0
3

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)

8
8
7
5
4
3
3
3
3
3
3
3
2
2
2
1
1
1
3
3
4
5
5
5

Chance of Frost

Temperature (°C)

19
18
17
15
14
14
13
13
13
12
12
12
11
11
11
13
14
16
17
19
20
20
20
21

Feels Like (°C)

19
19
17
15
14
13
13
12
12
12
11
10
10
10
11
12
13
15
16
17
18
18
19
19

Dew Point (°C)

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

Relative Humidity (%)

69
72
81
90
90
87
92
95
96
98
98
98
95
91
84
74
64
57
51
51
52
54
56
59

Pressure (mb)

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

Ozone (du)

374
370
364
363
367
365
364
364
362
362
363
364
363
364
363
363
364
365
367
367
369
370
370
371

Saturday 2

Waning Gibbous 98%

21:58

05:42

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: 05:32, Set: 20:26, Transit: 12:59. Moon - Rise: 21:58, Set: 05:42. Civil Dark: 21:03 - 04:54. Nautical Dark: 21:52 - 04:04. Astro Dark: 22:53 - 03:03

Total Clouds (% Sky Obscured)

47
54
67
85
100
99
88
92
100
100
100
100
100
100
100
100
100
100
100
100
99
78
64
67

Low Clouds (% Sky Obscured)

0
1
10
4
15
6
1
2
32
43
53
60
73
80
73
66
59
70
77
76
65
57
51
44

Medium Clouds (% Sky Obscured)

47
54
65
67
68
78
71
81
98
99
99
99
100
100
98
97
95
95
95
96
90
47
43
28

High Clouds (% Sky Obscured)

18
23
48
70
100
99
88
92
99
98
97
98
99
100
100
100
100
100
100
100
93
71
52
60

ISS Passover

Visibility (miles)

9
8
9
9
9
9
9
9
9
9
8
2
1
0
0
2
3
2
1
8
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
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

22
35
29
8
5
0
1
4
23
35
77
95
85
81
76
85
95
94
69
52
53
47
27
30

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.9
0.5
0.5
0.3
0.5
0.6
0.6
0.3
0
0
0
0
0

Wind Speed/Direction (mph)

5
4
4
4
3
3
3
4
4
4
4
4
4
3
4
5
7
9
9
10
10
11
12
12

Chance of Frost

Temperature (°C)

20
20
19
17
16
14
14
13
13
13
13
12
13
13
13
14
14
15
15
15
15
15
15
16

Feels Like (°C)

20
19
18
17
15
14
14
14
13
12
12
11
11
12
12
13
12
12
12
12
13
12
12
13

Dew Point (°C)

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

Relative Humidity (%)

64
68
80
89
90
93
93
93
93
93
93
96
98
100
98
100
98
98
98
98
95
87
80
75

Pressure (mb)

1015
1015
1014
1014
1014
1013
1013
1012
1012
1011
1011
1011
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

371
373
373
374
375
376
374
374
373
372
373
372
373
375
377
378
381
384
389
390
393
397
391
388

Sunday 3

Waning Gibbous 95%

23:08

06:13

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 OK
12 OK
13 OK
14 OK
15 Good
16 Good

Sun - Rise: 05:30, Set: 20:27, Transit: 12:59. Moon - Rise: 23:08, Set: 06:13. Civil Dark: 21:05 - 04:52. Nautical Dark: 21:55 - 04:02. Astro Dark: 22:56 - 02:59

Total Clouds (% Sky Obscured)

71
67
71
67
66
65
66
70
70
66
60
62
63
68
42
48
56
49
45
41
29
19
11
3

Low Clouds (% Sky Obscured)

33
23
37
53
66
65
66
69
70
66
60
62
63
68
39
38
37
34
33
31
20
9
0
3

Medium Clouds (% Sky Obscured)

15
0
19
39
50
44
47
54
33
21
10
8
4
0
4
4
6
3
1
0
15
19
11
3

High Clouds (% Sky Obscured)

67
67
71
67
66
65
66
70
57
30
0
0
1
1
5
8
12
9
10
8
12
11
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 (%)

27
10
15
12
3
5
5
2
16
18
10
20
17
6
6
6
3
5
4
1
5
9
3
7

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

12
11
12
12
12
11
11
11
11
11
10
10
10
9
10
9
10
10
10
10
10
10
10
10

Relative Humidity (%)

77
78
84
90
95
96
98
98
100
96
95
95
98
96
96
86
79
72
68
66
62
62
63
63

Pressure (mb)

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

Ozone (du)

387
388
387
387
387
385
385
385
385
386
386
385
386
387
385
384
383
382
382
382
383
381
380
378

Monday 4

Waning Gibbous 90%

00:10

06:56

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

Sun - Rise: 05:28, Set: 20:29, Transit: 12:59. Moon - Rise: 00:10, Set: 06:56. Civil Dark: 21:07 - 04:50. Nautical Dark: 21:57 - 04:00. Astro Dark: 22:59 - 02:56

Total Clouds (% Sky Obscured)

8
7
16
24
33
39
45
51
37
19
4
34
65
95
96
97
98
95
93
88
89
92
95
82

Low Clouds (% Sky Obscured)

8
7
16
20
26
32
36
41
28
16
4
18
32
45
58
72
85
77
70
62
59
59
54
44

Medium Clouds (% Sky Obscured)

8
7
16
24
32
21
11
1
5
9
4
19
22
31
42
59
86
88
89
88
87
86
85
57

High Clouds (% Sky Obscured)

8
7
8
4
0
2
2
3
0
0
0
27
54
81
67
53
38
31
25
18
41
65
90
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 (%)

8
5
5
4
1
1
0
0
0
0
0
0
0
0
1
2
2
11
14
17
20
22
21
26

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
5
4
3
3
3
3
3
3
3
4
4
4
6
8
10
11
12
13
13
15
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
72
78
81
87
93
93
95
93
95
93
95
91
90
90
83
76
70
68
67
65
66
66
67

Pressure (mb)

1012
1012
1011
1011
1011
1012
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008

Ozone (du)

377
377
376
377
378
379
380
381
383
383
383
383
384
385
386
388
389
390
392
394
396
396
396
396

Tuesday 5

Waning Gibbous 83%

01:01

07:51

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

Sun - Rise: 05:26, Set: 20:30, Transit: 12:59. Moon - Rise: 01:01, Set: 07:51. Civil Dark: 21:09 - 04:48. Nautical Dark: 21:59 - 03:57. Astro Dark: 23:03 - 02:52

Total Clouds (% Sky Obscured)

69
56
48
44
37
25
13
3
2
1
0
1
2
3
13
23
33
48
63
78

Low Clouds (% Sky Obscured)

34
22
30
37
37
25
13
0
0
0
0
0
0
1
4
8
14
33
51
70

Medium Clouds (% Sky Obscured)

30
3
3
2
2
2
1
1
1
0
0
0
0
1
5
9
18
31
43
62

High Clouds (% Sky Obscured)

66
54
35
17
4
2
1
0
0
0
0
0
0
0
0
1
2
2
3
5

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 (%)

23
14
16
17
9
14
13
0
1
2
3
5
5
3
3
2
1
7
11
14

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)

16
16
15
14
12
10
8
7
5
5
4
4
4
4
4
5
7
9
9
9

Chance of Frost

Temperature (°C)

13
12
11
11
9
8
8
7
7
7
6
6
6
7
7
8
9
9
9
9

Feels Like (°C)

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

Dew Point (°C)

8
8
8
8
8
7
7
6
6
6
5
5
5
6
6
7
7
7
7
6

Relative Humidity (%)

70
75
79
84
88
93
93
93
93
93
93
93
93
94
94
93
90
87
82
80

Pressure (mb)

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

Ozone (du)

395
394
393
393
393
393
389
385
381
380
379
378
379
380
381
381
382
383
384
386

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

Generated: 29/04/26 17:07:40. Forecast: 29/04/26 to 05/05/26. Timezone: UTC+1.00