Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 30

Waning Gibbous 98%

21:23

06:03

04 Bad
05 Bad
06 OK
07 Bad
08 Bad
09 Bad
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 Bad
02 Bad
03 Bad

Sun - Rise: 05:27, Set: 20:51, Transit: 13:09. Moon - Rise: 21:23, Set: 06:03. Civil Dark: 21:31 - 04:47. Nautical Dark: 22:25 - 03:56. Astro Dark: 23:38 - 02:44

Total Clouds (% Sky Obscured)

39
53
26
95
100
100
39
80
47
100
74
60
87
99
91
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

7
17
23
15
22
22
10
14
12
8
0
0
0
3
2
0
12
5
0
4
6
7
15
15

Medium Clouds (% Sky Obscured)

0
0
0
4
18
32
1
0
0
10
5
5
4
34
35
61
66
66
40
27
18
21
19
5

High Clouds (% Sky Obscured)

39
53
26
90
100
100
35
74
32
100
63
55
78
97
57
100
100
100
100
100
100
100
100
100

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
17
16
17
18
19
19
21
23
23
23
22
22
22
23
22
22
20
18
16
15
14
13
12

Dew Point (°C)

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

Relative Humidity (%)

90
92
93
86
75
64
54
45
35
32
32
35
45
48
49
51
57
69
70
62
56
58
58
58

Pressure (mb)

1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1017
1017
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017

Ozone (du)

326
328
328
329
331
332
336
331
330
333
331
331
328
327
326
325
327
330
332
332
333
335
336
339

Friday 31

Waning Gibbous 94%

21:37

07:18

04 Bad
05 Good
06 Good
07 OK
08 OK
09 Good
10 Good
11 Good
12 Good
13 OK
14 OK
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 OK

Sun - Rise: 05:28, Set: 20:50, Transit: 13:09. Moon - Rise: 21:37, Set: 07:18. Civil Dark: 21:29 - 04:49. Nautical Dark: 22:22 - 03:58. Astro Dark: 23:34 - 02:48

Total Clouds (% Sky Obscured)

100
18
13
20
22
0
0
4
7
39
43
54
60
59
61
68
68
100
88
100
94
93
73
46

Low Clouds (% Sky Obscured)

5
14
13
20
22
0
0
0
0
0
2
5
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
7
13
54
55
68
22
9
3
7
3
60
73
28

High Clouds (% Sky Obscured)

100
5
0
0
0
0
0
3
2
29
30
25
25
15
15
15
42
100
88
100
94
93
48
15

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

Chance of Frost

Temperature (°C)

15
14
14
15
16
18
20
22
23
24
25
25
25
25
24
23
22
19
16
15
15
15
15
14

Feels Like (°C)

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

Dew Point (°C)

7
8
8
6
4
3
3
1
-0
-1
-1
-1
-2
-1
0
-0
2
5
5
7
6
4
6
7

Relative Humidity (%)

58
63
65
54
43
36
31
25
21
19
18
17
17
19
20
21
27
39
47
60
56
47
55
61

Pressure (mb)

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

Ozone (du)

342
345
348
349
349
349
346
343
342
340
338
338
337
337
339
339
337
335
335
334
334
335
337
339

Saturday 1

Waning Gibbous 88%

21:50

08:33

04 OK
05 OK
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good
12 Good
13 OK
14 OK
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

Sun - Rise: 05:30, Set: 20:48, Transit: 13:09. Moon - Rise: 21:50, Set: 08:33. Civil Dark: 21:27 - 04:50. Nautical Dark: 22:20 - N/A. Astro Dark: 23:30 - 02:51

Total Clouds (% Sky Obscured)

34
42
9
0
1
0
0
2
18
24
40
91
84
100
100
100
100
100
100
100
99
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
18
24
0
0
5
3
0
0
0
0
1
1
2
1
1
0

Medium Clouds (% Sky Obscured)

0
17
0
0
0
0
0
0
0
0
0
0
0
0
4
3
2
4
3
10
20
49
95
97

High Clouds (% Sky Obscured)

34
9
9
0
1
0
0
1
2
2
39
90
74
100
100
100
100
100
100
100
99
100
100
100

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

Chance of Frost

Temperature (°C)

13
12
12
13
16
18
21
22
23
24
25
26
26
26
25
23
21
18
16
15
14
13
13
12

Feels Like (°C)

12
11
11
13
15
17
19
21
22
22
23
24
22
21
20
18
18
16
15
12
11
10
10
9

Dew Point (°C)

7
7
6
6
6
5
4
3
2
2
2
2
2
4
5
8
10
12
9
4
4
4
4
3

Relative Humidity (%)

65
69
70
59
49
41
33
27
24
23
22
20
21
24
28
39
51
68
61
49
51
56
56
52

Pressure (mb)

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

Ozone (du)

341
344
346
347
343
339
337
335
332
330
329
327
326
326
326
326
325
326
325
326
327
327
327
326

Sunday 2

Waning Gibbous 86%

22:02

09:48

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 Bad
02 Bad
03 Bad

Sun - Rise: 05:31, Set: 20:46, Transit: 13:09. Moon - Rise: 22:02, Set: 09:48. Civil Dark: 21:26 - 04:52. Nautical Dark: 22:18 - 04:00. Astro Dark: 23:26 - 02:55

Total Clouds (% Sky Obscured)

100
96
94
99
100
100
97
95
94
88
83
77
81
83
87
87
76
91
91
90
55
59
60
62

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)

97
79
69
14
15
19
22
24
26
25
23
17
16
14
13
14
15
19
24
25
21
21
18
16

High Clouds (% Sky Obscured)

100
91
91
99
100
100
91
88
83
71
58
40
50
57
68
69
58
74
73
67
38
45
54
60

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
1
1
0
1
2
2
3
2
0
0
0
0
0
0
0
3
6
8
8
6
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)

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

Chance of Frost

Temperature (°C)

12
12
13
14
16
18
21
22
23
24
25
25
26
25
25
25
23
20
18
17
17
17
17
17

Feels Like (°C)

9
9
11
13
14
16
19
19
20
21
22
22
21
21
22
21
19
17
15
14
14
16
15
16

Dew Point (°C)

3
4
5
4
4
4
4
2
1
0
-1
0
1
2
1
4
5
7
8
11
13
13
13
14

Relative Humidity (%)

54
57
61
52
43
39
33
27
23
20
18
19
20
21
21
25
32
42
54
65
76
74
74
81

Pressure (mb)

1017
1017
1016
1016
1017
1017
1017
1016
1016
1016
1015
1015
1014
1014
1013
1013
1013
1013
1013
1013
1012
1012
1011
1010

Ozone (du)

326
325
324
324
325
324
324
324
324
324
324
323
322
322
322
324
325
328
329
329
330
327
327
325

Monday 3

Waning Gibbous 80%

22:14

11:05

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 Bad
02 Bad
03 Bad

Sun - Rise: 05:33, Set: 20:45, Transit: 13:09. Moon - Rise: 22:14, Set: 11:05. Civil Dark: 21:24 - 04:54. Nautical Dark: 22:15 - 04:02. Astro Dark: 23:23 - 02:58

Total Clouds (% Sky Obscured)

76
77
90
100
100
100
100
100
100
97
95
93
97
98
100
92
84
76
68
60
44
60
80
98

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5
7
4
11
23
48

Medium Clouds (% Sky Obscured)

17
23
64
56
67
97
81
48
58
66
81
93
92
86
79
67
54
42
49
50
44
53
68
87

High Clouds (% Sky Obscured)

69
69
76
98
99
100
99
99
98
91
84
79
86
93
100
73
43
14
11
7
3
7
16
28

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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

7
6
0
1
2
1
4
4
3
16
19
21
42
56
67
61
55
47
44
38
32
32
32
31

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
17
17
18
20
22
24
25
26
27
27
27
27
25
24
22
21
19
18
18
18
18
18
18

Feels Like (°C)

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

Dew Point (°C)

14
15
15
15
13
12
10
10
8
8
8
7
7
9
11
12
13
14
15
15
15
16
16
16

Relative Humidity (%)

82
86
88
78
64
51
41
38
32
30
29
28
27
34
43
53
62
70
81
82
82
83
85
88

Pressure (mb)

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

Ozone (du)

323
321
320
320
321
322
323
321
321
320
321
323
324
325
326
327
328
329
330
329
329
328
328
328

Tuesday 4

Waning Gibbous 71%

22:29

12:24

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 OK
01 Bad
02 Bad
03 Bad

Sun - Rise: 05:34, Set: 20:43, Transit: 13:09. Moon - Rise: 22:29, Set: 12:24. Civil Dark: 21:22 - 04:55. Nautical Dark: 22:13 - 04:04. Astro Dark: 23:19 - 03:02

Total Clouds (% Sky Obscured)

97
96
94
90
84
80
69
56
45
34
25
21
24
33
43
55
57
59
49
50
41
64
77
91

Low Clouds (% Sky Obscured)

47
47
46
39
35
23
19
16
16
14
12
14
17
20
27
31
31
31
31
32
25
39
53
66

Medium Clouds (% Sky Obscured)

80
75
66
63
46
24
19
8
2
1
1
0
0
3
11
19
23
23
29
27
22
18
16
22

High Clouds (% Sky Obscured)

29
34
35
31
28
20
12
4
1
1
1
0
0
0
0
1
1
4
4
6
7
8
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
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

48
57
62
66
68
69
62
53
45
40
38
37
37
33
25
22
16
2
3
2
0
6
11
14

Precipitation Amount (mm)

0
0.3
0.3
0.4
0.4
0.4
0.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
6
6
7
9
10
12
12
14
16
16
17
18
16
15
16
13
10
8
7
6
5
6
6

Chance of Frost

Temperature (°C)

17
17
17
18
19
20
21
22
23
24
24
24
24
23
22
21
19
18
16
16
15
14
14
14

Feels Like (°C)

17
17
17
17
18
18
17
17
17
17
25
24
22
21
22
21
17
17
17
17
16
16
13
13

Dew Point (°C)

16
16
15
16
15
14
13
10
8
5
6
6
7
7
8
9
9
10
11
11
11
11
11
10

Relative Humidity (%)

90
89
88
86
77
69
62
48
38
30
31
32
34
37
41
46
52
60
68
72
75
79
79
76

Pressure (mb)

1005
1005
1005
1005
1005
1005
1006
1006
1006
1006
1006
1006
1007
1007
1008
1008
1009
1010
1011
1012
1012
1013
1013
1014

Ozone (du)

328
330
331
332
333
335
336
337
338
339
339
339
339
337
336
334
334
333
333
331
329
327
325
324

Wednesday 5

Waning Gibbous 60%

22:48

13:47

Sun - Rise: 05:36, Set: 20:41, Transit: 13:09. Moon - Rise: 22:48, Set: 13:47. Civil Dark: 21:20 - 04:57. Nautical Dark: 22:11 - 04:06. Astro Dark: 23:15 - 03:05

Total Clouds (% Sky Obscured)

Low Clouds (% Sky Obscured)

Medium Clouds (% Sky Obscured)

High Clouds (% Sky Obscured)

ISS Passover

Visibility (miles)

Fog (%)

Precipitation Type

Precipitation Probability (%)

Precipitation Amount (mm)

Wind Speed/Direction (mph)

Chance of Frost

Temperature (°C)

Feels Like (°C)

Dew Point (°C)

Relative Humidity (%)

Pressure (mb)

Ozone (du)

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

Generated: 30/07/26 04:19:41. Forecast: 30/07/26 to 05/08/26. Timezone: UTC+1.00