Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 24

Waning Crescent 17%

04:46

15:51

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 OK
22 Bad
23 OK
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:46, Set: 20:13, Transit: 13:01. Moon - Rise: 04:46, Set: 15:51. Civil Dark: 20:50 - 05:09. Nautical Dark: 21:36 - 04:23. Astro Dark: 22:30 - 03:29

Total Clouds (% Sky Obscured)

97
95
99
98
96
100
91
98
100
88
69
57
49
45
50
25
65
55
69
49
46
47
57
49

Low Clouds (% Sky Obscured)

97
86
90
90
76
100
84
70
66
45
53
27
29
45
50
25
65
55
69
49
46
47
57
45

Medium Clouds (% Sky Obscured)

41
37
84
63
71
74
64
50
50
34
16
19
11
0
0
0
0
0
0
0
0
1
2
2

High Clouds (% Sky Obscured)

4
15
52
10
3
0
0
0
1
0
0
0
0
0
0
3
4
4
4
2
1
1
2
14

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 (%)

7
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
5
15
16
15
4
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
6
5
5
6
5
5
4
4
4
4
5
6
5
4
4
3
3
3
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
83
80
75
66
59
54
53
62
67
68
72
76
78
81
87
90
93
93
93
91
91
93
90

Pressure (mb)

1021
1021
1021
1022
1022
1022
1022
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1022

Ozone (du)

348
351
349
348
348
347
346
344
343
342
342
343
342
342
342
342
342
341
339
337
336
335
333
334

Friday 25

Waning Crescent 9%

04:59

17:19

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
06 Bad
07 Bad

Sun - Rise: 05:44, Set: 20:15, Transit: 13:00. Moon - Rise: 04:59, Set: 17:19. Civil Dark: 20:51 - 05:07. Nautical Dark: 21:38 - 04:21. Astro Dark: 22:32 - 03:25

Total Clouds (% Sky Obscured)

51
78
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

46
60
49
45
43
35
17
0
0
0
0
0
0
30
7
10
35
73
68
66
74
65
71
71

Medium Clouds (% Sky Obscured)

2
2
86
100
87
95
80
59
52
55
50
46
100
100
81
100
100
94
100
100
100
100
100
100

High Clouds (% Sky Obscured)

27
54
98
84
100
87
91
96
97
97
96
98
100
100
22
21
100
1
100
92
87
25
100
96

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

Precipitation Probability (%)

0
0
0
0
0
0
0
3
1
0
1
0
0
0
9
6
18
39
38
36
46
55
56
52

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
75
69
65
63
61
60
61
64
68
71
80
84
84
87
91
93
93
93
91
90
87
87
85

Pressure (mb)

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

Ozone (du)

334
333
334
335
336
337
338
338
338
338
338
337
337
338
341
344
344
345
344
345
348
349
350
350

Saturday 26

Waning Crescent 3%

05:15

18:50

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 OK
05 OK
06 OK
07 OK

Sun - Rise: 05:42, Set: 20:17, Transit: 13:00. Moon - Rise: 05:15, Set: 18:50. Civil Dark: 20:53 - 05:05. Nautical Dark: 21:40 - 04:18. Astro Dark: 22:35 - 03:22

Total Clouds (% Sky Obscured)

100
100
100
100
100
99
99
99
92
85
82
86
93
98
98
97
98
94
91
45
33
35
35
36

Low Clouds (% Sky Obscured)

47
43
27
56
63
41
20
1
0
0
1
3
4
6
18
27
30
31
29
26
24
19
16
21

Medium Clouds (% Sky Obscured)

100
100
99
96
92
99
99
99
92
85
82
86
92
94
94
94
93
85
69
22
20
24
33
36

High Clouds (% Sky Obscured)

89
100
100
100
100
97
94
91
67
43
19
16
8
0
0
5
1
5
5
2
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 (%)

46
40
36
26
18
22
24
18
19
15
7
7
3
0
4
5
2
5
1
0
1
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
6
7
7
6
6
7
6
4
3
2
2
1
2
1
1
1
1
1
1
2
1
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
81
77
73
69
67
64
68
74
76
76
82
84
87
87
87
88
87
88
88
88
90
88
87

Pressure (mb)

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

Ozone (du)

349
348
349
350
348
350
350
350
351
351
353
354
357
358
358
358
359
359
359
361
362
361
357
355

Sunday 27

New Moon 0%

05:35

20:24

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

Sun - Rise: 05:40, Set: 20:18, Transit: 13:00. Moon - Rise: 05:35, Set: 20:24. Civil Dark: 20:55 - 05:03. Nautical Dark: 21:42 - 04:16. Astro Dark: 22:38 - 03:19

Total Clouds (% Sky Obscured)

33
28
42
40
90
75
58
39
59
78
100
84
70
49
46
29
36
8
4
22
20
36
42
15

Low Clouds (% Sky Obscured)

25
28
19
11
2
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
7
15
22
0

Medium Clouds (% Sky Obscured)

33
28
37
40
52
47
48
0
37
30
7
8
9
9
5
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
8
11
41
39
32
30
53
77
100
79
58
32
29
15
17
3
1
9
7
9
16
10

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
3
5
3
7
8
3
3
2
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)

2
2
3
4
5
6
8
8
9
8
8
6
4
4
3
3
3
2
3
2
2
1
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
76
70
64
63
62
65
66
67
72
75
85
92
92
91
90
90
90
90
88
90
90
90
88

Pressure (mb)

1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025
1025

Ozone (du)

357
360
360
359
358
357
355
354
354
354
353
352
352
350
348
347
345
345
344
343
341
340
338
337

Monday 28

Waxing Crescent 1%

06:02

22:00

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

Sun - Rise: 05:38, Set: 20:20, Transit: 13:00. Moon - Rise: 06:02, Set: 22:00. Civil Dark: 20:57 - 05:01. Nautical Dark: 21:44 - 04:13. Astro Dark: 22:41 - 03:15

Total Clouds (% Sky Obscured)

15
25
10
5
5
4
6
7
14
29
40
31
21
12
11
7
3
3
0
0
0
2
13
20

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
7
16
23
16
8
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
1
1
0
0
1
2
3
3
0
0
0
1
0
1

High Clouds (% Sky Obscured)

5
5
5
5
5
4
6
6
7
11
19
20
18
7
7
3
3
0
0
0
0
0
0
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)

2
4
5
6
7
9
8
8
8
7
7
7
6
6
5
5
5
5
5
5
5
5
5
5

Chance of Frost

Temperature (°C)

11
13
16
17
17
18
18
18
18
17
16
15
13
12
10
10
9
9
9
8
8
9
9
10

Feels Like (°C)

10
10
12
13
13
14
17
17
16
16
16
16
13
13
13
11
11
11
8
7
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

81
75
70
67
64
62
60
59
57
64
69
76
79
81
84
85
87
87
90
90
90
90
88
87

Pressure (mb)

1024
1024
1025
1024
1024
1024
1023
1023
1022
1022
1022
1021
1021
1021
1021
1021
1021
1020
1020
1020
1019
1019
1019
1019

Ozone (du)

336
335
334
333
333
332
331
331
330
330
330
329
330
331
331
331
332
332
331
331
331
331
331
331

Tuesday 29

Waxing Crescent 5%

06:41

23:32

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

Sun - Rise: 05:37, Set: 20:21, Transit: 13:00. Moon - Rise: 06:41, Set: 23:32. Civil Dark: 20:59 - 04:59. Nautical Dark: 21:46 - 04:11. Astro Dark: 22:44 - 03:12

Total Clouds (% Sky Obscured)

20
16
13
10
5
4
3
2
2
2
2
3
3
3
4
5
5
13
20
28
31
33
33
27

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)

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

High Clouds (% Sky Obscured)

3
4
6
4
2
1
2
2
1
2
2
2
2
2
3
3
3
7
9
11
8
6
6
4

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)

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

Chance of Frost

Temperature (°C)

12
14
16
17
18
19
19
20
20
19
18
17
15
14
12
11
11
10
10
10
9
10
10
11

Feels Like (°C)

9
10
11
12
13
14
18
17
17
17
17
17
13
13
12
11
11
10
8
8
8
9
8
8

Dew Point (°C)

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

Relative Humidity (%)

80
73
66
61
58
53
55
57
59
62
68
72
72
71
69
72
77
80
83
87
88
88
87
84

Pressure (mb)

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

Ozone (du)

331
330
330
331
332
333
333
333
333
332
332
332
334
335
337
339
340
341
340
340
339
339
339
339

Wednesday 30

Waxing Crescent 12%

07:36

00:51

Sun - Rise: 05:35, Set: 20:23, Transit: 13:00. Moon - Rise: 07:36, Set: 00:51. Civil Dark: 21:00 - 04:57. Nautical Dark: 21:49 - 04:08. Astro Dark: 22:47 - 03:09

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: 24/04/25 08:34:03. Forecast: 24/04/25 to 30/04/25. Timezone: UTC+1.00