Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 23

Waxing Crescent 10%

11:03

17:53

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 OK
17 OK
18 OK
19 OK
20 Bad
21 Bad
22 OK
23 Bad
00 Bad

Sun - Rise: 07:32, Set: 16:06, Transit: 11:49. Moon - Rise: 11:03, Set: 17:53. Civil Dark: 16:43 - 06:55. Nautical Dark: 17:24 - 06:14. Astro Dark: 18:03 - 05:35

Total Clouds (% Sky Obscured)

82
83
77
100
100
99
83
67
68
61
34
44
40
43
43
28
31
27
33
44
38
21
48
40

Low Clouds (% Sky Obscured)

41
27
63
100
100
98
59
43
65
61
34
44
40
43
43
28
31
27
33
42
35
16
44
40

Medium Clouds (% Sky Obscured)

9
14
77
91
100
72
48
22
1
0
0
0
2
3
1
1
0
0
0
0
0
0
2
0

High Clouds (% Sky Obscured)

0
0
48
48
55
50
55
50
55
28
2
8
0
0
0
18
31
27
33
44
38
21
30
0

ISS Passover

Visibility (miles)

9
9
9
9
9
6
7
8
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
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

0
0
2
37
88
95
95
64
11
5
15
4
7
6
10
8
5
3
6
10
10
20
6
9

Precipitation Amount (mm)

0
0
0
0
0.6
1.3
1.3
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

3
4
5
5
9
14
17
16
15
17
18
17
17
16
15
14
13
13
15
16
17
18
18
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
94
91
91
93
91
93
87
87
83
77
76
76
76
77
79
81
79
76
75
78
77
76
75

Pressure (mb)

1008
1008
1007
1006
1004
1003
1001
1001
1001
1001
1001
1001
1000
1000
1000
999
999
999
998
998
997
997
996
996

Ozone (du)

275
270
268
266
267
265
267
266
267
271
272
272
273
275
275
274
276
279
280
281
284
287
286
284

Monday 24

Waxing Crescent 17%

11:41

19:01

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:34, Set: 16:05, Transit: 11:49. Moon - Rise: 11:41, Set: 19:01. Civil Dark: 16:42 - 06:56. Nautical Dark: 17:24 - 06:15. Astro Dark: 18:03 - 05:36

Total Clouds (% Sky Obscured)

46
54
65
93
83
94
100
99
92
69
55
64
65
75
52
90
76
50
43
44
49
70
98
98

Low Clouds (% Sky Obscured)

46
54
51
59
65
65
57
74
85
69
54
64
63
75
52
78
59
50
43
44
49
51
52
38

Medium Clouds (% Sky Obscured)

0
0
14
35
73
85
95
96
61
24
5
35
40
0
0
49
36
0
1
0
0
23
42
20

High Clouds (% Sky Obscured)

0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
1
0
0
0
0
1
2
54
95

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

15
17
39
33
53
85
73
87
77
29
36
44
41
29
4
10
5
4
5
2
2
4
1
0

Precipitation Amount (mm)

0
0
0
0
0
0.3
0.4
0.8
0.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
0
0
1
0
1
1
3
3
4
4
3
4
3
4
2
1
1
1
0
-0
-1
-1
0

Dew Point (°C)

3
3
3
4
4
5
5
5
5
5
4
6
7
6
6
5
4
5
5
4
3
2
2
2

Relative Humidity (%)

75
75
75
79
82
87
91
91
90
84
77
91
93
90
87
85
84
85
90
83
81
76
75
79

Pressure (mb)

995
994
994
993
992
992
992
992
992
992
992
993
993
994
995
996
998
999
1001
1002
1003
1004
1005
1005

Ozone (du)

287
294
301
301
302
299
297
298
300
301
305
304
307
312
312
306
309
310
313
315
312
305
301
301

Tuesday 25

Waxing Crescent 25%

12:08

20:16

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 OK
15 Good
16 OK
17 OK
18 OK
19 Good
20 Good
21 Good
22 Good
23 Good
00 Good

Sun - Rise: 07:35, Set: 16:04, Transit: 11:50. Moon - Rise: 12:08, Set: 20:16. Civil Dark: 16:42 - 06:58. Nautical Dark: 17:23 - 06:17. Astro Dark: 18:02 - 05:37

Total Clouds (% Sky Obscured)

100
100
99
73
92
100
68
54
53
55
83
61
65
38
13
23
36
26
12
0
2
5
8
6

Low Clouds (% Sky Obscured)

31
22
27
37
39
45
45
35
38
42
48
52
65
38
13
23
36
25
12
0
2
5
7
5

Medium Clouds (% Sky Obscured)

91
29
26
17
30
100
68
35
40
55
72
12
2
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

100
71
2
0
0
0
1
2
6
7
1
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 (%)

0
0
5
4
4
2
2
2
0
1
0
0
0
0
0
0
1
0
1
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
16
17
16
17
17
16
16
16
16
17
17
16
15
14
13
12
12
11
11
10
9
9
8

Chance of Frost

Temperature (°C)

5
5
4
4
4
4
4
4
4
5
6
6
7
7
7
5
5
4
4
3
3
3
3
2

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

80
83
83
80
82
82
82
83
82
80
78
76
78
75
78
80
83
85
86
86
86
88
88
89

Pressure (mb)

1006
1007
1007
1008
1008
1009
1010
1011
1012
1013
1013
1013
1014
1014
1015
1016
1017
1017
1018
1019
1019
1020
1020
1020

Ozone (du)

302
302
302
303
303
304
303
305
304
304
304
307
310
310
305
298
299
299
300
305
307
305
304
301

Wednesday 26

Waxing Crescent 34%

12:29

21:33

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

Sun - Rise: 07:37, Set: 16:03, Transit: 11:50. Moon - Rise: 12:29, Set: 21:33. Civil Dark: 16:41 - 06:59. Nautical Dark: 17:22 - 06:18. Astro Dark: 18:02 - 05:39

Total Clouds (% Sky Obscured)

4
2
0
0
0
17
32
45
45
68
48
49
35
82
86
93
100
100
100
88
96
91
71
94

Low Clouds (% Sky Obscured)

2
1
0
0
0
0
0
0
0
0
0
0
0
0
6
11
16
36
54
74
79
85
71
92

Medium Clouds (% Sky Obscured)

0
0
0
0
0
1
3
3
8
13
22
24
27
28
64
62
63
70
77
52
71
56
59
58

High Clouds (% Sky Obscured)

0
0
0
0
0
17
32
45
45
68
48
49
35
18
49
74
100
65
35
14
41
63
69
91

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
1
4
5
7
7
1
6

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
7
6
6
5
5
4
4
3
4
3
3
4
4
4
3
3
2
3
3
3
4
4
5

Chance of Frost

Temperature (°C)

2
2
2
1
1
0
0
0
1
2
4
5
6
6
6
5
4
4
4
5
5
6
6
7

Feels Like (°C)

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

Dew Point (°C)

1
0
0
-0
-1
-1
-1
-2
-2
-3
-2
-1
-1
-1
1
1
1
-0
0
1
1
2
3
4

Relative Humidity (%)

89
89
89
91
91
89
91
88
81
72
67
64
61
64
72
76
77
76
76
76
76
78
81
82

Pressure (mb)

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

Ozone (du)

299
299
299
297
297
298
299
297
296
294
293
292
292
294
294
293
293
292
290
287
285
284
284
284

Thursday 27

Waxing Crescent 44%

12:46

22:51

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:38, Set: 16:03, Transit: 11:50. Moon - Rise: 12:46, Set: 22:51. Civil Dark: 16:40 - 07:01. Nautical Dark: 17:22 - 06:19. Astro Dark: 18:01 - 05:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
99
99
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

94
91
94
97
100
100
100
100
94
88
82
88
94
100
100
100
100
97
94
92
92
91
90
90

Medium Clouds (% Sky Obscured)

85
47
77
47
54
43
42
41
51
56
66
72
79
58
47
45
32
37
47
56
65
76
87
76

High Clouds (% Sky Obscured)

91
86
87
93
89
60
50
35
55
75
96
94
91
87
90
93
94
92
94
97
96
96
95
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
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

8
10
15
18
20
20
24
24
22
20
23
33
19
11
17
19
22
21
25
37
60
79
94
78

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0.8
0.5

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
5
6
6
6
6
6
6
5
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

81
82
82
84
85
88
90
87
84
81
80
80
83
85
88
88
88
90
90
91
93
95
96
98

Pressure (mb)

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

Ozone (du)

282
281
279
278
277
276
276
276
277
276
275
274
272
271
269
269
269
268
268
267
267
266
266
265

Friday 28

First Quarter 55%

13:00

00:10

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
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 07:40, Set: 16:02, Transit: 11:51. Moon - Rise: 13:00, Set: 00:10. Civil Dark: 16:40 - 07:02. Nautical Dark: 17:21 - 06:21. Astro Dark: 18:01 - 05:41

Total Clouds (% Sky Obscured)

100
100
99
99
98
96
94
95
97
99
100
100
100
100
100
100
100
100
100
100
100
99
97
81

Low Clouds (% Sky Obscured)

91
92
87
82
78
56
37
15
15
20
20
3
7
10
15
20
24
36
44
48
38
26
17
11

Medium Clouds (% Sky Obscured)

70
62
53
44
13
20
36
51
65
79
93
96
98
100
100
100
100
99
98
95
63
32
1
2

High Clouds (% Sky Obscured)

97
97
72
44
17
25
37
49
59
69
80
55
30
0
33
67
100
100
100
100
98
97
95
72

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

56
27
26
20
16
20
25
36
44
53
79
90
95
95
95
86
59
27
15
12
10
7
6
10

Precipitation Amount (mm)

0.3
0
0
0
0
0
0
0
0
0.2
0.7
0.7
0.8
1.1
0.7
0.6
0.2
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
95
95
93
95
93
93
95
95
95
96
98
98
96
96
95
91
90
90
91
93
91
93
91

Pressure (mb)

1018
1018
1018
1018
1018
1017
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

266
266
266
266
265
264
266
268
270
270
271
271
271
272
272
273
274
275
277
280
282
286
289
293

Saturday 29

Waxing Gibbous 66%

13:12

No Set

Sun - Rise: 07:41, Set: 16:01, Transit: 11:51. Moon - Rise: 13:12, Set: No Set. Civil Dark: 16:39 - 07:03. Nautical Dark: 17:21 - 06:22. Astro Dark: 18:00 - 05:42

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: 23/11/25 01:06:35. Forecast: 23/11/25 to 29/11/25. Timezone: UTC+0.00