Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 24

Waxing Gibbous 97%

18:05

05:16

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

Sun - Rise: 06:54, Set: 18:56, Transit: 12:54. Moon - Rise: 18:05, Set: 05:16. Civil Dark: 19:29 - 06:22. Nautical Dark: 20:07 - 05:43. Astro Dark: 20:47 - 05:03

Total Clouds (% Sky Obscured)

42
53
65
97
32
15
3
3
2
17
3
4
1
14
8
10
15
22
21
18
28
50
55
32

Low Clouds (% Sky Obscured)

10
8
9
8
7
4
0
0
0
0
0
0
0
7
4
5
7
9
8
7
13
10
13
15

Medium Clouds (% Sky Obscured)

4
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)

42
53
65
96
18
7
3
3
2
13
2
3
1
0
0
0
0
0
0
0
0
50
55
13

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)

8
6
5
3
3
3
3
2
2
2
2
2
2
3
3
4
4
5
3
2
3
4
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
15
13
13
13
12
14
14
14
14
14
14
15
13
14
18
19
21
24
24
25
25
24
24

Dew Point (°C)

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

Relative Humidity (%)

72
87
90
92
92
92
90
90
90
90
90
89
90
90
84
74
64
56
50
45
44
43
43
47

Pressure (mb)

1023
1022
1022
1022
1022
1022
1021
1021
1020
1020
1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1017
1017

Ozone (du)

282
282
283
283
283
283
283
283
283
284
284
283
281
282
283
282
281
281
282
282
283
283
283
284

Friday 25

Waxing Gibbous 99%

18:17

06:33

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
17 Bad

Sun - Rise: 06:56, Set: 18:54, Transit: 12:54. Moon - Rise: 18:17, Set: 06:33. Civil Dark: 19:26 - 06:23. Nautical Dark: 20:05 - 05:45. Astro Dark: 20:45 - 05:05

Total Clouds (% Sky Obscured)

51
69
98
100
100
100
99
100
96
82
87
100
100
100
100
100
100
100
100
72
66
89
64
69

Low Clouds (% Sky Obscured)

16
15
14
14
8
6
12
13
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
7
25
26
29
78
82
87
75
70
78
75
64
13
0
0
21
23
23
22
17

High Clouds (% Sky Obscured)

51
69
91
100
100
100
85
49
84
56
74
100
100
100
100
100
100
100
100
69
58
87
54
61

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
1
1
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
5
5
5
10
11
11
11
9
10
8
7
5
4
4
4
5
5
4
2
2
3
3
4

Chance of Frost

Temperature (°C)

22
20
19
19
17
15
15
14
13
12
11
11
10
9
10
12
14
16
17
18
19
19
19
18

Feels Like (°C)

23
19
18
17
15
13
13
12
11
9
8
7
8
7
8
9
11
13
15
17
19
20
19
19

Dew Point (°C)

14
14
14
14
13
11
11
12
11
9
7
7
7
6
6
7
7
7
7
7
6
5
3
3

Relative Humidity (%)

57
68
72
75
74
76
80
84
83
79
75
77
80
80
77
70
63
56
50
46
41
39
36
37

Pressure (mb)

1017
1017
1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1021
1021
1022
1022
1023
1023
1023
1023
1022
1022
1022
1022

Ozone (du)

284
284
283
283
282
281
281
279
278
279
281
283
285
289
291
293
293
296
297
297
297
297
296
295

Saturday 26

Full Moon 100%

18:30

07:53

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
17 Bad

Sun - Rise: 06:57, Set: 18:52, Transit: 12:53. Moon - Rise: 18:30, Set: 07:53. Civil Dark: 19:24 - 06:25. Nautical Dark: 20:03 - 05:46. Astro Dark: 20:42 - 05:07

Total Clouds (% Sky Obscured)

98
96
98
95
97
94
91
92
95
100
99
86
90
78
100
100
97
76
97
98
71
89
99
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
3
11
12
17
33
60
59
47
39
34
21
16
15
14
15
17

Medium Clouds (% Sky Obscured)

16
15
18
19
95
94
72
82
77
82
82
71
79
74
70
88
65
22
70
80
22
52
34
18

High Clouds (% Sky Obscured)

96
86
91
80
79
50
53
52
84
98
92
38
37
46
100
99
75
34
85
68
60
60
98
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
2
0
1
0
0
2
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)

5
4
2
2
1
2
1
2
2
2
2
2
2
3
2
3
5
8
10
10
10
10
9
8

Chance of Frost

Temperature (°C)

17
15
13
12
12
11
11
10
10
9
9
9
9
9
10
14
16
19
20
21
21
20
20
19

Feels Like (°C)

16
13
12
11
10
10
9
10
9
9
8
8
10
9
10
13
16
18
19
19
18
19
19
18

Dew Point (°C)

6
8
7
7
6
5
5
6
7
7
7
8
8
8
8
11
13
14
14
14
13
13
13
14

Relative Humidity (%)

48
62
68
69
67
67
69
73
78
85
88
91
93
91
87
83
79
72
67
64
61
61
65
70

Pressure (mb)

1022
1022
1022
1022
1021
1021
1021
1020
1020
1019
1018
1018
1017
1017
1017
1016
1016
1016
1015
1015
1015
1014
1014
1014

Ozone (du)

295
293
293
292
292
292
293
292
292
291
291
290
290
291
291
291
291
290
290
290
289
289
288
289

Sunday 27

Waning Gibbous 98%

18:44

09:16

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
17 Bad

Sun - Rise: 06:59, Set: 18:49, Transit: 12:53. Moon - Rise: 18:44, Set: 09:16. Civil Dark: 19:22 - 06:26. Nautical Dark: 20:00 - 05:48. Astro Dark: 20:40 - 05:09

Total Clouds (% Sky Obscured)

100
100
100
100
98
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

17
13
10
9
19
21
25
33
56
92
91
91
89
90
91
91
88
87
85
84
58
61
73
81

Medium Clouds (% Sky Obscured)

22
23
19
18
79
62
28
53
100
99
99
98
97
97
97
98
96
93
91
92
87
95
92
93

High Clouds (% Sky Obscured)

100
100
100
100
83
85
78
82
89
90
93
97
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
8
15
10
13
12
19
31
33
38
59
67
66
84
89
95
95
86
58
36
32
26
35
29

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.3
0.6
0.7
0.7
0.8
0.5
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
17
17
16
16
16
16
16
16
16
16
16
16
16
17
17
18
18
18
19
19
19
19
19

Feels Like (°C)

17
17
16
16
15
16
16
15
16
16
16
16
16
16
17
18
18
18
18
18
18
18
19
18

Dew Point (°C)

14
15
16
16
15
15
15
15
15
15
14
15
15
15
16
17
17
18
18
18
17
17
16
16

Relative Humidity (%)

77
89
93
95
95
95
93
93
95
93
89
90
92
93
96
96
96
98
96
93
88
86
80
82

Pressure (mb)

1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

288
288
289
290
289
289
288
288
287
287
286
285
285
286
287
288
289
290
291
292
293
293
295
295

Monday 28

Waning Gibbous 93%

19:01

10:43

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
17 Bad

Sun - Rise: 07:01, Set: 18:47, Transit: 12:53. Moon - Rise: 19:01, Set: 10:43. Civil Dark: 19:20 - 06:28. Nautical Dark: 19:58 - 05:50. Astro Dark: 20:37 - 05:10

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
68
72
79
76
71
69
64
58
53
57
53

Low Clouds (% Sky Obscured)

81
88
91
94
92
90
83
86
83
89
91
89
94
68
72
79
76
68
64
58
53
47
54
53

Medium Clouds (% Sky Obscured)

90
93
97
100
100
100
100
100
100
100
98
95
93
68
72
79
66
42
18
24
30
37
53
53

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
41
34
38
37
31
25
20
20
25
30
30

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

19
44
63
62
75
59
59
65
56
65
62
78
81
42
35
37
33
25
12
12
15
19
40
43

Precipitation Amount (mm)

0
0
0.4
0.4
0.6
0.2
0
0.3
0.2
0.3
0.3
0.5
0.6
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

6
4
4
4
5
5
5
5
6
7
8
8
6
6
9
10
12
13
13
15
14
13
12
12

Chance of Frost

Temperature (°C)

18
17
17
17
17
17
17
17
17
17
17
17
17
17
18
19
20
21
22
22
23
22
22
21

Feels Like (°C)

17
18
17
16
17
17
17
17
16
16
16
16
17
17
17
18
19
19
19
20
22
21
21
20

Dew Point (°C)

16
16
16
16
16
16
16
16
16
16
16
16
17
16
18
19
20
20
20
19
19
19
19
18

Relative Humidity (%)

88
93
95
93
96
96
96
95
93
93
95
96
96
95
96
95
95
91
87
83
81
80
80
83

Pressure (mb)

1016
1016
1016
1016
1016
1016
1015
1015
1014
1013
1013
1012
1012
1012
1012
1012
1013
1013
1013
1013
1012
1012
1012
1012

Ozone (du)

297
298
298
300
300
302
303
305
304
301
300
299
298
298
297
297
296
295
294
293
293
292
291
291

Tuesday 29

Waning Gibbous 86%

19:23

12:10

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
17 Bad

Sun - Rise: 07:02, Set: 18:45, Transit: 12:52. Moon - Rise: 19:23, Set: 12:10. Civil Dark: 19:17 - 06:30. Nautical Dark: 19:56 - 05:51. Astro Dark: 20:35 - 05:12

Total Clouds (% Sky Obscured)

64
64
64
65
66
56
47
61
75
91
95
98
100
100
100
100
95
91
78
69
58
51
44
42

Low Clouds (% Sky Obscured)

62
45
31
16
14
13
12
15
17
19
38
56
75
70
65
60
59
55
49
34
20
6
7
8

Medium Clouds (% Sky Obscured)

64
64
59
46
43
41
36
41
48
54
70
85
99
98
97
94
76
60
48
42
34
25
23
20

High Clouds (% Sky Obscured)

40
50
55
55
41
27
12
27
45
61
75
88
98
96
94
93
68
44
18
26
32
41
29
24

ISS Passover

Visibility (miles)

9
9
7
5
2
5
7
9
9
9
9
9
9
9
8
7
6
7
8
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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
None
None
None
None
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

45
43
41
51
55
51
55
37
19
5
37
53
63
60
57
58
57
51
39
36
41
40
28
16

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
9
8
7
8
10
11
11
11
10
12
13
15
15
15
17
15
15
14
14
14
13
11

Chance of Frost

Temperature (°C)

21
20
19
18
18
18
18
18
18
18
19
19
19
19
19
19
20
20
20
20
20
19
19
18

Feels Like (°C)

20
19
17
17
17
17
17
17
17
17
17
17
17
17
17
16
16
16
16
15
18
17
16
17

Dew Point (°C)

18
18
17
17
17
17
17
17
18
18
18
18
18
18
18
18
18
16
14
11
11
11
10
11

Relative Humidity (%)

85
86
89
90
93
93
95
95
95
95
95
95
93
93
92
93
92
80
68
57
57
57
56
63

Pressure (mb)

1012
1012
1012
1012
1012
1011
1011
1011
1010
1010
1009
1009
1009
1009
1009
1010
1010
1011
1012
1013
1013
1013
1013
1014

Ozone (du)

291
292
291
291
290
290
290
291
290
289
288
288
289
289
290
291
293
294
295
297
296
295
294
294

Wednesday 30

Waning Gibbous 76%

19:53

13:32

18 OK
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

Sun - Rise: 07:04, Set: 18:43, Transit: 12:52. Moon - Rise: 19:53, Set: 13:32. Civil Dark: 19:15 - 06:31. Nautical Dark: 19:53 - 05:53. Astro Dark: 20:33 - 05:14

Total Clouds (% Sky Obscured)

40
45
50
55
60
68
70
72
73
71
64
60
56
51
47
48
45
47
54

Low Clouds (% Sky Obscured)

9
12
9
9
21
37
51
45
39
35
28
22
14
17
22
25
27
29
28

Medium Clouds (% Sky Obscured)

14
10
6
5
9
11
13
14
14
20
24
24
27
33
34
40
40
40
40

High Clouds (% Sky Obscured)

17
31
44
55
40
27
16
30
50
60
64
60
56
51
47
48
45
47
54

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8

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

Precipitation Probability (%)

1
7
8
5
12
29
31
63
83
95
95
80
40
27
25
13
55
62
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.3
0.5
0.9
0.9
0.5
0
0
0
0
0.2
0.2
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
16
16
15
15
16
16
16
16
15
15
15
14
14
15
17
18
18
19

Feels Like (°C)

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

Dew Point (°C)

12
12
12
12
12
13
12
12
12
13
13
13
13
13
13
12
12
12
12

Relative Humidity (%)

70
77
79
82
83
82
79
78
80
85
89
90
90
92
83
75
68
66
63

Pressure (mb)

1014
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1016
1016
1016
1017
1017

Ozone (du)

293
293
293
294
294
294
295
295
295
296
296
298
299
301
302
304
305
305
305

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

Generated: 24/09/26 17:42:04. Forecast: 24/09/26 to 30/09/26. Timezone: UTC+1.00