Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 18

Waning Crescent 12%

03:44

18:12

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
04 OK
05 OK

Sun - Rise: 06:44, Set: 19:09, Transit: 12:56. Moon - Rise: 03:44, Set: 18:12. Civil Dark: 19:42 - 06:11. Nautical Dark: 20:21 - 05:34. Astro Dark: 21:02 - 04:53

Total Clouds (% Sky Obscured)

92
95
92
89
91
87
73
81
75
70
92
100
86
100
98
100
94
92
94
85
46
57
34
28

Low Clouds (% Sky Obscured)

90
76
81
81
84
78
73
81
75
67
63
58
71
64
69
67
53
35
42
51
40
57
32
10

Medium Clouds (% Sky Obscured)

0
12
6
10
4
8
2
2
2
2
22
9
1
16
2
37
20
2
1
0
1
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
1
0
0
0
8
36
63
56
100
96
100
91
91
94
77
40
20
34
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
13

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
0
0
1
0
0
0
1
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)

14
14
14
15
17
18
18
18
17
18
16
15
13
11
10
9
8
8
6
5
4
4
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

16
16
16
16
15
14
14
14
15
15
15
15
16
16
16
16
15
16
16
15
15
15
14
14

Relative Humidity (%)

95
93
90
86
78
72
71
70
71
74
76
76
85
92
95
96
95
96
96
96
96
96
96
96

Pressure (mb)

1019
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1021
1021
1021
1020
1020
1020

Ozone (du)

261
261
261
260
260
260
261
261
261
261
261
262
261
261
261
260
260
260
259
259
261
261
261
261

Friday 19

Waning Crescent 6%

05:01

18:27

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

Sun - Rise: 06:45, Set: 19:07, Transit: 12:56. Moon - Rise: 05:01, Set: 18:27. Civil Dark: 19:40 - 06:13. Nautical Dark: 20:19 - 05:35. Astro Dark: 21:00 - 04:55

Total Clouds (% Sky Obscured)

23
28
5
6
2
2
3
77
90
95
0
0
9
40
36
96
95
97
29
25
100
76
100
100

Low Clouds (% Sky Obscured)

21
26
0
0
0
0
0
0
0
0
0
0
0
38
18
0
0
0
0
0
9
3
0
0

Medium Clouds (% Sky Obscured)

1
1
1
1
2
0
1
55
61
15
0
0
2
0
13
19
0
0
22
21
2
28
45
79

High Clouds (% Sky Obscured)

22
28
5
6
2
2
3
31
77
83
0
0
9
7
16
92
95
96
5
25
100
64
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 (%)

13
13
13
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
12
8
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)

3
3
3
4
7
8
9
10
11
10
10
9
6
5
4
3
2
1
1
1
1
2
2
2

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
13
14
15
16
16
14
13
12
12
12
12
13
13
12
11
9
8
7
6
6
6
7
7

Relative Humidity (%)

95
95
92
83
77
71
64
58
53
53
55
58
67
76
75
72
67
64
62
61
60
59
64
62

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1018
1018
1017
1017
1016
1016
1016
1016
1017
1016
1016
1015
1015
1014
1013
1013
1012

Ozone (du)

263
264
265
265
265
265
263
262
262
261
261
262
262
262
262
261
261
261
261
262
262
261
262
262

Saturday 20

Waning Crescent 2%

No Rise

18:39

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
04 Bad
05 Bad

Sun - Rise: 06:47, Set: 19:05, Transit: 12:56. Moon - Rise: No Rise, Set: 18:39. Civil Dark: 19:37 - 06:14. Nautical Dark: 20:16 - 05:37. Astro Dark: 20:57 - 04:56

Total Clouds (% Sky Obscured)

100
94
68
83
100
82
100
97
100
99
72
61
61
56
40
44
52
44
48
51
64
72
64
61

Low Clouds (% Sky Obscured)

0
10
22
30
31
45
39
77
79
69
65
55
54
51
30
37
43
37
45
51
64
63
61
54

Medium Clouds (% Sky Obscured)

82
72
68
83
88
82
86
85
34
11
2
53
61
40
40
21
4
44
4
51
64
27
48
61

High Clouds (% Sky Obscured)

100
82
11
50
100
15
100
24
100
99
15
15
20
30
30
20
15
3
10
10
10
10
9
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
19
16
28
15
5
2
14
2
1
0
0
5
26
58
70
63
49
21
16
11
21
15

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

2
1
4
6
7
7
7
9
13
14
16
14
10
8
7
7
8
10
11
11
8
8
7
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

61
61
63
63
64
66
73
67
56
59
60
66
77
85
92
95
92
95
92
92
86
87
89
92

Pressure (mb)

1012
1012
1011
1012
1012
1012
1011
1011
1011
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

262
262
261
260
259
258
259
260
260
260
262
262
263
264
265
265
265
266
267
268
269
270
270
271

Sunday 21

New Moon 0%

06:15

18:50

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

Sun - Rise: 06:48, Set: 19:02, Transit: 12:55. Moon - Rise: 06:15, Set: 18:50. Civil Dark: 19:35 - 06:16. Nautical Dark: 20:14 - 05:39. Astro Dark: 20:54 - 04:58

Total Clouds (% Sky Obscured)

64
54
27
23
35
42
47
38
33
29
24
23
22
56
40
59
85
66
35
43
53
65
81
72

Low Clouds (% Sky Obscured)

51
41
27
23
35
42
47
38
33
29
24
23
22
49
40
52
64
49
28
28
28
28
31
34

Medium Clouds (% Sky Obscured)

64
0
0
0
13
26
36
32
28
18
14
15
16
18
18
14
17
20
22
35
45
63
72
57

High Clouds (% Sky Obscured)

10
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
18
22
34
50
63
66
68

ISS Passover

Visibility (miles)

9
9
9
9
9
7
9
8
8
9
9
8
9
9
4
6
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
Very Light Rain
Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

7
8
11
7
16
14
20
25
32
31
38
52
55
52
47
38
38
39
30
34
18
11
18
23

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.3
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
11
12
14
14
14
14
14
14
15
15
15
15
15
14
13
12
12
12
12
12
12
10
11

Dew Point (°C)

10
9
10
10
10
10
10
10
9
9
8
8
9
10
10
10
10
10
10
10
9
9
9
9

Relative Humidity (%)

88
90
86
78
71
68
66
64
62
60
59
60
69
78
83
84
87
92
93
95
91
91
91
93

Pressure (mb)

1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014

Ozone (du)

272
274
275
276
277
278
279
279
280
281
283
284
287
290
292
292
292
292
293
295
299
302
301
300

Monday 22

Waxing Crescent 1%

07:27

19:00

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

Sun - Rise: 06:50, Set: 19:00, Transit: 12:55. Moon - Rise: 07:27, Set: 19:00. Civil Dark: 19:33 - 06:17. Nautical Dark: 20:12 - 05:40. Astro Dark: 20:52 - 05:00

Total Clouds (% Sky Obscured)

69
81
67
70
72
76
63
67
92
91
84
77
68
76
52
36
29
32
37
56
75
91
95
88

Low Clouds (% Sky Obscured)

38
37
36
33
48
63
63
67
58
48
39
30
22
23
13
3
20
31
37
35
28
21
24
31

Medium Clouds (% Sky Obscured)

51
65
59
55
47
62
45
37
37
49
50
49
44
53
26
9
6
4
2
12
25
41
47
49

High Clouds (% Sky Obscured)

69
51
27
3
2
1
0
1
10
15
15
10
11
60
32
3
3
5
6
33
57
82
83
81

ISS Passover

Visibility (miles)

9
9
9
8
9
3
7
3
2
3
6
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
29
39
34
61
61
64
84
90
75
45
23
8
8
9
6
9
8
3
8
7
3
24
25

Precipitation Amount (mm)

0
0
0
0
0.4
0.3
0.4
0.7
1
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
96
95
89
82
75
69
65
63
66
70
69
70
72
70
69
67
71
73
76
80
81
84
84

Pressure (mb)

1015
1015
1016
1016
1017
1016
1016
1016
1016
1016
1016
1017
1017
1017
1019
1019
1020
1020
1019
1019
1019
1019
1019
1019

Ozone (du)

300
300
300
300
301
304
305
305
305
306
307
307
308
309
309
309
309
310
310
310
311
311
312
312

Tuesday 23

Waxing Crescent 3%

08:39

19:12

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
04 Bad
05 Bad

Sun - Rise: 06:52, Set: 18:58, Transit: 12:55. Moon - Rise: 08:39, Set: 19:12. Civil Dark: 19:30 - 06:19. Nautical Dark: 20:09 - 05:42. Astro Dark: 20:49 - 05:02

Total Clouds (% Sky Obscured)

86
86
86
86
89
94
98
99
100
100
100
97
82
64
51
37
43
49
64
69
70
72
67
61

Low Clouds (% Sky Obscured)

37
40
46
52
59
63
67
58
50
38
54
60
61
52
47
37
43
49
60
62
65
66
57
49

Medium Clouds (% Sky Obscured)

50
40
25
10
10
10
15
41
65
85
67
57
36
46
45
25
19
13
8
12
11
10
14
15

High Clouds (% Sky Obscured)

72
48
26
0
32
65
98
99
100
100
100
97
82
63
30
0
17
33
55
48
24
3
5
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None

Precipitation Probability (%)

17
36
43
46
45
43
39
39
37
33
36
37
34
43
52
63
65
68
70
65
54
25
40
38

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.3
0.3
0.3
0.3
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
82
74
67
61
56
53
49
48
46
45
50
54
59
61
62
66
67
69
72
76
81
87
88

Pressure (mb)

1019
1019
1019
1019
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1019
1020

Ozone (du)

312
313
312
312
312
311
311
311
311
311
311
312
313
314
314
314
314
314
313
312
312
311
311
310

Wednesday 24

Waxing Crescent 7%

09:51

19:25

06 Bad
07 Bad
08 Bad
09 OK
10 OK
11 OK
12 OK
13 OK
14 OK
15 OK
16 OK
17 OK
18 OK
19 OK
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 06:53, Set: 18:56, Transit: 12:54. Moon - Rise: 09:51, Set: 19:25. Civil Dark: 19:28 - 06:20. Nautical Dark: 20:07 - 05:44. Astro Dark: 20:47 - 05:04

Total Clouds (% Sky Obscured)

56
47
42
35
32
27
25
30
34
38
33
28
26
24
22
20
20
15
15

Low Clouds (% Sky Obscured)

38
36
31
27
32
27
25
30
34
38
33
28
16
24
22
20
20
15
15

Medium Clouds (% Sky Obscured)

16
13
11
9
4
2
0
2
5
7
9
12
24
24
22
20
20
15
15

High Clouds (% Sky Obscured)

9
8
6
5
4
3
1
1
0
0
10
22
26
24
22
20
20
15
14

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

14
16
14
5
6
5
0
2
3
1
3
4
2
22
40
58
69
76
74

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.3
0.4
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
6
6
7
7
8
9
15
15
14
14
15
15
10
11
11
11
10

Dew Point (°C)

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

Relative Humidity (%)

90
91
82
73
66
59
52
48
46
43
41
45
50
56
57
59
61
62
62

Pressure (mb)

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

Ozone (du)

309
308
307
305
304
303
301
300
299
299
299
299
299
299
299
299
300
299
299

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

Generated: 18/09/25 06:01:43. Forecast: 18/09/25 to 24/09/25. Timezone: UTC+1.00