Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

00:53

17:25

04 OK
05 OK
06 OK
07 OK
08 OK
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: 06:36, Set: 19:10, Transit: 12:53. Moon - Rise: 00:53, Set: 17:25. Civil Dark: 19:43 - 06:03. Nautical Dark: 20:23 - 05:23. Astro Dark: 21:05 - 04:41

Total Clouds (% Sky Obscured)

26
33
37
41
36
44
49
50
97
93
95
100
100
81
87
57
100
100
100
100
100
100
100
99

Low Clouds (% Sky Obscured)

26
33
37
41
36
44
42
50
62
29
34
16
3
27
4
0
7
5
24
23
4
42
83
58

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
30
35
11
21
27
16
17
52
20
34
35
83
98
99
100
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
8
7
57
82
93
100
99
70
81
48
98
99
100
100
100
100
82
30

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
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
17
53
59
67
75

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
13
13
13
14
15
17
18
18
18
19
19
18
17
16
15
15
14
14
14
13
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

70
72
72
66
64
60
56
51
49
46
45
42
41
43
48
53
55
61
64
68
70
71
70
75

Pressure (mb)

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

Ozone (du)

307
306
304
303
304
303
302
298
294
291
285
282
281
278
275
270
265
261
259
258
255
255
255
254

Wednesday 17

Waning Crescent 20%

02:16

17:51

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: 06:38, Set: 19:08, Transit: 12:53. Moon - Rise: 02:16, Set: 17:51. Civil Dark: 19:41 - 06:05. Nautical Dark: 20:21 - 05:25. Astro Dark: 21:03 - 04:43

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
97
100
98
97
95
96
96
92
94
98
87
81
97
88
88

Low Clouds (% Sky Obscured)

91
90
100
86
97
100
100
100
100
94
100
75
80
81
91
92
86
77
93
84
76
97
78
83

Medium Clouds (% Sky Obscured)

100
100
99
100
100
99
92
85
90
89
24
93
47
95
95
51
37
34
61
38
3
33
25
37

High Clouds (% Sky Obscured)

30
20
2
2
2
0
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
5
7
3
9
9
9
6
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

Light Rain
Light Rain
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
None
None

Precipitation Probability (%)

87
95
95
95
95
77
49
34
26
26
7
7
2
0
11
21
8
2
1
0
0
1
0
0

Precipitation Amount (mm)

0.4
0.8
0.5
0.6
1
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
4
7
8
10
12
14
15
15
14
13
13
12
12
11
11
10
10
10
10
11
11
11
10

Chance of Frost

Temperature (°C)

13
14
14
15
16
16
17
17
18
18
18
18
19
19
18
18
18
18
18
18
18
18
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

79
83
87
89
90
92
86
85
88
90
90
90
90
89
92
92
92
93
92
90
92
89
88
88

Pressure (mb)

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

Ozone (du)

253
253
253
252
252
250
252
254
256
257
262
261
260
261
260
260
260
261
261
262
263
264
262
263

Thursday 18

Waning Crescent 12%

03:38

18:10

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 OK
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:40, Set: 19:05, Transit: 12:53. Moon - Rise: 03:38, Set: 18:10. Civil Dark: 19:39 - 06:06. Nautical Dark: 20:18 - 05:27. Astro Dark: 21:00 - 04:45

Total Clouds (% Sky Obscured)

81
87
93
75
66
68
84
88
83
71
61
67
45
22
58
67
81
82
100
100
88
96
100
78

Low Clouds (% Sky Obscured)

71
54
61
74
62
57
77
83
75
58
43
67
43
22
27
29
29
20
26
17
11
27
47
65

Medium Clouds (% Sky Obscured)

33
32
35
0
0
0
0
0
0
0
3
3
14
8
13
29
24
0
0
0
0
8
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
2
2
0
2
0
35
63
80
82
100
100
84
95
100
78

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
1
0
2
4
0
1
1
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)

10
10
10
12
12
10
11
13
14
14
14
15
14
13
11
10
9
8
7
6
5
4
4
4

Chance of Frost

Temperature (°C)

18
18
18
18
18
19
20
21
22
22
23
23
23
22
21
20
19
18
18
17
17
16
16
16

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
93
89
85
83
84
82
71
70
68
68
64
60
61
66
72
80
82
82
85
86
87
87
87

Pressure (mb)

1016
1017
1016
1017
1017
1018
1018
1018
1018
1019
1019
1018
1018
1018
1018
1019
1019
1020
1020
1020
1020
1019
1019
1019

Ozone (du)

263
262
261
260
260
260
258
257
257
257
255
254
255
254
254
254
254
255
254
253
253
253
254
256

Friday 19

Waning Crescent 6%

No Rise

18:24

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 OK
18 OK
19 OK
20 OK
21 Bad
22 OK
23 OK
00 Good
01 OK
02 Bad
03 Bad

Sun - Rise: 06:41, Set: 19:03, Transit: 12:52. Moon - Rise: No Rise, Set: 18:24. Civil Dark: 19:36 - 06:08. Nautical Dark: 20:16 - 05:28. Astro Dark: 20:57 - 04:47

Total Clouds (% Sky Obscured)

90
94
100
97
95
94
82
61
65
62
62
66
57
48
38
36
41
49
31
24
16
34
52
84

Low Clouds (% Sky Obscured)

53
44
32
36
40
44
39
35
30
28
29
28
19
10
0
0
0
0
0
0
0
5
11
16

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
31
4
4
35
40
48
38
0
0
5
0
0
0
9
14
21

High Clouds (% Sky Obscured)

90
94
100
92
84
75
51
28
15
15
20
25
26
27
24
36
39
48
31
24
11
34
52
83

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
16
17
16
17
18
19
20
22
23
22
22
22
21
20
19
17
18
17
17
16
16
16
16

Dew Point (°C)

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

Relative Humidity (%)

89
89
89
89
83
71
55
41
34
31
28
29
33
38
44
46
48
50
53
55
59
62
66
70

Pressure (mb)

1018
1018
1018
1017
1017
1017
1017
1017
1016
1016
1015
1015
1015
1015
1014
1014
1015
1015
1015
1015
1014
1014
1014
1013

Ozone (du)

256
257
257
257
258
258
258
259
260
260
261
262
262
262
262
262
260
259
260
261
263
262
263
264

Saturday 20

Waning Crescent 2%

04:56

18:36

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 OK
18 Good
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad

Sun - Rise: 06:43, Set: 19:01, Transit: 12:52. Moon - Rise: 04:56, Set: 18:36. Civil Dark: 19:34 - 06:10. Nautical Dark: 20:14 - 05:30. Astro Dark: 20:55 - 04:49

Total Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
68
33
0
87
77
67
64
62
74
81
83
85

Low Clouds (% Sky Obscured)

25
33
42
60
75
83
72
61
50
44
46
40
27
14
0
56
53
51
34
17
0
0
0
0

Medium Clouds (% Sky Obscured)

13
7
2
25
50
90
94
93
90
73
60
50
50
33
0
78
61
40
30
22
9
9
10
15

High Clouds (% Sky Obscured)

99
100
100
100
100
100
100
100
100
100
100
100
68
31
0
62
70
67
62
40
29
38
51
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
6
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
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

4
2
0
13
28
47
60
62
41
24
9
5
5
18
9
18
16
3
7
6
0
19
22
16

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

16
16
16
16
17
17
18
18
19
19
19
19
19
19
18
17
17
16
16
15
14
14
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
78
83
89
86
77
76
71
67
69
56
51
46
49
59
65
68
71
74
75
75
76
79
80

Pressure (mb)

1013
1013
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

264
264
265
265
265
265
265
267
267
267
266
267
268
269
270
274
279
284
289
291
292
294
297
299

Sunday 21

New Moon 0%

06:11

18:46

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 OK
22 OK
23 OK
00 Good
01 Good
02 Good
03 Good

Sun - Rise: 06:44, Set: 18:58, Transit: 12:51. Moon - Rise: 06:11, Set: 18:46. Civil Dark: 19:32 - 06:11. Nautical Dark: 20:11 - 05:32. Astro Dark: 20:52 - 04:51

Total Clouds (% Sky Obscured)

85
85
65
61
72
83
78
75
76
84
87
82
67
57
56
42
33
27
19
10
1
1
1
1

Low Clouds (% Sky Obscured)

2
4
5
15
27
40
41
42
43
39
35
26
28
28
29
19
10
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

15
20
15
29
44
66
46
26
6
7
9
11
9
9
0
3
4
4
3
3
1
1
1
0

High Clouds (% Sky Obscured)

55
60
60
60
60
60
70
75
76
84
85
82
57
27
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
Very 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
None
None
None

Precipitation Probability (%)

42
56
62
62
58
51
37
24
8
6
4
2
13
16
10
25
30
28
31
28
13
15
15
8

Precipitation Amount (mm)

0
0.3
0.4
0.3
0.2
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
2
2
3
4
5
6
6
7
8
8
8
7
6
4
3
2
1
1
2
3
3
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

13
13
13
13
12
12
13
13
13
13
16
15
14
14
14
14
11
12
13
12
12
12
11
11

Dew Point (°C)

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

Relative Humidity (%)

81
83
84
86
79
75
71
59
50
42
42
44
44
47
49
52
57
62
68
69
70
70
72
75

Pressure (mb)

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

Ozone (du)

302
305
307
309
311
312
314
314
315
315
317
318
320
323
325
328
328
329
330
329
329
328
328
328

Monday 22

Waxing Crescent 1%

07:24

18:56

04 OK
05 OK
06 OK
07 OK
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: 06:46, Set: 18:56, Transit: 12:51. Moon - Rise: 07:24, Set: 18:56. Civil Dark: 19:29 - 06:13. Nautical Dark: 20:09 - 05:34. Astro Dark: 20:50 - 04:53

Total Clouds (% Sky Obscured)

8
16
23
41
61
73
79
84
90
90
91
92
90
85
77
70
68
67
78
90
100

Low Clouds (% Sky Obscured)

8
16
23
41
61
73
78
82
86
82
79
77
82
84
77
67
50
35
50
65
78

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
4
4
5
6
6
6
6
9
15
24
32
42
52
59
56

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
3
4
31
58
85

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

Fog (%)

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

Precipitation Probability (%)

13
12
6
9
8
1
32
44
47
48
52
61
51
37
26
25
19
3
9
9
4

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
10
10
9
9
10
10
10
10
12
12
12
12
12
12
10
10
10
10
10

Dew Point (°C)

7
7
7
7
7
7
7
6
6
5
5
5
5
5
6
6
6
7
7
6
6

Relative Humidity (%)

80
78
80
80
75
70
65
59
53
48
48
48
48
52
56
59
62
65
69
66
63

Pressure (mb)

1016
1016
1017
1017
1018
1018
1019
1019
1019
1019
1019
1019
1019
1019
1020
1020
1020
1020
1021
1020
1020

Ozone (du)

329
328
328
328
328
329
330
332
335
337
335
333
331
329
328
326
326
326
325
325
325

Forecast for Wilmington, Kent, United Kingdom (51.43,0.21)

Generated: 16/09/25 04:04:00. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+1.00