Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 20%

00:50

17:19

11 OK
12 OK
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
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:34, Set: 19:05, Transit: 12:49. Moon - Rise: 00:50, Set: 17:19. Civil Dark: 19:39 - 06:01. Nautical Dark: 20:18 - 05:21. Astro Dark: 21:00 - 04:40

Total Clouds (% Sky Obscured)

15
21
53
65
100
100
100
100
78
100
63
66
100
95
100
98
100
100
100
100
97
98
100
96

Low Clouds (% Sky Obscured)

15
21
45
4
9
9
0
0
0
0
0
0
0
0
0
26
43
50
100
63
87
80
79
84

Medium Clouds (% Sky Obscured)

0
0
15
11
10
20
22
17
13
25
63
56
22
68
72
98
87
97
96
100
95
96
100
76

High Clouds (% Sky Obscured)

0
21
53
65
100
100
100
100
58
100
20
36
100
70
100
48
100
100
75
11
3
1
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
6
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
3
2
2
2
2
2
5
5
3
1
3
24
36
42
60
75
91
95
95
85
68

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.2
0.4
0.6
1.1
0.7
0.2
0.3

Wind Speed/Direction (mph)

20
19
19
18
18
17
14
14
13
11
11
10
10
10
8
8
8
8
8
5
6
10
14
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
47
44
41
39
41
45
51
56
66
75
77
79
80
84
84
81
81
86
90
93
92
92
89

Pressure (mb)

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

Ozone (du)

306
303
297
291
287
283
281
278
276
272
270
266
263
259
256
255
255
254
253
252
253
253
253
254

Wednesday 17

Waning Crescent 12%

02:13

17:46

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:35, Set: 19:03, Transit: 12:48. Moon - Rise: 02:13, Set: 17:46. Civil Dark: 19:36 - 06:02. Nautical Dark: 20:16 - 05:23. Astro Dark: 20:57 - 04:42

Total Clouds (% Sky Obscured)

99
100
97
98
100
100
98
81
79
72
64
73
74
77
63
81
76
62
87
75
52
66
46
56

Low Clouds (% Sky Obscured)

87
86
95
98
100
100
98
81
75
69
64
73
74
77
63
81
74
58
67
73
52
66
46
53

Medium Clouds (% Sky Obscured)

85
90
96
47
44
44
21
21
22
12
0
0
0
0
0
0
0
0
24
9
4
0
0
0

High 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

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
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

58
39
54
10
7
0
0
1
0
0
0
0
0
0
0
0
1
3
0
0
0
0
1
1

Precipitation Amount (mm)

0
0
0.4
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)

18
21
21
19
22
18
18
18
17
15
16
15
14
14
15
15
16
16
13
12
13
14
16
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
81
74
78
72
76
76
78
83
89
92
92
88
83
83
82
78
76
79
85
89
80
72
68

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019

Ozone (du)

255
256
257
259
261
264
263
263
263
263
262
262
261
262
261
262
262
262
261
261
260
260
260
260

Thursday 18

Waning Crescent 6%

03:34

18:05

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:37, Set: 19:01, Transit: 12:48. Moon - Rise: 03:34, Set: 18:05. Civil Dark: 19:34 - 06:04. Nautical Dark: 20:13 - 05:25. Astro Dark: 20:55 - 04:43

Total Clouds (% Sky Obscured)

86
58
52
49
50
66
74
45
54
84
71
91
58
64
39
98
100
71
100
95
76
76
64
44

Low Clouds (% Sky Obscured)

81
51
51
49
50
66
36
38
28
24
26
27
11
28
36
43
47
44
39
28
19
9
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
3
3
4
0
49
37
4
4
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
1
1
1
47
19
21
67
71
78
58
59
22
94
100
26
100
89
71
72
64
44

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
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)

18
18
17
18
18
17
16
13
10
9
8
8
8
7
7
7
6
6
6
5
6
6
8
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

18
18
18
19
20
20
20
19
19
17
17
17
15
16
16
16
15
15
15
15
14
16
17
17

Dew Point (°C)

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

Relative Humidity (%)

68
69
67
63
62
64
66
71
81
90
92
92
93
92
93
93
92
90
90
87
85
74
57
46

Pressure (mb)

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

Ozone (du)

260
260
260
259
258
257
257
258
258
258
258
258
257
256
255
255
254
254
254
254
254
256
257
257

Friday 19

Waning Crescent 6%

04:52

18:19

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

Sun - Rise: 06:39, Set: 18:59, Transit: 12:48. Moon - Rise: 04:52, Set: 18:19. Civil Dark: 19:32 - 06:06. Nautical Dark: 20:11 - 05:26. Astro Dark: 20:52 - 04:45

Total Clouds (% Sky Obscured)

29
6
5
4
8
7
6
3
7
3
15
47
73
99
100
100
100
95
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
7
0
0
0
0
0
0
0
6
16
18
36

Medium Clouds (% Sky Obscured)

0
0
0
4
8
7
6
3
7
2
15
47
73
50
22
13
6
9
23
48
63
66
23
45

High Clouds (% Sky Obscured)

29
6
4
4
8
7
6
0
1
1
6
36
67
96
97
99
100
95
100
100
100
100
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 (%)

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
1
0
3
3
6
31
28
28
30

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

40
36
34
33
32
34
39
44
45
47
48
45
44
46
47
49
57
65
69
71
74
76
72
64

Pressure (mb)

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

Ozone (du)

257
257
257
257
257
256
257
258
259
259
258
258
258
260
260
259
259
258
257
257
256
259
261
261

Saturday 20

Waning Crescent 2%

06:06

18:31

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:40, Set: 18:56, Transit: 12:47. Moon - Rise: 06:06, Set: 18:31. Civil Dark: 19:29 - 06:07. Nautical Dark: 20:09 - 05:28. Astro Dark: 20:49 - 04:47

Total Clouds (% Sky Obscured)

100
87
92
92
93
91
88
100
100
100
100
81
63
44
61
80
100
100
100
100
100
100
100
92

Low Clouds (% Sky Obscured)

35
44
37
30
24
26
28
46
33
28
20
16
22
11
8
5
2
10
16
23
30
39
47
49

Medium Clouds (% Sky Obscured)

21
17
32
43
48
49
57
100
78
53
35
35
40
44
44
49
47
32
16
0
0
0
0
0

High Clouds (% Sky Obscured)

100
87
92
91
89
91
88
96
100
100
100
75
50
25
50
75
100
100
100
100
100
100
100
91

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
3
9
5
3
4
6
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

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

Precipitation Probability (%)

31
28
58
74
75
68
49
37
35
52
46
53
95
95
80
53
27
24
20
17
23
26
28
28

Precipitation Amount (mm)

0
0
0.2
0.4
0.3
0.3
0
0
0
0
0
0.2
1
1.2
0.6
0.2
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

19
19
21
21
21
20
21
20
18
17
17
15
15
15
14
14
14
14
15
15
15
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

66
65
65
64
61
59
56
60
69
72
77
81
89
90
93
90
89
87
87
87
87
86
84
83

Pressure (mb)

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

Ozone (du)

262
260
259
260
260
262
262
262
261
261
260
261
262
262
263
265
267
268
269
270
271
272
272
273

Sunday 21

New Moon 0%

07:19

18:41

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
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:42, Set: 18:54, Transit: 12:47. Moon - Rise: 07:19, Set: 18:41. Civil Dark: 19:27 - 06:09. Nautical Dark: 20:06 - 05:30. Astro Dark: 20:47 - 04:49

Total Clouds (% Sky Obscured)

84
78
78
76
74
79
80
81
80
77
74
77
79
81
82
84
86
87
90
90
92
94
96
95

Low Clouds (% Sky Obscured)

51
53
55
60
63
60
56
53
51
52
54
59
65
70
69
67
66
67
69
72
75
78
81
77

Medium Clouds (% Sky Obscured)

0
0
0
0
0
3
8
12
9
9
9
28
47
66
46
34
23
33
39
50
37
25
18
20

High Clouds (% Sky Obscured)

80
67
49
42
40
35
35
43
42
22
0
0
0
0
0
2
2
1
4
0
1
2
3
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
8
8

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

Precipitation Probability (%)

29
30
30
26
22
27
30
30
40
43
38
54
61
59
57
54
50
59
60
51
58
52
39
40

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0.2
0.2
0
0.2
0
0
0

Wind Speed/Direction (mph)

14
14
16
14
13
13
14
14
14
14
14
14
13
13
12
11
11
14
16
19
22
22
22
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
12
12
13
12
11
11
11
11
9
9
10
10
9
10
10
11
13
12
13
13
10
9
7

Dew Point (°C)

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

Relative Humidity (%)

75
69
63
62
60
58
63
67
71
73
74
75
76
79
82
84
86
90
89
87
86
82
79
76

Pressure (mb)

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

Ozone (du)

275
277
279
282
284
287
289
292
294
297
300
303
304
305
306
308
310
312
313
315
316
316
316
316

Monday 22

Waxing Crescent 1%

08:31

18:52

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

Sun - Rise: 06:43, Set: 18:52, Transit: 12:47. Moon - Rise: 08:31, Set: 18:52. Civil Dark: 19:25 - 06:10. Nautical Dark: 20:04 - 05:31. Astro Dark: 20:44 - 04:51

Total Clouds (% Sky Obscured)

95
96
96
96
96
97
99
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

74
70
65
60
53
58
63
70
67
67
70
72
74
76
79
79
83
81
82
84

Medium Clouds (% Sky Obscured)

37
41
50
62
76
83
91
100
100
100
100
99
98
98
93
89
84
89
94
98

High Clouds (% Sky Obscured)

11
14
27
38
36
49
63
76
82
91
100
100
100
100
100
100
100
100
99
99

ISS Passover

Visibility (miles)

8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
8
7
8
9

Fog (%)

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

Precipitation Probability (%)

39
37
46
47
45
47
46
43
39
35
29
33
34
32
31
29
25
35
37
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

22
23
23
23
23
23
23
22
22
22
22
22
22
22
22
21
20
19
19
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
75
75
75
75
76
75
72
72
75
75
77
77
77
77
79
80
83
80
79

Pressure (mb)

1016
1016
1016
1016
1017
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1017
1017
1017
1017
1017

Ozone (du)

317
317
318
318
319
319
321
323
325
326
326
326
327
327
328
327
327
327
328
329

Forecast for Dover, Kent, United Kingdom (51.13,1.31)

Generated: 16/09/25 11:38:21. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+1.00