Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Gibbous 100%

19:49

06:25

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 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 06:16, Set: 20:03, Transit: 13:09. Moon - Rise: 19:49, Set: 06:25. Civil Dark: 20:37 - 05:42. Nautical Dark: 21:20 - 04:59. Astro Dark: 22:08 - 04:12

Total Clouds (% Sky Obscured)

98
77
71
74
68
88
97
100
100
98
100
73
43
51
34
34
46
48
44
79
97
75
71
70

Low Clouds (% Sky Obscured)

26
29
20
35
11
19
16
30
28
27
22
34
35
23
29
31
37
40
30
36
39
11
28
25

Medium Clouds (% Sky Obscured)

33
45
47
67
39
2
40
4
45
45
20
20
4
0
0
0
0
0
6
6
4
2
4
30

High Clouds (% Sky Obscured)

3
52
46
67
27
77
94
100
100
94
100
38
4
11
0
0
1
1
2
42
95
68
71
70

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
3
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
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

14
6
2
1
0
0
0
6
29
47
25
6
4
0
4
9
17
3
12
42
38
8
13
12

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.3
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
23
22
21
21
20
20
19
18
17
16
16
16
16
16
16
16
15
15
16
17
18
18

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
61
48
47
51
52
60
65
71
82
89
92
92
93
93
93
95
93
93
93
93
83
65
57

Pressure (mb)

1008
1008
1008
1008
1009
1009
1008
1008
1008
1008
1009
1009
1008
1008
1009
1008
1008
1008
1008
1007
1008
1008
1008
1008

Ozone (du)

336
340
341
342
343
341
341
344
343
343
343
346
346
347
349
347
346
346
344
343
344
345
346
348

Friday 28

Full Moon 99%

20:02

07:40

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: 06:18, Set: 20:01, Transit: 13:08. Moon - Rise: 20:02, Set: 07:40. Civil Dark: 20:35 - 05:43. Nautical Dark: 21:18 - 05:01. Astro Dark: 22:05 - 04:14

Total Clouds (% Sky Obscured)

51
48
98
37
84
74
100
86
88
92
84
59
71
72
86
100
100
100
100
100
100
100
89
65

Low Clouds (% Sky Obscured)

23
18
23
19
15
19
51
70
71
65
68
47
58
63
79
73
63
59
60
89
84
99
78
58

Medium Clouds (% Sky Obscured)

6
10
0
4
8
74
98
86
17
13
31
49
4
4
6
8
96
100
100
100
100
0
0
8

High Clouds (% Sky Obscured)

11
4
98
2
29
40
1
0
0
0
2
5
20
18
24
100
100
100
100
87
70
12
18
0

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

11
11
9
11
12
21
38
66
52
53
53
36
29
14
14
11
5
18
56
95
95
95
95
67

Precipitation Amount (mm)

0
0
0
0
0
0
0
0.4
0.2
0.2
0.3
0
0
0
0
0
0
0
0
0.8
1.4
0.5
0
0.4

Wind Speed/Direction (mph)

17
18
20
21
22
22
21
20
15
15
13
13
12
11
10
10
10
11
11
13
12
15
17
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
10
11
11
12
12
12
15
17
16
16
16
15
15
14
14
14
14
14
15
16
16
16

Relative Humidity (%)

52
48
50
53
55
59
61
65
80
90
89
90
93
90
89
87
85
85
83
83
88
92
93
86

Pressure (mb)

1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1008
1008
1007
1007
1006
1006
1005
1005

Ozone (du)

345
341
339
336
332
330
327
323
320
316
313
309
307
304
303
302
300
298
299
302
305
312
313
311

Saturday 29

Waning Gibbous 96%

20:15

08:57

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 OK
18 Bad
19 OK
20 OK
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: 06:19, Set: 19:59, Transit: 13:08. Moon - Rise: 20:15, Set: 08:57. Civil Dark: 20:33 - 05:45. Nautical Dark: 21:15 - 05:03. Astro Dark: 22:02 - 04:17

Total Clouds (% Sky Obscured)

71
65
98
96
60
39
24
31
28
35
39
78
69
93
100
100
100
99
100
100
100
100
100
96

Low Clouds (% Sky Obscured)

58
62
64
60
60
39
24
31
28
35
39
54
47
35
64
65
50
29
25
27
29
31
83
77

Medium Clouds (% Sky Obscured)

7
5
8
8
7
3
0
0
0
0
0
0
0
0
0
0
0
0
5
12
14
85
77
44

High Clouds (% Sky Obscured)

70
45
0
5
60
3
0
0
0
1
1
78
68
82
100
99
100
96
100
100
100
100
100
88

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

Precipitation Probability (%)

40
27
40
73
49
23
16
11
4
10
13
14
11
4
1
3
3
4
6
10
16
22
28
41

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

21
24
25
24
26
26
24
22
20
17
14
12
11
10
9
7
6
6
5
4
4
7
10
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
68
64
80
68
61
64
67
67
69
77
82
85
82
72
82
86
79
79
89
92
81
72
68

Pressure (mb)

1005
1005
1005
1005
1005
1005
1006
1006
1007
1008
1008
1009
1009
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011

Ozone (du)

311
311
308
307
307
307
306
305
305
304
304
304
303
303
303
303
303
303
304
304
304
305
305
307

Sunday 30

Waning Gibbous 91%

20:28

10:16

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: 06:21, Set: 19:56, Transit: 13:08. Moon - Rise: 20:28, Set: 10:16. Civil Dark: 20:31 - 05:47. Nautical Dark: 21:13 - 05:05. Astro Dark: 21:59 - 04:19

Total Clouds (% Sky Obscured)

92
89
92
96
86
66
100
84
90
42
37
52
63
67
60
49
39
39
40
37
41
45
50
69

Low Clouds (% Sky Obscured)

73
70
65
53
51
44
47
52
74
38
37
41
46
54
55
49
39
39
40
37
38
31
23
21

Medium Clouds (% Sky Obscured)

20
14
91
0
0
1
10
48
10
0
3
10
12
11
5
4
0
0
0
0
0
0
0
4

High Clouds (% Sky Obscured)

74
63
77
87
66
65
100
81
82
24
7
9
8
8
5
2
0
0
0
0
13
26
38
58

ISS Passover

Visibility (miles)

8
9
7
7
9
5
7
9
9
4
9
7
6
4
5
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
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

36
36
48
50
57
73
78
95
95
75
44
59
64
55
52
46
37
27
18
6
2
1
0
3

Precipitation Amount (mm)

0
0
0.2
0.3
0.3
0.4
0.4
1
0.9
0.4
0
0.2
0.3
0.3
0.3
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

68
63
57
55
54
56
58
65
79
87
87
89
89
87
86
87
87
89
90
93
92
87
78
68

Pressure (mb)

1011
1010
1010
1010
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1010
1010
1011
1012
1013
1014

Ozone (du)

308
308
309
313
319
325
327
326
327
328
329
333
335
335
336
338
339
338
337
335
330
326
322
320

Monday 31

Waning Gibbous 83%

20:42

No Set

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: 06:22, Set: 19:54, Transit: 13:08. Moon - Rise: 20:42, Set: No Set. Civil Dark: 20:28 - 05:48. Nautical Dark: 21:10 - 05:07. Astro Dark: 21:56 - 04:21

Total Clouds (% Sky Obscured)

94
97
71
82
100
100
100
100
99
98
98
98
99
99
98
97
96
96
97
98
88
76
65
43

Low Clouds (% Sky Obscured)

16
12
14
46
20
21
19
20
14
15
15
21
26
28
36
41
47
45
36
24
6
6
3
0

Medium Clouds (% Sky Obscured)

3
0
0
0
0
2
7
100
99
98
98
98
87
99
98
97
96
96
97
98
85
70
55
37

High Clouds (% Sky Obscured)

85
89
62
48
100
99
98
98
80
62
45
60
79
92
81
74
80
88
90
88
77
61
44
26

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 (%)

8
12
6
14
11
12
11
7
6
3
1
4
9
16
30
33
26
25
28
29
32
39
40
36

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

60
55
57
57
53
54
53
57
60
67
75
80
80
82
82
83
84
84
86
84
83
73
65
57

Pressure (mb)

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

Ozone (du)

318
318
317
315
314
312
310
310
310
311
312
313
313
317
318
319
320
321
322
324
325
326
327
328

Tuesday 1

Waning Gibbous 74%

21:00

11:38

11 Bad
12 Bad
13 OK
14 OK
15 OK
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: 06:24, Set: 19:52, Transit: 13:07. Moon - Rise: 21:00, Set: 11:38. Civil Dark: 20:26 - 05:50. Nautical Dark: 21:08 - 05:09. Astro Dark: 21:53 - 04:23

Total Clouds (% Sky Obscured)

24
11
18
25
28
33
29
29
46
68
89
93
96
100
85
73
62
54
53
53
53
54
55
62

Low Clouds (% Sky Obscured)

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

Medium Clouds (% Sky Obscured)

18
0
0
0
0
0
0
0
0
0
0
26
47
72
66
61
58
36
20
7
7
7
7
13

High Clouds (% Sky Obscured)

12
0
16
25
28
33
29
29
46
68
89
93
96
100
78
59
38
42
43
48
41
40
37
43

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

36
36
27
20
14
25
30
31
30
27
23
32
43
62
74
81
80
82
79
69
54
47
46
41

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
15
16
16
17
18
15
13
13
11
10
9
10
12
14
14
13
13
11
10
8
8
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
53
51
53
54
56
59
64
69
72
76
79
81
83
85
87
89
89
90
89
90
78
67
58

Pressure (mb)

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

Ozone (du)

328
328
327
326
325
324
323
322
320
322
323
324
325
326
327
325
322
319
317
315
312
310
307
305

Wednesday 2

Waning Gibbous 63%

21:24

13:03

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: 06:25, Set: 19:50, Transit: 13:07. Moon - Rise: 21:24, Set: 13:03. Civil Dark: 20:24 - 05:52. Nautical Dark: 21:05 - 05:10. Astro Dark: 21:50 - 04:26

Total Clouds (% Sky Obscured)

71
78
76
74
75
78
81
82
80
80
81
82
87
90
90
89
89
81
72
62

Low Clouds (% Sky Obscured)

0
0
2
4
6
31
56
80
80
80
81
82
87
90
90
89
89
69
39
9

Medium Clouds (% Sky Obscured)

20
26
29
33
37
47
59
70
79
80
81
82
85
79
85
89
89
63
33
3

High Clouds (% Sky Obscured)

49
55
54
53
51
49
46
47
39
36
38
39
40
41
44
46
52
46
44
34

ISS Passover

Visibility (miles)

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

Precipitation Type

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 (%)

35
27
18
7
0
10
14
15
32
41
46
52
52
50
42
35
31
26
19
12

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
52
50
54
61
67
71
77
84
85
88
89
90
93
93
90
90
87
86
85

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1015
1015
1015
1016
1016

Ozone (du)

304
303
302
301
299
298
298
298
298
298
297
297
297
297
298
300
302
305
308
311

Forecast for Swanage, Dorset, United Kingdom (50.61,-1.96)

Generated: 27/08/26 11:48:15. Forecast: 27/08/26 to 02/09/26. Timezone: UTC+1.00