Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 27

Waxing Gibbous 100%

20:01

06:39

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
06 Bad

Sun - Rise: 06:30, Set: 20:15, Transit: 13:22. Moon - Rise: 20:01, Set: 06:39. Civil Dark: 20:49 - 05:56. Nautical Dark: 21:31 - 05:14. Astro Dark: 22:18 - 04:28

Total Clouds (% Sky Obscured)

90
62
58
97
100
92
95
100
85
99
78
60
81
82
98
93
73
76
100
68
70
81
82
85

Low Clouds (% Sky Obscured)

48
57
52
52
49
59
55
47
37
41
43
33
35
47
21
16
24
28
29
46
44
42
57
50

Medium Clouds (% Sky Obscured)

0
0
0
0
5
68
77
64
56
52
18
3
4
4
0
24
56
52
52
42
27
43
42
44

High Clouds (% Sky Obscured)

0
4
6
96
100
46
68
97
61
77
43
48
63
77
97
90
63
71
100
1
31
71
25
10

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

6
4
10
15
6
14
26
18
11
17
24
25
6
3
2
5
5
6
6
10
36
25
27
22

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
93
83
76
67
61
59
62
59
62
66
69
71
81
89
90
90
92
92
92
92
92
90
90

Pressure (mb)

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

Ozone (du)

344
343
342
342
344
346
347
349
349
349
349
349
351
352
352
352
352
351
351
349
345
342
338
334

Friday 28

Full Moon 99%

20:15

No Set

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
06 Bad

Sun - Rise: 06:31, Set: 20:13, Transit: 13:21. Moon - Rise: 20:15, Set: No Set. Civil Dark: 20:47 - 05:57. Nautical Dark: 21:29 - 05:16. Astro Dark: 22:15 - 04:30

Total Clouds (% Sky Obscured)

90
94
87
96
96
88
91
88
82
71
55
51
55
66
61
99
100
100
100
100
100
100
100
57

Low Clouds (% Sky Obscured)

44
52
64
88
90
65
81
76
68
70
55
51
47
48
39
38
50
48
70
100
87
90
80
57

Medium Clouds (% Sky Obscured)

48
85
86
91
79
84
68
10
11
4
3
4
4
1
0
14
10
100
100
100
100
100
0
9

High Clouds (% Sky Obscured)

21
25
4
6
14
39
0
0
0
0
0
0
23
38
47
95
100
100
99
100
55
55
52
1

ISS Passover

Visibility (miles)

9
9
9
9
5
3
3
9
9
5
9
9
9
9
9
7
7
9
4
3
2
3
3
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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Moderate Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

14
14
19
54
73
83
81
73
36
27
18
20
18
21
26
21
20
44
73
89
95
95
73
54

Precipitation Amount (mm)

0
0
0
0
0.4
0.5
0.5
0.5
0
0
0
0
0
0
0
0
0
0
0.3
0.4
1.9
2.7
0.2
0.3

Wind Speed/Direction (mph)

13
15
17
18
18
18
17
18
18
17
17
16
14
12
10
9
11
14
15
16
18
21
18
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

87
81
76
81
89
93
93
90
90
88
86
86
88
92
95
95
95
93
95
95
92
93
96
93

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1008
1007
1006
1005
1004
1003

Ozone (du)

333
330
329
326
324
323
321
321
320
318
315
310
309
307
305
303
301
298
296
299
301
306
310
313

Saturday 29

Waning Gibbous 96%

20:28

07:54

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
06 Bad

Sun - Rise: 06:33, Set: 20:11, Transit: 13:21. Moon - Rise: 20:28, Set: 07:54. Civil Dark: 20:44 - 05:59. Nautical Dark: 21:26 - 05:18. Astro Dark: 22:12 - 04:32

Total Clouds (% Sky Obscured)

100
97
100
100
94
91
82
86
88
76
67
52
76
50
80
100
85
66
86
90
94
96
98
100

Low Clouds (% Sky Obscured)

65
61
58
81
74
87
80
85
83
66
59
44
55
36
30
27
36
33
29
29
56
33
28
30

Medium Clouds (% Sky Obscured)

65
37
99
100
16
11
12
14
14
8
4
0
2
0
0
0
9
1
9
84
86
91
90
82

High Clouds (% Sky Obscured)

100
48
55
54
5
0
0
0
0
2
0
2
2
12
51
100
68
35
57
52
42
58
79
100

ISS Passover

Visibility (miles)

8
8
9
9
6
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

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

Precipitation Probability (%)

61
44
50
95
95
41
23
25
21
17
19
6
17
21
11
10
3
3
8
18
23
26
22
18

Precipitation Amount (mm)

0.5
0
0
0.7
0.7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

18
20
22
25
27
30
28
28
26
25
24
21
19
18
16
15
14
14
13
11
10
8
9
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
88
85
89
90
89
85
81
75
77
81
82
86
87
87
90
90
90
92
92
92
92
90

Pressure (mb)

1003
1003
1003
1003
1002
1002
1003
1004
1005
1006
1006
1007
1007
1008
1009
1009
1009
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

308
308
307
308
309
310
314
312
310
311
311
309
309
308
308
309
309
309
309
310
311
311
312
313

Sunday 30

Waning Gibbous 91%

20:41

09:10

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 OK
04 Bad
05 Bad
06 Bad

Sun - Rise: 06:34, Set: 20:08, Transit: 13:21. Moon - Rise: 20:41, Set: 09:10. Civil Dark: 20:42 - 06:01. Nautical Dark: 21:24 - 05:19. Astro Dark: 22:09 - 04:34

Total Clouds (% Sky Obscured)

99
98
66
67
67
80
95
89
95
91
83
73
53
46
46
72
57
56
42
35
25
38
51
65

Low Clouds (% Sky Obscured)

32
37
36
31
28
27
23
24
23
59
68
35
12
18
14
14
16
16
15
15
15
16
14
13

Medium Clouds (% Sky Obscured)

89
75
22
15
14
15
34
24
59
61
10
43
4
7
23
4
16
5
0
0
0
0
0
0

High Clouds (% Sky Obscured)

95
90
41
47
46
60
88
80
86
78
57
30
8
2
2
52
27
38
26
13
0
21
47
65

ISS Passover

Visibility (miles)

9
9
5
9
9
6
9
9
9
3
2
3
9
9
9
6
9
4
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
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

37
60
52
41
39
27
42
63
95
95
95
95
95
70
68
55
36
32
6
12
5
15
27
28

Precipitation Amount (mm)

0
0.3
0
0
0
0
0
0.2
0.8
1.2
1.8
1.6
0.7
0.3
0.4
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

7
8
10
13
15
16
17
19
19
21
19
15
16
18
17
14
12
14
15
15
15
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
86
79
72
65
63
63
64
63
63
78
92
85
87
86
87
89
90
90
89
90
90
90
90

Pressure (mb)

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

Ozone (du)

314
312
314
317
322
326
330
330
330
327
329
332
335
336
337
338
340
332
329
327
327
324
324
321

Monday 31

Waning Gibbous 83%

20:56

10:29

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
06 Bad

Sun - Rise: 06:36, Set: 20:06, Transit: 13:20. Moon - Rise: 20:56, Set: 10:29. Civil Dark: 20:40 - 06:02. Nautical Dark: 21:21 - 05:21. Astro Dark: 22:06 - 04:36

Total Clouds (% Sky Obscured)

83
96
100
100
100
99
89
83
97
100
100
100
94
92
87
89
91
93
81
66
51
45
40
34

Low Clouds (% Sky Obscured)

42
11
11
16
55
22
18
20
25
26
38
57
39
22
5
20
35
51
38
25
12
12
12
11

Medium Clouds (% Sky Obscured)

0
0
0
4
4
87
4
6
15
9
5
79
86
92
87
89
91
93
74
48
26
19
12
7

High Clouds (% Sky Obscured)

69
96
100
100
100
95
80
67
94
100
100
100
30
50
55
61
61
65
49
26
2
2
1
1

ISS Passover

Visibility (miles)

9
9
9
9
9
8
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
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 (%)

28
27
13
26
25
29
15
12
8
25
26
21
22
20
19
20
20
21
33
38
42
47
45
47

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

14
14
14
14
14
14
14
13
12
13
13
13
12
12
12
12
12
12
12
12
13
13
13
14

Relative Humidity (%)

92
89
86
83
81
79
76
70
69
71
74
81
74
77
77
78
78
78
77
80
85
89
89
90

Pressure (mb)

1012
1012
1013
1014
1014
1015
1015
1016
1016
1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1016

Ozone (du)

317
316
314
314
315
316
316
316
315
314
313
312
312
314
315
317
319
320
322
323
323
324
325
325

Tuesday 1

Waning Gibbous 74%

21:15

11:50

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
06 Bad

Sun - Rise: 06:37, Set: 20:04, Transit: 13:20. Moon - Rise: 21:15, Set: 11:50. Civil Dark: 20:38 - 06:04. Nautical Dark: 21:19 - 05:23. Astro Dark: 22:04 - 04:39

Total Clouds (% Sky Obscured)

44
54
68
72
74
73
75
72
73
77
81
85
89
95
99
100
100
100
90
80
68
62
56
51

Low Clouds (% Sky Obscured)

20
29
38
30
25
17
21
26
30
27
23
22
19
18
17
13
9
7
12
14
17
12
5
6

Medium Clouds (% Sky Obscured)

8
11
12
8
5
0
1
2
3
8
10
14
10
11
12
47
75
100
80
61
42
27
14
1

High Clouds (% Sky Obscured)

1
2
3
17
32
50
55
51
56
66
74
78
87
92
98
96
91
82
55
32
10
13
17
21

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

45
41
40
40
34
31
41
47
53
50
48
47
42
40
41
54
64
73
73
81
90
77
63
43

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

89
82
77
71
71
71
70
75
80
85
83
82
81
82
83
85
85
83
83
83
85
85
85
85

Pressure (mb)

1016
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1016
1016
1017
1017

Ozone (du)

326
327
328
329
328
328
328
328
328
329
330
330
331
332
333
334
331
329
327
322
318
314
311
308

Wednesday 2

Waning Gibbous 63%

21:40

13:14

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

Sun - Rise: 06:39, Set: 20:02, Transit: 13:20. Moon - Rise: 21:40, Set: 13:14. Civil Dark: 20:36 - 06:06. Nautical Dark: 21:16 - 05:25. Astro Dark: 22:01 - 04:41

Total Clouds (% Sky Obscured)

60
70
79
70
61
54
66
78
91
86
82
77
77
76
76
77
79
81

Low Clouds (% Sky Obscured)

5
4
3
14
25
36
40
44
48
34
21
7
5
4
2
3
6
11

Medium Clouds (% Sky Obscured)

2
3
4
5
6
6
7
8
9
13
18
23
31
39
47
31
19
5

High Clouds (% Sky Obscured)

36
46
49
31
12
3
31
59
90
61
39
16
15
13
11
12
14
18

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

30
17
1
1
1
2
6
9
12
13
13
5
9
5
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

85
75
67
60
62
62
63
65
69
73
76
80
83
88
89
93
95
93

Pressure (mb)

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

Ozone (du)

305
304
302
301
300
299
298
298
297
296
296
296
297
297
297
297
296
295

Forecast for Constantine, Cornwall, United Kingdom (50.12,-5.17)

Generated: 27/08/26 07:38:02. Forecast: 27/08/26 to 02/09/26. Timezone: UTC+1.00