Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 23

Waxing Gibbous 83%

19:01

01:39

19 Good
20 OK
21 OK
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
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad

Sun - Rise: 06:20, Set: 20:21, Transit: 13:19. Moon - Rise: 19:01, Set: 01:39. Civil Dark: 20:56 - 05:45. Nautical Dark: 21:40 - 05:02. Astro Dark: 22:29 - 04:13

Total Clouds (% Sky Obscured)

12
21
27
64
100
100
100
100
100
56
84
92
93
87
74
83
95
89
59
99
65
48
58
81

Low Clouds (% Sky Obscured)

12
17
0
0
0
0
0
0
0
11
0
2
53
61
56
66
60
14
5
3
2
4
8
5

Medium Clouds (% Sky Obscured)

0
1
0
0
0
0
6
3
40
4
18
25
75
85
65
81
88
32
30
30
23
19
23
26

High Clouds (% Sky Obscured)

12
21
27
64
100
100
100
100
100
34
60
73
65
34
33
35
71
89
27
98
42
24
22
60

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)

9
6
4
3
5
5
6
6
7
10
12
12
13
14
16
19
21
21
22
22
21
21
20
19

Chance of Frost

Temperature (°C)

18
16
14
13
13
13
13
12
12
13
13
13
14
15
16
17
18
19
21
21
21
21
21
20

Feels Like (°C)

19
18
15
14
12
10
10
10
10
10
10
10
11
11
12
12
13
13
15
16
15
15
16
15

Dew Point (°C)

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

Relative Humidity (%)

48
66
73
74
71
70
70
72
79
84
90
90
87
76
71
63
55
48
41
36
35
33
35
41

Pressure (mb)

1023
1023
1023
1023
1022
1022
1022
1021
1021
1020
1019
1019
1019
1018
1018
1018
1017
1016
1016
1015
1015
1014
1013
1013

Ozone (du)

345
344
344
343
342
342
340
337
333
331
330
329
328
326
324
325
326
327
329
330
329
328
327
326

Monday 24

Waxing Gibbous 90%

19:01

02:50

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

Sun - Rise: 06:22, Set: 20:19, Transit: 13:19. Moon - Rise: 19:01, Set: 02:50. Civil Dark: 20:54 - 05:47. Nautical Dark: 21:37 - 05:04. Astro Dark: 22:26 - 04:15

Total Clouds (% Sky Obscured)

85
92
96
100
100
100
98
93
85
79
89
85
84
89
100
90
90
100
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

2
6
24
33
3
8
7
39
38
47
75
80
61
68
48
45
45
52
54
52
60
61
60
71

Medium Clouds (% Sky Obscured)

18
32
57
97
88
84
84
23
22
26
62
55
46
73
93
70
74
95
87
98
96
72
45
73

High Clouds (% Sky Obscured)

83
87
76
100
100
97
79
77
72
16
1
25
15
9
23
6
2
23
55
9
100
100
97
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
8
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
Light Rain
Very Light Rain
None
Light Rain
Very Light Rain
Light Rain
None
None
None
None
None
None
Very Light Rain
Light Rain
Light Rain

Precipitation Probability (%)

0
0
0
1
2
13
16
33
14
65
64
51
59
46
39
12
28
29
40
46
30
48
60
68

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
52
55
48
50
57
62
62
67
74
76
74
74
72
62
52
48
46
44
43
50
56
52
57

Pressure (mb)

1012
1012
1012
1012
1012
1012
1011
1011
1010
1010
1010
1010
1010
1010
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008

Ozone (du)

326
327
326
324
325
326
325
324
324
323
322
322
322
320
319
319
317
316
317
318
317
317
318
320

Tuesday 25

Waxing Gibbous 95%

19:25

04:04

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

Sun - Rise: 06:23, Set: 20:17, Transit: 13:19. Moon - Rise: 19:25, Set: 04:04. Civil Dark: 20:52 - 05:49. Nautical Dark: 21:35 - 05:06. Astro Dark: 22:23 - 04:18

Total Clouds (% Sky Obscured)

100
96
100
93
89
87
75
75
88
76
83
93
80
92
88
68
70
87
92
87
81
87
94
99

Low Clouds (% Sky Obscured)

69
78
81
81
89
83
66
66
69
69
75
78
65
68
40
40
36
37
42
50
40
37
35
35

Medium Clouds (% Sky Obscured)

96
90
82
51
24
7
2
1
0
0
0
6
0
4
6
10
28
19
12
48
12
56
90
78

High Clouds (% Sky Obscured)

62
55
100
42
1
0
40
19
60
25
51
27
19
43
45
5
2
22
40
44
49
66
83
97

ISS Passover

Visibility (miles)

9
9
8
3
9
9
9
9
9
3
0
1
0
0
9
9
9
9
9
7
7
7
7
7

Fog (%)

0
0
0
0
0
0
0
0
0
0
3
59
50
50
50
50
50
50
50
50
50
50
50
50

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 (%)

35
20
31
38
33
37
6
9
6
1
5
4
3
3
3
7
5
2
3
3
1
14
19
13

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)

11
10
9
8
7
7
7
6
6
6
5
6
6
7
10
11
13
15
16
15
14
13
13
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

63
78
89
95
96
96
96
96
98
98
98
98
98
96
89
81
69
60
59
66
68
65
67
76

Pressure (mb)

1008
1008
1009
1009
1009
1009
1009
1009
1009
1008
1009
1009
1009
1009
1010
1010
1009
1010
1009
1009
1009
1009
1008
1008

Ozone (du)

321
323
324
325
328
327
325
322
322
322
322
324
326
329
329
330
330
327
326
326
326
325
326
328

Wednesday 26

Waxing Gibbous 99%

19:44

05:20

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

Sun - Rise: 06:25, Set: 20:15, Transit: 13:19. Moon - Rise: 19:44, Set: 05:20. Civil Dark: 20:49 - 05:50. Nautical Dark: 21:32 - 05:07. Astro Dark: 22:20 - 04:20

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
95
100
100
100
100
100
100
100
100
100
88
93
94
65

Low Clouds (% Sky Obscured)

38
42
47
94
52
80
94
96
91
69
84
63
56
71
76
80
39
13
11
25
32
32
22
25

Medium Clouds (% Sky Obscured)

80
33
100
100
100
100
71
87
32
35
25
20
14
13
15
17
34
8
7
8
9
5
0
0

High Clouds (% Sky Obscured)

100
100
82
100
100
100
100
100
100
100
57
100
100
100
100
100
100
100
100
100
82
88
92
59

ISS Passover

Visibility (miles)

9
9
8
4
3
4
0
8
9
9
5
9
9
9
9
7
8
9
9
9
9
9
9
9

Fog (%)

50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50

Precipitation Type

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

Precipitation Probability (%)

47
74
95
95
95
95
95
95
95
95
95
95
95
95
66
64
64
69
67
68
73
63
62
69

Precipitation Amount (mm)

0
0.2
0.7
0.9
0.7
1.2
1.2
1.5
1.7
1.9
1.9
2.4
1.5
0.8
0
0.2
0.3
0.3
0.3
0.2
0.4
0
0
0.4

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
88
90
93
95
96
100
95
96
96
98
96
96
96
92
89
82
71
64
62
62
62
63
67

Pressure (mb)

1008
1007
1007
1007
1006
1005
1004
1004
1003
1003
1002
1002
1002
1002
1002
1002
1002
1002
1002
1002
1003
1003
1003
1003

Ozone (du)

328
327
329
327
327
329
334
335
338
340
340
340
341
341
341
341
341
341
342
343
344
345
346
346

Thursday 27

Waxing Gibbous 100%

19:59

06:35

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

Sun - Rise: 06:26, Set: 20:13, Transit: 13:18. Moon - Rise: 19:59, Set: 06:35. Civil Dark: 20:47 - 05:52. Nautical Dark: 21:30 - 05:09. Astro Dark: 22:17 - 04:22

Total Clouds (% Sky Obscured)

62
63
73
88
85
80
72
72
72
72
79
70
63
74
84
87
85
86
79
72
65
72
80
87

Low Clouds (% Sky Obscured)

22
21
25
24
24
23
24
26
36
31
30
25
11
6
6
9
16
19
27
33
39
34
30
25

Medium Clouds (% Sky Obscured)

0
0
0
0
0
5
5
5
5
4
4
3
11
22
35
54
73
86
61
36
11
21
28
35

High Clouds (% Sky Obscured)

62
63
73
88
85
80
72
72
67
71
79
69
60
54
50
60
70
86
75
58
35
52
64
78

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
9
9
9
9

Fog (%)

50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50

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 (%)

52
23
15
23
34
34
15
17
12
20
17
11
24
21
16
31
35
32
29
27
24
27
33
25

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
87
93
95
93
92
93
93
93
93
92
93
93
84
79
73
67
60
55
55
56
56
59
63

Pressure (mb)

1003
1003
1004
1004
1004
1004
1004
1004
1003
1003
1003
1003
1003
1004
1004
1004
1004
1004
1004
1004
1004
1004
1005
1005

Ozone (du)

346
346
348
349
349
348
347
347
347
347
347
347
347
347
346
346
345
344
343
341
339
337
334
331

Friday 28

Full Moon 99%

20:12

07:51

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

Sun - Rise: 06:28, Set: 20:10, Transit: 13:18. Moon - Rise: 20:12, Set: 07:51. Civil Dark: 20:45 - 05:53. Nautical Dark: 21:27 - 05:11. Astro Dark: 22:14 - 04:25

Total Clouds (% Sky Obscured)

86
83
81
86
93
100
100
100
100
100
100
100
99
99
99
91
85
82
82
83
81
76
72
67

Low Clouds (% Sky Obscured)

28
31
34
25
20
12
18
25
31
29
30
32
47
62
79
65
51
40
31
26
13
16
22
27

Medium Clouds (% Sky Obscured)

42
49
52
41
30
19
38
59
79
85
91
98
77
56
38
29
23
13
19
23
32
30
21
16

High Clouds (% Sky Obscured)

71
65
52
65
81
99
96
94
93
84
80
73
71
68
66
66
65
65
65
69
77
73
70
66

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 (%)

50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50

Precipitation Type

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

Precipitation Probability (%)

25
29
25
31
24
7
15
19
19
29
34
37
54
69
83
88
82
69
53
37
16
21
20
29

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

12
11
11
12
12
12
11
11
11
11
11
11
11
11
12
14
15
16
18
16
17
20
19
17

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
73
81
87
86
86
84
89
90
95
93
90
89
84
80
76
68
62
55
56
58
59
65
72

Pressure (mb)

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

Ozone (du)

328
326
325
323
323
323
323
323
323
323
322
321
320
320
320
320
319
317
315
314
313
312
309
307

Saturday 29

Waning Gibbous 96%

20:25

09:08

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
11 Bad
12 Bad

Sun - Rise: 06:29, Set: 20:08, Transit: 13:18. Moon - Rise: 20:25, Set: 09:08. Civil Dark: 20:43 - 05:55. Nautical Dark: 21:25 - 05:13. Astro Dark: 22:11 - 04:27

Total Clouds (% Sky Obscured)

66
66
70
75
79
85
90
95
100
99
99
99
100
100
100
98
96
94

Low Clouds (% Sky Obscured)

23
20
16
26
38
49
66
80
96
80
64
48
36
26
16
24
35
42

Medium Clouds (% Sky Obscured)

13
14
15
10
4
1
2
4
5
15
25
35
54
77
100
98
96
93

High Clouds (% Sky Obscured)

66
66
70
75
76
75
84
92
100
99
99
98
98
98
98
76
59
40

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9

Fog (%)

50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50

Precipitation Type

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

Precipitation Probability (%)

22
18
6
14
15
10
17
19
17
30
38
45
66
80
91
79
63
41

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

16
15
14
13
12
12
11
10
9
9
8
7
6
6
6
6
8
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
13
12
11
10
11
10
11
11
12
12
12
11
10
10
10

Relative Humidity (%)

79
82
85
87
82
76
72
73
73
74
79
84
92
82
73
65
63
61

Pressure (mb)

1009
1009
1009
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010

Ozone (du)

305
305
305
305
304
304
303
303
302
302
301
300
299
299
299
299
300
301

Forecast for Upton, Cornwall, United Kingdom (50.54,-4.43)

Generated: 23/08/26 19:08:02. Forecast: 23/08/26 to 29/08/26. Timezone: UTC+1.00