Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 9

Waning Gibbous 49%

03:57

11:33

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
11 Bad

Sun - Rise: 06:37, Set: 20:06, Transit: 13:23. Moon - Rise: 03:57, Set: 11:33. Civil Dark: 20:40 - 06:04. Nautical Dark: 21:21 - 05:22. Astro Dark: 22:06 - 04:37

Total Clouds (% Sky Obscured)

53
53
67
52
100
100
100
100
44
53
67
74
100
100
70
97
100
99
81
75
97
95
98
100

Low Clouds (% Sky Obscured)

37
59
32
15
21
13
34
51
38
34
42
45
51
36
18
10
18
11
0
0
7
31
41
51

Medium Clouds (% Sky Obscured)

73
35
1
22
23
2
3
3
17
7
12
41
70
95
69
81
100
99
81
75
63
87
97
100

High Clouds (% Sky Obscured)

100
100
75
100
100
100
100
100
44
53
67
74
100
100
70
97
100
32
11
70
94
89
88
100

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
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

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
1
5
16
15
8

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)

16
20
24
22
24
24
22
21
19
20
20
18
18
16
14
11
8
5
4
5
8
11
14
18

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
4
4
3
2
3
3
2
3
2
2
2
2
3
4
4
5
5
4
3
3
3
3

Dew Point (°C)

9
8
6
5
4
4
3
3
2
2
1
1
1
1
0
0
-0
-0
-1
0
1
2
4
5

Relative Humidity (%)

84
78
72
69
65
66
64
62
58
58
58
58
58
57
57
57
55
55
56
59
65
65
72
73

Pressure (mb)

1023
1023
1023
1024
1024
1024
1024
1025
1025
1025
1026
1026
1026
1026
1025
1024
1024
1023
1023
1023
1022
1021
1021
1020

Ozone (du)

346
355
363
362
361
358
357
355
349
348
347
346
345
343
342
340
338
338
337
338
338
338
339
339

Friday 10

Third Quarter 39%

04:24

No Set

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 OK
07 Bad
08 Bad
09 Bad
10 OK
11 Bad

Sun - Rise: 06:35, Set: 20:08, Transit: 13:23. Moon - Rise: 04:24, Set: No Set. Civil Dark: 20:42 - 06:01. Nautical Dark: 21:23 - 05:20. Astro Dark: 22:08 - 04:34

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
97
100
100
100
71
67
47
35
45
37
27
6
24

Low Clouds (% Sky Obscured)

52
52
40
51
58
59
52
60
97
100
100
94
72
62
67
38
42
38
35
40
37
27
6
24

Medium Clouds (% Sky Obscured)

100
100
100
100
100
66
51
79
59
67
67
94
100
100
67
30
23
1
3
0
0
2
2
0

High Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
33
56
13
21
6
2
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
7
4
2
9
5
1
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
None
None
None
None
None
None
None
None
None
Light Rain
Light Rain
Light Rain
Light Rain
None
Very Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

8
2
1
26
35
41
33
7
13
33
87
95
95
95
63
63
37
25
2
6
15
19
28
20

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.4
1.3
1.5
0.6
0
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
23
25
24
24
24
24
25
27
26
26
25
24
14
11
20
24
23
25
24
26
28
29
30

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

2
3
2
2
2
2
2
3
3
3
3
4
3
4
3
4
-1
-1
-1
1
-2
-1
-1
-1

Dew Point (°C)

5
5
5
5
6
6
7
8
8
9
9
9
10
8
7
7
7
4
2
-0
-1
0
1
1

Relative Humidity (%)

72
70
72
72
76
78
81
84
85
87
88
90
93
95
87
88
94
82
68
58
54
57
60
60

Pressure (mb)

1018
1017
1015
1014
1013
1011
1010
1009
1008
1007
1006
1005
1004
1004
1005
1005
1005
1006
1006
1006
1006
1007
1007
1007

Ozone (du)

338
335
335
334
335
340
342
344
344
345
343
345
346
350
357
362
367
376
385
389
394
412
423
432

Saturday 11

Waning Crescent 30%

04:45

12:47

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
11 Bad

Sun - Rise: 06:33, Set: 20:09, Transit: 13:22. Moon - Rise: 04:45, Set: 12:47. Civil Dark: 20:43 - 05:59. Nautical Dark: 21:25 - 05:17. Astro Dark: 22:10 - 04:32

Total Clouds (% Sky Obscured)

3
49
99
65
55
46
100
79
63
47
47
55
93
79
94
84
84
79
48
60
46
60
56
34

Low Clouds (% Sky Obscured)

3
34
44
42
41
43
35
56
40
25
41
41
69
65
85
75
74
69
48
53
46
47
45
34

Medium Clouds (% Sky Obscured)

0
19
69
25
23
30
100
54
37
35
2
17
48
29
54
30
26
18
0
19
0
18
15
4

High Clouds (% Sky Obscured)

0
0
0
0
0
25
8
3
3
3
0
0
0
0
0
0
0
0
0
0
3
3
3
3

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

12
37
46
48
50
75
63
44
49
50
38
38
56
61
60
53
45
29
15
10
10
5
12
25

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

31
33
33
34
34
33
32
30
31
29
29
28
28
28
27
26
24
23
22
21
20
20
19
20

Chance of Frost

Temperature (°C)

9
10
9
9
9
9
9
9
9
9
9
9
9
9
8
8
8
8
8
8
9
9
9
10

Feels Like (°C)

1
1
1
-0
-2
-1
-2
-1
0
0
-1
0
1
1
1
1
1
1
2
3
4
5
4
5

Dew Point (°C)

1
2
3
4
5
6
7
6
6
6
6
6
5
5
5
4
4
3
2
2
2
2
2
2

Relative Humidity (%)

57
58
66
70
75
80
88
82
82
82
80
81
77
78
78
77
73
69
67
65
63
61
58
58

Pressure (mb)

1006
1006
1006
1006
1005
1005
1005
1005
1006
1007
1008
1008
1008
1009
1009
1010
1010
1010
1011
1011
1012
1012
1013
1013

Ozone (du)

428
427
434
443
449
449
448
442
439
434
433
433
433
432
434
433
433
434
438
443
448
452
455
457

Sunday 12

Waning Crescent 20%

05:02

14:03

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
11 Bad

Sun - Rise: 06:31, Set: 20:11, Transit: 13:22. Moon - Rise: 05:02, Set: 14:03. Civil Dark: 20:45 - 05:57. Nautical Dark: 21:27 - 05:15. Astro Dark: 22:12 - 04:29

Total Clouds (% Sky Obscured)

35
63
51
53
72
82
90
94
96
99
97
96
94
96
98
100
94
95
94
48
39
34
45
61

Low Clouds (% Sky Obscured)

31
42
43
45
53
53
51
47
44
40
44
47
51
52
53
54
65
75
83
48
39
34
45
51

Medium Clouds (% Sky Obscured)

6
63
50
53
65
50
85
86
91
97
92
86
81
87
94
100
89
88
85
21
11
1
1
57

High Clouds (% Sky Obscured)

0
0
0
0
0
17
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
8
3

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

31
39
62
66
56
49
44
32
46
48
51
61
71
66
73
72
76
76
76
75
58
45
31
33

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

21
21
21
20
19
18
17
15
13
13
11
11
10
10
10
10
9
8
7
7
6
4
4
4

Chance of Frost

Temperature (°C)

10
10
10
10
10
9
9
9
9
8
8
8
8
8
8
8
8
8
8
8
8
9
9
10

Feels Like (°C)

4
5
3
4
4
4
4
3
4
4
4
4
3
3
3
3
3
3
3
3
5
6
6
7

Dew Point (°C)

2
3
5
6
6
5
5
5
5
5
5
5
6
6
6
6
5
5
5
5
6
5
5
5

Relative Humidity (%)

59
61
68
74
78
76
77
77
78
81
82
82
84
84
85
85
82
84
84
84
82
78
77
74

Pressure (mb)

1013
1013
1013
1013
1012
1012
1012
1012
1012
1013
1013
1012
1012
1011
1011
1010
1010
1010
1009
1009
1010
1010
1010
1010

Ozone (du)

457
457
457
460
462
462
462
462
466
468
466
467
463
459
459
455
449
441
435
430
427
425
422
418

Monday 13

Waning Crescent 12%

05:17

15:21

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

Sun - Rise: 06:29, Set: 20:13, Transit: 13:22. Moon - Rise: 05:17, Set: 15:21. Civil Dark: 20:47 - 05:55. Nautical Dark: 21:29 - 05:13. Astro Dark: 22:15 - 04:26

Total Clouds (% Sky Obscured)

67
68
62
50
50
49
30
23
26
24
30
36
41
41
51
60
61
66
71
74
95
100
100
100

Low Clouds (% Sky Obscured)

48
44
51
47
49
48
30
23
26
24
19
10
0
12
25
38
43
49
51
54
57
61
64
77

Medium Clouds (% Sky Obscured)

32
0
0
0
0
0
0
0
0
0
0
0
0
15
29
44
46
40
37
41
45
100
99
99

High Clouds (% Sky Obscured)

45
45
55
17
0
0
0
0
0
0
23
36
41
41
39
18
17
16
14
39
73
98
75
89

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 (%)

21
21
22
19
16
4
2
0
0
0
0
0
0
0
0
0
0
0
0
0
3
8
17
32

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)

5
7
7
8
10
9
9
8
7
5
3
5
6
7
8
9
9
10
11
13
14
16
17
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
6
5
6
6
6
5
5
5
5
5
4
4
4
4
4
5
5
5
6
6
6
6
6

Relative Humidity (%)

74
73
72
74
76
76
73
74
74
75
75
73
74
75
74
75
77
77
78
78
77
73
72
69

Pressure (mb)

1010
1010
1010
1011
1011
1011
1011
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014
1015
1015
1015
1016
1016
1017
1017

Ozone (du)

413
408
406
403
398
392
389
388
385
381
379
376
371
366
362
361
361
359
357
355
353
351
349
348

Tuesday 14

Waning Crescent 6%

05:30

16:39

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
11 Bad

Sun - Rise: 06:27, Set: 20:14, Transit: 13:22. Moon - Rise: 05:30, Set: 16:39. Civil Dark: 20:48 - 05:53. Nautical Dark: 21:30 - 05:10. Astro Dark: 22:17 - 04:23

Total Clouds (% Sky Obscured)

99
100
100
100
100
99
99
99
100
100
100
100
100
99
97
96
91
86
86
83
85
87
86
88

Low Clouds (% Sky Obscured)

86
93
97
100
98
95
93
87
87
91
95
97
99
94
85
72
70
71
70
60
48
39
38
37

Medium Clouds (% Sky Obscured)

99
97
96
93
89
85
83
88
91
93
83
71
60
56
51
45
29
18
8
25
42
63
55
45

High Clouds (% Sky Obscured)

85
78
75
73
90
88
98
99
100
100
70
39
17
26
23
19
16
13
8
7
6
5
7
8

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

52
95
95
91
72
52
25
15
8
5
19
22
27
41
51
60
47
31
2
1
0
0
2
4

Precipitation Amount (mm)

0
0.7
0.8
0.8
0.4
0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

17
17
17
18
20
20
19
18
19
20
19
21
21
23
21
19
18
17
15
14
14
15
16
17

Chance of Frost

Temperature (°C)

11
11
12
12
12
12
12
12
11
11
11
11
11
11
11
12
12
12
12
12
12
12
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
65
65
63
63
66
67
71
72
72
75
75
77
79
84
90
96
96
95
93
92
90
87
87

Pressure (mb)

1017
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1017
1017
1017
1017
1017
1017
1017
1017
1017
1018
1018
1018
1018

Ozone (du)

347
345
343
340
338
336
335
333
331
330
329
328
328
327
330
332
335
336
336
337
337
338
339
339

Wednesday 15

Waning Crescent 6%

05:44

18:00

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
11 Bad

Sun - Rise: 06:25, Set: 20:16, Transit: 13:21. Moon - Rise: 05:44, Set: 18:00. Civil Dark: 20:50 - 05:50. Nautical Dark: 21:32 - 05:08. Astro Dark: 22:19 - 04:20

Total Clouds (% Sky Obscured)

89
91
90
89
79
68
58
72
86
100
100
100
97
90
84
65
57
58
62
59
56
58
70
82

Low Clouds (% Sky Obscured)

35
45
53
59
55
50
45
41
36
31
37
42
38
37
37
40
45
49
54
51
44
40
45
55

Medium Clouds (% Sky Obscured)

36
39
45
48
41
37
36
49
65
70
57
51
46
42
37
38
52
38
37
44
55
58
60
59

High Clouds (% Sky Obscured)

5
6
12
15
26
30
22
41
67
98
100
100
97
90
84
65
57
58
62
59
56
58
63
45

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

3
26
37
43
46
42
35
27
17
0
2
0
0
6
7
5
14
18
24
35
43
54
61
48

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
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
13
13
13
12
12
12
12
12
12
11
11
11
11
11
11
11
11
11
11
11
11
11
12

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
86
89
92
95
95
95
96
96
95
95
93
95
95
95
95
95
95
93
93
91
90
87
86

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

340
341
342
343
345
346
347
348
349
350
351
355
359
362
365
367
370
370
371
371
370
369
367
366

Forecast for Marazion, Cornwall, United Kingdom (50.13,-5.46)

Generated: 09/04/26 20:58:55. Forecast: 09/04/26 to 15/04/26. Timezone: UTC+1.00