Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 12

Waning Crescent 20%

04:51

15:02

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

Sun - Rise: 06:14, Set: 20:00, Transit: 13:07. Moon - Rise: 04:51, Set: 15:02. Civil Dark: 20:36 - 05:38. Nautical Dark: 21:17 - 04:55. Astro Dark: 22:06 - 04:06

Total Clouds (% Sky Obscured)

58
39
35
34
25
18
18
39
50
70
58
0
16
58
61
68
19
52
62
38
66
91
96
60

Low Clouds (% Sky Obscured)

7
11
24
29
22
16
17
31
50
63
58
0
16
58
61
56
0
25
28
31
31
10
33
25

Medium Clouds (% Sky Obscured)

0
0
0
0
1
1
0
8
1
9
1
0
0
0
1
53
19
46
48
14
3
1
72
31

High Clouds (% Sky Obscured)

0
0
0
0
4
4
0
0
0
0
0
0
0
0
0
0
0
0
0
1
12
30
25
0

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
6
7
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 (%)

22
4
1
0
0
0
0
0
0
0
0
0
1
1
19
29
42
43
42
42
34
26
3
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)

6
5
3
4
3
3
3
3
2
2
2
2
2
3
5
6
6
6
7
9
8
7
6
4

Chance of Frost

Temperature (°C)

6
5
4
4
4
4
3
3
3
2
2
3
6
8
9
10
11
12
12
11
11
10
10
8

Feels Like (°C)

4
4
3
3
3
3
3
2
2
2
2
3
6
8
9
9
10
9
9
9
7
9
9
8

Dew Point (°C)

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

Relative Humidity (%)

93
93
93
93
93
93
93
93
93
91
91
86
82
75
69
62
59
58
60
62
65
71
81
88

Pressure (mb)

1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1014

Ozone (du)

472
475
478
480
484
486
486
487
490
492
489
486
477
473
472
473
473
469
457
452
446
438
432
428

Monday 13

Waning Crescent 12%

05:04

16:23

21 OK
22 OK
23 OK
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
19 Bad
20 Bad

Sun - Rise: 06:11, Set: 20:02, Transit: 13:07. Moon - Rise: 05:04, Set: 16:23. Civil Dark: 20:37 - 05:36. Nautical Dark: 21:19 - 04:52. Astro Dark: 22:08 - 04:03

Total Clouds (% Sky Obscured)

9
20
18
50
63
81
82
87
78
100
100
100
98
97
96
99
100
100
100
100
100
97
97
97

Low Clouds (% Sky Obscured)

0
0
0
0
23
33
37
40
36
39
31
62
75
76
74
75
87
100
100
100
100
90
64
72

Medium Clouds (% Sky Obscured)

3
9
7
25
28
37
36
45
37
44
54
67
62
57
75
56
56
53
43
28
10
46
55
37

High Clouds (% Sky Obscured)

1
3
3
2
0
0
0
0
2
70
72
93
86
56
20
18
84
66
58
1
4
11
64
78

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
0

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
2
14
6
4
13
18
5
3
4
3
3
2
1
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)

4
4
4
4
4
4
4
4
4
5
5
6
9
11
12
12
12
13
14
13
13
12
11
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

6
5
5
4
4
3
4
4
4
5
5
5
6
6
6
7
9
10
9
9
9
9
10
10

Relative Humidity (%)

90
91
91
91
93
91
93
93
91
93
93
90
85
80
72
78
86
86
80
87
90
91
95
96

Pressure (mb)

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

Ozone (du)

427
426
422
416
410
402
399
397
392
390
386
381
376
372
369
366
365
361
359
358
357
355
353
352

Tuesday 14

Waning Crescent 6%

05:16

17:45

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
19 Bad
20 Bad

Sun - Rise: 06:09, Set: 20:04, Transit: 13:07. Moon - Rise: 05:16, Set: 17:45. Civil Dark: 20:39 - 05:34. Nautical Dark: 21:21 - 04:50. Astro Dark: 22:11 - 04:00

Total Clouds (% Sky Obscured)

81
84
99
100
97
100
100
100
100
100
99
100
100
100
100
100
99
95
87
81
100
77
78
72

Low Clouds (% Sky Obscured)

70
73
70
75
89
100
100
90
98
97
99
100
100
100
88
97
79
95
67
40
75
52
58
63

Medium Clouds (% Sky Obscured)

67
68
83
99
91
91
85
81
22
23
23
14
20
17
14
19
19
17
27
27
31
34
23
10

High Clouds (% Sky Obscured)

22
22
61
87
27
31
100
100
100
26
40
61
45
45
46
34
33
85
85
81
0
0
0
0

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
9
9
9
4
4
5
9
9
9
9

Fog (%)

0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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

Precipitation Probability (%)

0
1
1
4
5
2
5
22
35
41
58
47
24
26
28
36
58
69
64
48
40
58
36
26

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.3
0
0
0
0
0
0.3
0.4
0.3
0
0
0.3
0
0

Wind Speed/Direction (mph)

10
9
9
9
9
9
9
9
10
10
10
10
10
10
12
13
13
16
16
16
14
14
13
11

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
7
8
8
8
8
8
8
8
8
9
9
9
9
10
10
10
10
10
12
9
10
10

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
96
98
98
98
96
96
98
98
98
96
96
93
90
90
83
84
87
82
84
89
95

Pressure (mb)

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

Ozone (du)

351
351
348
349
348
346
345
344
342
342
342
340
340
343
344
347
354
358
360
361
368
384
393
393

Wednesday 15

Waning Crescent 2%

05:28

19:12

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
19 Bad
20 Bad

Sun - Rise: 06:07, Set: 20:05, Transit: 13:06. Moon - Rise: 05:28, Set: 19:12. Civil Dark: 20:41 - 05:31. Nautical Dark: 21:24 - 04:47. Astro Dark: 22:13 - 03:57

Total Clouds (% Sky Obscured)

66
56
46
39
53
64
67
72
72
83
82
65
53
51
57
65
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

65
56
46
39
53
58
60
56
54
52
54
53
53
50
51
48
43
42
48
52
60
68
63
54

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
10
18
27
25
21
19
33
40
55
57
54
60
80
93
86
94
93

High Clouds (% Sky Obscured)

0
0
0
0
2
4
6
4
2
12
8
2
0
32
57
65
100
100
100
100
99
98
72
45

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 (%)

7
3
1
0
0
0
0
0
0
0
0
0
1
1
12
1
3
1
8
9
13
11
2
5

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
7
7
6
6
5
5
4
4
5
5
6
7
9
10
10
10
10
11
11
11
10
9
8

Dew Point (°C)

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

Relative Humidity (%)

98
96
96
96
96
98
98
95
90
90
91
88
84
79
71
65
62
60
61
64
78
83
87
93

Pressure (mb)

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

Ozone (du)

395
392
392
391
389
385
382
382
381
384
386
388
390
391
390
388
384
381
378
375
374
373
373
372

Thursday 16

Waning Crescent 0%

05:42

20:42

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
19 Bad
20 Bad

Sun - Rise: 06:05, Set: 20:07, Transit: 13:06. Moon - Rise: 05:42, Set: 20:42. Civil Dark: 20:43 - 05:29. Nautical Dark: 21:26 - 04:44. Astro Dark: 22:16 - 03:53

Total Clouds (% Sky Obscured)

97
91
84
79
79
80
80
81
84
87
88
89
90
93
97
100
99
97
96
97
99
100
87
75

Low Clouds (% Sky Obscured)

46
47
54
57
57
55
59
57
56
50
50
49
48
47
45
44
43
42
42
33
24
16
11
5

Medium Clouds (% Sky Obscured)

97
91
75
66
46
47
47
55
69
68
52
49
78
80
82
82
66
48
28
40
53
79
87
75

High Clouds (% Sky Obscured)

14
16
18
15
16
17
32
32
26
30
45
54
57
70
85
100
97
93
91
91
87
83
64
46

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
2
0
0
0
0
0
0
0
0
1
13
23
32
30
30
27
24
18
13
5
4
3

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)

6
6
6
5
5
5
5
5
5
5
4
5
6
8
9
10
11
11
12
12
11
10
9
8

Chance of Frost

Temperature (°C)

10
9
9
9
8
8
8
8
8
8
8
9
10
11
13
14
14
15
15
15
14
14
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

95
95
96
96
95
95
95
94
94
94
94
91
90
84
81
78
74
73
71
70
74
78
82
83

Pressure (mb)

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

Ozone (du)

371
371
370
369
367
365
363
363
361
360
360
360
360
362
363
363
364
364
364
364
369
373
378
381

Friday 17

New Moon 2%

06:00

No Set

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
19 Bad
20 Bad

Sun - Rise: 06:03, Set: 20:09, Transit: 13:06. Moon - Rise: 06:00, Set: No Set. Civil Dark: 20:45 - 05:27. Nautical Dark: 21:28 - 04:42. Astro Dark: 22:19 - 03:50

Total Clouds (% Sky Obscured)

64
72
77
84
84
85
85
90
95
100
83
68
55
73
87
98
96
90
87
90
91
94
93
92

Low Clouds (% Sky Obscured)

0
0
0
2
3
8
13
27
33
42
31
22
14
36
50
65
54
42
31
47
64
83
70
57

Medium Clouds (% Sky Obscured)

64
72
77
75
58
40
26
21
19
17
17
23
30
51
71
91
90
86
80
82
81
81
88
91

High Clouds (% Sky Obscured)

26
20
19
21
13
7
0
32
65
97
70
41
17
35
50
68
62
55
49
38
24
25
23
20

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

0
0
0
0
0
0
0
4
9
12
15
17
19
29
37
42
44
47
52
53
54
53
51
45

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
85
88
93
95
95
93
91
91
95
95
93
89
87
84
82
79
82
83
86
89
89
90
91

Pressure (mb)

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

Ozone (du)

385
389
391
393
396
394
393
392
389
387
385
383
381
380
377
374
372
370
368
366
368
371
374
379

Saturday 18

Waxing Crescent 7%

06:25

22:16

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

Sun - Rise: 06:01, Set: 20:10, Transit: 13:06. Moon - Rise: 06:25, Set: 22:16. Civil Dark: 20:47 - 05:25. Nautical Dark: 21:30 - 04:39. Astro Dark: 22:21 - 03:47

Total Clouds (% Sky Obscured)

91
75
60
45
45
45
45
43
41
40
47
55
60
55
50
45
53
58
65
60
56
52

Low Clouds (% Sky Obscured)

44
44
43
43
44
45
45
43
41
39
44
48
52
41
33
25
38
51
62
45
24
3

Medium Clouds (% Sky Obscured)

91
75
60
45
35
16
0
0
0
0
5
11
15
13
13
19
16
13
9
14
18
27

High Clouds (% Sky Obscured)

14
9
5
0
0
0
0
0
1
6
8
11
17
12
7
1
5
9
13
13
14
19

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

Fog (%)

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

Precipitation Probability (%)

32
26
21
15
15
10
0
0
0
0
0
0
0
1
2
3
9
11
12
15
16
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
6
6
6
6
3
4
3
3
4
3
4
5
6
6
7
8
13
12
12
12
12

Dew Point (°C)

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

Relative Humidity (%)

93
93
94
96
96
94
96
96
96
96
96
90
85
80
72
65
60
60
59
58
64
71

Pressure (mb)

1019
1019
1020
1020
1020
1020
1020
1020
1021
1021
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022

Ozone (du)

385
391
396
400
405
402
398
394
396
397
399
399
400
400
399
399
398
398
398
399
397
396

Forecast for Swindon, Swindon, United Kingdom (51.56,-1.78)

Generated: 12/04/26 21:35:15. Forecast: 12/04/26 to 18/04/26. Timezone: UTC+1.00