Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 12

Waning Crescent 20%

04:51

15:02

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

Sun - Rise: 06:14, Set: 19:59, Transit: 13:07. Moon - Rise: 04:51, Set: 15:02. Civil Dark: 20:34 - 05:38. Nautical Dark: 21:17 - 04:55. Astro Dark: 22:06 - 04:06

Total Clouds (% Sky Obscured)

100
88
78
47
31
5
0
0
23
8
12
31
51
64
65
95
53
20
51
62
66
79
82
85

Low Clouds (% Sky Obscured)

64
49
35
42
28
5
0
0
23
8
12
31
51
64
65
95
53
20
51
58
31
5
42
50

Medium Clouds (% Sky Obscured)

68
19
9
3
2
0
0
0
1
8
9
1
1
1
1
1
1
1
6
20
66
79
80
83

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
23
8
12
2
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

4
8
5
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
9
5
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

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

Precipitation Probability (%)

73
57
54
18
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
28
45
53
70
72

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

13
12
12
10
7
6
5
4
4
3
3
3
2
2
2
2
2
2
3
5
6
6
6
8

Chance of Frost

Temperature (°C)

10
10
9
8
7
6
6
5
5
4
4
3
3
3
2
3
3
5
8
10
11
11
12
12

Feels Like (°C)

6
6
7
6
6
5
5
4
3
2
1
1
3
2
2
2
3
5
8
8
8
8
9
9

Dew Point (°C)

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

Relative Humidity (%)

77
80
85
87
90
93
94
93
93
94
94
93
93
91
91
89
86
82
75
69
66
64
65
68

Pressure (mb)

1010
1010
1011
1011
1012
1012
1013
1013
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1013
1013
1013

Ozone (du)

449
454
458
461
466
469
472
472
472
476
478
479
482
486
487
485
479
474
471
471
472
470
466
456

Monday 13

Waning Crescent 12%

05:04

No Set

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

Sun - Rise: 06:11, Set: 20:00, Transit: 13:07. Moon - Rise: 05:04, Set: No Set. Civil Dark: 20:36 - 05:36. Nautical Dark: 21:19 - 04:52. Astro Dark: 22:08 - 04:03

Total Clouds (% Sky Obscured)

57
54
49
25
43
8
0
0
0
0
32
30
63
64
73
72
100
100
100
100
98
95
100
96

Low Clouds (% Sky Obscured)

43
54
49
25
43
8
0
0
0
0
16
30
42
44
37
43
14
11
8
60
55
51
85
89

Medium Clouds (% Sky Obscured)

57
6
3
5
2
0
0
0
0
0
13
0
23
22
32
31
24
73
77
52
62
58
59
52

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
3
1
4
62
85
90
96
47
47
69
36

ISS Passover

Visibility (miles)

5
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

Very Light Rain
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
44
42
10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
7
10
7

Precipitation Amount (mm)

0.2
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)

8
8
7
6
4
4
4
4
4
4
4
3
4
3
3
4
6
9
12
12
13
13
14
13

Chance of Frost

Temperature (°C)

11
11
10
10
9
7
6
6
5
5
4
4
4
4
4
5
7
8
10
11
12
12
12
11

Feels Like (°C)

8
8
9
10
8
6
5
5
4
4
4
3
3
3
4
4
6
6
7
7
8
8
8
7

Dew Point (°C)

6
6
7
8
7
6
5
5
4
3
3
3
2
3
3
4
6
7
7
9
10
10
9
9

Relative Humidity (%)

72
73
80
85
90
91
91
93
93
91
91
93
91
93
93
94
93
90
84
84
84
86
83
87

Pressure (mb)

1013
1013
1014
1014
1014
1015
1016
1016
1016
1016
1016
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018

Ozone (du)

449
441
432
426
422
420
421
419
413
406
399
393
392
389
387
384
381
377
376
372
371
368
366
363

Tuesday 14

Waning Crescent 6%

05:16

16:23

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:09, Set: 20:02, Transit: 13:07. Moon - Rise: 05:16, Set: 16:23. Civil Dark: 20:37 - 05:34. Nautical Dark: 21:21 - 04:50. Astro Dark: 22:11 - 04:00

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
98
98
100
100
100
100
100
100
100
100
100
87
86
75

Low Clouds (% Sky Obscured)

100
100
100
92
81
68
72
72
74
81
84
92
98
90
99
100
100
100
100
100
100
74
70
54

Medium Clouds (% Sky Obscured)

77
72
68
58
57
33
71
72
71
75
94
22
24
18
23
77
25
26
26
24
35
32
26
20

High Clouds (% Sky Obscured)

46
45
69
99
100
100
100
100
100
100
66
45
100
100
100
100
99
99
62
98
100
57
27
0

ISS Passover

Visibility (miles)

9
9
1
0
1
2
0
1
0
0
0
0
0
0
0
0
2
0
9
9
9
5
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 (%)

4
1
1
0
0
1
3
30
45
44
30
5
5
7
20
34
42
33
30
29
36
35
47
55

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
95
96
96
98
98
98
98
98
98
98
98
98
98
100
98
96
98
95
93
92
89
76
76

Pressure (mb)

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

Ozone (du)

363
361
359
357
356
354
352
351
349
347
346
345
344
342
340
339
338
338
340
342
347
356
357
360

Wednesday 15

Waning Crescent 2%

05:28

17:45

16 Bad
17 Bad
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 OK
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

Sun - Rise: 06:07, Set: 20:04, Transit: 13:06. Moon - Rise: 05:28, Set: 17:45. Civil Dark: 20:39 - 05:31. Nautical Dark: 21:24 - 04:47. Astro Dark: 22:13 - 03:57

Total Clouds (% Sky Obscured)

92
58
68
55
63
58
46
44
43
48
55
70
89
95
99
55
59
60
74
87
96
100
100
100

Low Clouds (% Sky Obscured)

60
58
68
55
63
58
46
44
43
48
55
68
73
74
74
47
51
57
53
48
46
51
55
62

Medium Clouds (% Sky Obscured)

81
25
30
25
13
0
0
0
0
0
0
0
13
26
46
31
14
0
21
42
63
45
29
90

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
1
1
0
0
32
64
85
55
28
0
26
55
86
100
100
100

ISS Passover

Visibility (miles)

8
8
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

56
48
32
24
18
1
1
1
0
0
0
0
0
0
0
0
1
0
1
2
3
0
3
7

Precipitation Amount (mm)

0
0.2
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

12
11
12
11
11
9
8
8
7
6
6
6
5
4
5
5
8
8
9
10
10
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

80
83
86
89
93
95
95
95
95
96
96
98
96
90
85
84
85
84
76
70
65
62
61
62

Pressure (mb)

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

Ozone (du)

365
374
383
384
382
376
374
375
376
377
378
383
385
387
390
391
389
385
385
385
381
377
373
371

Thursday 16

Waning Crescent 0%

05:42

19:12

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:05, Set: 20:05, Transit: 13:06. Moon - Rise: 05:42, Set: 19:12. Civil Dark: 20:41 - 05:29. Nautical Dark: 21:26 - 04:44. Astro Dark: 22:16 - 03:53

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
99
96
92
88
85
83
80
98
96
93
94
97
100
98
97
95

Low Clouds (% Sky Obscured)

46
40
30
30
20
13
22
33
39
49
56
64
64
64
64
54
55
57
56
55
54
52
50
48

Medium Clouds (% Sky Obscured)

88
79
78
67
89
68
70
63
60
67
83
67
66
72
69
98
96
93
94
97
97
89
81
73

High Clouds (% Sky Obscured)

100
100
100
100
100
100
98
95
93
74
54
25
20
20
20
81
60
42
57
78
100
70
40
15

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 (%)

3
10
13
7
0
0
0
0
0
0
0
0
0
0
0
0
1
0
18
25
30
30
27
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)

12
11
9
8
6
5
4
3
3
3
4
4
4
4
4
5
5
7
8
9
10
10
10
11

Chance of Frost

Temperature (°C)

14
14
13
12
11
10
9
9
8
8
8
7
7
7
8
8
9
10
11
12
13
14
14
14

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
70
79
84
90
93
93
95
96
96
96
93
93
94
94
93
88
85
81
80
76
74
73
73

Pressure (mb)

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

Ozone (du)

370
366
363
362
361
362
362
362
361
358
356
354
353
353
356
358
359
360
360
361
362
363
364
364

Friday 17

New Moon 2%

06:00

20:42

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
12 Bad
13 Bad
14 Bad
15 Bad

Sun - Rise: 06:03, Set: 20:07, Transit: 13:06. Moon - Rise: 06:00, Set: 20:42. Civil Dark: 20:43 - 05:27. Nautical Dark: 21:28 - 04:42. Astro Dark: 22:19 - 03:50

Total Clouds (% Sky Obscured)

97
98
100
100
100
100
100
100
100
95
91
88
90
89
88
75
61
58
72
89
93
95
97
99

Low Clouds (% Sky Obscured)

51
56
57
55
50
45
40
39
39
33
34
34
45
55
62
63
61
58
72
74
67
72
76
81

Medium Clouds (% Sky Obscured)

82
90
98
82
62
44
43
42
41
32
24
21
17
21
20
15
10
10
10
11
11
26
36
46

High Clouds (% Sky Obscured)

47
79
95
92
94
97
98
100
100
75
50
24
50
75
88
73
61
58
61
75
79
65
43
10

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 (%)

23
20
12
7
2
0
1
1
0
1
1
0
3
4
4
5
5
4
10
16
21
25
30
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)

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

Chance of Frost

Temperature (°C)

15
14
14
13
12
10
9
8
8
8
7
7
7
7
7
7
9
10
12
13
13
14
14
14

Feels Like (°C)

11
12
12
13
10
9
10
8
8
6
4
5
4
4
4
4
6
7
8
9
9
10
13
13

Dew Point (°C)

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

Relative Humidity (%)

71
74
76
80
84
88
93
91
93
93
94
94
94
94
94
94
90
84
80
75
70
66
66
64

Pressure (mb)

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

Ozone (du)

365
367
370
372
373
374
375
380
385
390
393
396
398
397
397
396
391
387
383
380
378
375
372
370

Saturday 18

Waxing Crescent 7%

06:25

22:16

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
12 Bad

Sun - Rise: 06:01, Set: 20:09, Transit: 13:06. Moon - Rise: 06:25, Set: 22:16. Civil Dark: 20:45 - 05:25. Nautical Dark: 21:30 - 04:39. Astro Dark: 22:21 - 03:47

Total Clouds (% Sky Obscured)

99
99
100
98
95
93
94
95
97
84
70
53
68
83
98
98
98
96
97
99
100

Low Clouds (% Sky Obscured)

75
69
64
64
62
63
62
64
66
67
60
53
47
34
22
14
7
9
11
12
10

Medium Clouds (% Sky Obscured)

49
53
56
42
28
19
38
49
63
55
49
41
32
24
13
10
5
0
0
0
0

High Clouds (% Sky Obscured)

39
67
97
73
51
28
29
30
26
7
2
0
0
4
5
5
10
15
47
75
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
9

Fog (%)

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

Precipitation Probability (%)

32
27
23
38
46
51
46
44
39
46
41
33
26
18
11
11
7
1
2
1
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

64
70
76
83
83
82
82
84
84
84
84
84
87
85
85
87
82
80
75
72
69

Pressure (mb)

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

Ozone (du)

367
366
364
362
360
358
355
355
355
355
355
355
355
355
355
355
355
354
354
353
352

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

Generated: 12/04/26 16:21:07. Forecast: 12/04/26 to 18/04/26. Timezone: UTC+1.00