Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 13

Waning Crescent 20%

05:00

14:57

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

Sun - Rise: 06:09, Set: 19:56, Transit: 13:03. Moon - Rise: 05:00, Set: 14:57. Civil Dark: 20:32 - 05:34. Nautical Dark: 21:16 - 04:47. Astro Dark: 22:05 - 03:58

Total Clouds (% Sky Obscured)

39
53
59
67
48
29
72
68
69
64
65
74
60
36
1
5
19
14
28
0
0
42
49
80

Low Clouds (% Sky Obscured)

32
53
59
0
16
24
50
45
56
44
42
54
45
36
0
0
0
14
28
0
0
0
0
0

Medium Clouds (% Sky Obscured)

39
47
46
42
22
6
20
20
69
64
53
20
33
3
1
5
8
0
0
0
0
13
17
25

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
1
2
0
0
0
0
0

ISS Passover

Visibility (miles)

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

Fog (%)

0
7
9
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
1
20
37
42
44
51
42
26
30
2
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)

2
1
0
2
2
3
4
5
5
5
5
4
4
5
6
4
3
3
3
3
3
4
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
91
91
86
82
77
69
61
58
56
55
57
57
64
74
78
81
85
88
91
91
91
91
91

Pressure (mb)

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

Ozone (du)

486
490
493
492
489
481
471
468
468
472
471
461
455
449
441
434
429
425
424
422
418
410
403
400

Tuesday 14

Waning Crescent 12%

05:00

16:18

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:07, Set: 19:58, Transit: 13:02. Moon - Rise: 05:00, Set: 16:18. Civil Dark: 20:34 - 05:31. Nautical Dark: 21:18 - 04:45. Astro Dark: 22:07 - 03:55

Total Clouds (% Sky Obscured)

77
83
77
80
96
95
95
96
96
98
96
99
94
94
100
100
98
97
92
100
99
100
100
100

Low Clouds (% Sky Obscured)

21
23
26
24
56
51
79
79
85
98
89
90
87
73
77
76
80
80
68
71
82
95
92
70

Medium Clouds (% Sky Obscured)

24
27
27
29
33
35
39
42
49
50
43
56
33
39
48
42
62
66
77
89
98
99
98
75

High Clouds (% Sky Obscured)

0
0
2
3
35
64
69
30
62
33
37
8
4
9
76
49
71
89
64
87
54
99
54
90

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
5
6
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
Light Rain
Light Rain
Light Rain
None

Precipitation Probability (%)

0
0
0
1
3
3
18
27
23
8
14
13
2
1
11
30
7
3
8
45
74
78
66
31

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.6
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
3
4
6
7
7
7
8
8
7
7
7
7
8
8
7
7
6
6
6
7
7
7
8

Dew Point (°C)

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

Relative Humidity (%)

91
93
91
87
82
76
69
60
59
60
60
63
72
77
78
80
84
83
82
85
91
96
98
100

Pressure (mb)

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

Ozone (du)

396
393
391
389
385
381
378
374
368
366
365
362
360
359
357
355
354
352
351
353
351
350
349
347

Wednesday 15

Waning Crescent 6%

05:11

17:41

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
21 OK
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:05, Set: 20:00, Transit: 13:02. Moon - Rise: 05:11, Set: 17:41. Civil Dark: 20:35 - 05:29. Nautical Dark: 21:20 - 04:42. Astro Dark: 22:10 - 03:51

Total Clouds (% Sky Obscured)

100
100
100
100
99
100
100
100
100
99
99
98
90
71
48
53
31
49
45
61
62
63
61
64

Low Clouds (% Sky Obscured)

98
90
100
94
92
100
100
80
100
91
63
70
52
68
48
53
31
49
45
61
58
57
57
59

Medium Clouds (% Sky Obscured)

92
85
40
42
29
20
26
27
23
24
19
14
52
0
0
0
0
0
0
0
0
0
0
2

High Clouds (% Sky Obscured)

100
81
69
62
87
100
100
100
100
35
17
1
0
0
0
0
0
0
0
0
2
6
6
4

ISS Passover

Visibility (miles)

0
0
0
0
0
0
0
0
4
9
6
8
5
5
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
Very Light Rain
Light Rain
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

39
32
23
28
34
14
4
23
20
25
13
51
67
37
7
2
1
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0.2
0.5
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
98
98
98
98
96
96
96
96
96
95
92
86
90
92
95
95
96
98
98
96
98
96
96

Pressure (mb)

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

Ozone (du)

347
346
344
341
341
341
342
344
348
353
357
358
362
375
384
392
391
382
381
381
380
380
380
381

Thursday 16

Waning Crescent 2%

05:24

19:07

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:03, Set: 20:01, Transit: 13:02. Moon - Rise: 05:24, Set: 19:07. Civil Dark: 20:37 - 05:27. Nautical Dark: 21:22 - 04:39. Astro Dark: 22:13 - 03:48

Total Clouds (% Sky Obscured)

68
71
77
75
71
73
65
74
81
78
91
99
98
98
98
99
100
96
91
87
81
76
75
83

Low Clouds (% Sky Obscured)

61
63
77
75
71
57
40
36
46
57
62
59
51
45
44
31
26
22
20
17
21
25
29
42

Medium Clouds (% Sky Obscured)

4
6
4
2
0
16
38
48
50
43
45
39
39
85
98
99
100
95
89
75
54
43
75
79

High Clouds (% Sky Obscured)

2
1
0
0
0
18
32
46
55
63
76
72
54
45
51
47
45
40
35
35
32
25
22
20

ISS Passover

Visibility (miles)

9
6
1
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
2
3
8
0
0
0
1
6
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

100
100
98
91
83
79
70
63
59
56
56
55
58
69
75
81
88
91
95
95
95
93
93
93

Pressure (mb)

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

Ozone (du)

382
382
383
383
383
386
387
382
378
374
371
369
368
365
362
361
363
363
363
362
362
361
360
360

Friday 17

New Moon 0%

05:38

20:38

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 06:00, Set: 20:03, Transit: 13:02. Moon - Rise: 05:38, Set: 20:38. Civil Dark: 20:39 - 05:24. Nautical Dark: 21:24 - 04:37. Astro Dark: 22:15 - 03:45

Total Clouds (% Sky Obscured)

92
100
98
96
93
92
92
91
93
94
94
92
90
87
100
100
100
99
98
96
97
98
100
87

Low Clouds (% Sky Obscured)

60
76
96
92
86
64
51
37
48
59
68
67
67
67
6
3
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

81
86
70
57
49
56
68
79
72
48
71
40
44
40
29
57
84
78
73
67
57
49
47
50

High Clouds (% Sky Obscured)

22
20
24
23
27
41
54
67
66
65
64
64
64
62
100
100
100
95
90
86
88
91
93
71

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
1
0
0
4
14
19
22
21
21
15
18
14
5
4
1
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
93
90
85
82
80
76
70
68
66
65
72
69
75
82
83
87
88
88
90
90
91
90
90

Pressure (mb)

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

Ozone (du)

359
357
356
356
358
362
364
366
368
366
364
361
360
359
357
357
356
356
356
357
358
359
360
361

Saturday 18

Waxing Crescent 2%

05:55

22:12

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:58, Set: 20:05, Transit: 13:02. Moon - Rise: 05:55, Set: 22:12. Civil Dark: 20:41 - 05:22. Nautical Dark: 21:26 - 04:34. Astro Dark: 22:18 - 03:42

Total Clouds (% Sky Obscured)

75
63
71
80
88
91
93
96
90
84
78
85
93
100
85
70
55
49
44
42
39
40
38
44

Low Clouds (% Sky Obscured)

0
0
3
6
9
19
29
39
48
57
66
49
25
5
18
36
55
49
44
42
39
37
35
41

Medium Clouds (% Sky Obscured)

49
47
58
70
84
69
54
42
33
25
10
7
6
5
12
21
30
48
44
42
39
40
38
44

High Clouds (% Sky Obscured)

50
30
34
34
34
44
57
70
57
43
30
52
73
94
72
57
40
35
35
40
39
40
38
44

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
8
8
9
9
9
9
9
9
9
8
8
6
5
3

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
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
17
22
22
31
38
45
41
37
39
33
28
19
25
27
31
36
45
56
54

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
0.2

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

8
7
7
8
9
9
10
11
11
16
16
15
15
15
15
12
12
12
11
10
9
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

90
88
88
84
80
75
71
67
64
67
71
74
75
78
78
83
86
90
91
91
95
95
95
96

Pressure (mb)

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

Ozone (du)

363
365
367
369
372
374
377
380
383
379
374
370
369
367
366
367
368
369
370
372
373
376
378
380

Sunday 19

Waxing Crescent 7%

06:20

23:45

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
21 Bad
22 Bad
23 Bad
00 Bad

Sun - Rise: 05:56, Set: 20:06, Transit: 13:01. Moon - Rise: 06:20, Set: 23:45. Civil Dark: 20:43 - 05:20. Nautical Dark: 21:28 - 04:32. Astro Dark: 22:21 - 03:38

Total Clouds (% Sky Obscured)

53
61
69
75
83
83
83
81
85
91
97
92
87
81
72
51
47
45
47
47

Low Clouds (% Sky Obscured)

45
56
65
75
82
73
64
55
51
48
50
59
69
79
72
51
47
37
17
2

Medium Clouds (% Sky Obscured)

53
61
69
75
83
83
83
81
85
88
88
82
71
72
52
34
17
24
31
38

High Clouds (% Sky Obscured)

50
60
45
35
30
30
30
15
29
51
68
45
25
5
9
10
10
10
9
8

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

59
74
66
53
46
44
35
15
23
26
27
27
32
33
24
13
9
10
5
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
6
6
7
8
7
7
6
6
5
4
4
4
4
4
4
4
4
3

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
95
91
90
84
79
74
71
71
70
72
77
83
86
88
90
91
91

Pressure (mb)

1020
1021
1021
1021
1022
1022
1022
1022
1022
1022
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022

Ozone (du)

381
383
384
386
388
390
392
393
395
396
397
398
397
396
395
394
394
393
392
392

Forecast for Great Missenden, Buckinghamshire, United Kingdom (51.70,-0.70)

Generated: 13/04/26 05:22:31. Forecast: 13/04/26 to 19/04/26. Timezone: UTC+1.00