Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 18

Waning Gibbous 69%

02:37

09:21

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: 06:09, Set: 20:14, Transit: 13:13. Moon - Rise: 02:37, Set: 09:21. Civil Dark: 20:49 - 05:34. Nautical Dark: 21:33 - 04:50. Astro Dark: 22:23 - 03:59

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
94
98
100
100
100
100
95
99

Low Clouds (% Sky Obscured)

96
95
94
91
95
95
90
97
95
91
98
97
91
94
91
87
88
95
85
90
96
100
90
99

Medium Clouds (% Sky Obscured)

100
100
100
87
71
95
100
98
98
100
95
99
81
93
100
100
73
71
23
45
45
41
34
28

High Clouds (% Sky Obscured)

92
73
72
72
100
78
78
99
100
68
100
100
100
94
100
84
21
0
15
19
2
30
29
44

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
0
0
0
0
0
4
7
3
1
2
0
0
0
0
0
1
8

Fog (%)

-
-
-
-
-
-
-
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Type

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
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None

Precipitation Probability (%)

100
100
100
100
100
100
100
95
95
95
95
95
95
95
95
95
79
45
37
31
23
17
14
9

Precipitation Amount (mm)

0.8
1.7
0.9
0.8
0.5
1.4
2
1.4
1.8
1.3
2.1
1.3
0.8
1.2
1.9
1.1
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

10
10
10
10
10
10
10
11
11
11
10
10
11
11
11
11
10
11
11
10
11
11
10
10

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
11
10
11
11
10
10

Relative Humidity (%)

98
98
98
99
97
97
100
98
96
98
98
98
96
95
96
98
98
98
98
98
98
98
96
95

Pressure (mb)

1004
1004
1004
1004
1003
1003
1003
1003
1003
1003
1003
1003
1002
1002
1001
1001
1001
1001
1001
1002
1003
1004
1004
1005

Ozone (du)

382
383
381
381
379
378
379
380
381
384
384
385
386
384
383
381
384
384
383
382
382
381
378
379

Saturday 19

Waning Gibbous 59%

03:18

10:31

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 OK
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 06:07, Set: 20:16, Transit: 13:13. Moon - Rise: 03:18, Set: 10:31. Civil Dark: 20:51 - 05:32. Nautical Dark: 21:36 - 04:47. Astro Dark: 22:26 - 03:56

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
52
53
85
71
56
54
50
39
46
49
52
64
66

Low Clouds (% Sky Obscured)

100
100
100
100
100
80
75
59
41
43
30
0
1
15
15
15
10
16
4
9
0
5
23
22

Medium Clouds (% Sky Obscured)

29
35
33
32
40
48
45
44
50
66
74
46
45
53
30
18
24
17
16
12
35
12
26
51

High Clouds (% Sky Obscured)

55
55
45
51
100
84
87
87
100
100
100
14
3
0
2
2
14
3
2
2
2
0
0
0

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 (%)

17
3
15
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
6

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

10
10
10
10
10
10
9
9
9
8
8
7
6
5
4
3
2
1
1
2
3
3
5
6

Relative Humidity (%)

95
91
90
90
89
86
83
86
87
84
83
87
87
85
78
69
68
65
67
75
73
71
74
74

Pressure (mb)

1005
1006
1006
1006
1006
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1006
1006
1006
1007
1007
1007
1007

Ozone (du)

381
381
379
380
379
377
378
378
378
378
379
380
380
379
378
377
378
378
377
377
378
380
381
382

Sunday 20

Waning Gibbous 48%

03:49

11:50

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: 06:05, Set: 20:18, Transit: 13:12. Moon - Rise: 03:49, Set: 11:50. Civil Dark: 20:53 - 05:30. Nautical Dark: 21:38 - 04:45. Astro Dark: 22:29 - 03:53

Total Clouds (% Sky Obscured)

52
48
100
100
100
99
99
100
100
97
100
100
92
92
100
100
100
100
100
100
71
82
82
66

Low Clouds (% Sky Obscured)

4
29
100
100
100
98
98
100
100
93
100
100
92
84
91
95
88
77
86
100
59
55
78
47

Medium Clouds (% Sky Obscured)

23
6
9
11
18
26
38
45
49
44
40
40
44
50
100
100
97
97
75
58
65
65
65
39

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
1
0
1
0
0
15
20
25
30
10
80
56
6
4
3

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
9
21
75
73
19
19
19
19
19

Precipitation Type

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

Precipitation Probability (%)

14
2
8
17
6
12
24
33
34
26
34
42
57
64
62
59
47
26
19
9
7
10
23
26

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

9
7
6
5
4
4
4
3
2
1
2
1
1
1
2
2
4
3
3
2
2
6
8
10

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

75
78
79
81
81
83
85
90
91
93
93
95
95
95
95
95
95
95
96
93
91
85
79
70

Pressure (mb)

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

Ozone (du)

381
379
377
374
373
370
366
364
362
361
361
363
364
364
362
361
361
361
363
365
365
366
368
371

Monday 21

Third Quarter 37%

04:11

No Set

12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 OK
20 OK
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: 06:03, Set: 20:19, Transit: 13:12. Moon - Rise: 04:11, Set: No Set. Civil Dark: 20:55 - 05:27. Nautical Dark: 21:40 - 04:42. Astro Dark: 22:31 - 03:50

Total Clouds (% Sky Obscured)

70
79
82
80
67
51
43
32
26
50
60
62
60
74
84
93
92
92
93
78
61
54
68
82

Low Clouds (% Sky Obscured)

47
59
58
69
56
42
43
32
20
6
10
13
18
28
30
37
34
27
27
25
26
21
32
49

Medium Clouds (% Sky Obscured)

33
55
72
51
27
13
0
2
4
37
48
47
45
46
51
53
65
80
91
71
61
41
56
69

High Clouds (% Sky Obscured)

6
13
0
0
0
0
0
4
7
10
7
3
0
19
33
48
65
49
24
34
37
35
35
30

ISS Passover

Visibility (miles)

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

Fog (%)

19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
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

Precipitation Probability (%)

46
43
51
63
51
46
29
11
4
1
0
0
0
0
0
0
2
12
7
4
7
18
28
32

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

9
10
10
11
13
13
13
12
10
9
7
6
5
3
3
3
3
3
3
3
3
5
7
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
67
64
63
63
65
70
75
84
90
90
91
90
91
90
90
88
88
90
90
88
83
75
75

Pressure (mb)

1009
1009
1010
1010
1010
1011
1012
1012
1013
1014
1015
1015
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017
1017

Ozone (du)

375
376
379
381
382
381
383
380
377
376
377
375
377
378
378
379
380
383
383
382
382
383
385
388

Tuesday 22

Waning Crescent 26%

04:28

13:13

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: 06:01, Set: 20:21, Transit: 13:12. Moon - Rise: 04:28, Set: 13:13. Civil Dark: 20:57 - 05:25. Nautical Dark: 21:42 - 04:40. Astro Dark: 22:34 - 03:47

Total Clouds (% Sky Obscured)

94
96
98
100
100
100
100
100
100
100
98
97
96
97
98
100
96
93
90
89
82
76
75
72

Low Clouds (% Sky Obscured)

56
62
65
71
67
81
90
86
80
77
79
74
72
66
61
54
53
53
52
83
74
66
68
70

Medium Clouds (% Sky Obscured)

90
93
96
69
92
99
100
99
99
90
76
86
90
90
89
79
70
71
68
89
82
76
75
72

High Clouds (% Sky Obscured)

32
36
54
36
84
91
100
96
93
89
62
27
15
41
61
91
81
71
58
18
11
5
7
7

ISS Passover

Visibility (miles)

8
4
3
9
9
8
7
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
8
6

Fog (%)

19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19

Precipitation Type

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

Precipitation Probability (%)

48
55
47
16
19
28
19
32
45
55
54
52
38
29
24
18
13
10
6
20
24
26
35
40

Precipitation Amount (mm)

0.2
0.3
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

11
11
11
11
11
10
10
10
10
9
9
9
9
9
9
9
9
9
9
9
10
10
11
11

Relative Humidity (%)

89
93
95
93
92
84
90
93
95
95
96
96
96
96
96
98
96
96
96
96
95
93
90
87

Pressure (mb)

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

Ozone (du)

391
389
386
384
379
375
372
370
370
369
366
366
365
364
364
365
366
368
368
369
371
372
373
375

Wednesday 23

Waning Crescent 17%

04:43

14:38

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: 05:59, Set: 20:22, Transit: 13:12. Moon - Rise: 04:43, Set: 14:38. Civil Dark: 20:58 - 05:23. Nautical Dark: 21:44 - 04:37. Astro Dark: 22:37 - 03:44

Total Clouds (% Sky Obscured)

74
73
75
78
80
85
86
81
79
78
66
54
47
51
54
56
69
81
94
92
89
86
81
75

Low Clouds (% Sky Obscured)

72
70
69
72
71
73
72
62
52
42
44
42
41
43
43
43
47
58
65
74
80
82
78
75

Medium Clouds (% Sky Obscured)

74
73
75
65
73
70
72
50
27
10
7
4
1
4
6
7
14
23
50
60
70
75
60
45

High Clouds (% Sky Obscured)

7
15
24
35
25
21
13
4
2
0
0
0
0
0
0
0
13
29
43
36
26
17
13
13

ISS Passover

Visibility (miles)

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

Fog (%)

19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19

Precipitation Type

Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Very 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

Precipitation Probability (%)

47
48
53
58
54
50
48
40
33
30
22
17
10
11
8
2
2
2
1
7
9
10
17
20

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

14
14
13
13
12
11
10
11
9
8
6
6
5
5
5
5
5
4
4
4
4
4
5
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

86
83
86
87
90
93
93
93
93
95
95
95
95
95
93
94
94
93
94
94
93
90
90
83

Pressure (mb)

1018
1019
1019
1019
1019
1019
1019
1019
1020
1020
1021
1021
1021
1021
1021
1021
1021
1022
1022
1022
1022
1022
1023
1022

Ozone (du)

378
380
379
379
378
378
377
377
377
377
377
379
381
383
383
382
382
382
383
383
384
385
386
385

Thursday 24

Waning Crescent 9%

04:57

16:03

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: 05:57, Set: 20:24, Transit: 13:12. Moon - Rise: 04:57, Set: 16:03. Civil Dark: 21:00 - 05:21. Nautical Dark: 21:46 - 04:35. Astro Dark: 22:39 - 03:41

Total Clouds (% Sky Obscured)

68
71
73
77
79
81
86
89
85
82
75
69
66
71
65
69
65
65
64
76
85
100
100
100

Low Clouds (% Sky Obscured)

68
61
54
47
33
21
8
5
3
1
13
25
38
41
43
42
46
47
50
57
70
87
85
84

Medium Clouds (% Sky Obscured)

29
25
23
21
22
23
25
24
23
27
40
35
30
33
37
40
38
44
50
56
57
63
59
56

High Clouds (% Sky Obscured)

13
23
33
43
50
56
65
37
20
0
0
0
0
25
49
69
63
52
41
58
78
100
99
98

ISS Passover

Visibility (miles)

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

Fog (%)

19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19
19

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
28
35
41
43
39
32
30
23
5
8
8
6
7
7
4
12
15
17
18
16
5
12
12

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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

77
71
71
70
70
75
79
83
85
88
90
91
91
93
91
91
91
90
90
90
84
80
75
68

Pressure (mb)

1022
1022
1022
1022
1022
1022
1022
1022
1022
1022
1023
1023
1023
1023
1023
1023
1022
1022
1022
1022
1023
1023
1023
1023

Ozone (du)

384
383
383
382
381
377
373
369
368
367
366
364
362
361
360
358
357
357
356
356
356
356
356
357

Welcome to Clear Outside

Forecast for Alphington, Devon, United Kingdom (50.70,-3.52)

Generated: 18/04/25 19:34:48. Forecast: 18/04/25 to 24/04/25. Timezone: UTC+1.00