Clear Outside v1.0 - International Weather Forecasts For Astronomers

Sunday 20

Waning Gibbous 48%

03:40

No Set

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 OK
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 05:49, Set: 20:06, Transit: 12:59. Moon - Rise: 03:40, Set: No Set. Civil Dark: 20:42 - 05:13. Nautical Dark: 21:28 - 04:27. Astro Dark: 22:21 - 03:33

Total Clouds (% Sky Obscured)

97
97
98
92
95
95
90
93
100
93
99
100
97
94
60
46
48
59
83
76
90
66
59
100

Low Clouds (% Sky Obscured)

83
92
70
58
50
40
37
82
100
67
54
34
53
41
0
0
25
36
52
63
70
47
0
14

Medium Clouds (% Sky Obscured)

28
13
28
31
37
39
20
20
27
24
24
24
34
43
27
26
23
22
24
46
77
15
43
20

High Clouds (% Sky Obscured)

2
3
3
38
88
55
55
55
50
30
25
36
6
6
3
3
3
3
1
1
2
0
16
85

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
8
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
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
2
4
4
5
11
9
13
15
11
13
7
2
3
3
1
15
8
25
42
37
28

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

11
10
10
9
7
6
7
7
6
6
6
6
5
4
3
4
3
2
2
0
0
1
2
1

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

2
2
3
5
7
6
7
7
7
6
7
7
7
7
7
7
7
6
6
6
5
7
9
12

Relative Humidity (%)

55
54
54
57
61
60
64
71
75
74
80
84
85
85
85
87
87
88
88
90
88
90
93
93

Pressure (mb)

1007
1007
1007
1007
1007
1006
1006
1006
1006
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1007
1008
1008
1008
1009

Ozone (du)

368
367
366
365
364
363
364
363
362
362
361
361
363
365
366
366
366
366
367
368
369
369
367
365

Monday 21

Third Quarter 37%

04:01

11:31

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 OK
00 OK
01 Bad
02 Bad
03 Bad
04 OK
05 Bad
06 Bad
07 Bad
08 Bad
09 Bad
10 Bad

Sun - Rise: 05:47, Set: 20:08, Transit: 12:58. Moon - Rise: 04:01, Set: 11:31. Civil Dark: 20:44 - 05:11. Nautical Dark: 21:30 - 04:24. Astro Dark: 22:24 - 03:30

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
98
97
96
100
37
44
26
37
50
48
43
38
93
100
100
94
97
91

Low Clouds (% Sky Obscured)

50
50
45
60
60
52
47
56
45
36
37
44
26
37
49
45
31
32
41
40
40
31
67
48

Medium Clouds (% Sky Obscured)

26
90
100
88
95
92
27
31
70
61
0
0
0
0
0
0
0
0
0
8
89
35
42
36

High Clouds (% Sky Obscured)

100
100
100
100
100
100
90
56
50
30
0
0
1
2
19
27
38
29
83
100
100
83
25
25

ISS Passover

Visibility (miles)

9
9
9
9
9
7
5
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
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

21
13
15
46
48
53
47
40
23
13
5
1
0
0
0
0
0
0
0
0
0
0
0
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
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
17
17
18
18
16
15
14
13
13
12
12
11
10
9
9
8
8
7
7
7
8
10
12

Feels Like (°C)

14
16
17
17
18
15
14
13
12
12
12
12
11
10
9
7
6
6
5
5
5
6
8
10

Dew Point (°C)

14
16
16
15
15
13
13
12
11
11
11
11
10
9
8
8
7
7
7
6
6
6
6
6

Relative Humidity (%)

95
93
92
86
80
85
87
84
83
87
89
92
93
93
93
93
93
93
94
93
91
84
78
70

Pressure (mb)

1009
1009
1009
1009
1009
1009
1010
1010
1011
1012
1012
1013
1013
1014
1014
1014
1015
1015
1016
1016
1017
1017
1018
1018

Ozone (du)

364
363
362
360
359
360
358
356
359
362
366
369
369
368
367
366
366
365
365
366
367
369
369
368

Tuesday 22

Waning Crescent 26%

04:17

12:55

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

Sun - Rise: 05:45, Set: 20:09, Transit: 12:58. Moon - Rise: 04:17, Set: 12:55. Civil Dark: 20:46 - 05:08. Nautical Dark: 21:32 - 04:22. Astro Dark: 22:27 - 03:26

Total Clouds (% Sky Obscured)

96
93
95
90
81
82
93
85
80
60
73
48
30
33
100
100
100
100
100
100
97
95
92
93

Low Clouds (% Sky Obscured)

56
40
41
41
49
47
28
0
0
0
22
0
0
0
5
5
33
45
63
56
53
71
82
75

Medium Clouds (% Sky Obscured)

40
33
37
54
80
16
4
21
21
14
13
48
30
33
65
65
100
100
40
100
97
95
72
91

High Clouds (% Sky Obscured)

79
70
60
75
50
26
60
40
40
35
35
30
30
33
75
100
100
100
75
80
53
29
0
11

ISS Passover

Visibility (miles)

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

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

Precipitation Probability (%)

13
25
8
4
1
0
2
2
0
0
0
0
0
10
69
95
95
95
65
50
34
42
56
55

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.9
1.5
0.6
0.2
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
11
12
13
12
13
13
12
12
9
9
8
7
6
5
5
5
5
3
4
6
7
7
8

Dew Point (°C)

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

Relative Humidity (%)

60
51
43
39
38
40
45
50
56
64
68
72
73
74
75
84
95
91
91
95
88
91
87
84

Pressure (mb)

1018
1018
1018
1017
1017
1017
1017
1017
1017
1017
1018
1017
1017
1017
1016
1015
1014
1014
1013
1012
1012
1013
1013
1013

Ozone (du)

369
369
371
373
375
379
381
378
378
375
371
370
371
372
377
376
380
387
395
402
408
410
409
408

Wednesday 23

Waning Crescent 17%

04:31

14:21

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

Sun - Rise: 05:43, Set: 20:11, Transit: 12:58. Moon - Rise: 04:31, Set: 14:21. Civil Dark: 20:48 - 05:06. Nautical Dark: 21:35 - 04:19. Astro Dark: 22:30 - 03:23

Total Clouds (% Sky Obscured)

94
96
76
62
48
45
42
34
40
45
26
6
19
25
43
64
89
85
80
76
69
65
60
61

Low Clouds (% Sky Obscured)

65
54
47
38
29
24
14
0
5
5
6
1
3
5
32
60
88
81
75
67
63
61
60
61

Medium Clouds (% Sky Obscured)

90
87
52
25
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

21
31
20
10
0
0
0
0
0
0
0
0
0
0
0
0
30
30
20
30
30
30
1
2

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 (%)

48
35
31
27
10
9
18
17
10
1
1
0
0
0
0
0
0
0
0
0
0
0
0
2

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

81
62
56
54
57
55
53
61
67
79
83
87
90
90
85
84
82
79
82
87
84
80
77
76

Pressure (mb)

1013
1013
1014
1014
1014
1014
1014
1015
1015
1016
1017
1018
1019
1020
1020
1020
1021
1021
1021
1022
1022
1023
1023
1024

Ozone (du)

409
410
410
407
403
392
386
386
378
376
373
369
365
365
363
361
359
357
358
359
360
361
360
361

Thursday 24

Waning Crescent 9%

04:43

15:48

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

Sun - Rise: 05:41, Set: 20:13, Transit: 12:58. Moon - Rise: 04:43, Set: 15:48. Civil Dark: 20:50 - 05:04. Nautical Dark: 21:37 - 04:16. Astro Dark: 22:33 - 03:20

Total Clouds (% Sky Obscured)

67
71
74
76
77
66
63
51
52
53
54
36
20
5
12
24
39
40
55
68
76
81
84
82

Low Clouds (% Sky Obscured)

67
71
60
49
41
42
45
49
49
50
51
32
16
0
8
16
23
30
36
43
49
55
61
55

Medium Clouds (% Sky Obscured)

0
0
12
23
32
21
12
0
0
0
0
0
0
0
12
24
39
38
19
8
22
46
67
74

High Clouds (% Sky Obscured)

1
1
1
1
0
0
0
0
0
2
13
2
2
5
5
6
6
7
11
15
20
31
28
41

ISS Passover

Visibility (miles)

9
9
7
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 (%)

16
21
19
16
15
16
17
13
1
2
0
0
0
0
0
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)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

11
12
13
13
15
15
15
13
11
10
9
8
7
7
7
7
6
7
7
6
6
5
6
7

Dew Point (°C)

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

Relative Humidity (%)

74
68
68
68
64
60
60
63
74
73
71
71
70
72
73
74
75
78
77
75
75
68
62
56

Pressure (mb)

1024
1024
1024
1023
1023
1023
1023
1023
1024
1024
1025
1025
1025
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

361
360
361
364
365
364
360
357
354
352
351
351
350
348
346
345
344
344
343
342
342
342
342
342

Friday 25

Waning Crescent 8%

04:56

17:17

11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
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

Sun - Rise: 05:39, Set: 20:14, Transit: 12:58. Moon - Rise: 04:56, Set: 17:17. Civil Dark: 20:52 - 05:02. Nautical Dark: 21:39 - 04:14. Astro Dark: 22:36 - 03:16

Total Clouds (% Sky Obscured)

67
58
57
58
58
48
42
38
40
33
25
38
42
46
39
39
56
67
87
92
93
86
82
80

Low Clouds (% Sky Obscured)

48
41
43
45
48
42
35
33
35
23
10
19
28
35
32
32
32
44
57
69
61
53
44
48

Medium Clouds (% Sky Obscured)

67
58
57
58
58
48
42
38
40
33
25
38
42
46
39
39
36
37
42
51
60
68
82
70

High Clouds (% Sky Obscured)

64
58
52
39
24
28
9
5
0
0
0
1
1
2
1
1
0
0
0
1
19
39
56
65

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
7
5
3
5
7
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
Very Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None

Precipitation Probability (%)

0
0
3
7
7
25
34
38
31
22
6
7
7
2
10
23
37
55
65
73
56
43
31
32

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.3
0.4
0.6
0.2
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

55
53
51
50
50
49
57
68
77
79
78
78
78
76
76
80
84
90
90
93
95
93
90
90

Pressure (mb)

1026
1025
1025
1025
1024
1024
1024
1024
1024
1024
1024
1024
1024
1024
1023
1023
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

343
344
346
345
344
342
344
346
348
349
351
352
353
353
354
353
351
350
351
353
355
355
356
357

Saturday 26

Waning Crescent 3%

05:10

18:48

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
05 Bad
06 Bad

Sun - Rise: 05:37, Set: 20:16, Transit: 12:58. Moon - Rise: 05:10, Set: 18:48. Civil Dark: 20:53 - 05:00. Nautical Dark: 21:41 - 04:11. Astro Dark: 22:39 - 03:13

Total Clouds (% Sky Obscured)

83
88
91
93
96
78
60
42
56
68
81
85
88
94
93
92
89
84
82
78

Low Clouds (% Sky Obscured)

52
55
51
46
41
35
28
22
33
39
44
50
56
62
58
55
51
44
43
40

Medium Clouds (% Sky Obscured)

77
88
72
51
45
38
19
5
13
21
34
55
71
83
82
77
71
68
56
49

High Clouds (% Sky Obscured)

67
68
65
61
58
48
37
27
27
28
25
30
39
49
57
68
71
57
39
21

ISS Passover

Visibility (miles)

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

Precipitation Type

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

Precipitation Probability (%)

33
33
53
65
73
67
61
61
53
45
38
40
34
25
24
20
6
7
4
2

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
15
16
17
17
18
17
16
15
14
13
12
11
11
10
10
9
9
9
9

Feels Like (°C)

11
11
13
17
17
17
17
16
17
14
14
13
13
12
12
9
8
8
8
7

Dew Point (°C)

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

Relative Humidity (%)

84
79
75
73
72
70
74
78
82
84
87
90
92
91
93
93
93
93
93
93

Pressure (mb)

1023
1022
1022
1022
1022
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1023
1023
1023
1023

Ozone (du)

359
360
362
363
365
367
367
367
368
370
372
373
374
375
375
377
378
379
378
378

Forecast for Harringay, Greater London, United Kingdom (51.59,-0.10)

Generated: 20/04/25 11:53:28. Forecast: 20/04/25 to 26/04/25. Timezone: UTC+1.00