Clear Outside v1.0 - International Weather Forecasts For Astronomers

Friday 15

Waning Crescent 3%

04:19

19:30

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 OK
23 OK
00 OK
01 OK
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good

Sun - Rise: 05:08, Set: 20:44, Transit: 12:57. Moon - Rise: 04:19, Set: 19:30. Civil Dark: 21:25 - 04:26. Nautical Dark: 22:21 - 03:30. Astro Dark: 23:43 - 02:06

Total Clouds (% Sky Obscured)

85
83
75
100
100
86
83
82
82
90
80
67
53
49
30
6
24
11
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

49
55
50
63
72
39
47
65
32
51
20
0
0
0
5
6
0
11
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

85
70
75
85
90
75
61
69
82
90
80
67
53
20
10
0
10
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

38
50
55
39
3
6
7
3
3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

9
9
9
9
8
7
9
5
5
5
6
4
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
Very Light Rain
None
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

1
1
1
34
43
46
50
56
56
57
54
45
30
13
9
6
5
4
3
4
7
2
2
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
9
10
11
12
12
12
13
12
11
11
11
10
8
7
6
5
5
4
3
3
2
2
4

Feels Like (°C)

5
5
7
7
9
9
9
9
8
9
9
9
9
7
6
5
4
4
4
4
2
1
0
3

Dew Point (°C)

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

Relative Humidity (%)

88
80
69
59
55
58
59
60
68
87
87
91
91
90
90
88
90
93
91
94
94
93
93
89

Pressure (mb)

1007
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1010
1010

Ozone (du)

408
405
405
408
409
410
412
414
417
421
424
425
422
417
413
409
407
405
403
400
396
394
395
395

Saturday 16

New Moon 0%

04:50

21:05

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
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:06, Set: 20:46, Transit: 12:57. Moon - Rise: 04:50, Set: 21:05. Civil Dark: 21:27 - 04:25. Nautical Dark: 22:23 - 03:28. Astro Dark: 23:48 - 02:01

Total Clouds (% Sky Obscured)

0
0
89
84
94
100
96
80
86
100
100
100
99
100
100
100
100
99
99
99
100
94
97
100

Low Clouds (% Sky Obscured)

0
0
21
30
27
0
72
66
81
67
55
51
51
89
85
82
85
83
87
80
76
64
68
85

Medium Clouds (% Sky Obscured)

0
0
85
27
26
29
38
40
47
55
90
90
90
96
95
94
100
99
98
97
61
28
31
35

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
2
4
82
100
100
91
100
100
85
100
62
2
4
2
25
25
25

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
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
Very Light Rain
None
Very Light Rain
None
Very Light Rain
None
None
None
None
None

Precipitation Probability (%)

0
0
0
0
10
12
19
17
23
14
9
7
22
40
51
47
64
52
56
50
33
25
22
44

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

82
74
59
52
48
49
57
65
62
65
75
81
86
88
90
91
95
96
95
95
95
95
98
93

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010

Ozone (du)

395
396
396
396
397
396
395
393
391
391
390
390
391
391
391
390
390
393
402
403
403
401
400
400

Sunday 17

Waxing Crescent 1%

05:36

22:34

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
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:05, Set: 20:47, Transit: 12:57. Moon - Rise: 05:36, Set: 22:34. Civil Dark: 21:29 - 04:23. Nautical Dark: 22:26 - 03:26. Astro Dark: 23:53 - 01:56

Total Clouds (% Sky Obscured)

100
99
91
94
83
100
99
100
100
99
100
100
100
100
100
86
92
65
42
19
19
20
21
44

Low Clouds (% Sky Obscured)

84
78
70
62
56
61
46
55
59
45
36
53
26
33
25
0
0
0
0
0
0
0
0
25

Medium Clouds (% Sky Obscured)

38
99
91
94
83
99
85
98
100
99
94
100
100
100
100
86
40
21
18
19
19
20
21
11

High Clouds (% Sky Obscured)

30
35
39
64
40
100
82
100
100
28
100
100
100
41
70
26
6
4
2
0
5
9
14
32

ISS Passover

Visibility (miles)

9
6
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
8
4
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

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

Precipitation Probability (%)

62
73
55
47
40
35
38
39
33
37
34
42
34
13
6
6
4
2
8
25
44
53
65
53

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

6
7
10
11
12
14
14
15
15
15
13
12
10
7
7
6
6
6
5
5
5
7
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

93
86
80
74
65
62
61
61
63
61
70
79
85
88
88
91
90
91
90
91
91
94
94
96

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

402
404
406
408
411
413
414
415
414
417
421
423
423
424
426
426
426
428
431
432
432
431
428
423

Monday 18

Waxing Crescent 5%

06:42

23:49

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
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:03, Set: 20:49, Transit: 12:57. Moon - Rise: 06:42, Set: 23:49. Civil Dark: 21:30 - 04:22. Nautical Dark: 22:28 - 03:24. Astro Dark: 23:58 - 01:50

Total Clouds (% Sky Obscured)

71
98
97
92
90
96
97
97
98
99
100
100
100
100
100
100
100
100
100
100
99
98
97
97

Low Clouds (% Sky Obscured)

50
75
69
63
57
53
51
45
47
54
70
76
82
87
90
95
98
97
97
96
93
90
85
84

Medium Clouds (% Sky Obscured)

49
56
64
55
61
58
59
95
88
97
100
89
100
100
98
97
95
97
98
97
77
45
67
71

High Clouds (% Sky Obscured)

52
71
64
53
46
55
60
68
80
89
97
75
50
30
53
75
100
85
75
76
67
60
76
78

ISS Passover

Visibility (miles)

4
4
4
5
5
7
9
9
9
9
9
9
9
9
6
5
4
3
3
5
9
0
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
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None

Precipitation Probability (%)

59
59
59
59
45
39
25
14
25
25
34
51
63
73
76
83
89
87
94
95
95
71
44
37

Precipitation Amount (mm)

0.3
0.3
0.3
0.3
0
0
0
0
0
0
0
0
0.3
0.3
0.4
0.4
0.6
0.5
0.7
1
0.7
0.4
0
0

Wind Speed/Direction (mph)

11
13
14
16
17
17
17
17
16
15
14
13
12
12
11
14
16
17
17
15
15
15
14
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
90
84
79
71
68
63
65
68
75
81
87
92
95
96
96
96
98
98
96
96
95
95

Pressure (mb)

1011
1012
1012
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1011
1011
1010
1009
1009
1008
1008
1007
1007
1007
1008

Ozone (du)

423
419
411
408
403
400
395
390
386
384
379
378
379
379
378
378
380
390
393
390
388
390
390
389

Tuesday 19

Waxing Crescent 12%

08:03

00:43

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
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:02, Set: 20:50, Transit: 12:57. Moon - Rise: 08:03, Set: 00:43. Civil Dark: 21:32 - 04:20. Nautical Dark: 22:30 - 03:22. Astro Dark: 00:03 - 01:44

Total Clouds (% Sky Obscured)

97
98
94
89
85
78
71
73
69
73
75
68
75
82
83
86
91
87
82
78
75
72
71
78

Low Clouds (% Sky Obscured)

86
87
79
72
65
65
66
66
69
70
75
68
73
71
74
78
81
73
69
72
75
72
71
78

Medium Clouds (% Sky Obscured)

61
35
84
81
55
22
13
5
7
3
3
11
8
5
6
7
12
14
17
16
15
9
1
8

High Clouds (% Sky Obscured)

65
81
59
33
13
2
2
18
4
2
0
0
1
1
2
3
4
8
13
21
15
9
3
3

ISS Passover

Visibility (miles)

9
6
6
7
5
5
5
5
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

31
33
39
46
63
73
85
82
67
48
22
20
14
4
5
5
4
5
5
6
13
13
13
19

Precipitation Amount (mm)

0
0
0
0.2
0.4
0.4
0.6
0.5
0.3
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

15
16
16
18
20
19
20
20
20
20
19
19
17
17
16
15
15
15
14
13
12
12
12
11

Chance of Frost

Temperature (°C)

13
14
14
15
16
16
16
16
16
16
15
14
14
13
13
13
12
12
12
12
12
12
13
13

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
86
92
87
83
89
81
83
82
82
80
86
84
84
83
89
92
96
93
89
84
86
87
89

Pressure (mb)

1008
1008
1009
1009
1009
1009
1009
1009
1009
1010
1010
1011
1011
1012
1012
1013
1013
1014
1014
1015
1015
1016
1016
1017

Ozone (du)

397
390
388
386
384
388
389
389
388
389
390
389
388
387
386
384
382
379
376
372
369
364
359
355

Wednesday 20

Waxing Crescent 21%

08:03

01:19

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
05 Bad
06 Bad
07 Bad

Sun - Rise: 05:01, Set: 20:51, Transit: 12:57. Moon - Rise: 08:03, Set: 01:19. Civil Dark: 21:34 - 04:19. Nautical Dark: 22:32 - 03:19. Astro Dark: 00:10 - 01:37

Total Clouds (% Sky Obscured)

83
87
82
76
70
64
62
60
61
63
65
77
88
100
100
100
100
98
97
96
88
77
66
66

Low Clouds (% Sky Obscured)

83
87
81
76
70
64
62
60
44
28
12
9
7
5
20
35
50
53
56
60
59
59
59
57

Medium Clouds (% Sky Obscured)

11
14
10
7
6
5
4
2
5
11
15
23
29
30
25
25
20
21
21
26
31
36
41
29

High Clouds (% Sky Obscured)

3
2
2
1
0
1
0
0
7
14
24
50
78
99
99
100
100
86
72
58
38
23
8
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
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
8
18
22
21
19
18
12
11
7
2
1
1
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)

12
13
14
14
14
15
15
15
15
14
13
12
10
8
6
6
5
5
5
4
4
4
4
5

Chance of Frost

Temperature (°C)

13
14
14
15
16
16
16
17
17
16
16
15
14
12
11
11
11
11
11
11
11
12
13
13

Feels Like (°C)

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

Dew Point (°C)

11
12
11
12
12
12
12
11
11
11
12
12
11
11
10
10
10
10
10
10
10
11
11
12

Relative Humidity (%)

87
86
82
80
79
78
74
71
67
72
77
82
86
90
95
93
93
93
93
93
93
92
89
89

Pressure (mb)

1018
1018
1019
1019
1020
1020
1020
1021
1021
1021
1021
1022
1022
1023
1023
1023
1024
1024
1024
1024
1025
1025
1025
1026

Ozone (du)

352
350
348
345
343
340
340
339
338
337
336
335
335
335
335
336
338
339
343
347
350
349
348
347

Thursday 21

Waxing Crescent 31%

09:31

01:44

08 Bad
09 Bad
10 Bad
11 Bad
12 Bad
13 Bad
14 Bad
15 Bad
16 OK
17 OK
18 OK
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK

Sun - Rise: 05:00, Set: 20:53, Transit: 12:57. Moon - Rise: 09:31, Set: 01:44. Civil Dark: 21:35 - 04:17. Nautical Dark: 22:34 - 03:17. Astro Dark: 00:16 - 01:30

Total Clouds (% Sky Obscured)

70
70
70
64
68
66
65
56
47
35
33
34
35
39
34
28
25

Low Clouds (% Sky Obscured)

56
55
48
41
34
23
11
0
0
0
0
0
0
0
0
1
1

Medium Clouds (% Sky Obscured)

16
4
6
6
8
13
20
24
16
12
6
5
5
4
4
3
2

High Clouds (% Sky Obscured)

30
39
48
46
50
53
60
56
47
35
33
34
35
39
34
28
24

ISS Passover

Visibility (miles)

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

Precipitation Type

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
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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

15
16
18
18
19
20
20
20
20
19
19
19
17
15
13
13
13

Feels Like (°C)

15
15
16
16
17
18
21
20
20
20
20
20
18
18
18
17
17

Dew Point (°C)

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

Relative Humidity (%)

82
78
73
72
69
68
68
68
67
70
73
77
79
85
89
89
89

Pressure (mb)

1026
1026
1026
1026
1027
1027
1027
1027
1026
1026
1026
1026
1026
1026
1026
1026
1026

Ozone (du)

346
345
343
342
341
340
340
339
338
338
338
337
337
336
335
336
338

Forecast for Southgate, West Sussex, United Kingdom (51.11,-0.19)

Generated: 15/05/26 08:24:05. Forecast: 15/05/26 to 21/05/26. Timezone: UTC+1.00