Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 23

Waxing Gibbous 60%

13:39

04:09

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
16 Bad
17 Bad

Sun - Rise: 05:55, Set: 20:36, Transit: 13:16. Moon - Rise: 13:39, Set: 04:09. Civil Dark: 21:15 - 05:15. Nautical Dark: 22:07 - 04:22. Astro Dark: 23:11 - 03:17

Total Clouds (% Sky Obscured)

100
100
100
99
100
100
100
99
99
100
100
100
100
100
100
100
94
47
100
100
97
96
76
100

Low Clouds (% Sky Obscured)

100
52
49
6
23
20
14
41
36
98
100
36
34
3
4
9
19
35
49
73
8
8
6
1

Medium Clouds (% Sky Obscured)

95
81
69
84
98
96
75
95
98
100
98
100
100
100
100
93
34
39
91
98
94
95
72
98

High Clouds (% Sky Obscured)

92
100
99
98
99
98
99
98
98
98
98
100
100
100
100
100
91
2
99
100
85
51
22
100

ISS Passover

Visibility (miles)

6
7
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Fog (%)

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

Precipitation Probability (%)

18
10
8
7
6
4
0
0
0
4
6
7
6
5
4
0
0
0
8
13
19
26
33
36

Precipitation Amount (mm)

0.07
0.14
0.04
0.04
0.03
0.01
0
0
0
0.01
0.02
0.03
0.02
0.02
0.01
0
0
0
0.02
0.05
0.08
0.14
0.19
0.22

Wind Speed/Direction (mph)

25
25
23
19
17
15
15
15
15
17
18
18
17
17
16
15
15
15
15
15
15
15
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

99
99
97
95
96
95
94
93
94
98
100
100
100
99
94
90
87
85
84
85
87
90
94
98

Pressure (mb)

1009
1009
1009
1009
1010
1010
1011
1011
1011
1011
1011
1011
1011
1011
1011
1011
1012
1011
1011
1011
1010
1010
1009
1009

Ozone (du)

336
335
335
336
336
336
335
335
337
338
340
342
344
345
344
341
339
340
341
343
342
342
343
348

Tuesday 24

Waxing Gibbous 71%

14:57

04:39

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

Sun - Rise: 05:52, Set: 20:38, Transit: 13:16. Moon - Rise: 14:57, Set: 04:39. Civil Dark: 21:18 - 05:12. Nautical Dark: 22:10 - 04:20. Astro Dark: 23:15 - 03:12

Total Clouds (% Sky Obscured)

93
93
87
83
52
35
20
16
20
9
2
1
10
33
27
25
56
71
21
16
13
27
45
45

Low Clouds (% Sky Obscured)

6
59
70
17
44
29
11
10
19
9
2
1
10
33
27
25
45
70
20
13
11
9
16
22

Medium Clouds (% Sky Obscured)

76
91
77
81
30
22
17
13
9
2
0
0
0
0
0
1
31
2
6
9
8
22
26
34

High Clouds (% Sky Obscured)

84
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4
30
13

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

37
37
35
31
26
22
17
13
9
4
0
0
5
8
8
9
11
18
30
38
36
30
25
21

Precipitation Amount (mm)

0.22
0.23
0.24
0.26
0.26
0.22
0.15
0.1
0.05
0.01
0
0
0.01
0.03
0.03
0.04
0.05
0.14
0.42
0.66
0.52
0.29
0.18
0.15

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
6
6
6
6
6
6
6
6
6
6
5
5
5
5
6
6
6
6
6
6
6
6
6

Relative Humidity (%)

100
100
100
100
100
100
100
100
100
99
99
100
100
100
97
92
88
87
87
87
86
85
84
84

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1009
1009
1009
1009
1009
1008
1008
1008
1007
1007

Ozone (du)

355
360
363
364
365
366
366
366
367
367
368
368
369
371
373
377
379
382
384
386
388
390
392
392

Wednesday 25

Waxing Gibbous 81%

16:15

05:03

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

Sun - Rise: 05:50, Set: 20:39, Transit: 13:16. Moon - Rise: 16:15, Set: 05:03. Civil Dark: 21:20 - 05:10. Nautical Dark: 22:12 - 04:17. Astro Dark: 23:19 - 03:08

Total Clouds (% Sky Obscured)

15
23
9
16
37
16
39
9
8
12
7
13
27
81
81
81
81
81
81
55
55
55
55
55

Low Clouds (% Sky Obscured)

3
13
6
9
4
10
4
9
8
12
7
13
4
9
9
9
9
9
9
9
9
9
9
9

Medium Clouds (% Sky Obscured)

13
13
6
14
37
11
37
1
0
0
0
0
0
48
48
48
48
48
48
53
53
53
53
53

High Clouds (% Sky Obscured)

3
9
0
0
0
0
0
0
0
0
0
0
24
78
78
78
78
78
78
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

20
18
15
13
12
12
11
10
9
7
6
6
8
8
8
8
8
9
10
11
13
14
15
15

Precipitation Amount (mm)

0.16
0.18
0.12
0.07
0.07
0.07
0.06
0.04
0.03
0.02
0.01
0.01
0.02
0.03
0.02
0.02
0.02
0.04
0.06
0.1
0.13
0.16
0.19
0.19

Wind Speed/Direction (mph)

18
17
18
19
19
20
20
21
21
22
23
20
22
24
22
20
24
24
23
23
22
21
20
19

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
3
2
1
1
1
1
1
1
0
0
-0
-0
1
2
3
4
5
5
5
5
4
4

Dew Point (°C)

6
5
5
5
5
5
5
5
5
4
4
4
5
5
5
4
4
4
5
5
4
4
4
4

Relative Humidity (%)

84
85
87
91
94
94
94
93
92
91
91
94
95
95
91
86
81
77
74
73
72
73
75
78

Pressure (mb)

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

Ozone (du)

392
391
389
387
386
388
391
393
393
393
392
393
394
395
396
397
398
400
403
405
407
410
411
410

Thursday 26

Waxing Gibbous 89%

17:32

05:25

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

Sun - Rise: 05:48, Set: 20:41, Transit: 13:16. Moon - Rise: 17:32, Set: 05:25. Civil Dark: 21:22 - 05:07. Nautical Dark: 22:15 - 04:14. Astro Dark: 23:24 - 03:03

Total Clouds (% Sky Obscured)

55
38
38
38
38
38
38
3
3
3
3
3
3
66
66
66
66
66
66
83
83
83
83
83

Low Clouds (% Sky Obscured)

9
2
2
2
2
2
2
1
1
1
1
1
1
0
0
0
0
0
0
32
32
32
32
32

Medium Clouds (% Sky Obscured)

53
38
38
38
38
38
38
2
2
2
2
2
2
13
13
13
13
13
13
37
37
37
37
37

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
1
1
1
1
1
1
65
65
65
65
65
65
66
66
66
66
66

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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
Very Light Rain
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
None
None

Precipitation Probability (%)

15
14
13
12
11
10
9
8
7
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5

Precipitation Amount (mm)

0.17
0.15
0.12
0.09
0.07
0.04
0.03
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.02

Wind Speed/Direction (mph)

19
18
16
16
16
14
14
16
15
15
14
13
7
12
8
1
10
8
7
8
8
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
3
3
4

Relative Humidity (%)

81
83
84
86
88
89
89
88
88
88
89
91
92
91
88
84
79
74
71
69
68
69
71
74

Pressure (mb)

1012
1012
1012
1013
1013
1013
1013
1012
1012
1012
1012
1011
1011
1011
1011
1012
1012
1012
1012
1012
1011
1011
1011
1011

Ozone (du)

408
406
404
402
400
397
395
393
393
394
395
396
396
396
394
392
390
389
388
388
388
389
390
391

Friday 27

Waxing Gibbous 95%

No Rise

05:46

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

Sun - Rise: 05:46, Set: 20:43, Transit: 13:15. Moon - Rise: No Rise, Set: 05:46. Civil Dark: 21:24 - 05:05. Nautical Dark: 22:18 - 04:11. Astro Dark: 23:28 - 02:59

Total Clouds (% Sky Obscured)

83
46
46
46
46
46
46
30
30
30
30
30
30
5
5
5
5
5
5
98
98
98
98
98

Low Clouds (% Sky Obscured)

32
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
34
34
34
34
34

Medium Clouds (% Sky Obscured)

37
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
34
34
34
34
34

High Clouds (% Sky Obscured)

66
46
46
46
46
46
46
30
30
30
30
30
30
5
5
5
5
5
5
97
97
97
97
97

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

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

Precipitation Probability (%)

7
7
8
7
6
6
6
6
6
6
6
6
5
5
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.05
0.08
0.06
0.03
0.02
0.03
0.04
0.04
0.04
0.04
0.04
0.03
0.02
0.01
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

4
4
4
4
4
4
4
4
4
4
4
4
4
4
5
5
4
4
4
4
4
4
4
4

Relative Humidity (%)

77
79
82
85
88
90
91
92
91
91
92
94
96
95
91
86
81
77
73
70
68
66
67
70

Pressure (mb)

1011
1012
1012
1012
1013
1014
1014
1015
1014
1014
1014
1014
1014
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

391
392
393
394
394
394
393
392
393
394
395
395
396
396
395
394
394
394
393
393
393
394
394
394

Saturday 28

Waxing Gibbous 99%

18:48

06:07

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
16 Bad
17 Bad

Sun - Rise: 05:44, Set: 20:45, Transit: 13:15. Moon - Rise: 18:48, Set: 06:07. Civil Dark: 21:26 - 05:02. Nautical Dark: 22:20 - 04:08. Astro Dark: 23:32 - 02:54

Total Clouds (% Sky Obscured)

98
100
100
100
100
100
100
56
56
56
56
56
56
85
85
85
85
85
85
88
88
88
88
88

Low Clouds (% Sky Obscured)

34
1
1
1
1
1
1
13
13
13
13
13
13
1
1
1
1
1
1
62
62
62
62
62

Medium Clouds (% Sky Obscured)

34
2
2
2
2
2
2
48
48
48
48
48
48
85
85
85
85
85
85
0
0
0
0
0

High Clouds (% Sky Obscured)

97
100
100
100
100
100
100
21
21
21
21
21
21
0
0
0
0
0
0
70
70
70
70
70

ISS Passover

Visibility (miles)

10
10
10
10
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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

Precipitation Probability (%)

0
0
10
12
13
12
10
0
0
0
0
0
0
0
0
0
0
0
0
15
17
18
19
17

Precipitation Amount (mm)

0
0
0.01
0.03
0.05
0.03
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.02
0.02
0.01

Wind Speed/Direction (mph)

9
10
11
12
13
14
15
15
15
15
15
16
17
18
19
20
20
20
20
20
20
21
22
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

74
79
83
88
92
93
92
90
89
89
90
91
92
89
85
80
74
71
69
68
67
68
69
70

Pressure (mb)

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

Ozone (du)

393
393
392
392
391
390
389
388
388
387
387
387
386
386
385
385
384
383
381
379
378
377
377
377

Sunday 29

Waxing Gibbous 100%

20:02

06:29

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

Sun - Rise: 05:42, Set: 20:47, Transit: 13:15. Moon - Rise: 20:02, Set: 06:29. Civil Dark: 21:28 - 05:00. Nautical Dark: 22:23 - 04:05. Astro Dark: 23:37 - 02:49

Total Clouds (% Sky Obscured)

88
67
67
67
67
67
67
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0

Low Clouds (% Sky Obscured)

62
53
53
53
53
53
53
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
57
57
57
57
57
57
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

70
9
9
9
9
9
9
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-

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
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

Precipitation Probability (%)

14
0
0
13
13
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0
0
0.01
0.01
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

22
21
21
21
21
21
21
21
20
20
20
19
19
19
19
18
17
16
15
15
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

3
2
2
1
1
0
0
0
0
0
-0
-1
-1
-1
-0
1
2
3
4
5
5
5
5
5

Dew Point (°C)

3
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

Relative Humidity (%)

72
73
75
77
78
78
78
78
78
80
83
85
86
84
80
76
71
67
64
63
63
63
64
66

Pressure (mb)

1012
1012
1012
1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011
1012
1012
1012
1012
1013
1013
1013
1013
1013

Ozone (du)

377
377
377
378
378
379
379
379
380
380
380
380
380
380
380
380
380
380
380
381
384
389
392
393

Forecast for Isle of Man (54.18,-4.63)

Generated: 23/04/18 18:02:45. Forecast: 23/04/18 to 29/04/18. Timezone: UTC+1.00