Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Gibbous 95%

22:45

07:04

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

Sun - Rise: 05:03, Set: 20:56, Transit: 13:00. Moon - Rise: 22:45, Set: 07:04. Civil Dark: 21:38 - 04:20. Nautical Dark: 22:38 - 03:20. Astro Dark: 00:22 - 01:29

Total Clouds (% Sky Obscured)

36
53
47
55
52
49
70
46
36
29
16
13
9
4
1
0
1
0
4
8
33
58
70
66

Low Clouds (% Sky Obscured)

31
39
16
13
24
20
51
29
5
11
0
0
1
0
0
0
0
0
1
0
0
0
8
18

Medium Clouds (% Sky Obscured)

20
34
44
52
44
48
47
44
36
27
16
13
9
4
1
0
0
0
1
0
0
6
19
3

High Clouds (% Sky Obscured)

2
16
0
4
13
6
23
0
0
0
0
0
0
0
0
0
1
0
2
8
33
58
67
59

ISS Passover

Visibility (miles)

10
3
5
8
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

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
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

19
19
16
13
12
14
15
15
12
6
3
2
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.17
0.17
0.21
0.01
0.15
0.14
0.15
0.14
0.11
0.08
0.05
0.02
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

17
19
19
20
20
20
20
19
18
16
15
14
13
12
11
8
7
7
7
7
11
13
15
17

Dew Point (°C)

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

Relative Humidity (%)

67
56
52
49
51
53
55
58
60
64
67
69
70
71
71
71
72
74
78
79
75
70
64
60

Pressure (mb)

1013
1013
1013
1013
1013
1013
1013
1013
1014
1015
1015
1015
1015
1016
1016
1016
1016
1017
1017
1017
1018
1018
1018
1019

Ozone (du)

358
357
358
360
361
360
358
356
354
351
349
348
347
346
345
344
343
343
343
343
343
343
344
347

Tuesday 21

Waning Gibbous 89%

23:45

07:52

12 Bad
13 OK
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 Good
08 Good
09 Good
10 Good
11 Good

Sun - Rise: 05:02, Set: 20:57, Transit: 13:00. Moon - Rise: 23:45, Set: 07:52. Civil Dark: 21:40 - 04:19. Nautical Dark: 22:40 - 03:18. Astro Dark: 00:31 - 01:15

Total Clouds (% Sky Obscured)

56
33
85
99
99
100
92
62
64
52
59
66
70
62
52
71
54
88
23
2
1
2
2
5

Low Clouds (% Sky Obscured)

25
19
1
4
1
36
34
0
2
12
30
21
24
9
7
23
22
88
22
2
1
2
2
2

Medium Clouds (% Sky Obscured)

0
17
85
99
99
100
91
62
64
52
56
63
62
57
50
68
48
21
7
1
0
0
1
5

High Clouds (% Sky Obscured)

43
14
0
0
0
0
0
0
0
0
0
0
17
13
3
0
0
0
0
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

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
2
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

18
19
20
20
21
21
21
20
18
16
15
13
12
11
11
10
9
9
9
10
12
15
16
18

Feels Like (°C)

18
19
20
20
21
21
21
20
18
16
15
13
12
11
11
9
9
8
9
10
12
15
16
18

Dew Point (°C)

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

Relative Humidity (%)

57
54
51
49
48
48
48
50
54
59
63
67
68
68
67
64
63
62
61
59
56
52
50
48

Pressure (mb)

1018
1018
1018
1018
1018
1018
1018
1019
1019
1019
1020
1020
1020
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

350
351
349
344
340
338
336
334
333
332
331
331
330
330
331
331
332
332
332
331
331
331
331
331

Wednesday 22

Waning Gibbous 82%

00:35

08:48

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

Sun - Rise: 05:01, Set: 20:58, Transit: 13:00. Moon - Rise: 00:35, Set: 08:48. Civil Dark: 21:42 - 04:17. Nautical Dark: 22:42 - 03:16. Astro Dark: 00:45 - N/A

Total Clouds (% Sky Obscured)

68
77
84
83
80
77
91
90
50
31
56
47
34
38
48
68
95
98
98
98
98
98
98
98

Low Clouds (% Sky Obscured)

25
2
14
6
8
0
0
8
2
0
5
11
5
3
0
4
6
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

66
76
81
81
78
77
88
88
50
31
56
45
34
31
45
66
93
96
94
88
88
88
88
88

High Clouds (% Sky Obscured)

0
2
19
28
30
12
37
12
1
0
0
0
0
9
7
4
45
70
84
96
96
96
96
96

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

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 (%)

1
2
2
2
2
2
2
2
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0.01
0.02
0.04
0.08
0.11
0.12
0.11
0.1
0.08
0.06
0.03
0.01
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
20
21
21
21
21
21
20
19
17
15
13
12
12
11
10
10
10
10
12
13
16
18
19

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

47
47
47
47
48
49
50
50
53
57
61
64
66
67
70
73
75
77
77
73
66
58
52
48

Pressure (mb)

1021
1021
1021
1020
1020
1020
1020
1019
1019
1020
1020
1020
1020
1019
1019
1019
1019
1019
1018
1018
1018
1018
1018
1018

Ozone (du)

331
332
333
335
335
334
331
330
331
334
335
335
333
332
331
331
331
333
336
338
338
337
337
338

Thursday 23

Waning Gibbous 73%

01:16

09:49

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: 04:59, Set: 21:00, Transit: 13:00. Moon - Rise: 01:16, Set: 09:49. Civil Dark: 21:43 - 04:16. Nautical Dark: 22:45 - 03:14. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
99
99
99
99
99
99
100
100
100
100
100
100
100
100
100
100
100
100
41
41
41
41
41

Low Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
13
13
13
13
13
13
35
35
35
35
35

Medium Clouds (% Sky Obscured)

88
98
98
98
98
98
98
100
100
100
100
100
100
100
100
100
100
100
100
22
22
22
22
22

High Clouds (% Sky Obscured)

96
98
98
98
98
98
98
98
98
98
98
98
98
0
0
0
0
0
0
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
8
8
7
7
7

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

Precipitation Probability (%)

0
0
0
0
1
1
2
2
2
0
0
0
0
0
1
2
5
14
32
38
41
36
34
32

Precipitation Amount (mm)

0
0
0
0
0.01
0.01
0.02
0.02
0.01
0
0
0
0
0
0.01
0.03
0.08
0.15
0.24
0.3
0.28
0.22
0.2
0.28

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

21
22
22
23
22
21
21
20
19
17
16
14
13
13
12
12
12
12
12
12
13
15
16
16

Feels Like (°C)

21
22
22
23
22
21
21
20
19
17
16
14
13
13
12
12
12
12
12
12
13
15
16
16

Dew Point (°C)

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

Relative Humidity (%)

45
42
42
43
45
47
49
50
51
52
55
58
62
67
74
82
87
89
89
87
83
78
72
69

Pressure (mb)

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

Ozone (du)

340
342
342
342
342
343
344
346
348
349
351
350
350
349
347
346
345
347
350
353
357
361
365
368

Friday 24

Waning Gibbous 64%

01:48

10:53

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 Good
02 Good
03 Good
04 Good
05 Good
06 Good
07 Good
08 Good
09 Good
10 Good
11 Good

Sun - Rise: 04:58, Set: 21:01, Transit: 13:00. Moon - Rise: 01:48, Set: 10:53. Civil Dark: 21:45 - 04:15. Nautical Dark: 22:47 - 03:12. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

41
100
100
100
100
100
100
100
100
100
100
100
100
6
6
6
6
6
6
6
6
6
6
6

Low Clouds (% Sky Obscured)

35
80
80
80
80
80
80
12
12
12
12
12
12
6
6
6
6
6
6
0
0
0
0
0

Medium Clouds (% Sky Obscured)

22
67
67
67
67
67
67
100
100
100
100
100
100
0
0
0
0
0
0
4
4
4
4
4

High Clouds (% Sky Obscured)

0
100
100
100
100
100
100
98
98
98
98
98
98
0
0
0
0
0
0
2
2
2
2
2

ISS Passover

Visibility (miles)

6
7
9
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

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
None
None

Precipitation Probability (%)

29
24
16
9
6
5
4
4
2
1
0
0
0
2
2
0
0
0
2
0
0
0
0
0

Precipitation Amount (mm)

0.44
0.52
0.4
0.22
0.13
0.12
0.14
0.14
0.07
0.01
0
0
0
0.01
0.01
0
0
0
0.01
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

67
65
61
57
56
57
59
62
63
67
69
71
74
77
79
81
82
84
83
81
77
71
66
62

Pressure (mb)

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

Ozone (du)

370
371
368
364
361
357
354
352
350
350
348
345
340
336
334
331
329
326
324
321
319
317
315
314

Saturday 25

Waning Gibbous 54%

02:15

11:58

12 Good
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: 04:57, Set: 21:02, Transit: 13:00. Moon - Rise: 02:15, Set: 11:58. Civil Dark: 21:46 - 04:13. Nautical Dark: 22:49 - 03:10. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

6
99
99
99
99
99
99
95
95
95
95
95
95
98
98
98
98
98
98
100
100
100
100
100

Low Clouds (% Sky Obscured)

0
98
98
98
98
98
98
59
59
59
59
59
59
94
94
94
94
94
94
100
100
100
100
100

Medium Clouds (% Sky Obscured)

4
65
65
65
65
65
65
45
45
45
45
45
45
50
50
50
50
50
50
16
16
16
16
16

High Clouds (% Sky Obscured)

2
35
35
35
35
35
35
89
89
89
89
89
89
68
68
68
68
68
68
91
91
91
91
91

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

None
None
None
None
None
None
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
None

Precipitation Probability (%)

0
0
0
0
0
0
1
1
1
0
0
0
0
0
0
0
0
4
8
14
14
12
7
4

Precipitation Amount (mm)

0
0
0
0
0
0
0.01
0.01
0.01
0
0
0
0
0
0
0
0
0.01
0.06
0.1
0.1
0.07
0.05
0.04

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

19
19
20
20
21
21
21
21
20
18
17
16
15
14
14
13
12
12
12
12
14
17
19
19

Feels Like (°C)

19
19
20
20
21
21
21
21
20
18
17
16
15
14
14
13
12
12
12
12
14
17
19
19

Dew Point (°C)

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

Relative Humidity (%)

60
59
57
55
54
55
56
58
60
63
67
70
72
75
77
79
83
87
90
90
85
78
73
71

Pressure (mb)

1018
1018
1018
1018
1017
1017
1017
1017
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017

Ozone (du)

313
312
309
306
303
300
298
296
296
296
296
295
293
292
293
293
294
294
295
296
297
298
300
300

Sunday 26

Third Quarter 45%

02:38

11:58

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: 04:56, Set: 21:04, Transit: 13:00. Moon - Rise: 02:38, Set: 11:58. Civil Dark: 21:48 - 04:12. Nautical Dark: 22:51 - 03:08. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
98
98
98
98
98
98
95
95
95
95
95
95
97
97
97
97
97
97
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
95
95
95
95
95
95
24
24
24
24
24
24
7
7
7
7
7
7
100
100
100
100
100

Medium Clouds (% Sky Obscured)

16
0
0
0
0
0
0
0
0
0
0
0
0
69
69
69
69
69
69
34
34
34
34
34

High Clouds (% Sky Obscured)

91
91
91
91
91
91
91
92
92
92
92
92
92
90
90
90
90
90
90
79
79
79
79
79

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
6
4
6
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

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

Precipitation Probability (%)

3
2
2
2
2
2
3
2
4
7
5
9
9
9
0
0
0
4
2
3
2
2
0
3

Precipitation Amount (mm)

0.04
0.03
0.03
0.03
0.03
0.02
0.01
0.01
0.04
0.12
0.18
0.11
0.03
0.01
0
0
0
0.01
0.04
0.06
0.04
0.01
0
0.02

Wind Speed/Direction (mph)

11
13
11
12
15
10
11
16
14
11
12
11
11
11
10
10
11
11
12
12
12
13
13
12

Chance of Frost

Temperature (°C)

20
20
22
22
23
22
22
21
20
18
17
17
16
16
15
15
14
14
15
15
16
17
17
17

Feels Like (°C)

20
20
22
22
23
22
22
21
20
18
17
17
16
16
15
15
14
14
15
15
16
17
17
17

Dew Point (°C)

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

Relative Humidity (%)

69
67
63
60
58
58
58
60
61
66
69
72
74
77
79
82
84
84
83
81
78
75
73
73

Pressure (mb)

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

Ozone (du)

301
302
302
301
301
301
301
302
304
308
311
314
316
318
318
317
316
316
315
315
315
314
314
312

Forecast for Reading, Reading, UK (51.45,-0.98)

Generated: 20/05/19 14:25:27. Forecast: 20/05/19 to 26/05/19. Timezone: UTC+1.00