Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

09:26

02:14

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
18 Bad
19 OK
20 OK
21 OK
22 OK
23 OK
00 OK
01 Bad
02 OK
03 OK
04 OK

Sun - Rise: 05:25, Set: 21:00, Transit: 13:12. Moon - Rise: 09:26, Set: 02:14. Civil Dark: 21:40 - 04:43. Nautical Dark: 22:35 - 03:48. Astro Dark: 23:54 - 02:27

Total Clouds (% Sky Obscured)

27
29
34
56
41
52
59
57
59
64
52
56
61
62
27
22
13
6
18
28
52
31
21
23

Low Clouds (% Sky Obscured)

26
27
30
53
20
34
34
39
29
41
48
39
56
55
19
12
12
6
13
17
48
29
18
20

Medium Clouds (% Sky Obscured)

6
12
21
13
33
41
45
39
48
52
20
31
17
21
13
14
2
1
3
16
16
6
9
8

High Clouds (% Sky Obscured)

0
0
0
0
0
0
2
20
12
2
9
14
13
17
9
4
1
0
6
9
1
0
4
3

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
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
None
None
None

Precipitation Probability (%)

18
20
26
28
31
31
33
34
31
27
23
17
16
17
14
8
11
17
14
8
6
5
4
4

Precipitation Amount (mm)

0.04
0.01
0.12
0.15
0.24
0.31
0.4
0.42
0.33
0.29
0.23
0.17
0.13
0.14
0.1
0.04
0.06
0.1
0.08
0.04
0.02
0.02
0.01
0.02

Wind Speed/Direction (mph)

14
14
15
15
15
15
15
15
15
16
17
17
17
16
15
14
13
13
13
13
14
14
14
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

7
7
10
10
11
11
12
12
13
13
13
13
12
12
11
11
10
7
6
6
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

88
91
92
91
90
90
89
89
87
85
82
81
80
80
80
82
85
87
88
86
86
86
87
87

Pressure (mb)

1004
1005
1006
1006
1007
1008
1008
1009
1010
1010
1010
1011
1011
1011
1012
1012
1013
1013
1014
1014
1014
1014
1014
1014

Ozone (du)

381
379
379
379
380
382
385
386
383
384
384
386
388
388
389
391
392
392
392
390
395
393
391
388

Tuesday 18

Waxing Crescent 39%

10:34

02:43

05 OK
06 Bad
07 OK
08 OK
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 OK
22 OK
23 Good
00 Good
01 Good
02 Good
03 OK
04 OK

Sun - Rise: 05:23, Set: 21:01, Transit: 13:12. Moon - Rise: 10:34, Set: 02:43. Civil Dark: 21:42 - 04:41. Nautical Dark: 22:37 - 03:46. Astro Dark: 23:58 - 02:23

Total Clouds (% Sky Obscured)

25
41
27
29
51
68
90
98
96
98
99
99
99
100
91
52
20
31
9
7
3
2
10
19

Low Clouds (% Sky Obscured)

23
26
25
24
28
58
72
45
42
34
53
31
22
87
65
16
20
25
9
7
3
2
10
19

Medium Clouds (% Sky Obscured)

6
2
6
11
15
31
34
38
49
75
95
98
98
100
86
17
7
16
1
0
0
0
0
1

High Clouds (% Sky Obscured)

2
21
2
4
33
23
73
96
93
98
98
98
95
91
21
43
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
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

4
4
5
6
8
15
35
46
47
45
47
51
54
53
42
32
11
7
5
6
6
6
7
8

Precipitation Amount (mm)

0.01
0.01
0.01
0.01
0.03
0.08
0.23
0.38
0.5
0.45
0.46
0.53
0.57
0.59
0.49
0.33
0.07
0.04
0.03
0.03
0.03
0.02
0.04
0.05

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
7
10
11
12
12
12
13
13
12
12
12
11
11
10
7
7
6
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

89
91
90
88
87
87
88
89
87
86
84
83
84
84
85
85
86
86
87
86
86
87
88
89

Pressure (mb)

1014
1015
1015
1015
1015
1015
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1017
1018

Ozone (du)

386
385
392
393
394
395
394
393
397
398
398
398
398
398
389
389
392
392
392
392
392
392
393
394

Wednesday 19

First Quarter 50%

11:48

03:07

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

Sun - Rise: 05:22, Set: 21:03, Transit: 13:12. Moon - Rise: 11:48, Set: 03:07. Civil Dark: 21:43 - 04:40. Nautical Dark: 22:39 - 03:44. Astro Dark: 00:02 - 02:18

Total Clouds (% Sky Obscured)

13
15
14
10
31
29
38
30
31
31
31
37
30
87
100
100
100
100
100
100
71
71
71
71

Low Clouds (% Sky Obscured)

13
14
13
9
14
23
23
20
24
23
24
29
23
24
18
18
18
18
18
18
0
0
0
0

Medium Clouds (% Sky Obscured)

2
4
2
5
26
20
31
24
19
18
19
26
16
17
7
7
7
7
7
7
70
70
70
70

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
2
81
100
100
100
100
100
100
2
2
2
2

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

Precipitation Probability (%)

7
5
4
4
4
5
5
9
12
13
9
6
5
4
2
0
2
2
2
3
14
15
9
5

Precipitation Amount (mm)

0.05
0.04
0.03
0.02
0.02
0.03
0.04
0.1
0.14
0.18
0.1
0.05
0.02
0.01
0.01
0
0.01
0.01
0.01
0.02
0.17
0.18
0.09
0.04

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
7
11
11
12
12
13
13
13
13
13
12
12
11
11
8
7
7
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

90
90
89
87
85
82
80
79
76
75
73
72
73
75
77
80
82
85
87
86
87
89
90
91

Pressure (mb)

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

Ozone (du)

396
397
394
394
392
390
389
388
393
392
389
384
377
373
371
368
364
361
358
357
361
360
359
359

Thursday 20

Waxing Gibbous 61%

13:05

03:28

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:21, Set: 21:04, Transit: 13:12. Moon - Rise: 13:05, Set: 03:28. Civil Dark: 21:45 - 04:38. Nautical Dark: 22:41 - 03:42. Astro Dark: 00:07 - 02:14

Total Clouds (% Sky Obscured)

71
71
99
99
99
99
99
99
100
100
100
100
100
100
83
83
83
83
83
83
48
48
48
48

Low Clouds (% Sky Obscured)

0
0
9
9
9
9
9
9
100
100
100
100
100
100
67
67
67
67
67
67
15
15
15
15

Medium Clouds (% Sky Obscured)

70
70
97
97
97
97
97
97
100
100
100
100
100
100
0
0
0
0
0
0
46
46
46
46

High Clouds (% Sky Obscured)

2
2
96
96
96
96
96
96
96
96
96
96
96
96
44
44
44
44
44
44
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
6
7
9
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
Very Light Rain
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
Light Rain
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

5
4
6
7
7
9
16
35
48
22
27
30
30
29
25
25
35
39
38
34
38
42
21
27

Precipitation Amount (mm)

0.03
0.03
0.07
0.07
0.08
0.09
0.14
0.29
0.43
0.15
0.24
0.29
0.27
0.22
0.17
0.18
0.23
0.27
0.26
0.3
0.47
0.79
0.21
0.35

Wind Speed/Direction (mph)

9
10
11
12
14
15
16
17
18
21
23
23
24
23
21
22
23
24
24
24
25
24
23
23

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
7
7
10
11
11
12
12
12
12
12
12
12
12
12
12
12
12
11
11
10
10
10
10

Dew Point (°C)

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

Relative Humidity (%)

92
94
93
92
91
91
93
94
96
93
93
90
88
87
86
86
88
90
91
91
92
92
92
92

Pressure (mb)

1024
1024
1024
1023
1023
1023
1022
1022
1022
1018
1018
1018
1018
1018
1019
1018
1017
1017
1016
1015
1013
1012
1011
1010

Ozone (du)

357
357
366
365
362
358
357
356
357
356
354
352
352
353
328
326
329
330
334
337
350
356
359
365

Friday 21

Waxing Gibbous 72%

14:24

03:46

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:20, Set: 21:05, Transit: 13:13. Moon - Rise: 14:24, Set: 03:46. Civil Dark: 21:47 - 04:37. Nautical Dark: 22:43 - 03:40. Astro Dark: 00:11 - 02:09

Total Clouds (% Sky Obscured)

48
48
38
38
38
38
38
38
75
75
75
75
75
75
73
73
73
73
73
73
41
41
41
41

Low Clouds (% Sky Obscured)

15
15
24
24
24
24
24
24
58
58
58
58
58
58
39
39
39
39
39
39
38
38
38
38

Medium Clouds (% Sky Obscured)

46
46
27
27
27
27
27
27
66
66
66
66
66
66
72
72
72
72
72
72
14
14
14
14

High Clouds (% Sky Obscured)

0
0
13
13
13
13
13
13
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0

ISS Passover

Visibility (miles)

10
10
9
10
9
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
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 (%)

24
30
29
30
24
22
26
36
45
54
54
56
56
56
53
52
54
54
53
55
56
56
53
53

Precipitation Amount (mm)

0.27
0.29
0.26
0.24
0.23
0.26
0.26
0.34
0.42
0.47
0.47
0.5
0.5
0.5
0.58
0.5
0.39
0.32
0.29
0.29
0.28
0.26
0.27
0.28

Wind Speed/Direction (mph)

24
24
22
23
23
24
25
26
28
28
30
30
31
32
33
33
34
34
33
33
33
33
33
33

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
11
12
12
12
13
13
12
12
12
11
11
11
11
11
11
10
10
5
5
5
5
5

Dew Point (°C)

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

Relative Humidity (%)

94
95
95
93
91
91
92
93
94
96
95
93
91
90
88
88
89
91
93
94
94
94
93
93

Pressure (mb)

1009
1008
1009
1009
1008
1007
1007
1006
1005
1005
1004
1003
1003
1003
1002
1002
1002
1002
1002
1001
1001
1001
1001
1001

Ozone (du)

370
378
376
376
374
370
371
373
367
367
368
368
371
374
373
373
372
371
372
373
374
373
371
369

Saturday 22

Waxing Gibbous 82%

15:45

04:04

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
18 Bad
19 Bad
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
02 OK
03 OK
04 OK

Sun - Rise: 05:19, Set: 21:07, Transit: 13:13. Moon - Rise: 15:45, Set: 04:04. Civil Dark: 21:48 - 04:36. Nautical Dark: 22:45 - 03:38. Astro Dark: 00:16 - 02:04

Total Clouds (% Sky Obscured)

41
41
61
61
61
61
61
61
31
31
31
31
31
31
21
21
21
21
21
21
25
25
25
25

Low Clouds (% Sky Obscured)

38
38
48
48
48
48
48
48
27
27
27
27
27
27
21
21
21
21
21
21
13
13
13
13

Medium Clouds (% Sky Obscured)

14
14
43
43
43
43
43
43
17
17
17
17
17
17
0
0
0
0
0
0
21
21
21
21

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
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
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 (%)

52
49
46
40
32
29
30
36
39
39
36
34
33
31
28
24
19
15
13
12
11
9
7
7

Precipitation Amount (mm)

0.26
0.21
0.17
0.15
0.13
0.13
0.16
0.23
0.27
0.22
0.17
0.16
0.17
0.18
0.17
0.13
0.09
0.06
0.05
0.04
0.03
0.02
0.02
0.02

Wind Speed/Direction (mph)

32
31
31
30
29
29
30
30
30
30
29
28
27
26
25
23
21
20
19
17
16
15
14
13

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
5
10
10
11
11
11
12
12
12
12
12
12
12
12
11
11
11
10
10
7
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

93
92
92
91
91
91
92
93
93
91
87
83
81
81
81
82
83
85
87
89
90
91
93
94

Pressure (mb)

1001
1001
1002
1002
1002
1003
1003
1003
1004
1004
1004
1004
1005
1005
1005
1006
1007
1007
1007
1007
1007
1007
1007
1007

Ozone (du)

368
367
367
367
367
366
366
366
367
367
367
367
368
368
369
368
367
367
367
368
368
369
371
372

Sunday 23

Waxing Gibbous 90%

17:09

04:24

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
18 Bad
19 Bad
20 Bad
21 Bad
22 Bad
23 Bad
00 Bad
01 Bad
02 Bad
03 Bad
04 Bad

Sun - Rise: 05:17, Set: 21:08, Transit: 13:13. Moon - Rise: 17:09, Set: 04:24. Civil Dark: 21:50 - 04:35. Nautical Dark: 22:47 - 03:36. Astro Dark: 00:21 - 01:59

Total Clouds (% Sky Obscured)

25
25
98
98
98
98
98
98
100
100
100
100
100
100
99
99
99
99
99
99
97
97
97
97

Low Clouds (% Sky Obscured)

13
13
27
27
27
27
27
27
25
25
25
25
25
25
30
30
30
30
30
30
10
10
10
10

Medium Clouds (% Sky Obscured)

21
21
21
21
21
21
21
21
100
100
100
100
100
100
30
30
30
30
30
30
25
25
25
25

High Clouds (% Sky Obscured)

0
0
97
97
97
97
97
97
93
93
93
93
93
93
98
98
98
98
98
98
95
95
95
95

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
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 (%)

8
11
12
9
8
7
7
7
6
5
4
4
4
4
0
5
9
15
18
20
23
24
23
19

Precipitation Amount (mm)

0.02
0.03
0.04
0.03
0.02
0.02
0.02
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0
0.02
0.11
0.21
0.25
0.26
0.25
0.22
0.17
0.11

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
10
10
10
10
10
10
10
9
9
9
9
9
9
9
9
10
10
10
10
10

Relative Humidity (%)

94
94
94
91
88
85
83
82
80
79
77
76
76
76
78
81
86
91
95
97
98
99
100
100

Pressure (mb)

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

Ozone (du)

373
374
375
375
376
377
378
379
380
379
377
377
379
382
382
379
374
370
366
363
360
357
355
354

Forecast for Adam's Lane, Plymouth, Devon PL9 0DY, UK (50.33,-4.09)

Generated: 17/05/21 05:17:00. Forecast: 17/05/21 to 23/05/21. Timezone: UTC+1.00