Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

09:20

02:12

05 Good
06 OK
07 Good
08 OK
09 OK
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 OK
00 OK
01 OK
02 OK
03 Good
04 OK

Sun - Rise: 05:19, Set: 20:57, Transit: 13:08. Moon - Rise: 09:20, Set: 02:12. Civil Dark: 21:38 - 04:37. Nautical Dark: 22:34 - 03:40. Astro Dark: 23:57 - 02:15

Total Clouds (% Sky Obscured)

1
1
2
13
31
46
41
57
59
63
95
83
66
52
40
41
23
27
36
29
13
24
14
7

Low Clouds (% Sky Obscured)

1
1
2
13
25
31
17
34
31
49
20
20
33
24
17
14
7
2
1
2
3
14
13
6

Medium Clouds (% Sky Obscured)

0
0
0
2
19
34
25
34
31
10
83
67
51
39
16
18
19
26
35
28
10
18
8
6

High Clouds (% Sky Obscured)

0
0
0
0
0
4
23
27
31
34
88
69
24
16
23
28
6
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
9
8
8
9
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
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
Very Light Rain
None
None
None
None
None
None

Precipitation Probability (%)

10
10
8
8
9
10
20
27
34
48
50
47
36
25
25
7
7
6
4
4
4
0
0
0

Precipitation Amount (mm)

0.02
0
0.02
0.02
0.03
0.06
0.16
0.25
0.33
0.74
0.74
0.7
0.46
0.32
0.2
0.04
0.05
0.03
0.02
0.02
0.02
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
7
8
9
9
10
11
11
12
11
11
11
10
10
9
9
8
7
7
6
6
6
7
7

Relative Humidity (%)

86
89
90
90
87
85
84
83
82
83
84
84
83
82
82
83
84
84
85
85
85
86
87
87

Pressure (mb)

1003
1004
1004
1005
1005
1006
1007
1007
1008
1009
1009
1009
1010
1010
1011
1011
1012
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

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

Tuesday 18

Waxing Crescent 39%

10:28

02:41

05 OK
06 OK
07 OK
08 OK
09 OK
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 OK
01 OK
02 OK
03 Good
04 Good

Sun - Rise: 05:18, Set: 20:59, Transit: 13:08. Moon - Rise: 10:28, Set: 02:41. Civil Dark: 21:40 - 04:35. Nautical Dark: 22:36 - 03:38. Astro Dark: 00:01 - 02:11

Total Clouds (% Sky Obscured)

8
13
15
37
39
48
56
88
89
91
95
98
99
100
99
99
95
73
32
12
16
13
3
3

Low Clouds (% Sky Obscured)

5
7
12
29
34
39
48
73
18
25
26
29
36
40
30
59
15
16
29
12
16
13
2
2

Medium Clouds (% Sky Obscured)

6
11
9
4
14
31
24
13
15
32
63
93
95
98
98
98
91
48
13
2
2
6
2
2

High Clouds (% Sky Obscured)

0
0
2
13
2
6
16
39
87
88
92
96
98
97
95
88
82
66
0
0
0
0
0
1

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
10
10
10
10
9
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
Very Light Rain
Very Light Rain
Light Rain
Light Rain
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
None
None
None

Precipitation Probability (%)

0
0
0
0
4
5
13
36
47
42
39
35
31
24
31
32
20
11
7
7
6
3
3
2

Precipitation Amount (mm)

0
0
0
0
0.01
0.02
0.1
0.34
0.54
0.46
0.46
0.35
0.27
0.17
0.32
0.4
0.26
0.14
0.06
0.06
0.05
0.01
0.01
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
6
10
11
12
13
13
14
14
14
14
14
13
12
12
11
10
7
7
6
6
6
6

Dew Point (°C)

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

Relative Humidity (%)

89
90
89
87
84
82
82
82
81
81
80
79
78
79
82
85
86
87
88
88
87
87
87
88

Pressure (mb)

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

Ozone (du)

388
386
389
389
389
391
393
394
396
397
397
398
398
398
392
392
393
393
394
395
395
396
396
396

Wednesday 19

First Quarter 50%

11:43

03:04

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

Sun - Rise: 05:17, Set: 21:00, Transit: 13:08. Moon - Rise: 11:43, Set: 03:04. Civil Dark: 21:42 - 04:34. Nautical Dark: 22:38 - 03:36. Astro Dark: 00:06 - 02:06

Total Clouds (% Sky Obscured)

14
2
3
2
37
32
32
45
40
42
41
41
32
27
12
12
12
12
12
12
22
22
22
22

Low Clouds (% Sky Obscured)

2
2
3
2
36
30
24
35
28
24
31
31
21
21
11
11
11
11
11
11
0
0
0
0

Medium Clouds (% Sky Obscured)

13
2
1
1
5
20
26
36
33
38
32
36
28
21
6
6
6
6
6
6
0
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
22
22
22
22

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

Precipitation Probability (%)

2
0
0
0
3
3
3
3
5
9
7
4
4
0
1
1
0
0
0
2
10
19
18
15

Precipitation Amount (mm)

0.01
0
0
0
0.01
0.02
0.03
0.06
0.09
0.18
0.22
0.22
0.11
0
0.01
0.01
0
0
0
0.01
0.13
0.18
0.13
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
91
90
87
83
77
74
70
67
65
65
66
67
68
70
74
78
81
84
86
87
89
89
89

Pressure (mb)

1017
1017
1018
1019
1019
1020
1020
1020
1021
1021
1021
1021
1021
1022
1022
1022
1023
1023
1023
1023
1022
1023
1023
1022

Ozone (du)

396
396
399
397
397
394
391
389
393
391
389
384
382
381
381
375
372
368
366
363
365
365
363
362

Thursday 20

Waxing Gibbous 61%

13:00

03:24

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: 05:15, Set: 21:02, Transit: 13:08. Moon - Rise: 13:00, Set: 03:24. Civil Dark: 21:43 - 04:32. Nautical Dark: 22:40 - 03:34. Astro Dark: 00:11 - 02:01

Total Clouds (% Sky Obscured)

22
22
100
100
100
100
100
100
99
99
99
99
99
99
100
100
100
100
100
100
42
42
42
42

Low Clouds (% Sky Obscured)

0
0
27
27
27
27
27
27
19
19
19
19
19
19
100
100
100
100
100
100
41
41
41
41

Medium Clouds (% Sky Obscured)

0
0
99
99
99
99
99
99
98
98
98
98
98
98
25
25
25
25
25
25
6
6
6
6

High Clouds (% Sky Obscured)

22
22
98
98
98
98
98
98
86
86
86
86
86
86
63
63
63
63
63
63
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
None
None
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
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

14
12
10
8
5
5
9
23
39
34
13
7
7
16
20
25
20
20
22
40
19
28
20
21

Precipitation Amount (mm)

0.09
0.09
0.1
0.08
0.07
0.06
0.12
0.31
0.41
0.26
0.09
0.04
0.04
0.09
0.13
0.17
0.14
0.14
0.18
0.31
0.19
0.48
0.33
0.31

Wind Speed/Direction (mph)

8
8
9
11
14
16
18
20
19
21
21
22
22
22
19
20
20
22
22
23
23
23
23
22

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

92
93
92
89
87
87
89
92
95
92
88
87
86
86
87
87
86
87
90
92
92
92
92
93

Pressure (mb)

1022
1022
1021
1020
1020
1019
1019
1019
1017
1017
1017
1017
1017
1017
1019
1019
1018
1017
1016
1015
1013
1012
1011
1010

Ozone (du)

361
359
364
363
361
360
360
359
360
359
356
354
352
350
329
328
329
330
331
333
345
350
356
363

Friday 21

Waxing Gibbous 72%

14:20

03:43

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: 05:14, Set: 21:03, Transit: 13:09. Moon - Rise: 14:20, Set: 03:43. Civil Dark: 21:45 - 04:31. Nautical Dark: 22:43 - 03:33. Astro Dark: 00:17 - 01:55

Total Clouds (% Sky Obscured)

42
42
34
34
34
34
34
34
63
63
63
63
63
63
96
96
96
96
96
96
21
21
21
21

Low Clouds (% Sky Obscured)

41
41
19
19
19
19
19
19
40
40
40
40
40
40
92
92
92
92
92
92
7
7
7
7

Medium Clouds (% Sky Obscured)

6
6
24
24
24
24
24
24
52
52
52
52
52
52
88
88
88
88
88
88
18
18
18
18

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
31
31
31
31
31
31
5
5
5
5
5
5
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
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 (%)

15
19
23
22
25
17
24
34
41
48
45
44
43
42
26
24
28
36
35
34
35
38
43
46

Precipitation Amount (mm)

0.19
0.22
0.21
0.12
0.18
0.15
0.22
0.35
0.45
0.39
0.26
0.22
0.18
0.17
0.12
0.1
0.1
0.11
0.1
0.09
0.1
0.12
0.14
0.16

Wind Speed/Direction (mph)

22
21
21
21
23
23
24
26
26
27
28
28
28
28
30
30
30
30
31
31
31
31
31
30

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

94
93
94
92
91
89
88
89
90
91
91
90
88
86
82
83
85
87
88
90
91
90
90
90

Pressure (mb)

1009
1008
1009
1009
1008
1007
1006
1006
1005
1004
1004
1003
1003
1002
1001
1001
1001
1001
1000
1000
1000
1000
999
999

Ozone (du)

367
371
371
374
374
371
368
371
366
365
365
365
366
369
373
372
371
369
370
371
371
371
370
369

Saturday 22

Waxing Gibbous 82%

15:41

04:00

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 OK
22 OK
23 OK
00 OK
01 Good
02 OK
03 OK
04 OK

Sun - Rise: 05:13, Set: 21:04, Transit: 13:09. Moon - Rise: 15:41, Set: 04:00. Civil Dark: 21:46 - 04:30. Nautical Dark: 22:45 - 03:31. Astro Dark: 00:22 - 01:48

Total Clouds (% Sky Obscured)

21
21
81
81
81
81
81
81
48
48
48
48
48
48
25
25
25
25
25
25
6
6
6
6

Low Clouds (% Sky Obscured)

7
7
81
81
81
81
81
81
27
27
27
27
27
27
24
24
24
24
24
24
6
6
6
6

Medium Clouds (% Sky Obscured)

18
18
9
9
9
9
9
9
41
41
41
41
41
41
9
9
9
9
9
9
1
1
1
1

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1

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
None
None
None
None
None
Very Light Rain

Precipitation Probability (%)

44
38
32
30
27
25
22
19
22
29
34
37
37
37
33
25
14
7
5
0
0
0
4
6

Precipitation Amount (mm)

0.14
0.11
0.09
0.08
0.09
0.09
0.09
0.09
0.1
0.11
0.12
0.14
0.16
0.18
0.17
0.11
0.04
0.01
0.01
0
0
0
0.01
0.01

Wind Speed/Direction (mph)

30
31
31
30
30
29
29
29
28
28
28
27
27
25
24
22
21
19
18
17
17
16
15
14

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
9
10
10
10
10
10
10
10
10
9
9
8
8
8
8
9
9
8
8
9
9

Relative Humidity (%)

89
88
87
87
87
87
85
83
83
84
84
85
81
77
75
76
80
83
85
86
87
88
90
90

Pressure (mb)

999
1000
1000
1000
1001
1001
1002
1002
1003
1003
1003
1003
1003
1004
1004
1005
1005
1006
1006
1007
1007
1007
1007
1007

Ozone (du)

368
368
367
366
366
366
366
365
365
366
366
367
366
366
366
366
367
367
367
366
366
367
367
368

Sunday 23

Waxing Gibbous 90%

17:05

04:19

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: 05:12, Set: 21:06, Transit: 13:09. Moon - Rise: 17:05, Set: 04:19. Civil Dark: 21:48 - 04:28. Nautical Dark: 22:47 - 03:29. Astro Dark: 00:29 - 01:41

Total Clouds (% Sky Obscured)

6
6
98
98
98
98
98
98
96
96
96
96
96
96
98
98
98
98
98
98
95
95
95
95

Low Clouds (% Sky Obscured)

6
6
2
2
2
2
2
2
34
34
34
34
34
34
13
13
13
13
13
13
4
4
4
4

Medium Clouds (% Sky Obscured)

1
1
3
3
3
3
3
3
93
93
93
93
93
93
19
19
19
19
19
19
3
3
3
3

High Clouds (% Sky Obscured)

1
1
98
98
98
98
98
98
71
71
71
71
71
71
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

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

Precipitation Probability (%)

4
3
3
3
4
5
6
6
6
5
4
3
4
3
3
3
3
4
11
23
26
25
18
13

Precipitation Amount (mm)

0.02
0.01
0.01
0.01
0.01
0.02
0.02
0.03
0.03
0.02
0.01
0.01
0.01
0.01
0.01
0.02
0.05
0.09
0.19
0.5
0.76
0.56
0.24
0.08

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

10
10
11
11
12
13
13
14
14
15
15
15
14
14
13
13
12
11
10
8
8
7
7
7

Dew Point (°C)

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

Relative Humidity (%)

90
89
87
85
83
82
80
78
76
75
74
75
76
75
76
78
83
87
91
96
99
99
98
99

Pressure (mb)

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

Ozone (du)

369
370
371
373
374
376
377
379
379
379
378
377
377
377
377
376
375
373
370
366
363
360
358
356

Forecast for Beer, Devon, UK (50.70,-3.09)

Generated: 17/05/21 05:18:13. Forecast: 17/05/21 to 23/05/21. Timezone: UTC+1.00