Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 17

Waxing Crescent 29%

09:06

02:05

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

Sun - Rise: 05:07, Set: 20:51, Transit: 12:59. Moon - Rise: 09:06, Set: 02:05. Civil Dark: 21:33 - 04:24. Nautical Dark: 22:31 - 03:25. Astro Dark: 00:02 - 01:51

Total Clouds (% Sky Obscured)

22
16
34
77
100
97
56
57
95
73
81
76
49
66
76
88
95
88
66
27
12
10
14
16

Low Clouds (% Sky Obscured)

17
6
28
76
100
97
55
56
95
70
73
26
16
33
10
25
20
17
32
15
4
1
2
3

Medium Clouds (% Sky Obscured)

18
6
11
10
5
2
6
15
27
31
29
70
24
30
11
23
25
22
13
16
1
2
2
2

High Clouds (% Sky Obscured)

0
7
2
0
0
0
2
3
5
2
10
20
36
44
73
83
93
83
55
8
9
9
12
13

ISS Passover

Visibility (miles)

10
10
10
10
10
10
9
8
9
8
7
6
8
9
5
9
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
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
None
None
None

Precipitation Probability (%)

15
14
16
17
27
41
38
34
33
45
45
53
61
66
65
51
29
27
16
12
11
0
0
0

Precipitation Amount (mm)

0.02
0
0.03
0.04
0.09
0.21
0.23
0.19
0.17
0.39
0.42
0.69
0.95
0.99
0.73
0.5
0.14
0.15
0.08
0.07
0.05
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
6
7
8
11
12
13
14
15
15
14
13
13
12
12
12
11
8
7
6
6
5
4
4

Dew Point (°C)

7
8
8
10
11
11
12
12
11
11
12
12
12
12
11
10
9
8
7
7
6
5
5
5

Relative Humidity (%)

92
95
96
98
98
95
91
85
80
81
85
91
94
95
94
92
91
90
89
88
87
88
90
92

Pressure (mb)

1001
1002
1003
1003
1004
1005
1005
1005
1006
1006
1007
1007
1007
1008
1008
1009
1010
1010
1011
1011
1011
1011
1012
1012

Ozone (du)

384
382
386
384
384
386
388
390
389
385
383
384
385
386
385
387
390
392
393
393
394
393
392
391

Tuesday 18

Waxing Crescent 39%

10:16

02:34

05 Good
06 OK
07 OK
08 Bad
09 OK
10 OK
11 OK
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: 05:06, Set: 20:52, Transit: 12:59. Moon - Rise: 10:16, Set: 02:34. Civil Dark: 21:34 - 04:22. Nautical Dark: 22:33 - 03:23. Astro Dark: 00:08 - 01:44

Total Clouds (% Sky Obscured)

14
17
35
46
34
22
31
43
42
48
96
88
94
98
97
99
99
99
98
100
100
99
99
65

Low Clouds (% Sky Obscured)

2
2
13
44
33
19
20
21
32
24
29
26
32
36
34
21
19
4
2
59
20
0
17
48

Medium Clouds (% Sky Obscured)

1
14
31
23
7
6
18
37
18
8
17
48
30
38
66
92
95
98
88
100
99
98
56
10

High Clouds (% Sky Obscured)

13
4
0
0
0
2
6
10
9
31
94
81
91
98
95
98
97
97
95
93
99
98
98
40

ISS Passover

Visibility (miles)

10
10
10
10
10
10
10
10
10
10
8
9
9
9
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
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
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 (%)

0
0
0
0
7
8
11
9
20
19
25
37
41
47
40
35
19
19
13
16
9
3
0
0

Precipitation Amount (mm)

0
0
0
0
0.01
0.05
0.09
0.08
0.13
0.16
0.25
0.45
0.52
0.51
0.33
0.3
0.17
0.2
0.17
0.25
0.08
0.01
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

6
7
8
9
11
12
13
13
14
15
16
15
14
14
13
12
11
10
10
9
9
8
8
8

Feels Like (°C)

4
5
6
7
11
12
13
13
14
15
16
15
14
14
13
12
11
10
8
8
7
7
6
6

Dew Point (°C)

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

Relative Humidity (%)

94
95
96
97
94
89
84
80
80
70
67
70
72
77
81
85
88
90
91
91
90
89
91
93

Pressure (mb)

1012
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1015
1015
1015
1015
1015
1015
1015
1015

Ozone (du)

390
390
389
389
389
389
390
390
389
389
388
389
390
391
394
394
395
395
394
393
395
395
395
395

Wednesday 19

First Quarter 50%

11:31

02:57

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

Sun - Rise: 05:05, Set: 20:54, Transit: 12:59. Moon - Rise: 11:31, Set: 02:57. Civil Dark: 21:36 - 04:21. Nautical Dark: 22:35 - 03:21. Astro Dark: 00:14 - 01:37

Total Clouds (% Sky Obscured)

41
42
32
72
32
31
24
28
38
48
55
31
34
31
31
31
31
31
31
31
3
3
3
3

Low Clouds (% Sky Obscured)

39
41
32
72
31
31
18
19
26
20
37
13
23
6
26
26
26
26
26
26
2
2
2
2

Medium Clouds (% Sky Obscured)

8
3
3
3
4
2
19
27
34
45
50
28
31
23
23
23
23
23
23
23
2
2
2
2

High Clouds (% Sky Obscured)

2
0
0
0
0
0
0
0
0
0
0
0
0
13
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

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

Precipitation Probability (%)

0
0
0
0
9
25
30
33
45
39
25
12
11
13
13
4
3
2
3
3
2
3
5
6

Precipitation Amount (mm)

0
0
0
0
0.06
0.24
0.35
0.36
0.5
0.41
0.27
0.12
0.1
0.1
0.12
0.04
0.01
0.02
0.01
0.01
0.01
0.02
0.05
0.07

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

8
8
8
9
11
12
13
13
13
15
15
16
16
15
14
13
12
10
10
9
8
8
7
7

Feels Like (°C)

6
6
6
7
11
12
13
13
13
15
15
16
16
15
14
13
12
10
8
7
7
6
5
5

Dew Point (°C)

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

Relative Humidity (%)

96
97
98
97
91
86
82
79
80
73
69
63
64
69
74
76
79
81
82
84
86
89
91
94

Pressure (mb)

1015
1015
1016
1017
1017
1017
1017
1018
1018
1019
1019
1019
1019
1020
1020
1021
1022
1022
1022
1023
1022
1022
1022
1022

Ozone (du)

395
394
399
399
398
397
396
394
395
393
391
386
382
377
376
378
380
382
382
381
380
378
374
370

Thursday 20

Waxing Gibbous 61%

12:49

03:16

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

Sun - Rise: 05:03, Set: 20:55, Transit: 12:59. Moon - Rise: 12:49, Set: 03:16. Civil Dark: 21:38 - 04:19. Nautical Dark: 22:37 - 03:19. Astro Dark: 00:22 - 01:28

Total Clouds (% Sky Obscured)

3
3
98
98
98
98
98
98
100
100
100
100
100
100
100
100
100
100
100
100
49
49
49
49

Low Clouds (% Sky Obscured)

2
2
0
0
0
0
0
0
39
39
39
39
39
39
99
99
99
99
99
99
49
49
49
49

Medium Clouds (% Sky Obscured)

2
2
42
42
42
42
42
42
100
100
100
100
100
100
98
98
98
98
98
98
1
1
1
1

High Clouds (% Sky Obscured)

0
0
97
97
97
97
97
97
95
95
95
95
95
95
72
72
72
72
72
72
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
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
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 (%)

7
7
8
11
7
5
7
11
12
10
10
8
11
13
0
3
14
21
22
12
13
24
27
34

Precipitation Amount (mm)

0.07
0.06
0.04
0.04
0.03
0.03
0.05
0.09
0.11
0.12
0.14
0.15
0.15
0.14
0
0.02
0.11
0.19
0.14
0.05
0.13
0.29
0.28
0.33

Wind Speed/Direction (mph)

6
6
8
10
11
13
14
15
16
16
16
16
15
15
13
13
12
12
14
14
14
14
15
15

Chance of Frost

Temperature (°C)

6
6
8
9
11
13
13
14
14
15
14
13
13
12
13
13
12
12
11
11
11
11
11
11

Feels Like (°C)

4
4
5
7
11
13
13
14
14
15
14
13
13
12
13
13
12
12
11
11
11
11
11
11

Dew Point (°C)

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

Relative Humidity (%)

96
97
99
97
90
83
78
76
74
69
71
75
77
78
73
77
83
86
90
91
93
94
95
95

Pressure (mb)

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

Ozone (du)

368
367
361
363
365
367
366
363
365
364
362
360
358
357
336
332
331
332
332
333
339
343
347
350

Friday 21

Waxing Gibbous 72%

14:09

03:34

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: 05:02, Set: 20:57, Transit: 12:59. Moon - Rise: 14:09, Set: 03:34. Civil Dark: 21:39 - 04:18. Nautical Dark: 22:40 - 03:17. Astro Dark: 00:31 - 01:15

Total Clouds (% Sky Obscured)

49
49
44
44
44
44
44
44
74
74
74
74
74
74
98
98
98
98
98
98
76
76
76
76

Low Clouds (% Sky Obscured)

49
49
38
38
38
38
38
38
7
7
7
7
7
7
84
84
84
84
84
84
28
28
28
28

Medium Clouds (% Sky Obscured)

1
1
19
19
19
19
19
19
72
72
72
72
72
72
95
95
95
95
95
95
73
73
73
73

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
22
22
22
22
22
22
57
57
57
57
57
57
3
3
3
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
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 (%)

22
23
58
26
14
12
11
9
6
19
32
40
42
40
25
20
17
17
21
25
27
33
44
49

Precipitation Amount (mm)

0.23
0.21
0.26
0.12
0.08
0.06
0.05
0.05
0.03
0.14
0.24
0.24
0.22
0.18
0.11
0.07
0.04
0.03
0.03
0.03
0.04
0.07
0.13
0.17

Wind Speed/Direction (mph)

16
16
16
17
17
18
18
19
19
21
21
21
22
22
23
23
23
22
22
23
23
23
24
24

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
100
100
100
95
89
86
81
77
72
75
78
84
85
79
81
85
88
90
93
94
94
95
95

Pressure (mb)

1010
1009
1010
1010
1009
1008
1007
1006
1005
1005
1004
1003
1003
1002
1001
1001
1001
1000
1000
999
999
999
998
998

Ozone (du)

356
361
363
366
368
369
371
368
367
368
366
364
363
363
367
368
369
370
370
370
370
370
370
370

Saturday 22

Waxing Gibbous 82%

15:31

03:51

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 OK
01 Good
02 Good
03 OK
04 OK

Sun - Rise: 05:01, Set: 20:58, Transit: 12:59. Moon - Rise: 15:31, Set: 03:51. Civil Dark: 21:41 - 04:16. Nautical Dark: 22:42 - 03:15. Astro Dark: 00:44 - N/A

Total Clouds (% Sky Obscured)

76
76
37
37
37
37
37
37
40
40
40
40
40
40
34
34
34
34
34
34
11
11
11
11

Low Clouds (% Sky Obscured)

28
28
34
34
34
34
34
34
13
13
13
13
13
13
23
23
23
23
23
23
2
2
2
2

Medium Clouds (% Sky Obscured)

73
73
18
18
18
18
18
18
38
38
38
38
38
38
16
16
16
16
16
16
0
0
0
0

High Clouds (% Sky Obscured)

3
3
0
0
0
0
0
0
0
0
0
0
0
0
6
6
6
6
6
6
9
9
9
9

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
None
None
Very Light Rain
Very Light Rain

Precipitation Probability (%)

45
37
34
37
46
51
47
40
32
25
20
18
20
24
28
34
39
36
23
11
0
0
6
9

Precipitation Amount (mm)

0.14
0.1
0.09
0.12
0.2
0.27
0.24
0.18
0.14
0.13
0.11
0.1
0.09
0.09
0.09
0.12
0.18
0.19
0.11
0.03
0
0
0.01
0.02

Wind Speed/Direction (mph)

24
24
24
25
25
26
26
25
25
25
24
24
23
22
22
21
20
20
19
18
17
17
16
15

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
97
99
98
96
95
94
93
91
84
77
74
75
79
82
83
81
80
81
83
84
85
86
87

Pressure (mb)

998
998
998
999
999
999
1000
1000
1001
1001
1002
1002
1002
1002
1003
1003
1004
1004
1005
1005
1006
1006
1006
1006

Ozone (du)

369
368
366
365
365
364
364
364
365
365
365
365
365
365
365
366
366
367
368
368
368
368
367
366

Sunday 23

Waxing Gibbous 90%

16:56

04:09

05 OK
06 OK
07 OK
08 OK
09 Good
10 Good
11 Good
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

Sun - Rise: 04:59, Set: 20:59, Transit: 12:59. Moon - Rise: 16:56, Set: 04:09. Civil Dark: 21:43 - 04:15. Nautical Dark: 22:44 - 03:13. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

11
11
10
10
10
10
10
10
97
97
97
97
97
97
100
100
100
100
100
100
93
93
93
93

Low Clouds (% Sky Obscured)

2
2
6
6
6
6
6
6
20
20
20
20
20
20
100
100
100
100
100
100
2
2
2
2

Medium Clouds (% Sky Obscured)

0
0
8
8
8
8
8
8
86
86
86
86
86
86
100
100
100
100
100
100
14
14
14
14

High Clouds (% Sky Obscured)

9
9
0
0
0
0
0
0
90
90
90
90
90
90
91
91
91
91
91
91
92
92
92
92

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

10
10
10
6
3
0
2
3
4
4
4
4
4
5
5
4
2
0
0
0
0
10
31
41

Precipitation Amount (mm)

0.03
0.04
0.04
0.02
0.01
0
0.01
0.03
0.06
0.07
0.07
0.07
0.09
0.1
0.1
0.05
0.01
0
0
0
0
0.14
0.79
1.58

Wind Speed/Direction (mph)

15
15
14
14
14
14
14
13
13
13
13
13
13
12
11
9
7
6
5
5
5
6
6
6

Chance of Frost

Temperature (°C)

10
10
10
11
12
13
13
14
15
16
17
17
16
15
15
14
13
11
11
10
10
9
9
9

Feels Like (°C)

7
7
10
11
12
13
13
14
15
16
17
17
16
15
15
14
13
11
11
10
8
8
8
7

Dew Point (°C)

8
8
9
9
9
9
9
9
9
9
9
9
9
9
8
9
8
8
8
8
8
8
9
9

Relative Humidity (%)

88
89
90
86
81
77
73
71
67
63
60
60
61
64
66
71
75
79
83
89
92
94
97
99

Pressure (mb)

1006
1006
1007
1007
1007
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1008
1008
1008
1008

Ozone (du)

366
367
367
368
370
372
373
374
375
375
374
373
374
374
375
375
375
374
374
373
371
368
364
361

Forecast for Sandhurst, Bracknell Forest, UK (51.35,-0.79)

Generated: 17/05/21 05:39:44. Forecast: 17/05/21 to 23/05/21. Timezone: UTC+1.00