Clear Outside v1.0 - International Weather Forecasts For Astronomers

Monday 20

Waning Gibbous 95%

23:25

07:40

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:40, Set: 21:36, Transit: 13:39. Moon - Rise: 23:25, Set: 07:40. Civil Dark: 22:20 - 04:57. Nautical Dark: 23:21 - 03:55. Astro Dark: 01:24 - N/A

Total Clouds (% Sky Obscured)

100
100
100
88
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

100
100
100
86
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
12
24
36
61

High Clouds (% Sky Obscured)

0
80
77
22
66
15
11
6
0
70
95
99
100
100
99
85
87
79
58
15
3
9
60
86

ISS Passover

Visibility (miles)

6
6
7
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

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 (%)

4
2
0
0
0
0
3
3
4
4
4
4
4
5
5
4
0
3
3
3
3
3
3
3

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

10
10
11
13
15
15
14
14
13
14
14
15
15
15
15
15
16
17
17
17
17
17
17
17

Chance of Frost

Temperature (°C)

13
14
14
15
15
14
14
13
13
13
12
12
12
12
12
12
12
13
13
14
15
15
16
16

Feels Like (°C)

13
14
14
15
15
14
14
13
13
13
12
12
12
12
12
12
12
13
13
14
15
15
16
16

Dew Point (°C)

11
11
11
11
11
11
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10
10

Relative Humidity (%)

85
84
82
78
76
77
80
82
84
86
86
86
86
87
87
87
86
84
81
77
73
70
69
67

Pressure (mb)

1010
1010
1010
1010
1010
1010
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1013
1013
1014
1014
1014
1015
1015

Ozone (du)

351
352
352
351
350
349
347
346
345
344
342
341
340
339
339
338
338
337
337
337
337
337
337
337

Tuesday 21

Waning Gibbous 89%

00:25

08:28

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

Sun - Rise: 05:39, Set: 21:38, Transit: 13:39. Moon - Rise: 00:25, Set: 08:28. Civil Dark: 22:21 - 04:55. Nautical Dark: 23:23 - 03:53. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

100
98
98
97
94
89
66
38
9
5
4
1
1
2
4
1
2
16
65
10
10
2
1
13

Low Clouds (% Sky Obscured)

100
94
91
74
2
9
6
2
2
3
3
1
1
1
3
0
0
13
39
9
9
0
0
13

Medium Clouds (% Sky Obscured)

66
79
95
94
65
31
13
6
2
2
1
1
1
1
1
1
1
12
61
3
1
2
1
1

High Clouds (% Sky Obscured)

77
77
68
75
86
84
60
35
5
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

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 (%)

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

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

17
17
17
16
15
14
13
11
10
9
9
9
8
8
7
7
7
7
7
7
7
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

65
62
61
61
63
66
71
77
82
85
88
90
92
93
92
90
86
80
73
66
59
56
54
53

Pressure (mb)

1015
1015
1016
1016
1016
1016
1017
1017
1018
1018
1018
1018
1018
1019
1019
1019
1019
1020
1020
1020
1020
1021
1021
1021

Ozone (du)

337
337
338
339
340
342
344
347
348
349
348
349
351
354
354
350
343
337
335
334
333
332
332
331

Wednesday 22

Waning Gibbous 82%

01:15

09:24

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

Sun - Rise: 05:38, Set: 21:39, Transit: 13:39. Moon - Rise: 01:15, Set: 09:24. Civil Dark: 22:23 - 04:54. Nautical Dark: 23:25 - 03:51. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

16
10
10
23
24
16
9
16
5
4
6
8
8
13
20
37
34
23
23
23
23
23
23
0

Low Clouds (% Sky Obscured)

13
7
7
18
13
0
0
0
0
0
0
1
6
3
5
24
28
20
20
20
20
20
20
0

Medium Clouds (% Sky Obscured)

4
5
9
20
23
16
9
16
5
4
6
8
7
12
20
34
27
11
11
11
11
11
11
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
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

9
9
9
8
7
6
4
1
2
1
3
4
4
5
6
6
7
8
8
8
8
8
8
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

50
48
46
46
46
48
52
58
63
65
65
65
65
65
64
61
57
54
51
48
46
43
41
38

Pressure (mb)

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

Ozone (du)

331
330
330
330
330
331
332
334
336
335
334
333
334
335
336
336
335
335
334
334
335
337
341
344

Thursday 23

Waning Gibbous 73%

01:56

10:25

15 Good
16 Good
17 Good
18 Good
19 Good
20 OK
21 OK
22 OK
23 OK
00 OK
01 OK
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

Sun - Rise: 05:36, Set: 21:41, Transit: 13:39. Moon - Rise: 01:56, Set: 10:25. Civil Dark: 22:25 - 04:52. Nautical Dark: 23:28 - 03:48. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

0
0
0
0
0
24
24
24
24
24
24
52
52
52
52
52
52
89
89
89
89
89
89
10

Low Clouds (% Sky Obscured)

0
0
0
0
0
9
9
9
9
9
9
9
9
9
9
9
9
7
7
7
7
7
7
6

Medium Clouds (% Sky Obscured)

0
0
0
0
0
23
23
23
23
23
23
27
27
27
27
27
27
27
27
27
27
27
27
7

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
35
35
35
35
35
35
85
85
85
85
85
85
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
6
4
4
5

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
Light Rain
Very Light Rain
Very Light Rain

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
1
2
1
1
2
2
2
3
7
18
32
40
40
29

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.01
0.01
0.02
0.02
0.02
0.01
0.01
0.01
0.06
0.2
0.36
0.41
0.38
0.32

Wind Speed/Direction (mph)

8
8
8
7
6
5
4
3
2
3
4
6
7
8
9
9
10
10
11
11
12
12
12
12

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

37
35
35
36
39
42
45
48
52
54
55
57
63
71
77
80
79
76
73
68
64
61
59
58

Pressure (mb)

1018
1017
1017
1017
1016
1016
1016
1016
1015
1015
1014
1014
1013
1013
1012
1012
1012
1011
1011
1011
1011
1011
1011
1011

Ozone (du)

343
341
340
339
340
340
341
341
342
345
348
351
355
358
360
357
353
350
349
348
349
351
354
356

Friday 24

Waning Gibbous 64%

02:29

11:29

15 OK
16 OK
17 OK
18 OK
19 OK
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 OK
09 OK
10 OK
11 OK
12 OK
13 OK
14 Bad

Sun - Rise: 05:35, Set: 21:42, Transit: 13:39. Moon - Rise: 02:29, Set: 11:29. Civil Dark: 22:26 - 04:51. Nautical Dark: 23:30 - 03:46. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

10
10
10
10
10
99
99
99
99
99
99
69
69
69
69
69
69
16
16
16
16
16
16
68

Low Clouds (% Sky Obscured)

6
6
6
6
6
0
0
0
0
0
0
62
62
62
62
62
62
7
7
7
7
7
7
10

Medium Clouds (% Sky Obscured)

7
7
7
7
7
99
99
99
99
99
99
12
12
12
12
12
12
14
14
14
14
14
14
6

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
13
13
13
13
13
13
0
0
0
0
0
0
64

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

24
19
11
9
8
8
6
0
0
0
0
0
3
4
5
4
4
4
4
5
6
5
4
3

Precipitation Amount (mm)

0.21
0.1
0.05
0.04
0.04
0.04
0.02
0
0
0
0
0
0.01
0.01
0.01
0.01
0.02
0.04
0.04
0.05
0.05
0.06
0.06
0.06

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

17
18
18
17
17
16
15
14
13
12
12
12
12
12
12
12
13
13
14
14
15
15
15
16

Feels Like (°C)

17
18
18
17
17
16
15
14
13
12
12
12
12
12
12
12
13
13
14
14
15
15
15
16

Dew Point (°C)

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

Relative Humidity (%)

57
56
57
60
65
71
77
82
85
87
89
90
90
90
88
85
82
79
76
72
70
68
67
64

Pressure (mb)

1010
1010
1010
1010
1010
1010
1010
1011
1011
1011
1012
1012
1012
1012
1012
1013
1013
1013
1014
1014
1014
1015
1015
1015

Ozone (du)

358
359
359
359
357
355
351
347
343
341
341
340
340
340
340
340
341
343
345
347
349
349
348
347

Saturday 25

Waning Gibbous 54%

02:55

12:35

15 Bad
16 Bad
17 Bad
18 Bad
19 Bad
20 Good
21 Good
22 Good
23 Good
00 Good
01 Good
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

Sun - Rise: 05:34, Set: 21:43, Transit: 13:39. Moon - Rise: 02:55, Set: 12:35. Civil Dark: 22:28 - 04:49. Nautical Dark: 23:32 - 03:44. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

68
68
68
68
68
8
8
8
8
8
8
89
89
89
89
89
89
99
99
99
99
99
99
98

Low Clouds (% Sky Obscured)

10
10
10
10
10
5
5
5
5
5
5
20
20
20
20
20
20
98
98
98
98
98
98
98

Medium Clouds (% Sky Obscured)

6
6
6
6
6
1
1
1
1
1
1
88
88
88
88
88
88
83
83
83
83
83
83
0

High Clouds (% Sky Obscured)

64
64
64
64
64
2
2
2
2
2
2
0
0
0
0
0
0
23
23
23
23
23
23
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 (%)

2
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
2
2
3
3
2
1
1

Precipitation Amount (mm)

0.04
0.02
0.01
0.01
0.02
0.02
0.01
0
0
0
0
0
0
0
0
0
0
0.01
0.02
0.04
0.05
0.04
0.02
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

59
54
52
52
54
57
62
67
72
74
76
78
81
82
83
81
79
76
72
68
63
59
55
53

Pressure (mb)

1015
1016
1016
1016
1016
1016
1016
1017
1017
1017
1017
1017
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016
1016

Ozone (du)

347
347
346
344
342
341
342
343
344
343
341
338
335
331
327
326
325
325
324
324
324
323
323
321

Sunday 26

Third Quarter 45%

03:17

13:41

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
12 Bad
13 Bad
14 Bad

Sun - Rise: 05:33, Set: 21:45, Transit: 13:39. Moon - Rise: 03:17, Set: 13:41. Civil Dark: 22:29 - 04:48. Nautical Dark: 23:34 - 03:42. Astro Dark: N/A - N/A

Total Clouds (% Sky Obscured)

98
98
98
98
98
98
98
98
98
98
98
93
93
93
93
93
93
66
66
66
66
66
66
81

Low Clouds (% Sky Obscured)

98
98
98
98
98
98
98
98
98
98
98
63
63
63
63
63
63
56
56
56
56
56
56
81

Medium Clouds (% Sky Obscured)

0
0
0
0
0
73
73
73
73
73
73
88
88
88
88
88
88
5
5
5
5
5
5
3

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
14
14
14
14
14
14
31
31
31
31
31
31
5

ISS Passover

Visibility (miles)

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

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
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
Very Light Rain
None
None

Precipitation Probability (%)

0
0
0
0
0
2
3
3
5
13
39
49
31
14
11
10
9
9
9
10
12
9
5
4

Precipitation Amount (mm)

0
0
0
0
0
0.01
0.02
0.03
0.06
0.17
0.42
0.57
0.41
0.17
0.07
0.04
0.03
0.04
0.05
0.09
0.12
0.12
0.11
0.1

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

20
20
19
18
18
18
17
17
16
16
16
16
16
16
16
15
15
15
16
16
17
17
17
18

Feels Like (°C)

20
20
19
18
18
18
17
17
16
16
16
16
16
16
16
15
15
15
16
16
17
17
17
18

Dew Point (°C)

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

Relative Humidity (%)

52
53
54
57
61
64
69
73
77
79
82
84
85
84
84
85
87
88
85
81
78
76
74
71

Pressure (mb)

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

Ozone (du)

319
315
313
312
311
312
312
312
314
316
320
323
325
325
325
324
323
322
322
323
323
322
320
319

Forecast for Spijkenisse, Spijkenisse, NL (51.86,4.30)

Generated: 20/05/19 15:45:58. Forecast: 20/05/19 to 26/05/19. Timezone: UTC+2.00