Clear Outside v1.0 - International Weather Forecasts For Astronomers

Thursday 23

Waning Gibbous 91%

20:46

09:59

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

Sun - Rise: 07:33, Set: 19:38, Transit: 13:34. Moon - Rise: 20:46, Set: 09:59. Civil Dark: 20:11 - 06:59. Nautical Dark: 20:51 - 06:20. Astro Dark: 21:32 - 05:39

Total Clouds (% Sky Obscured)

79
88
98
87
66
56
100
100
100
98
81
44
55
100
100
100
98
98
100
99
82
56
29
20

Low Clouds (% Sky Obscured)

31
31
80
75
62
56
100
100
99
89
38
31
52
100
100
100
98
98
100
99
82
56
29
20

Medium Clouds (% Sky Obscured)

0
0
0
0
0
7
31
89
98
2
0
15
12
0
0
2
0
0
0
0
0
0
0
0

High Clouds (% Sky Obscured)

70
82
88
51
13
2
58
89
87
80
70
17
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
4
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
0.02
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

12
13
14
15
15
16
17
16
14
13
12
10
8
7
6
5
5
4
5
6
7
8
8
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

98
93
89
83
78
73
70
69
68
67
67
69
70
71
72
74
75
76
79
81
86
89
92
93

Pressure (mb)

1019
1019
1019
1019
1019
1018
1019
1018
1018
1018
1018
1017
1017
1018
1018
1018
1018
1017
1017
1016
1016
1016
1016
1016

Ozone (du)

279
278
278
277
275
274
274
273
273
275
276
276
273
272
272
272
272
272
274
274
273
272
271
271

Friday 24

Waning Gibbous 84%

21:02

11:11

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

Sun - Rise: 07:34, Set: 19:35, Transit: 13:34. Moon - Rise: 21:02, Set: 11:11. Civil Dark: 20:09 - 07:01. Nautical Dark: 20:48 - 06:22. Astro Dark: 21:29 - 05:41

Total Clouds (% Sky Obscured)

16
18
15
23
41
75
45
10
2
0
0
0
4
21
29
27
9
21
27
31
91
58
1
6

Low Clouds (% Sky Obscured)

16
17
15
23
41
75
45
10
2
0
0
0
3
20
28
27
7
20
26
31
91
58
1
5

Medium Clouds (% Sky Obscured)

1
4
6
6
4
0
0
0
0
0
0
0
3
13
12
10
6
16
9
1
1
1
1
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)

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

Chance of Frost

Temperature (°C)

13
15
16
18
19
19
19
19
19
18
17
16
15
15
15
15
14
14
14
14
14
14
14
14

Feels Like (°C)

13
15
16
18
19
19
19
19
19
18
17
16
15
15
15
15
14
14
14
14
14
14
14
14

Dew Point (°C)

12
13
13
13
13
13
13
13
12
12
11
11
11
11
11
11
11
11
11
11
12
12
12
13

Relative Humidity (%)

94
89
82
75
71
68
68
66
66
66
68
72
77
79
80
82
83
84
84
86
89
91
92
92

Pressure (mb)

1016
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1014
1014

Ozone (du)

271
272
272
272
272
272
271
271
270
270
269
269
267
267
267
267
267
266
268
268
268
268
268
269

Saturday 25

Waning Gibbous 77%

21:20

12:22

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

Sun - Rise: 07:36, Set: 19:33, Transit: 13:34. Moon - Rise: 21:20, Set: 12:22. Civil Dark: 20:06 - 07:03. Nautical Dark: 20:46 - 06:23. Astro Dark: 21:27 - 05:43

Total Clouds (% Sky Obscured)

15
37
88
92
92
80
84
74
20
14
16
68
12
12
12
12
12
12
66
66
66
66
66
66

Low Clouds (% Sky Obscured)

14
37
88
91
89
73
84
74
20
14
2
0
0
0
0
0
0
0
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
55
55
55
55
55
55

High Clouds (% Sky Obscured)

1
0
0
4
20
27
0
0
0
0
14
68
12
12
12
12
12
12
27
27
27
27
27
27

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
25
26
25
18

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.06
0.34
0.6
0.6
0.22

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

13
13
13
14
14
14
14
14
14
14
14
14
13
13
12
12
12
12
12
12
12
12
12
12

Relative Humidity (%)

94
91
88
85
80
76
72
68
66
65
66
70
74
76
78
81
83
84
85
86
89
92
95
96

Pressure (mb)

1015
1015
1016
1016
1016
1016
1016
1016
1015
1015
1015
1015
1015
1015
1015
1015
1014
1014
1014
1014
1013
1013
1013
1013

Ozone (du)

269
271
272
273
273
274
277
278
277
277
277
278
278
278
277
278
278
278
277
276
277
277
278
279

Sunday 26

Waning Gibbous 68%

21:44

13:33

08 OK
09 OK
10 OK
11 OK
12 OK
13 OK
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
05 OK
06 OK
07 OK

Sun - Rise: 07:38, Set: 19:31, Transit: 13:33. Moon - Rise: 21:44, Set: 13:33. Civil Dark: 20:04 - 07:04. Nautical Dark: 20:44 - 06:25. Astro Dark: 21:24 - 05:44

Total Clouds (% Sky Obscured)

31
31
31
31
31
31
93
93
93
93
93
93
43
43
43
43
43
43
30
30
30
30
30
30

Low Clouds (% Sky Obscured)

9
9
9
9
9
9
89
89
89
89
89
89
28
28
28
28
28
28
3
3
3
3
3
3

Medium Clouds (% Sky Obscured)

2
2
2
2
2
2
15
15
15
15
15
15
29
29
29
29
29
29
19
19
19
19
19
19

High Clouds (% Sky Obscured)

23
23
23
23
23
23
26
26
26
26
26
26
11
11
11
11
11
11
13
13
13
13
13
13

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
None
None
None
None
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

Precipitation Probability (%)

10
8
5
4
4
5
6
6
6
6
6
6
4
0
0
0
0
0
5
4
0
0
4
0

Precipitation Amount (mm)

0.06
0.04
0.03
0.04
0.05
0.07
0.09
0.07
0.07
0.07
0.06
0.06
0.03
0
0
0
0
0
0.03
0.02
0
0
0.01
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

13
14
16
17
19
20
21
22
22
22
20
18
17
16
16
16
15
15
14
14
14
14
15
15

Feels Like (°C)

13
14
16
17
19
20
21
22
22
22
20
18
17
16
16
16
15
15
14
14
14
14
15
15

Dew Point (°C)

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

Relative Humidity (%)

96
96
89
85
79
72
67
63
60
60
66
71
72
74
76
78
79
81
85
87
91
93
93
93

Pressure (mb)

1013
1013
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013

Ozone (du)

280
281
283
284
284
283
284
284
284
285
286
287
284
286
289
291
291
286
282
282
281
281
280
279

Monday 27

Waning Gibbous 58%

22:14

14:41

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
05 OK
06 OK
07 OK

Sun - Rise: 07:39, Set: 19:28, Transit: 13:33. Moon - Rise: 22:14, Set: 14:41. Civil Dark: 20:02 - 07:06. Nautical Dark: 20:41 - 06:27. Astro Dark: 21:22 - 05:46

Total Clouds (% Sky Obscured)

47
47
47
47
47
47
100
100
100
100
100
100
34
34
34
34
34
34
19
19
19
19
19
19

Low Clouds (% Sky Obscured)

10
10
10
10
10
10
100
100
100
100
100
100
0
0
0
0
0
0
13
13
13
13
13
13

Medium Clouds (% Sky Obscured)

17
17
17
17
17
17
100
100
100
100
100
100
34
34
34
34
34
34
13
13
13
13
13
13

High Clouds (% Sky Obscured)

38
38
38
38
38
38
99
99
99
99
99
99
0
0
0
0
0
0
0
0
0
0
0
0

ISS Passover

Visibility (miles)

10
10
10
9
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
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

Precipitation Probability (%)

7
22
43
44
27
17
17
8
5
0
0
0
0
0
0
0
0
4
7
11
13
15
12
6

Precipitation Amount (mm)

0.01
0.11
0.35
0.37
0.27
0.28
0.24
0.05
0.01
0
0
0
0
0
0
0
0
0.02
0.04
0.05
0.07
0.07
0.04
0.01

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
88
87
85
81
78
77
73
68
63
63
67
68
68
69
70
72
74
77
80
84
87
90
91

Pressure (mb)

1012
1012
1013
1013
1014
1015
1016
1017
1018
1019
1019
1020
1019
1020
1020
1020
1021
1021
1021
1021
1021
1021
1021
1021

Ozone (du)

280
281
281
283
285
286
293
294
295
296
296
297
298
298
297
296
295
293
292
291
290
290
289
289

Tuesday 28

Waning Gibbous 49%

22:55

15:43

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 OK
00 OK
01 OK
02 Bad
03 Bad
04 Bad
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:41, Set: 19:26, Transit: 13:33. Moon - Rise: 22:55, Set: 15:43. Civil Dark: 19:59 - 07:08. Nautical Dark: 20:39 - 06:28. Astro Dark: 21:19 - 05:48

Total Clouds (% Sky Obscured)

98
98
98
98
98
98
96
96
96
96
96
96
25
25
25
25
25
25
77
77
77
77
77
77

Low Clouds (% Sky Obscured)

18
18
18
18
18
18
20
20
20
20
20
20
13
13
13
13
13
13
0
0
0
0
0
0

Medium Clouds (% Sky Obscured)

28
28
28
28
28
28
59
59
59
59
59
59
19
19
19
19
19
19
23
23
23
23
23
23

High Clouds (% Sky Obscured)

97
97
97
97
97
97
95
95
95
95
95
95
0
0
0
0
0
0
73
73
73
73
73
73

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

Precipitation Probability (%)

0
0
0
0
0
0
0
0
0
0
7
28
39
38
31
19
13
6
0
0
1
2
9
13

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0.11
0.58
1.07
0.96
0.58
0.28
0.11
0.02
0
0
0.01
0.01
0.04
0.13

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

91
87
82
77
69
61
53
48
45
45
50
60
66
68
69
70
71
70
69
70
72
75
78
82

Pressure (mb)

1021
1021
1021
1021
1021
1020
1019
1019
1018
1017
1017
1017
1016
1016
1015
1015
1014
1014
1013
1013
1012
1011
1011
1011

Ozone (du)

289
289
289
288
286
284
283
282
282
282
282
282
282
282
282
282
282
282
282
282
282
282
282
283

Wednesday 29

Third Quarter 47%

23:47

16:37

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
05 Bad
06 Bad
07 Bad

Sun - Rise: 07:43, Set: 19:24, Transit: 13:32. Moon - Rise: 23:47, Set: 16:37. Civil Dark: 19:57 - 07:09. Nautical Dark: 20:36 - 06:30. Astro Dark: 21:17 - 05:50

Total Clouds (% Sky Obscured)

43
43
43
43
43
43
70
70
70
70
70
70
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

38
38
38
38
38
38
20
20
20
20
20
20
90
90
90
90
90
90
95
95
95
95
95
95

Medium Clouds (% Sky Obscured)

27
27
27
27
27
27
58
58
58
58
58
58
100
100
100
100
100
100
99
99
99
99
99
99

High Clouds (% Sky Obscured)

0
0
0
0
0
0
26
26
26
26
26
26
100
100
100
100
100
100
87
87
87
87
87
87

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
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 (%)

18
17
20
19
20
15
14
22
41
54
56
61
61
58
52
47
45
42
37
30
16
0
0
0

Precipitation Amount (mm)

0.2
0.16
0.09
0.06
0.03
0.01
0.01
0.03
0.12
0.25
0.37
0.53
0.63
0.5
0.3
0.2
0.21
0.27
0.27
0.14
0.03
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
83
81
79
77
73
69
68
69
70
70
71
74
73
72
73
74
75
76
77
79
80
80
80

Pressure (mb)

1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1013
1013
1013
1013
1014
1014
1014
1014
1014
1013
1013
1013

Ozone (du)

283
284
284
284
285
286
287
287
287
287
289
292
296
299
303
306
308
310
314
320
328
333
334
332

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

Generated: 23/09/21 08:49:22. Forecast: 23/09/21 to 29/09/21. Timezone: UTC+2.00