Clear Outside v1.0 - International Weather Forecasts For Astronomers

Tuesday 16

Waning Crescent 30%

01:28

18:09

04 Bad
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

Sun - Rise: 07:17, Set: 19:51, Transit: 13:34. Moon - Rise: 01:28, Set: 18:09. Civil Dark: 20:25 - 06:43. Nautical Dark: 21:06 - 06:02. Astro Dark: 21:49 - 05:19

Total Clouds (% Sky Obscured)

96
95
91
86
73
55
58
74
100
99
100
100
98
98
98
95
85
98
92
95
92
97
100
100

Low Clouds (% Sky Obscured)

77
76
73
64
70
52
48
44
46
68
86
93
62
55
56
57
52
61
61
68
47
35
46
62

Medium Clouds (% Sky Obscured)

36
32
0
0
0
0
17
36
86
99
83
72
68
34
46
18
29
22
12
15
8
15
43
58

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
4
2
0
0
0
0
90
90
85
45
92
72
84
82
93
100
100

ISS Passover

Visibility (miles)

6
5
9
9
9
9
9
9
9
5
9
8
9
7
7
9
8
9
9
9
9
9
9
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
Very Light Rain
Very Light Rain
None
Light Rain
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

2
0
0
23
23
30
31
40
72
73
66
75
49
39
25
25
19
16
8
10
2
2
0
0

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0.3
0.3
0
0.5
0
0
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

20
19
21
21
18
18
19
20
20
20
20
20
18
16
15
13
10
7
7
8
9
9
9
9

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
89
86
86
83
82
78
74
73
75
75
72
69
74
78
79
84
89
89
89
89
90
92
93

Pressure (mb)

1009
1010
1010
1011
1012
1012
1013
1013
1014
1014
1014
1015
1015
1016
1016
1017
1017
1017
1018
1018
1018
1018
1018
1018

Ozone (du)

301
301
303
306
302
302
311
308
307
307
304
303
302
300
301
299
291
286
281
278
275
272
270
267

Wednesday 17

Waning Crescent 20%

02:53

18:35

04 Bad
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

Sun - Rise: 07:18, Set: 19:49, Transit: 13:34. Moon - Rise: 02:53, Set: 18:35. Civil Dark: 20:23 - 06:45. Nautical Dark: 21:03 - 06:04. Astro Dark: 21:46 - 05:21

Total Clouds (% Sky Obscured)

100
100
100
100
99
100
100
99
98
100
100
99
100
100
99
100
100
99
99
98
93
95
93
95

Low Clouds (% Sky Obscured)

56
27
48
60
65
84
100
70
92
100
100
96
88
100
98
100
85
79
77
85
81
78
85
93

Medium Clouds (% Sky Obscured)

63
94
97
100
98
100
100
97
97
97
99
89
97
85
80
70
73
96
97
86
87
92
87
65

High Clouds (% Sky Obscured)

100
100
100
100
27
98
96
55
1
0
0
0
0
0
0
0
95
65
0
49
0
0
0
0

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

4
32
56
59
71
85
88
79
35
36
17
4
11
9
23
21
14
17
20
26
15
34
58
22

Precipitation Amount (mm)

0
0
0.3
0.2
0.4
0.5
0.7
0.6
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.4
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

90
90
92
92
90
89
86
92
95
92
89
87
82
78
77
78
82
86
89
89
92
93
93
95

Pressure (mb)

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

Ozone (du)

263
261
259
256
255
255
253
251
251
250
249
250
253
255
255
256
256
257
257
256
256
256
255
256

Thursday 18

Waning Crescent 12%

No Rise

18:53

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

Sun - Rise: 07:20, Set: 19:47, Transit: 13:33. Moon - Rise: No Rise, Set: 18:53. Civil Dark: 20:20 - 06:46. Nautical Dark: 21:01 - 06:06. Astro Dark: 21:43 - 05:23

Total Clouds (% Sky Obscured)

98
96
100
97
100
97
99
100
95
88
97
80
72
36
9
36
43
21
10
19
21
10
16
19

Low Clouds (% Sky Obscured)

91
93
95
94
100
97
91
98
91
83
94
77
62
36
0
36
43
12
4
0
10
10
16
19

Medium Clouds (% Sky Obscured)

76
59
75
69
75
71
75
72
59
57
60
49
41
7
6
0
2
8
2
3
7
0
0
0

High Clouds (% Sky Obscured)

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
2
4
14
0
1
3
4

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

16
17
14
14
8
16
8
9
3
5
0
3
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)

13
12
12
12
12
12
14
14
15
17
15
16
15
15
13
11
9
8
7
7
7
8
7
7

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

16
16
16
16
16
17
17
18
19
19
19
20
22
22
22
21
20
19
18
19
18
18
17
16

Dew Point (°C)

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

Relative Humidity (%)

93
95
96
96
96
93
89
81
70
65
62
58
59
61
66
74
84
89
90
92
92
93
93
93

Pressure (mb)

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

Ozone (du)

257
257
257
255
254
254
253
253
254
253
252
252
251
252
252
253
253
254
254
254
253
254
254
253

Friday 19

Waning Crescent 6%

04:15

19:06

04 OK
05 OK
06 Bad
07 OK
08 OK
09 Bad
10 OK
11 OK
12 OK
13 OK
14 OK
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

Sun - Rise: 07:22, Set: 19:44, Transit: 13:33. Moon - Rise: 04:15, Set: 19:06. Civil Dark: 20:18 - 06:48. Nautical Dark: 20:58 - 06:08. Astro Dark: 21:40 - 05:25

Total Clouds (% Sky Obscured)

23
37
51
43
33
50
41
38
43
20
30
53
62
63
64
69
68
68
66
71
75
80
82
68

Low Clouds (% Sky Obscured)

23
28
29
30
21
15
8
10
13
16
11
6
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
2
42
40
40
40
40
41
47
56
29
36

High Clouds (% Sky Obscured)

5
21
51
43
32
50
41
38
43
6
19
41
58
59
62
66
64
62
60
60
59
59
61
60

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
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
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
1
1

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)

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

Chance of Frost

Temperature (°C)

15
15
14
14
14
16
18
20
22
24
25
26
27
27
25
23
22
21
20
20
20
19
18
18

Feels Like (°C)

17
16
15
13
13
15
16
18
21
22
25
26
25
26
24
22
21
19
18
18
18
18
17
17

Dew Point (°C)

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

Relative Humidity (%)

93
95
90
83
75
72
62
53
47
44
39
36
34
40
47
49
46
48
50
54
56
55
57
60

Pressure (mb)

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

Ozone (du)

252
251
251
251
252
252
253
253
253
253
252
251
251
252
254
253
253
253
253
254
255
255
254
253

Saturday 20

Waning Crescent 2%

05:34

19:17

04 Bad
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

Sun - Rise: 07:23, Set: 19:42, Transit: 13:33. Moon - Rise: 05:34, Set: 19:17. Civil Dark: 20:16 - 06:50. Nautical Dark: 20:56 - 06:10. Astro Dark: 21:38 - 05:27

Total Clouds (% Sky Obscured)

68
67
82
100
99
99
98
99
99
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98

Low Clouds (% Sky Obscured)

0
0
0
0
1
1
8
27
49
71
66
66
59
63
78
83
77
81
87
84
80
75
61
46

Medium Clouds (% Sky Obscured)

41
44
55
86
88
83
78
84
92
100
100
100
100
100
100
100
98
96
93
69
48
28
31
29

High Clouds (% Sky Obscured)

61
67
82
100
97
94
91
94
97
100
100
100
100
100
100
100
100
100
100
100
100
100
94
89

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
4
9
9
9
9
9
9
9
9
6
6
7
7
8
9
9
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
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Very Light Rain
None

Precipitation Probability (%)

1
2
2
0
3
10
63
85
84
75
85
95
95
95
95
95
95
95
95
95
95
85
68
43

Precipitation Amount (mm)

0
0
0
0
0
0
0.5
0.6
0.5
0.4
0.5
0.8
1
1.1
1.3
1.4
0.9
1.5
1.5
1.3
0.9
0.5
0.3
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

9
9
9
8
9
10
10
14
16
16
16
15
15
14
14
15
15
16
15
14
14
14
14
13

Relative Humidity (%)

58
57
57
57
57
55
55
78
90
92
93
85
81
73
73
85
92
93
93
93
93
95
96
96

Pressure (mb)

1015
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1014
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013
1013

Ozone (du)

252
252
250
251
250
251
250
251
251
251
252
252
251
252
254
255
255
257
259
260
262
265
267
268

Sunday 21

New Moon 0%

06:50

19:26

04 Bad
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

Sun - Rise: 07:25, Set: 19:39, Transit: 13:32. Moon - Rise: 06:50, Set: 19:26. Civil Dark: 20:13 - 06:51. Nautical Dark: 20:53 - 06:11. Astro Dark: 21:35 - 05:29

Total Clouds (% Sky Obscured)

98
99
99
100
100
100
100
100
100
100
89
61
37
37
37
41
61
75
88
94
97
100
100
99

Low Clouds (% Sky Obscured)

33
31
32
33
40
54
54
50
45
44
38
32
26
19
20
21
38
53
72
56
39
19
42
61

Medium Clouds (% Sky Obscured)

29
26
23
15
34
55
72
76
81
87
67
50
37
37
37
38
39
39
38
41
42
42
50
66

High Clouds (% Sky Obscured)

84
93
96
100
100
100
100
100
100
100
88
61
37
37
37
41
61
75
88
89
89
90
85
85

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
6
5
6
8
9
9
9
9
9
9
9
9
9
9
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
Very Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
Light Rain
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

12
13
8
2
25
42
57
82
95
95
95
95
95
95
94
53
45
39
16
21
26
29
27
24

Precipitation Amount (mm)

0
0
0
0
0
0
0.2
0.4
0.6
1
1.2
1.4
1.8
1.1
0.6
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
4
3
3
4
4
6
7
6
6
6
7
10
13
12
11
9
8
8
8
7
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

96
96
96
96
96
93
90
87
80
75
71
68
65
62
68
75
83
82
83
82
86
89
93
93

Pressure (mb)

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

Ozone (du)

269
270
270
271
271
273
274
275
279
282
285
288
291
294
294
295
296
298
300
302
304
306
308
310

Monday 22

Waxing Crescent 1%

08:04

19:36

04 Bad
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

Sun - Rise: 07:27, Set: 19:37, Transit: 13:32. Moon - Rise: 08:04, Set: 19:36. Civil Dark: 20:11 - 06:53. Nautical Dark: 20:51 - 06:13. Astro Dark: 21:32 - 05:31

Total Clouds (% Sky Obscured)

99
96
94
91
86
82
83
84
85
81
82
87
92
92
91
91
91
91
90
81
77
73

Low Clouds (% Sky Obscured)

72
53
39
30
34
34
36
32
28
24
34
48
60
50
40
31
26
20
15
10
5
0

Medium Clouds (% Sky Obscured)

79
70
59
49
48
41
46
47
48
49
50
51
53
57
52
47
46
46
45
43
36
39

High Clouds (% Sky Obscured)

85
85
89
84
72
65
59
56
44
30
25
30
25
35
35
35
39
58
57
41
29
11

ISS Passover

Visibility (miles)

9
9
9
9
9
9
9
9
8
6
5
5
5
5
6
8
9
9
9
9
9
9

Fog (%)

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

Precipitation Probability (%)

19
15
11
3
8
10
7
23
32
39
44
47
46
40
33
25
19
12
1
3
3
2

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

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

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

9
9
10
10
10
10
10
10
11
12
12
16
16
16
15
15
15
10
11
11
12
11

Dew Point (°C)

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

Relative Humidity (%)

95
95
93
93
93
84
76
68
65
61
58
64
68
75
78
81
86
85
85
87
88
91

Pressure (mb)

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

Ozone (du)

312
313
316
318
321
321
322
322
321
321
320
321
321
321
323
324
325
326
327
328
328
328

Forecast for De Meern, Gemeente Utrecht, Netherlands (52.08,5.03)

Generated: 16/09/25 04:53:18. Forecast: 16/09/25 to 22/09/25. Timezone: UTC+2.00