Clear Outside v1.0 - International Weather Forecasts For Astronomers

Wednesday 17

Waning Crescent 3%

07:41

14:19

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:41, Set: 16:37, Transit: 12:39. Moon - Rise: 07:41, Set: 14:19. Civil Dark: 17:16 - 08:01. Nautical Dark: 17:59 - 07:19. Astro Dark: 18:39 - 06:39

Total Clouds (% Sky Obscured)

84
84
90
86
97
100
96
99
92
87
96
88
93
100
100
100
100
100
100
97
97
100
91
98

Low Clouds (% Sky Obscured)

84
84
46
51
59
33
41
32
38
32
64
68
56
18
59
52
46
43
43
59
96
100
82
74

Medium Clouds (% Sky Obscured)

0
0
0
0
0
3
32
6
14
74
83
54
81
85
64
74
85
68
94
95
65
60
35
41

High Clouds (% Sky Obscured)

7
84
90
73
83
100
87
99
74
30
53
15
3
100
100
100
100
100
100
54
26
32
39
47

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
3
0
0
0
0
0
0
0
0
0
0
0
0
0
19
28
25
20
8
11

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
8
8
9
10
11
12
12
13
14
15
16
17
17
18
18
17
16
16
16

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

6
7
7
7
6
5
5
4
3
3
3
4
3
3
3
3
3
3
3
3
4
4
5
5

Dew Point (°C)

7
8
7
6
6
6
6
6
5
5
5
6
6
5
5
5
5
5
5
5
6
6
6
7

Relative Humidity (%)

85
84
78
78
81
85
88
88
88
88
87
88
88
85
82
81
79
78
77
75
78
76
78
78

Pressure (mb)

1019
1019
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1018
1017
1017
1016
1016
1015
1016
1015
1016
1016
1015

Ozone (du)

324
323
322
323
321
318
316
315
313
310
308
305
307
307
302
303
308
310
307
304
299
296
295
293

Thursday 18

Waning Crescent 2%

08:45

14:49

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:41, Set: 16:37, Transit: 12:39. Moon - Rise: 08:45, Set: 14:49. Civil Dark: 17:17 - 08:02. Nautical Dark: 17:59 - 07:19. Astro Dark: 18:39 - 06:39

Total Clouds (% Sky Obscured)

96
99
94
100
98
98
93
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

Low Clouds (% Sky Obscured)

64
49
33
17
0
5
12
64
67
80
86
87
87
84
90
91
80
83
87
87
91
89
87
76

Medium Clouds (% Sky Obscured)

41
37
34
40
36
43
43
79
53
81
100
100
100
100
100
99
100
100
100
100
100
100
100
100

High Clouds (% Sky Obscured)

30
70
32
94
86
32
17
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

14
5
0
0
1
6
10
21
25
23
38
53
78
88
84
79
68
74
67
80
83
81
69
57

Precipitation Amount (mm)

0
0
0
0
0
0
0
0
0
0
0
0
0.5
0.6
0.5
0.5
0.3
0.4
0
0.5
0.5
0.4
0.4
0.3

Wind Speed/Direction (mph)

16
16
17
18
19
19
20
21
22
20
19
19
18
16
16
15
15
15
13
12
11
9
7
8

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

5
6
6
6
6
6
6
6
6
6
7
7
6
7
7
7
6
7
7
7
8
8
8
8

Dew Point (°C)

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

Relative Humidity (%)

81
81
77
73
72
71
69
67
65
65
69
67
73
80
84
84
86
87
90
91
91
90
90
87

Pressure (mb)

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

Ozone (du)

290
291
290
290
285
280
276
274
273
274
274
273
270
268
270
277
284
292
307
311
318
317
317
321

Friday 19

Waning Crescent 1%

09:39

15:31

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:42, Set: 16:38, Transit: 12:40. Moon - Rise: 09:39, Set: 15:31. Civil Dark: 17:17 - 08:02. Nautical Dark: 18:00 - 07:20. Astro Dark: 18:40 - 06:40

Total Clouds (% Sky Obscured)

100
100
100
100
97
100
88
81
90
99
98
98
98
100
100
99
95
100
100
100
99
99
99
99

Low Clouds (% Sky Obscured)

77
71
67
4
8
5
2
0
0
0
2
1
4
4
6
1
18
44
61
71
79
85
87
90

Medium Clouds (% Sky Obscured)

100
100
100
100
96
84
84
73
64
85
59
49
61
92
84
63
83
98
96
97
98
99
98
99

High Clouds (% Sky Obscured)

100
100
100
100
89
97
49
17
54
94
97
98
98
100
100
99
95
98
97
82
60
44
66
67

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 (%)

45
30
16
5
2
0
0
0
0
0
0
0
0
0
0
0
1
1
5
14
23
35
48
41

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
7
7
6
5
5
4
4
4
4
4
4
4
3
2
1
2
2
3
4
4
5
5
5

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

7
5
4
5
5
5
5
5
5
4
4
4
4
4
4
4
3
3
4
3
4
4
4
4

Relative Humidity (%)

77
66
65
68
73
76
78
79
82
84
85
85
86
86
86
86
85
85
86
83
83
82
82
85

Pressure (mb)

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

Ozone (du)

322
322
325
329
332
331
329
325
303
299
298
296
294
290
288
288
289
289
287
285
286
285
286
284

Saturday 20

New Moon 0%

10:21

16:25

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:42, Set: 16:38, Transit: 12:40. Moon - Rise: 10:21, Set: 16:25. Civil Dark: 17:18 - 08:03. Nautical Dark: 18:00 - 07:20. Astro Dark: 18:40 - 06:40

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
100
100
100
99
98
99
98
98
98
98
99
99
100

Low Clouds (% Sky Obscured)

94
95
96
97
98
99
100
97
93
89
84
80
76
74
75
79
84
88
91
82
77
71
63
52

Medium Clouds (% Sky Obscured)

74
96
91
94
99
92
92
90
86
97
94
91
90
92
60
58
62
54
66
51
61
96
87
96

High Clouds (% Sky Obscured)

73
66
38
25
14
20
15
37
68
100
100
100
100
69
38
7
16
29
38
29
19
9
19
28

ISS Passover

Visibility (miles)

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

Precipitation Probability (%)

46
47
53
50
44
43
49
46
39
24
24
53
68
54
34
26
11
12
11
14
12
12
17
21

Precipitation Amount (mm)

0
0
0.2
0
0
0
0
0
0
0
0
0
0.4
0.2
0
0
0
0
0
0
0
0
0
0

Wind Speed/Direction (mph)

5
5
5
4
3
4
4
4
4
4
4
4
4
5
4
4
6
6
6
6
6
6
6
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
5
5
5
5
6
6
7
7
7
7
7
7
6
6
6
6
6
7
7
7
6
7
8

Dew Point (°C)

5
6
6
6
6
7
8
8
8
8
8
8
8
8
7
7
7
7
8
8
8
8
8
7

Relative Humidity (%)

88
91
93
94
93
94
96
96
98
96
96
95
95
96
95
95
95
93
93
95
93
90
88
85

Pressure (mb)

1014
1013
1012
1012
1011
1011
1010
1010
1010
1010
1009
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1009
1009

Ozone (du)

280
281
279
279
280
283
286
286
286
287
287
280
280
281
281
282
283
284
285
286
286
287
288
290

Sunday 21

Waxing Crescent 2%

10:51

17:31

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:43, Set: 16:39, Transit: 12:41. Moon - Rise: 10:51, Set: 17:31. Civil Dark: 17:18 - 08:03. Nautical Dark: 18:01 - 07:21. Astro Dark: 18:41 - 06:41

Total Clouds (% Sky Obscured)

100
100
100
99
99
98
97
96
95
94
95
95
94
96
97
97
93
88
86
90
96
99
100
100

Low Clouds (% Sky Obscured)

64
63
73
62
78
88
65
45
40
6
17
28
40
29
18
7
9
10
11
26
39
55
39
26

Medium Clouds (% Sky Obscured)

96
89
77
77
80
38
36
43
92
93
89
88
72
76
80
85
67
44
21
20
19
19
31
49

High Clouds (% Sky Obscured)

38
53
65
81
64
46
29
35
44
49
42
34
27
40
56
73
64
56
48
63
78
94
96
98

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 (%)

30
27
17
9
10
8
1
3
6
3
3
2
0
0
0
0
0
1
1
2
2
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)

6
6
6
5
5
5
5
5
5
6
6
5
5
5
6
6
6
7
9
10
9
7
7
6

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

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

Dew Point (°C)

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

Relative Humidity (%)

84
84
85
87
87
90
90
88
90
90
91
91
91
90
88
85
84
79
74
70
72
73
75
73

Pressure (mb)

1008
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1009
1009
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008

Ozone (du)

289
292
294
298
300
302
303
305
306
307
312
315
316
321
325
329
333
341
350
359
364
368
373
378

Monday 22

Waxing Crescent 6%

11:14

18:44

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
08 Bad
09 Bad
10 Bad
11 Bad

Sun - Rise: 08:43, Set: 16:39, Transit: 12:41. Moon - Rise: 11:14, Set: 18:44. Civil Dark: 17:19 - 08:04. Nautical Dark: 18:01 - 07:21. Astro Dark: 18:41 - 06:41

Total Clouds (% Sky Obscured)

100
100
100
100
100
100
100
100
100
100
100
99
99
99
100
100
100
100
100
100
100
100
96
93

Low Clouds (% Sky Obscured)

12
12
13
13
8
5
2
20
38
53
43
32
24
27
34
48
65
83
100
97
96
96
91
83

Medium Clouds (% Sky Obscured)

65
72
76
83
85
88
90
86
83
79
72
61
56
67
79
90
90
90
90
95
95
90
90
85

High Clouds (% Sky Obscured)

100
100
99
99
99
100
100
100
100
100
97
93
88
86
84
82
81
80
80
55
35
12
11
6

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
17
23
28
24
20
14
13
10

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)

5
5
5
5
6
6
5
5
5
4
4
3
3
4
3
3
3
3
3
3
3
3
4
4

Chance of Frost

Temperature (°C)

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

Feels Like (°C)

4
4
6
6
6
6
6
5
4
4
4
5
4
4
3
4
4
3
4
4
3
3
2
2

Dew Point (°C)

4
4
5
5
5
4
4
3
3
3
3
3
3
3
3
3
3
3
4
4
4
4
3
3

Relative Humidity (%)

70
68
70
73
75
74
75
75
77
78
79
78
78
78
79
79
81
82
83
85
85
85
83
83

Pressure (mb)

1007
1007
1007
1006
1006
1006
1007
1007
1007
1007
1007
1007
1008
1008
1008
1008
1008
1008
1008
1009
1009
1009
1010
1010

Ozone (du)

383
388
391
394
397
399
400
402
400
399
398
398
399
400
399
399
399
399
400
400
402
404
407
405

Tuesday 23

Waxing Crescent 12%

11:31

20:01

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

Sun - Rise: 08:43, Set: 16:40, Transit: 12:42. Moon - Rise: 11:31, Set: 20:01. Civil Dark: 17:19 - 08:04. Nautical Dark: 18:02 - 07:22. Astro Dark: 18:42 - 06:42

Total Clouds (% Sky Obscured)

89
90
92
93
95
97
100
95
89
84
86
87
93
94
96
98
95
93
91

Low Clouds (% Sky Obscured)

75
73
76
72
75
78
81
80
70
65
71
81
92
92
94
95
84
73
66

Medium Clouds (% Sky Obscured)

80
80
75
70
70
65
65
46
29
13
8
4
0
0
0
0
0
1
1

High Clouds (% Sky Obscured)

5
25
54
64
66
78
85
64
47
32
27
22
11
10
12
16
27
38
49

ISS Passover

Visibility (miles)

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

Precipitation Type

None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None
None

Precipitation Probability (%)

3
4
3
0
1
0
0
1
1
1
5
6
6
9
11
14
13
12
11

Precipitation Amount (mm)

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

Wind Speed/Direction (mph)

5
5
5
4
3
4
4
5
5
4
4
4
5
5
5
5
6
6
6

Chance of Frost

Temperature (°C)

6
6
6
5
5
4
3
3
3
3
3
4
4
4
4
5
5
5
4

Feels Like (°C)

2
2
2
2
2
1
1
1
1
2
2
2
2
2
2
2
3
3
3

Dew Point (°C)

3
3
3
3
2
2
1
1
1
1
1
2
2
2
2
2
2
2
2

Relative Humidity (%)

81
81
82
83
83
85
86
88
88
88
88
86
85
83
82
83
83
83
83

Pressure (mb)

1010
1010
1010
1011
1011
1011
1011
1011
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012
1012

Ozone (du)

404
402
404
406
407
408
408
408
404
399
394
396
399
401
402
404
406
404
403

Forecast for Brussels, Bruxelles-Capitale, Kingdom of Belgium (50.85,4.35)

Generated: 17/12/25 12:59:03. Forecast: 17/12/25 to 23/12/25. Timezone: UTC+1.00